Skip navigation.

Feed aggregator

Kscope15 Abstract deadline is Wednesday, October 15!

Tim Tow - Sat, 2014-10-11 13:08
Kscope15 abstract submission will close in just a few days and the ODTUG content teams want you!

I am sure there are many of you who have never done a presentation at a conference and may not feel comfortable speaking in public. Well, I have a secret for you, despite the fact that I won the Best Speaker Award at Kscope14, I share your discomfort with speaking. What works for me, however, is that I only speak about topics that I know very well. Do you have some area of expertise that you know really well? If you do, please share it! It will be fun and all of your peers who learn something new, from you, will appreciate it!

With that, take the next step and click here to submit session!
Categories: BI & Warehousing

OCP 12C – SQL Tuning

DBA Scripts and Articles - Fri, 2014-10-10 12:23

What’s new ? Oracle 12c introduces a major update called Adaptive Query Optimization which is based on : Adaptive execution plans Adaptive Statistics These two functionnalities are used to improve execution plans by using dynamic statistics gathered during the first part of the SQL execution. This allow to create more efficient plans that those using [...]

The post OCP 12C – SQL Tuning appeared first on Oracle DBA Scripts and Articles (Montreal).

Categories: DBA Blogs

Oracle OpenWorld and JavaOne OTN Interviews - Part 1

OTN TechBlog - Fri, 2014-10-10 11:22
Oracle OpenWrold and JavaOne 2014 are over and the OTN Community Managers are busy editing TONS of video they took with Oracle experts and community members at the events. This week's best of will focus on the Java and Architect Community videos posted so far. Next Friday we will focus on the Database and Systems Communities. Architect Community From OTN Architect Community Manager Bob Rhubart

During Oracle OpenWorld 2014 I spent most of my time in the OTN Lounge recording 2 Minute Tech Tips, as presented by a small army of architects and developers. The premise is simple: each person has to beat the clock to deliver an interesting tech tip before the countdown timer runs down. All of the participants were great sports, and putting these videos together involved a lot of laughter. The three videos below are just a sample of the more than 28 Tech Tip videos now available -- and more are on the way!

Click here for more 2 Minute Tech Tip Videos.

Java Community From OTN Java Sr. Community Manager Tori Wieldt JavaOne 2014 I spent most of my time in the Java Hub recording video. Below is just a sample of what is to come, more is on the way!
  • Java ME and ProSyst Software
    Dr. Dimitar Valtchev, CTO of ProSyst Software, discusses Java ME and working with small devices with Java ME. Live from JavaOne, by Tori Wieldt of the Oracle Technology Network..
  • IoT Dev Challenge Student Winners: ePot
    JavaOne interview with the student winners of the OTN IoT Developer Challenge.
  • JavaFX and ObjectWheel
    Mike Tallent, CEO of ObjectWheel, discusses using drag-and-drop to create UIs with ObjectWheel. Live from JavaOne, by Tori Wieldt of the Oracle Technology Network..

Click here for more OTN JavaOne Videos.

Did You See Our Work in Steve Miranda’s Keynote?

Oracle AppsLab - Fri, 2014-10-10 09:28

Last week at OpenWorld, a few of our projects were featured in Steve Miranda’s (@stevenrmiranda) keynote session.

Jeremy (@jrwashley) tweeted the evidence.

jatweet

Debra (@debralilley) noticed too. I wasn’t able to attend the keynote, so I found out thanks to the Usable Apps (@usableapps) Storify, which chronicled “Our OpenWorld 2014 Journey.”

And today, I finally got to see the video, produced by Friend of the ‘Lab, Martin Taylor, who you might remember from other awesome videos like “A Smart Holster for Law Enforcement.”

Noel (@noelportugal) and Anthony (@anthonyslai) both play developers in the short film. Noteworthy, the expression on Noel’s face as he drives the Sphero ball with the Muse, brain-sensing headband.

Thanks to Martin for making this video, thanks to Steve for including it in his keynote, and thanks to you for watching it.Possibly Related Posts:

What the Internet of Things means for database administration

Chris Foot - Fri, 2014-10-10 08:41

When it comes to storing data produced by Internet-connected devices, relational databases may not make the cut.

The push for NoSQL environments is growing in tandem with the pace at which wearable machines and industrial sensors is increasing. Database administration services are customizing systems to fit the needs of manufacturers, hospitals, retailers and other companies investing heavily in the Internet of Things.

The rise of the Industrial Internet
General Electric has expressed a considerable amount of interest in the technology, equipping its wind turbines, jet engines, locomotives and other machines to boost efficiency. The goal is to develop smarter implementations that will cumulatively save economic sectors hundreds of billions of dollars.

To achieve this goal, GE is partnering with Cisco, Intel and Verizon to create intelligent factories and public infrastructures, according to InformationWeek. For example, while Cisco's rugged routers will be placed throughout a facility, Intel's chips and servers will support computations. To enable GE's sensors to use these assets, Verizon will provide networking. With this environment, GE's devices will be able to perform predictive maintenance, power optimization and other tasks.

GE isn't preventing organizations from customizing these platforms, either. InformationWeek noted the company is developing Predix, a data aggregation and processing solution that's based on open-source technologies. This enables GE customers to create their own algorithms, code and data sources.

How it affects database administration
As distributed machines communicate with one another, produce native data and draw conclusions of their own, storing such information in SQL databases isn't the best option, noted IoT World contributor Sherly Mendoza. The issue comes down to how these environments store information

While SQL systems offer consistency and reliability, Mendoza maintained they require a lot of processing power to manage indexes and buffers as well as lock, latch and log data. In addition, although database experts can mitigate this problem, relational databases aren't easy to scale.

The solution lies in non-relational servers, which don't require administrators to assign information to schemes. The result is an architecture comprised of simple data structures that can be manipulated and adjusted as professionals require them. Because the data produced by the IoT is primarily unstructured, this makes NoSQL databases the optimal choice.

One key advantage of NoSQL environments is their ability to pull and organize data distributed across multiple servers. This means they can also scale across two machines or more, making hardware capacity less of a concern.

