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  • Live Webcast, Dec. 6: Enterprise Clouds with Oracle VM

    - by Monica Kumar
    Mark your calendar! On Tuesday, Dec. 6th at 9am PT, we are hosting a live webcast with Oracle VM experts. Enterprise Clouds with Oracle VM Tuesday, Dec. 6 at 9 AM US PT The ability to create a cloud leveraging public or private infrastructure has been hampered by the lack of availability of practical, cost-effective choices for server virtualization. In this session, you will learn how Oracle provides a single virtualization solution for your entire infrastructure, and how Oracle Enterprise Manager and Oracle Virtual Assembly Builder help you manage Oracle Applications across the cloud. Also find out how virtualization was leveraged to transform IT for Oracle University and support more than 350,00 students in more than 40,000 classes each year. Those lessons have paved the path to private cloud computing inside Oracle. Speakers: Adam Hawley, Senior Director of Product Management, Oracle Dan Herrup, Principal Systems Engineer, Oracle Corporate Citizenship Register Now.

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  • Can You Name the Top 10 Technology Trends?

    - by kellsey.ruppel
    Can You Name the Trends? No need to do the research. Come to this Webcast and find out. Join the conversation as Andy Mulholland, Global CTO, Capgemini, discusses the 10 game-changing technology trends that will enable business innovation. As you might expect, three of the trends discussed will be: Mobility: from nice-to-have to a cornerstone of user engagement Big data: how to acquire, organize, and analyze it Cloud computing: how to build applications, automate processes, collaborate, and secure the enterprise But you’ll have to attend the Webcast to learn about the other seven trends. Register now. And profit from the experience. REGISTER NOW Thurs., July 19, 201210 a.m. PT / 1 p.m. ET Presented by: Andy MulhollandGlobal CTO, Capgemini Christian FinnSenior Director, Oracle WebCenter Product Management, Oracle Copyright © 2012, Oracle. All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

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  • How important is Discrete Mathematics for a Computer Scientist?

    - by mort
    As the title says, How important is Discrete Mathematics for a Computer Scientist? Background: I'm pursuing a Master's degree with a focus on fundamentals such as Algorithms, Complexity and Computability Theory and Programming Languages to get a good foundation for working in the field of Parallel Computing. Some more background: My university grants a lot of freedom in the choices of courses for my Master's degree. It's officially called "Software Engineering", but due to a the broad range of electives, a different focus is possible. Interestingly, none of the electives is a lecture in Math! I'm thinking about doing a course about Discrete Mathematics that would take half a semester to complete successfully, even if I can't use it for my degree. So with this question I'm trying to find out if the effort is justifiable.

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  • Changing the Game: Why Oracle is in the IT Operations Management Business

    - by DanKoloski
    v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";} Next week, in Orlando, is the annual Gartner IT Operations Management Summit. Oracle is a premier sponsor of this annual event, which brings together IT executives for several days of high level talks about the state of operational management of enterprise IT. This year, Sushil Kumar, VP Product Strategy and Business Development for Oracle’s Systems & Applications Management, will be presenting on the transformation in IT Operations required to support enterprise cloud computing. IT Operations transformation is an important subject, because year after year, we hear essentially the same refrain – large enterprises spend an average of two-thirds (67%!) of their IT resources (budget, energy, time, people, etc.) on running the business, with far too little left over to spend on growing and transforming the business (which is what the business actually needs and wants). In the thirtieth year of the distributed computing revolution (give or take, depending on how you count it), it’s amazing that we have still not moved the needle on the single biggest component of enterprise IT resource utilization. Oracle is in the IT Operations Management business because when management is engineered together with the technology under management, the resulting efficiency gains can be truly staggering. To put it simply – what if you could turn that 67% of IT resources spent on running the business into 50%? Or 40%? Imagine what you could do with those resources. It’s now not just possible, but happening. This seems like a simple idea, but it is a radical change from “business as usual” in enterprise IT Operations. For the last thirty years, management has been a bolted-on afterthought – we pick and deploy our technology, then figure out how to manage it. This pervasive dysfunction is a broken cycle that guarantees high ongoing operating costs and low agility. If we want to break the cycle, we need to take a more tightly-coupled approach. As a complete applications-to-disk platform provider, Oracle is engineering management together with technology across our stack and hooking that on-premise management up live to My Oracle Support. Let’s examine the results with just one piece of the Oracle stack – the Oracle Database. Oracle began this journey with the Oracle Database 9i many years ago with the introduction of low-impact instrumentation in the database kernel (“tell me what’s wrong”) and through Database 10g, 11g and 11gR2 has successively added integrated advisory (“tell me how to fix what’s wrong”) and lifecycle management and automated self-tuning (“fix it for me, and do it on an ongoing basis for all my assets”). When enterprises take advantage of this tight-coupling, the results are game-changing. Consider the following (for a full list of public references, visit this link): British Telecom improved database provisioning time 1000% (from weeks to minutes) which allows them to provide a new DBaaS service to their internal customers with no additional resources Cerner Corporation Saved $9.5 million in CapEx and OpEx AND launched a brand-new cloud business at the same time Vodafone Group plc improved response times 50% and reduced maintenance planning times 50-60% while serving 391 million registered mobile customers Or the recent Database Manageability and Productivity Cost Comparisons: Oracle Database 11g Release 2 vs. SAP Sybase ASE 15.7, Microsoft SQL Server 2008 R2 and IBM DB2 9.7 as conducted by independent analyst firm ORC. In later entries, we’ll discuss similar results across other portions of the Oracle stack and how these efficiency gains are required to achieve the agility benefits of Enterprise Cloud. Stay Connected: Twitter |  Face book |  You Tube |  Linked in |  Newsletter