Preparing for the IoT boom requires considerable knowledge of non-relational databases, as well as the staff capable of enhancing these implementations.

The post What the Internet of Things means for database administration appeared first on Remote DBA Experts.

Deploying a Private Cloud at Home — Part 2

Pythian Group - Fri, 2014-10-10 08:34

Today’s blog post is part two of seven in a series dedicated to Deploying Private Cloud at Home, where I will demonstrate how to do basic configuration setup to get started with OpenStack. In my first blog post, I explained why I decided to use OpenStack.

I am using a two-node setup in my environment, but you can still follow these steps and configure everything on single node. The below configuration reflects my setup. Kindly modify it as per your subnet and settings.

  • My home network has subnet of 192.168.1.0/24
  • My home PC which I am turning into controller node has IP of 192.168.1.140
  • MY KVM Hypervisor which I am turning to compute node has IP of 192.168.1.142
  1. It is advisable to have DNS setup in your intranet but just in case you don’t have it, you need to modify /etc/hosts file on both controller and compute node in order for OpenStack services to communicate to each other like below
    #Controller node
    192.168.1.140 controller
    #Compute node
    192.168.1.142 compute
  2. OpenStack services require a database to store information. You can use any database you are familiar with. I am using MySQL/MariaDB, as I am familiar with it. On the controller node, we will install the MySQL client and server packages, and the Python library.
     yum install -y mysql mysql-server MySQL-python
  3. Enable InnoDB, UTF-8 character set, and UTF-8 collation by default. To do that we need to modify /etc/my.cnf and set the following keys under [mysqld] section.
    default-storage-engine = innodb 
    innodb_file_per_table 
    collation-server = utf8_general_ci 
    init-connect = 'SET NAMES utf8' 
    character-set-server = utf8
  4. Start and enable the MySQL services
    service mysqld start
    chkconfig mysqld on
  5. Finally, set the root password for MySQL database. If you need further details about configuring the MySQL root password, there are many resources available online.
  6. On the compute node we need to install the MySQL Python library
    yum install -y MySQL-python
  7. Set up RDO repository on both controller and compute nodes
    yum install -y http://repos.fedorapeople.org/repos/openstack/openstack-icehouse/rdo-release-icehouse-4.noarch.rpm
  8. I am using CentOS 6.2 so I need to have epel repo as well. This step is not required if you are using distro other then RHEL, CentOS, Scientific Linux etc.
    yum install http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
  9. Install OpenStack utilities on both nodes and get started.
    yum install openstack-utils

Stay tuned for the remainder of my series, Deploying a Private Cloud at Home. In part three, we will continue configuring OpenStack services.

Categories: DBA Blogs

SQL Saturday Bulgaria 2014

Pythian Group - Fri, 2014-10-10 08:22

 

This Saturday October 11, I will be speaking at SQL Saturday Bulgaria 2014 in Sofia. It’s my first time in the country and I’m really excited to be part of another SQL Saturday :)

I will be speaking about Buffer Pool Extension, a new feature on SQL Server 2014. If you want to learn a little more about the new SQL Server version, don’t hesitate to attend the event. Looking forward to seeing you there!

Categories: DBA Blogs

October WEBCAST - Oracle Access Management 11g Integration with E-Business Suite

Chris Warticki - Fri, 2014-10-10 08:20

E-Business Suite Applications Technology Group (ATG)

Advisor Webcast Program – October 2014

October 2014 WEBCAST - Oracle Access Management 11g Integration with E-Business Suite

When :      Thursday October 16, 2014

                   at 18:00 UK / 10:00 PST / 11:00 MST / 13:00 EST

This one-hour advisor webcast is recommended for technical users, system administrators, Database Administrators, etc. who are planning to integrate the Oracle Access Management product in an E-Business Suite  Environment, to use Single-Sign-On.

Topics Included:

·         Oracle Identity and Access Management  11g – The Big Picture.

·         Oracle Access Manager  vs. Oracle Single Sign-On Server.

·         What is Oracle Access Manager 11g.

·         Evaluate the Current SSO Situation. 

◦   Build/New

◦   Migrate/Upgrade

·         Oracle Access Manager Certifications with the E-Business Suite.

·         Demonstration

·         Troubleshooting Oracle Access Manager 11g.

·         Q&A

Details & Registration : Note 1928382.1

Direct link to register for the Webcast.

If you have any question about the schedules or if you have a suggestion for an Advisor Webcast to be planned in future, please send an E-Mail to Ruediger Ziegler.

Log Buffer #392, A Carnival of the Vanities for DBAs

Pythian Group - Fri, 2014-10-10 08:19

It seems its all about cloud these days. Even the hardware is being marketed with cloud in perspective. Databases like Oracle, SQL Server and MySQL are ahead in the cloud game and this Log Buffer Edition covers that all.


Oracle:

Oracle Database 12c was launched over a year ago delivering the next-generation of the #1 database, designed to meet modern business needs, providing a new multitenant architecture on top of a fast, scalable, reliable, and secure database platform.

Oracle OpenWorld 2014 Session Presentations Now Available.

Today, Oracle is using big data technology and concepts to significantly improve the effectiveness of its support operations, starting with its hardware support group.

Generating Sales Cloud Proxies using Axis? Getting errors?

How many page views can Apex sustain when running on Oracle XE?

SQL Server:

Send emails using SSIS and SQL Server instead of application-level code.

The public perception is that, when something is deleted, it no longer exists. Often that’s not really the case; the data you serve up to the cloud can be stored out there indefinitely, no matter how hard to try to delete it.

Every day, out in the various online forums devoted to SQL Server, and on Twitter, the same types of questions come up repeatedly: Why is this query running slowly? Why is SQL Server ignoring my index? Why does this query run quickly sometimes and slowly at others?

You need to set up backup and restore strategies to recover data or minimize the risk of data loss in case a failure happens.

Improving the Quality of SQL Server Database Connections in the Cloud

MySQL:

Low-concurrency performance for updates and the Heap engine: MySQL 5.7 vs previous releases.

Database Automation – Private DBaaS for MySQL, MariaDB and MongoDB with ClusterControl.

Removing Scalability Bottlenecks in the Metadata Locking and THR_LOCK Subsystems in MySQL 5.7.

The EXPLAIN command is one of MySQL’s most useful tools for understanding query performance. When you EXPLAIN a query, MySQL will return the plan created by the query optimizer.

Shinguz: Migration between MySQL/Percona Server and MariaDB.

Categories: DBA Blogs

Oracle embraces open source technology [VIDEO]

Chris Foot - Fri, 2014-10-10 07:47

Transcript

Want the benefit of managing an open source database? Oracle's looking to help you.

Welcome to RDX. Oracle Enterprise Manager will now include administration and monitoring functions for MySQL, the world's most popular open source relational database.

Database Trends and Applications noted that cloud and on-premise MySQL versions will receive a new line of backup, auditing and encryption functions to help database experts reinforce security. In addition, Oracle Enterprise Manager enables MySQL database users to monitor availability, measure performance and boost performance, as well as configure thresholds.

Thanks for watching

The post Oracle embraces open source technology [VIDEO] appeared first on Remote DBA Experts.

Alfresco Summit 2014 - Conferences, Day 2 - Best Practices & Monitoring

Yann Neuhaus - Fri, 2014-10-10 07:00


As I said in my last blog, the Alfresco Summit 2014 took place in London from October 7 to 9. So yeah, unfortunately yesterday was the last day of this amazing event. It's the first time I had the chance to participate in an Alfresco Summit but I'm quite sure it will not be the last! I can't tell what moment I preferred during this event because the Keynote (presentation of Alfresco One 5.0) was very impressive and I really enjoyed it! All presentations were very interesting too but if I should pick just one thing, I think I would choose... The two evening parties Cool.

So more seriously, on the second day of conferences, I had the opportunity to attend a lot of sessions about best practices. The principal reason why I choose these kind of session is because I wanted to confront dbi services' best practices about Alfresco to best practices of other Alfresco consultants (either Alfresco employees or Alfresco partners). Best practices sessions covered several different fields like:

  • Security
  • Performance
  • Replication, Backup & Disaster Recovery
  • Monitoring
  • Sizing
  • Aso...


Yesterday morning, I had the chance to attend to a session presented by Miguel Rodriguez (Technical Account Manager at Alfresco) about how to monitor an Alfresco installation. For the end of this blog, I will summarize the presentation of Miguel to show you how this solution is powerful! So the presentation wasn't just about how to monitor a JVM, it was really more advanced because Miguel presented how to control all Alfresco environments (Dev, Test, Prod, aso...) in a single place with several tools.

The monitoring of Alfresco can be divided into three different categories:

  • Monitoring and treatment of Alfresco logs
  • Monitoring of the OS/JVM/Alfresco/Solr/Database
  • Sending alerts to a group of people regarding the two categories above

 

I. Monitor and treat Alfresco logs


This first part about the monitoring and treatment of Alfresco logs needs three software:

  • Logstash: it's an utility that can be used to monitor events or log files and to execute little commands (like a "top")
  • ElasticSearch: this tool is able to index log files to do some restful search and analytics after that. This will be very useful for this part
  • Kibana3: the last software is the one used for the interface. It will just be used to query the index created by ElasticSearch and beautifully display the results. The Kibana3 page is composed of boxes fully customizable directly from the interface and that are refreshed automatically every X seconds (also customizable)


So here, we have a complete log monitoring & treatment solution. This solution can be used to display all errors in all alfresco log files in the last X secondes/minutes/hours, aso... But it can also be used to apply filters on all log files. For example, if you want to find all log entries related to "License", then you just have to type "license" in the search box. As all log entries are indexed by ElasticSearch (using Lucene), then all boxes on the interface will be refreshed to only display data related to "license".

b2ap3_thumbnail_Kibana3.jpgImage from Jeff Potts' blog. This image display data related to JMeter but same results could be applied to Alfresco.

 

II. Monitoring of the OS/JVM/Alfresco/Solr/Database/...


This second part is as simple as the first one:

  • Logstash: this time, logstash is more used to execute commands to retrieve numerical data. These commands can be Unix commands (e.g. "top" to retrieve current CPU consumption) but they can also be JMX commands to retrieve certain values from the JVM like free heap space. More details are available below.
  • Graphite: this utility will just retrieve all numerical information generated by Logstash and then store them in a database
  • Grafana: as above, this part need an interface... And in the same way, the page is fully customizable directly from the interface. You can add as many boxes (each box represent a diagram, often a line chart) as you want with as many information available in your database.


When I first saw the interface of Grafana, I thought "Oh, it looks like jconsole". But this was really only my first impression. On this interface, you can add different boxes to display numerical data about not only one Alfresco Node but about all Alfresco Nodes! For example, you will be able to display boxes with the CPU consumption, memory consumption, the JVM heap size (permgen, used, free, aso...) and all these boxes will show data related to all Nodes of your cluster. All this kind of stuff is already available through jconsole. But in addition to what jconsole is capable of, you will be able to display boxes related to (non-exhaustive list):

  • All database sessions available and all used
  • Tomcat threads
  • Disk i/o
  • Alfresco documents in the repository and in Solr (Solr store documents in a different way)
  • Health of the indexing: based on different values, we can know if the indexing is working well or if some tuning is required
  • Index workers and tracking status: this chart show if there is a gap between the tracking of documents by Solr and the indexing of these documents which would means that Solr isn't indexing at that time (probably an issue)
  • Solr transactions
  • Concurrent users
  • Aso...