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  • [News] Le mouvement NoSQL et MongoDB

    Le mouvement "NoSQL" est une communaut? cr??e dans le but de promouvoir les bases de donn?es non relationnelles (d'o? le terme NoSQL). Dans cet hymne ? ce mouvement, Michael Kennedy, instructeur pour DevelopMentor, d?crit les pr?ceptes de NoSQL en l'illustrant ? travers un moteur finalement peu connu du grand public, MongoDB. A lire, tr?s int?ressant m?me si on ne partage pas l'opinion de cette communaut? : "(...) A basic SQL Server cluster might run you $100,000 just to get it up and running on decent hardware. Rather than leveraging crazy scaling-up options, the NoSQL databases let you scale-out. They make this possible (dare I say easy?) by dropping the relational aspects of a database (...) "

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  • Le prix Turing pour un chercheur de légende, Google et Intel applaudissent ce « Nobel de l'informati

    Un chercheur légendaire reçoit le prix Turing Google et Intel applaudissent ce "Nobel de l'informatique" remis à un employé de Microsoft Qui a inventé la métaphore du "bureau" d'un PC ? Qui a introduit le premier la notion d'interface graphique pour le dit bureau ? Qui a créé la première barre des taches ? Qui, en somme, a inventé le "prototype des ordinateurs personnels de réseau" ? Un seul et même homme : Chuck Thacker. Pour tous ses travaux précurseurs qui ont façonné ce que sont les ordinateurs d'aujourd'hui, la ACM (Association for Computing Machinery) vient de lui décerner le prestigieux Prix Turing, équivalent du Prix Nobel dans l...

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  • ORACLE Cloud Summits

    - by Thomas Leopold
      Next Generation of Enterprise Cloud Computing     Markieren Sie sich den Termin für Ihren Oracle Enterprise Cloud Summit. 02. März 2011 in Hannover 03. März 2011 in Hannover 15. März 2011 in Frankfurt 22. März 2011 in München Bei Rückfragen schreiben Sie einfach eine E-Mail an [email protected].   Copyright © 2011, Oracle and/or its affiliates.All rights reserved. Contact Us | Legal Notices and Terms of Use | Privacy Statement

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  • Windows 8 : L'OS pourrait embarquer Internet Explorer 10 à sa sortie, et le navigateur serait tactile

    Windows 8 : L'OS pourrait embarquer Internet Explorer 10 à sa sortie, et le navigateur serait tactile Mise à jour du 18.03.2011 par Katleen Et c'est parti pour une rumeur de plus. Celle-ci vient de Chine, et affirme que Microsoft prévoirait de sortir la prochaine version d'Internet Explorer avec Windows 8. Les deux programmes seraient même liés, puisque le navigateur serait intégré à l'OS. De plus, comme ce système à venir devrait logiquement être recentré sur le Cloud Computing et optimisé pour les tablettes (voir les news précédentes), il semble logique à certains de dire que IE10 sera tactile. Les prochains mois pourraient donc voir arriver un package "touch friendly", si ces supposition...

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  • JavaOne - Java SE Embedded Booth - Servergy Micro Server

    - by David Clack
    Hi All,  So it's been awhile, I've been working with all the ARM and Power Architecture partners we have now on testing Java SE Embedded. We will have a Java SE Embedded for ARM and PPC at Java One next week, I'll be bringing in some of the great ARM and PPC systems to demonstrate.  The first system I'd like to tell you about is a really cool 8 core Power Architecture Micro Server from a company in Dallas called Servergy. Java One will be it's first public outing, Bill Mapp the CEO will be doing a talk at the Java Embedded @ JavaOne conference in the Hotel Nikko, right next door to the JavaOne show in the Hilton. To read more about Servergy https://www.linux.com/news/enterprise/cloud-computing/641488-linux-based-servergy-advances-data-center-efficiency http://www.servergy.com/ If you are registered at JavaOne you can come over to the Java Embedded @ JavaOne for $100 Come see us in booth 5605 See you there Dave