 Grafana.pngImage extracted from the demonstration of Miguel Rodriguez

 

III. Sending alerts


You are probably aware of some tools like Nagios that can be used to send alerts of different sorts. So let me present you a tool that you may not know: Icinga. This is the last tool that we will use for this monitoring solution and it's pretty much the same thing that Nagios (it's a fork of Nagios (2009)). With this tool, you are able to define some rules with a low threshold and a high threshold. If a threshold is reached, then the status of the rule is updated to Warning or Critical (e.g. Server Free Memory below 20% = Warning ; Server Free Memory below 10% = Critical). At the same time, an alert is sent to the group of people defined as contact in case of threshold reached. Well it's pretty much the same thing that Nagios or other tools like that so I will not describe Icinga deeper.

 b2ap3_thumbnail_Icinga.jpgImage from Toni de la Fuente's Blog

 

So here we are, we now have a lot of different tools used to provide a really good passive and active monitoring solution. But I hear your complaints from here about "Hey, there are way too much components to install, this is too difficult!". Well let me finish! All tools above are Open Source tools and are available as a package created by Packer. This utility let you create a virtual machine "template" with all needed components pre-installed. So you are able to just download the package and after the execution of a single command, you will have a new virtual machine up and running with all monitoring components. The only remaining step is to install a Logstash agent on each components of Alfresco (Alfresco Nodes, Solr Nodes) and configure this agent to retrieve useful data.


I was really impressed by this session because Miguel Rodriguez showed us a lot of very interesting tools that I didn't know. His monitoring solution looks really pretty well and I'm quite sure I will take some time to try it in the next few weeks.


I hope you have enjoyed this article as much as I enjoyed Miguel's session and if you want to download your own version of this Monitoring VM, take a look at Miguel's Github account.

 

APEX 5.0 New Features - Terminverschiebung

Denes Kubicek - Fri, 2014-10-10 07:00
leider müssen wir den Termin für den bei uns gebuchten Kurs "Oracle APEX 5.0: New Features" (Termin: 08/09.12.2014) auf den Februar 2015 (09.02/10.02) aus gegebenem Anlass verschieben.

Wie Sie/Ihr bereits bestimmt erfahren haben, wird sich das Release von Oracle APEX 5.0 etwas verschieben: https://blogs.oracle.com/apexcommunity_deutsch/de/entry/openworld_update_application_express.

Sie können sich hier zum Kurs anmelden.
Categories: Development

Another Great OpenWorld

Steve Karam - Fri, 2014-10-10 05:00
Steve at the Delphix Booth

Last week I attended Oracle OpenWorld 2014, and it was an outstanding event filled with great people, awesome sessions, and a few outstanding notable experiences.

Personally I thought the messaging behind the conference itself wasn’t as amazing and upbeat as OpenWorld 2013, but that’s almost to be expected. Last year there was a ton of buzz around the introduction of Oracle 12c, Big Data was a buzzword that people were totally excited and not too horribly burnt out on, and there was barely a cloud in the sky. This year cloud it was cloud all about cloud the Cloud cloud (Spoiler alert: it was the Cloud all along) which just didn’t have that same excitement factor.

But it’s still OpenWorld, set in the heart of San Francisco with tens of thousands of buzzing Oracle faithful. And therefore it was still a pretty awesome time.

Jonathan Lewis at the Delphix BoothThis year I went representing Delphix, and man did we represent. The enthusiasm and technical curiosity were evident as our booth filled up for three days straight with folks eager to hear the good news of the data virtualization. I have to say, the DBA in me finds the promise of syncing databases to a software platform that can provision full-size, read/write clones in a couple minutes with no additional disk usage quite alluring. But there was more to the message than the technology behind the platform; there were also a plethora of use cases that captured people’s attention. Faster and more on-time business intelligence and analytics, application and database testing, regulatory compliance, and more. If that wasn’t enough, we also had Jonathan Lewis, Tim Gorman, Kyle Hailey, Ben Prusinski, and yours truly speaking at the booth which was a great bit of fun and drew a lot of folks that wanted to learn more.

On Monday I was honored to be invited back on SiliconAngle’s conference web show theCUBE to talk about copy data, Delphix, the Cloud (that should be fun for people running Cloud to Butt), Oracle’s strategy, and more. They had not one but two booths at OpenWorld this year. The always charismatic and ever savvy Dave Vellante and I had an outstanding chat, which you can see right here!

Another fantastic part of the conference was OakTable World, which is technically not part of OpenWorld…rather, it is a “secret” conference-within-a-conference. Held at the Children’s Museum nestled in the bosom of the Moscone Center (yay visuals), this conference features a lineup of incredibly technical folks talking about incredibly technical things to the wonder and amazement of all. This year was no different, with a great assortment of no-nonsense presentations. On the 2nd day of OakTable World there was also something I liked to call the Attack of the Attacks: #CloneAttack, #RepAttack, and #MonitorAttack. This event featured Delphix, DBVisit, and SolarWinds Confio and allowed people to get the software installed on their own laptops for tinkering, learning, and testing.

Pythian put on a couple exciting events as always, with the Friends of Pythian party on Monday night and the OTN Blogger Meetup on Wednesday. Both events were a blast as always, with a huge assortment of members of the Oracle community and beyond. Honestly, it’s worth going just for the good food and to see Alex Gorbachev stand up on a booth bench and try to hush a crowd of buzzing datafiends.

All in all it was an outstanding OpenWorld and it was great catching up with some amazing and brilliant people. I can’t wait to see you all again next year!

The post Another Great OpenWorld appeared first on Oracle Alchemist.

Notes on predictive modeling, October 10, 2014

DBMS2 - Fri, 2014-10-10 02:40

As planned, I’m getting more active in predictive modeling. Anyhow …

1. I still believe most of what I said in a July, 2013 predictive modeling catch-all post. However, I haven’t heard as much subsequently about Ayasdi as I had expected to.

2. The most controversial part of that post was probably the claim:

I think the predictive modeling state of the art has become:

  • Cluster in some way.
  • Model separately on each cluster.

In particular:

  • It is always possible to instead go with a single model formally.
  • A lot of people think accuracy, ease-of-use, or both are better served by a true single-model approach.
  • Conversely, if you have a single model that’s pretty good, it’s natural to look at the subset of the data for which it works poorly and examine that first. Voila! You’ve just done a kind of clustering.

3. Nutonian is now a client. I just had my first meeting with them this week. To a first approximation, they’re somewhat like KXEN (sophisticated math, non-linear models, ease of modeling, quasi-automagic feature selection), but with differences that start:

  • While KXEN was distinguished by how limited its choice of model templates was, Nutonian is distinguished by its remarkable breadth. Is the best model for your data a quadratic polynomial in which some of the terms are trigonometric functions? Nutonian is happy to find that for you.
  • Nutonian is starting out as a SaaS (Software as a Service) vendor.
  • A big part of Nutonian’s goal is to find a simple/parsimonious model, because — although this is my phrasing rather than theirs — the simpler the model, the more likely it is to have robust explanatory power.

With all those possibilities, what do Nutonian models actually wind up looking like? In internet/log analysis/whatever kinds of use cases, I gather that:

  • The model is likely to be a polynomial — of multiple variables of course — of order no more than 3 or 4.
  • Variables can have time delays built into them (e.g., sales today depend on email sent 2 weeks ago). Indeed, some of Nutonian’s flashiest early modeling successes seem to be based around the ease with which they capture time-delayed causality.
  • In each monomial, all variables except 1 are likely to be “control”/”capping”/”transition-point”/”on-off switch”/logical/conditional/whatever variables — i.e., variables whose range is likely to be either {0,1} or perhaps [0,1] instead.

Nutonian also servers real scientists, however, and their models can be all over the place.

4. One set of predictive modeling complexities goes something like this:

  • A modeling exercise may have 100s or 1000s of potential variables to work with. (For simplicity, think of a potential variable as a column or field in the input data.)
  • The winning models are likely to use only a small fraction of these variables.
  • Those may not be variables you’re thrilled about using.
  • Fortunately, many variables have strong covariances with each other, so it’s often possible to exclude your disfavored variables and come out with a model almost as good.

I pushed the Nutonian folks to brainstorm with me about why one would want to exclude variables, and quite a few kinds of reasons came up, including:

  • (My top example.) Regulatory compliance may force you to exclude certain variables. E.g., credit scores in the US mustn’t be based on race.
  • (Their top example.) Some data is just expensive to get. E.g., a life insurer would like to come up with a way to avoid using blood test results in their decision making, because they’d like to drop the expense of the blood tests.
  • (Perhaps our joint other top example.) Clarity of explanation is an important goal. Some models are black boxes, and that’s that. Others are also supposed to uncover causality that helps humans make all kinds of better decision. Regulators may also want clear models. Note: Model clarity can be affected by model structure and variable(s) choice alike.
  • Certain variables can simply be more or less trusted, in terms of the accuracy of the data.
  • Certain variables can be more or less certain to be available in the future. However, I wonder how big a concern that is in a world where models are frequently retrained anyway.

5. I’m not actually seeing much support for the theory that Julia will replace R except perhaps from Revolution Analytics, the company most identified with R. Go figure.

6. And finally, I don’t think it’s wholly sunk in among predictive modeling folks that Spark both:

  • Has great momentum.
  • Was designed with machine learning in mind.
Categories: Other

Fun : Destination Mars !

Jean-Philippe Pinte - Fri, 2014-10-10 01:33
Et voilà mon Boarding Pass pour Mars !
Demandez le votre


Difference between 2014 and 2015 cadillac srx

Ameed Taylor - Fri, 2014-10-10 01:21
On the off chance that that you would be capable to't consider that any little Cadillac vehicles of the past, envision yourself fortunate, as not one or the other the Opel Omega-based completely Catera or Chevy Cavalier-based Cimarron offer specifically affectionate memories. serendipitously, the only thing that matters now could be the way that the Difference between 2014 and 2015 cadillac srx remains as a fantastic entrance in a class loaded with overachieving movement vehicles.

its a well known fact that the Cadillac other individuals have pointed the back wheel-drive 2015 cadillac escalade platinumsoundly at the balanced BMW 3 succession, which has laid out the portion for a considerable length of time. The 2015 cadillac fleetwood price outside measurements principally recreate those of the 3 accumulation, and the 2015 cadillac escalade redesign bargains pleasant develop quality, feisty effectiveness and an including weight together with a supple ride, much the same as the benchmark Bimmer. Cadillac's most up to date form likewise bargains an intelligent electronic interface with which to work all the nearby inside solace doohickeys, which is a vital component in this section of lavish cars.

The 2015 cadillac escalade first drive stacks up well against its opponent. On the expressway, it supplies great direction feel and a light-footed, shrewdly adjusted ride. Helping the sharp elements is reality that this Caddy is the lightest car in its classification (by utilizing 70-150 pounds, contingent upon trim). further adding to the ATS's physicality is its best 50/50 weight circulation between the passageway and back wheels.

With a trio of motor decisions close by, the 2015 cadillac hybrid productivity ranges from lukewarm to intriguing. the base 2.5-liter 4 serves as the expense and gas financial framework pioneer, actually assuming its 202-drive yield slacks in the again of the base motors found in the opposition. in the mean time, the turbocharged 2.0-liter inline-4 packs a superb midrange punch and is the main alternative inside the ATS extend that might be had with a manual gearbox. With 321 hp, the vivacious V6 offers a sweet soundtrack and is intelligently matched to a dreadfully responsive computerized transmission.

There are various minor contemplations with the ATS. aficionados may requirement for a handbook gearbox with the top motor, while the back seats and trunk are substantially less spacious than what a few adversaries give. indeed, this stage isn't exactly dispossessed of ability, either. The 2013 BMW three grouping still takes high respects by utilizing goodness of its progressed base powertrain and much more alluring driving flow, in any case it is normally ordinarily dearer. We're furthermore marginally partial to the correspondingly intelligently adjusted Audi A4, the refined Mercedes-Benz C-class and cost stuffed - if no more as cleaned - Infiniti G vehicle. however general, the 2013 Cadillac ATS is an extremely solid contender in the, exceptionally aggressive segment of reduced diversion vehicles.