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  • Unity Frustum Culling Issue

    - by N0xus
    I'm creating a game that utilizes off center projection. I've got my game set up in a CAVE being rendered in a cluster, over 8 PC's with 4 of these PC's being used for each eye (this creates a stereoscopic effect). To help with alignment in the CAVE I've implemented an off center projection class. This class simply tells the camera what its top left, bottom left & bottom right corners are. From here, it creates a new projection matrix showing the the player the left and right of their world. However, inside Unity's editor, the camera is still facing forwards and, as a result the culling inside Unity isn't rendering half of the image that appears on the left and right screens. Does anyone know of a way to to either turn off the culling in Unity, or find a way to fix the projection matrix issue?

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  • Windows Azure Platform TCO/ROI Analysis Tool

    - by kaleidoscope
    Microsoft have released a tool to help you figure out how much money you can save by switching to Windows Azure from your on-premises solution. The tool will provide you with a customized estimate of potential cost savings you (or your company or organization) may achieve by building on the Windows Azure Platform. Upon completion of the TCO and ROI Calculator profile analysis, you will be presented with a detailed report which shows estimated line item costs for an accurate TCO and a 1 to 3 year ROI analysis for you or your company or organization. You should not interpret the analysis report you receive as a part of this process to be a commitment on the part of Microsoft, and Microsoft makes no guarantees regarding the accuracy of any information presented in the report. You should not view the results of this report as a substitute for engaging with a third party expert to independently evaluate you or your company’s specific computing needs. The analysis report you will receive is for informational purposes only. For more information check this link. Geeta, G

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  • National ID Cards

    Have you heard about the national ID card? While I had heard little about this program I had not given it any real attention until recently while listening to Bill O’Reilly and Lou Dobbs. Both made some great points as to how such a card could increase security and reduce fraud in the United States [...] Related posts:Your Life And The Government Choices Cloud Computing In Corporate and Home Environments ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • 7-minute Community GlassFish Clustering Screencast

    - by alexismp
    Community member Faissal has recently put up a 7-minute screencast of an un-edited setup of a GlassFish cluster. His clustering setup spans across a mac and a virtualized Ubuntu host. It can probably be further simplified using the SSH provisioning feature (asadmin install-node) to avoid logging into remote machines. You may remember John's GlassFish clustering in under 10 minutes, a very successful video which was based on version 2. Since that we've put out a number of demos on YouTube for our 3.1.x versions including a full webinar replay.

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  • multithreading problem with Nvidia PhysX

    - by xcrypt
    I'm having a multithreading problem with Nvidia PhysX. the SDK requires that you call Simulate() (starts computing new physics positions within a new thread) and FetchResults(waits 'till the physics computations are done). Inbetween Simulate() and FetchResults() you may not 'compute new physics' It is proposed (in a sample) that we create a game loop as such: Logic (you may calculate physics here and other stuff) Render + Simulate() at start of Render call and FetchResults at end of Render() call However, this has given me various little errors that stack up: since you actually render the scene that was computed in the previous iteration in the game loop. I wonder if there's a way around this? I've been trying and trying, but I can't think of a solution...

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  • Reminder: GlassFish 3.1 Clustering Webinar Today!

    - by alexismp
    Quick reminder for those of you that missed the GlassFish Clustering Webinar from March, we have a new session today (June 28th, 2011). The session is planned at 10:00 a.m. PT / 1:00 p.m. ET / 19.00 CT and you'll need to register first. John Clingan, Principal Product Manager for GlassFish, will walk you through the various clustering features introduced and enhanced in version 3.1. This includes the SSH-based provisioning of clusters (never log in to any machine again), the centralized administration, High Availability and smart failover, load-balancer, Domain Admin Server (DAS) performance improvements, cluster deployments and more. Other than learning about these new product features this is also your chance to ask questions to John and other GlassFish team members. See you there!

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  • Visual Studio 2010 & Windows Azure Launch

    If youre involved in any capacity with software development, or want to understand more about cloud computing, this is a half-day event not to be missed. Come along to the official New Zealand launch of Visual Studio 2010 and Windows Azure. Weve lined up two international experts, Sam Guckenheimer and David Chappell to deliver our two keynote sessions. Plus, to mark the occasion, were producing a very cool retro t-shirt for all attendees,...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • IBM simule le cerveau d'un singe avec son supercalculateur Blue Gene/Q qui a émulé 530 milliards de neurones

    IBM simule le cerveau d'un singe avec son supercalculateur Blue Gene/Q qui a émulé 530 milliards de neurones IBM vient de réaliser de nouvelles prouesses dans le domaine de l'intelligence artificielle. La division de recherche de la société a simulé avec succès 530 milliards de neurones dans un réseau basé sur le modèle CoCoMac (connectivité structurelle dans le cerveau d'un singe). Le système est basé sur le supercalculateur IBM Blue Gene/Q du laboratoire de recherche Livermore Lawrence. Ce système comprend 1 024 « compute nodes » par armoire et 17 noyaux de processus par « compute nodes », reposant sur l'architecture IBM TrueNorth Cognitive Computing. Le...