2015 cadillac escalade premium
The 2015 cadillac escalade hp is a five-traveler, extravagance situated action vehicle that is given in four trim extents: base, sumptuous, productivity and top rate.

standard gimmicks on the bottom trim incorporate 17-inch combination wheels, warmed mirrors, mechanized headlights, journey control, twin-zone programmed atmosphere manage, six-way vitality front seats with vitality lumbar, leatherette premium vinyl upholstery, a tilt-and-extendable direction wheel, Onstar, Bluetooth telephone network and a seven-speaker Bose sound framework with satellite radio, an ipod/USB interface and an assistant sound jack.

the luxurious trim gives run-level tires, keyless entrance/ignition, far flung motor begin, eight-methodology force doorway seats, front and back park support, a rearview computerized cam, an auto-darkening rearview imitate, calfskin seating, driver memory works, a 60/forty part collapsing back seat (with move-thru), HD radio, Bluetooth sound streaming and the CUE infotainment interface.

The proficiency trim (no more accessible with 2.5-liter motor) further gives twin fumes outlets, a Driver cognizance bundle arrangement (forward crash caution, back cross-site guests alarm, path takeoff cautioning, programmed wipers and back seat feature airbags), a vivacious air grille, xenon headlights, an overhauled 10-speaker Bose encompass sound gadget (with a CD member), door action seats (with driver-aspect support change) and a set back seat with pass-through.


Stepping as much as the top class trim (not on hand with 2.5-liter engine) adds 18-inch wheels, a navigation machine, a color head-up display and the 60/forty cut up-folding rear seat. An 2015 cadillac escalade images top rate with rear-wheel force additionally comes with summer tires, a sport-tuned suspension, adaptive suspension dampers and a limited-slip rear differential.


among the features which can be usual for the upper trim ranges are to be had as options on the lower trims. just a few other not obligatory applications are also available. the driving force help package includes the features from the awareness package deal and provides adaptive cruise keep watch over, blind-spot monitoring, collision education with brake help, and the colour head-up show. The cold climate bundle contains heated entrance seats and a heated guidance wheel. The monitor performance bundle provides an engine oil cooler and upgraded brake pads. other options embrace totally different wheels, a sunroof and a trunk cargo organizer.

when will the 2015 cadillac escalade be available
the 2.5 fashions include a 2.5-liter 4-cylinder engine that produces 202 hp and one hundred ninety pound-toes of torque. the 2.0 Turbo fashions include a turbocharged 2.0-liter 4-cylinder rated at 272 hp and 260 lb-feet of torque. the 3.6 fashions include a three.6-liter V6 that cranks out 321 hp and 274 lb-feet of torque.

All 2015 cadillac escalade jalopnik engines come matched to a six-pace computerized transmission aside from the two.0 Turbo, which can also be had with a six-velocity handbook. Rear-wheel drive is standard across the board, with all-wheel power optional for the 2.zero- and 3.6-liter engines.

In Edmunds checking out, a rear-force ATS 2.0T with the manual went from zero to 60 mph in 6.3 seconds. A rear-drive ATS 3.6 top class with an automated accelerated from zero to 60 mph in 5.7 seconds. each times are reasonable among in a similar fashion powered entry-stage activity sedans.

EPA-estimated gasoline financial system for the ATS 2.5 stands at 22 mpg city/33 mpg freeway and 26 mpg blended. The V6 is estimated to succeed in 19/28/26 with rear-wheel power and Cadillac claims the two.zero-liter Turbo will get the same with an automatic transmission. With all-wheel power, the ATS V6 drops to 18/26/21.
build 2015 cadillac escalade
standard safety features for the new 2015 cadillac escalade for sale embody antilock disc brakes, traction regulate, balance keep an eye on, energetic front head restraints, front-seat aspect and knee airbags and entire-size aspect curtain airbags. additionally usual is OnStar, which includes automated crash notification, on-demand roadside help, far off door unlocking, stolen vehicle assistance and switch-with the aid of-turn navigation. non-compulsory are the aforementioned Driver consciousness and Driver assistance applications.

In Edmunds brake testing, an ATS 3.6 premium got here to a stop from 60 mph in an impressively short 108 feet. A 2.0T stopped in an ordinary distance of 113 feet.
2015 cadillac deville price
within its cabin, the photos of 2015 cadillac escalade boasts plenty of top quality materials, together with tasteful timber and steel accents. The on hand CUE infotainment interface features huge icons and operates like an iPhone or iPad, which is to say you use it by tapping, flicking, swiping or spreading your fingers -- making it familiar for a lot of users. moreover, "Haptic" comments allows you to understand while you've pressed a virtual button by using pulsing when you contact it.

Up front, the seats do a pleasant job of protecting one in situation right through spirited drives, and it is quite straightforward to find a comfortable riding position. Oddly, the not obligatory game seats do not present rather more in the best way of lateral enhance for the motive force, despite their energy-adjustable bolsters.

Rear-seat headroom is good, but knee room is tight for taller people. regardless of a wide opening, the 2015 cadillac escalade length trunk deals just 10.2 cubic ft of capability — downright stingy for this phase. fortuitously, some trims function a 60/forty split-folding rear seat, which helps on this regard.
2015 cadillac escalade pictures
The 2015 cadillac escalade vs infiniti qx80 is an impressive all-around performer, because of a poised experience, sure-footed cornering functionality and superb response from the guidance and brakes. the two.5-liter engine is smooth, however it offers tepid acceleration compared to other entry-stage powertrains, notably that of the BMW 328i. opt for one of the crucial different ATS engines, then again, and you can have no complaint, as they supply thrust extra in line with this Cadillac's athletic personality. even supposing fans could lament the lack of a guide transmission for the V6, the six-pace automated is tricky to fault. Switched to game mode, this automated is aware of just when to hold a equipment and provides smooth, rev-matched downshifts right on time, each time.

Even with its wearing calibration, the cadillac new models 2015 takes neglected city streets in stride, absorbing the shock of potholes and damaged pavement with out upsetting the automobile or its occupants. because of this, the compact Cadillac makes for a nice day by day driver that can also provide a whole lot of leisure on a Sunday morning power.


Categories: DBA Blogs

Difference between 2014 and 2015 cadillac srx

EBIZ SIG BLOG - Fri, 2014-10-10 01:21
On the off chance that that you would be capable to't consider that any little Cadillac vehicles of the past, envision yourself fortunate, as not one or the other the Opel Omega-based completely Catera or Chevy Cavalier-based Cimarron offer specifically affectionate memories. serendipitously, the only thing that matters now could be the way that the Difference between 2014 and 2015 cadillac srx remains as a fantastic entrance in a class loaded with overachieving movement vehicles.

its a well known fact that the Cadillac other individuals have pointed the back wheel-drive 2015 cadillac escalade platinumsoundly at the balanced BMW 3 succession, which has laid out the portion for a considerable length of time. The 2015 cadillac fleetwood price outside measurements principally recreate those of the 3 accumulation, and the 2015 cadillac escalade redesign bargains pleasant develop quality, feisty effectiveness and an including weight together with a supple ride, much the same as the benchmark Bimmer. Cadillac's most up to date form likewise bargains an intelligent electronic interface with which to work all the nearby inside solace doohickeys, which is a vital component in this section of lavish cars.

The 2015 cadillac escalade first drive stacks up well against its opponent. On the expressway, it supplies great direction feel and a light-footed, shrewdly adjusted ride. Helping the sharp elements is reality that this Caddy is the lightest car in its classification (by utilizing 70-150 pounds, contingent upon trim). further adding to the ATS's physicality is its best 50/50 weight circulation between the passageway and back wheels.

With a trio of motor decisions close by, the 2015 cadillac hybrid productivity ranges from lukewarm to intriguing. the base 2.5-liter 4 serves as the expense and gas financial framework pioneer, actually assuming its 202-drive yield slacks in the again of the base motors found in the opposition. in the mean time, the turbocharged 2.0-liter inline-4 packs a superb midrange punch and is the main alternative inside the ATS extend that might be had with a manual gearbox. With 321 hp, the vivacious V6 offers a sweet soundtrack and is intelligently matched to a dreadfully responsive computerized transmission.

There are various minor contemplations with the ATS. aficionados may requirement for a handbook gearbox with the top motor, while the back seats and trunk are substantially less spacious than what a few adversaries give. indeed, this stage isn't exactly dispossessed of ability, either. The 2013 BMW three grouping still takes high respects by utilizing goodness of its progressed base powertrain and much more alluring driving flow, in any case it is normally ordinarily dearer. We're furthermore marginally partial to the correspondingly intelligently adjusted Audi A4, the refined Mercedes-Benz C-class and cost stuffed - if no more as cleaned - Infiniti G vehicle. however general, the 2013 Cadillac ATS is an extremely solid contender in the, exceptionally aggressive segment of reduced diversion vehicles.

2015 cadillac escalade premium
The 2015 cadillac escalade hp is a five-traveler, extravagance situated action vehicle that is given in four trim extents: base, sumptuous, productivity and top rate.

standard gimmicks on the bottom trim incorporate 17-inch combination wheels, warmed mirrors, mechanized headlights, journey control, twin-zone programmed atmosphere manage, six-way vitality front seats with vitality lumbar, leatherette premium vinyl upholstery, a tilt-and-extendable direction wheel, Onstar, Bluetooth telephone network and a seven-speaker Bose sound framework with satellite radio, an ipod/USB interface and an assistant sound jack.

the luxurious trim gives run-level tires, keyless entrance/ignition, far flung motor begin, eight-methodology force doorway seats, front and back park support, a rearview computerized cam, an auto-darkening rearview imitate, calfskin seating, driver memory works, a 60/forty part collapsing back seat (with move-thru), HD radio, Bluetooth sound streaming and the CUE infotainment interface.

The proficiency trim (no more accessible with 2.5-liter motor) further gives twin fumes outlets, a Driver cognizance bundle arrangement (forward crash caution, back cross-site guests alarm, path takeoff cautioning, programmed wipers and back seat feature airbags), a vivacious air grille, xenon headlights, an overhauled 10-speaker Bose encompass sound gadget (with a CD member), door action seats (with driver-aspect support change) and a set back seat with pass-through.


Stepping as much as the top class trim (not on hand with 2.5-liter engine) adds 18-inch wheels, a navigation machine, a color head-up display and the 60/forty cut up-folding rear seat. An 2015 cadillac escalade images top rate with rear-wheel force additionally comes with summer tires, a sport-tuned suspension, adaptive suspension dampers and a limited-slip rear differential.


among the features which can be usual for the upper trim ranges are to be had as options on the lower trims. just a few other not obligatory applications are also available. the driving force help package includes the features from the awareness package deal and provides adaptive cruise keep watch over, blind-spot monitoring, collision education with brake help, and the colour head-up show. The cold climate bundle contains heated entrance seats and a heated guidance wheel. The monitor performance bundle provides an engine oil cooler and upgraded brake pads. other options embrace totally different wheels, a sunroof and a trunk cargo organizer.

when will the 2015 cadillac escalade be available
the 2.5 fashions include a 2.5-liter 4-cylinder engine that produces 202 hp and one hundred ninety pound-toes of torque. the 2.0 Turbo fashions include a turbocharged 2.0-liter 4-cylinder rated at 272 hp and 260 lb-feet of torque. the 3.6 fashions include a three.6-liter V6 that cranks out 321 hp and 274 lb-feet of torque.

All 2015 cadillac escalade jalopnik engines come matched to a six-pace computerized transmission aside from the two.0 Turbo, which can also be had with a six-velocity handbook. Rear-wheel drive is standard across the board, with all-wheel power optional for the 2.zero- and 3.6-liter engines.

In Edmunds checking out, a rear-force ATS 2.0T with the manual went from zero to 60 mph in 6.3 seconds. A rear-drive ATS 3.6 top class with an automated accelerated from zero to 60 mph in 5.7 seconds. each times are reasonable among in a similar fashion powered entry-stage activity sedans.

EPA-estimated gasoline financial system for the ATS 2.5 stands at 22 mpg city/33 mpg freeway and 26 mpg blended. The V6 is estimated to succeed in 19/28/26 with rear-wheel power and Cadillac claims the two.zero-liter Turbo will get the same with an automatic transmission. With all-wheel power, the ATS V6 drops to 18/26/21.
build 2015 cadillac escalade
standard safety features for the new 2015 cadillac escalade for sale embody antilock disc brakes, traction regulate, balance keep an eye on, energetic front head restraints, front-seat aspect and knee airbags and entire-size aspect curtain airbags. additionally usual is OnStar, which includes automated crash notification, on-demand roadside help, far off door unlocking, stolen vehicle assistance and switch-with the aid of-turn navigation. non-compulsory are the aforementioned Driver consciousness and Driver assistance applications.

In Edmunds brake testing, an ATS 3.6 premium got here to a stop from 60 mph in an impressively short 108 feet. A 2.0T stopped in an ordinary distance of 113 feet.
2015 cadillac deville price
within its cabin, the photos of 2015 cadillac escalade boasts plenty of top quality materials, together with tasteful timber and steel accents. The on hand CUE infotainment interface features huge icons and operates like an iPhone or iPad, which is to say you use it by tapping, flicking, swiping or spreading your fingers -- making it familiar for a lot of users. moreover, "Haptic" comments allows you to understand while you've pressed a virtual button by using pulsing when you contact it.

Up front, the seats do a pleasant job of protecting one in situation right through spirited drives, and it is quite straightforward to find a comfortable riding position. Oddly, the not obligatory game seats do not present rather more in the best way of lateral enhance for the motive force, despite their energy-adjustable bolsters.

Rear-seat headroom is good, but knee room is tight for taller people. regardless of a wide opening, the 2015 cadillac escalade length trunk deals just 10.2 cubic ft of capability — downright stingy for this phase. fortuitously, some trims function a 60/forty split-folding rear seat, which helps on this regard.
2015 cadillac escalade pictures
The 2015 cadillac escalade vs infiniti qx80 is an impressive all-around performer, because of a poised experience, sure-footed cornering functionality and superb response from the guidance and brakes. the two.5-liter engine is smooth, however it offers tepid acceleration compared to other entry-stage powertrains, notably that of the BMW 328i. opt for one of the crucial different ATS engines, then again, and you can have no complaint, as they supply thrust extra in line with this Cadillac's athletic personality. even supposing fans could lament the lack of a guide transmission for the V6, the six-pace automated is tricky to fault. Switched to game mode, this automated is aware of just when to hold a equipment and provides smooth, rev-matched downshifts right on time, each time.

Even with its wearing calibration, the cadillac new models 2015 takes neglected city streets in stride, absorbing the shock of potholes and damaged pavement with out upsetting the automobile or its occupants. because of this, the compact Cadillac makes for a nice day by day driver that can also provide a whole lot of leisure on a Sunday morning power.


Categories: APPS Blogs

ESP8266 – Cheap WiFi for your IoT

Oracle AppsLab - Thu, 2014-10-09 21:14

About a month ago, hackaday.com broke the news of a new Wifi chip called ESP8266 that costs about $5. This wireless system on a chip (SoC) took all the IoT heads (including me) by surprise. Until now if you wanted to integrate wifi to any DIY project you had to use more expensive solutions. To put this into perspective, my first wifi Arduino shield was about $99!

F0FZH4CI0RYTMAP.LARGE

So I ordered a few of them (I think I’m up to 10 now!) and went to test the possibilities. I came up with a simple Instructable to show how can you log a room temperature to the Cloud. I used an Arduino to do this, but one of the most amazing things about this chip is that you can use it as stand alone! Right now documentation is sparse, but I was able to compile the source code using a gcc compiler toolchain created by the new esp8266 community.

But why is this important to you even if you haven’t dabble with DIY electronics? Well this chip comes from China and even though it doesn’t have an FCC stamp of  approval (yet), it signals the things about to come. This is what I call the Internet of Things r(evolution). Prices of these chips are at a historical low, and soon we will see more and more products connecting to the Internet/Cloud. From light switches, light bulbs, to washer machines, dishwashers. Anything that needs to be turned on or off could potentially have one of these. Anything that can collect data like thermostats, smoke detectors etc. could also potentially have it.

So you scared or will you welcome our new internet overlords?Possibly Related Posts:

Documentum upgrade project: ADTS local user or domain user?

Yann Neuhaus - Thu, 2014-10-09 18:43

ADTS local user or domain user: Which user should I choose as the installation owner? This question is important if you are installing a new Advanced Document Transformation Services (ADTS).  You can opt for a domain user in order to have one user for several ADTS installations with less AD management. Or you may want to opt for local users to separate the installations, but you will have to manage all users independently. In fact, we will see that you don't really have the choice.

As you may know, the ADTS server is a bunch of software interacting between each other. You have:

  • Microsoft Office products (Word, Excel, PowerPoint ...)
  • EMC Software
  • Adlib for EMC Software

And most of these software work thanks to Windows Services and some of these services need a user to run:

 

 Service  Log On As
 Start Order  Stop Order  Adlib Exponent Connector  ADTS Install Owner  auto  6  Adlib Exponent Manager  ADTS Install Owner  3  5  Adlib FMR  Local System  2  4  Adlib Process Manager  Local System  1  3  Documentum Content Transformation Monitor Service  Local System  4  auto  Documentum Content Transformation Service  ADTS Install Owner  auto  1  Documentum CTS Admin Agent  Local System  5  2


As you can see in the previous table I put 'ADTS Install Owner' into the table as 'Log On As'. That means a local user must be created for these services. Why can't we use AD user?

That is simple, the services are sessions-related. They are started under the specific user. But an AD user cannot be connected for ever on the system, maybe due to policies. In fact, the session is disabled and the services are stopped or cannot be started properly. Thus, the renditions are not created anymore.

Also note that if you are using Remote Desktop Connection and login with the installation owner, do not forget to unmap the printer as it can cause issues with the Adlib printer which is normally set as the default printer. Edit your .RDP file, go to tab Local Resources and untick Printers. The Adlib printer can be replaced by your own one as default, preventing the ADTS to use the correct printer.

A good practice is to use a different user than the installation owner for basic administration tasks.

Partner Webcast – Oracle Database 12c (12.1.0.2): Are you ready for the Future of the Database?

Oracle Database 12c was launched over a year ago delivering the next-generation of the #1 database, designed to meet modern business needs, providing a new multitenant architecture on top of a fast,...

We share our skills to maximize your revenue!
Categories: DBA Blogs