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  • Oracle will be a Bronze Sponsor of Grace Hopper Celebration of Women in Cmputing

    - by bubbva
    Oracle is proud to be a Bronze Sponsor at the upcoming Grace Hopper Celebration of Women in Computing from October 3-6, 2012 in Baltimore, MD. Oracle's Women's Leadership group, Oracle's Diversity & Inclusion program and Product Development are proud to be behind this sponsorship.Several women from Oracle will be presenting and participating at the conference: Industry Track: "From Engineer to Executive; The Path Forward", speaker Susan Zwinger VP, Global Systems Technology Service Center Industry Track: "Are We There Yet? Finding Your Career Sweet Spot", speaker Gilda Garreton, Principal Software Engineer Birds of a feather:  "Juggling Our Different Worlds", speaker Gilda Garreton New Investigator Co-Chair, Gilda Garreton Communities Committee Co-Chair, Valerie Fenwick, Manager Software Development "Considering a shift in career from Technical towards Management?" table host,  Valerie Fenwick Oracle will have a booth as well, so stop by and introduce yourself!

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  • GTK applications do not start

    - by Greg
    Hello, I have a fresh install of Ubuntu 10.04 Server on nodes of a computational cluster, and I access the nodes via ssh. I configured a X server, which I start with the command startx -- -ac. The server is running fine on port :0. Then, I set the environment variable DISPLAY to :0. Now, when I run a GTK application on the node, it fails with the following error: Error: Unable to initialize gtk, is DISPLAY set properly? Now, my question is, is there any runtime library that I need for running GTK applications on top of a X server? I'm probably missing something obvious here, but I can't tell what :P

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  • E-Business Suite R12 Certified on 2012 Hyper-V Windows Guests

    - by John Abraham
    Oracle E-Business Suite Release 12 (12.1) is now certified on Windows Server 2008 (32-bit) and Windows Server 2008 R2 running as guest operating systems within Window Server 2012 Hyper-V virtual machines. Hyper-V is a built-in feature of Microsoft Windows Server that allows for the creation and management of virtualized computing environments. With this certification, the E-Business Suite is now supported on the above Windows virtualized guest operating systems in a similar way to non-virtualized Windows. References Note 761567.1 - Oracle E-Business Suite Installation and Upgrade Notes Release 12 (12.1.1) for Microsoft Windows Server (32-bit) Note 1188535.1 - Migrating Oracle E-Business Suite R12 to Microsoft Windows Server 2008 R2 Note 1563794.1 - Certified Software on Microsoft Windows Server 2012 Hyper-V Windows Server Hyper-V Overview

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  • #OOW 2012 @PARIS...talking Oracle and Clouds, and Optimized Datacenter

    - by Eric Bezille
    For those of you who want to get most out of Oracle technologies to evolve your IT to the Next Wave, I encourage you to register to the up coming Oracle Optimized Datacenter event that will take place in Paris on November 28th. You will get the opportunity to exchange with Oracle experts and customers having successfully evolve their IT by leveraging Oracle technologies. You will also get the latest news on some of the Oracle systems announcements made during OOW 2012. During this event we will make an update about Oracle and Clouds, from private to public and hybrid models. So in preparing this session, I thought it was a good start to make a status of Cloud Computing in France, and CIO requirements in particular. Starting in 2009 with the first Cloud Camp in Paris, the market has evolved, but the basics are still the same : think hybrid. From Traditional IT to Clouds One size doesn't fit all, and for big companies having already an IT in place, there will be parts eligible to external (public) cloud, and parts that would be required to stay inside the firewalls, so ability to integrate both side is key.  None the less, one of the major impact of Cloud Computing trend on IT, reported by Forrester, is the pressure it makes on CIO to evolve towards the same model that end-users are now used to in their day to day life, where self-service and flexibility are paramount. This is what is driving IT to transform itself toward "a Global Service Provider", or for some as "IT "is" the Business" (see : Gartner Identifies Four Futures for IT and CIO), and for both models toward a Private Cloud Service Provider. In this journey, there is still a big difference between most of existing external Cloud and a firm IT : the number of applications that a CIO has to manage. Most cloud providers today are overly specialized, but at the end of the day, there are really few business processes that rely on only one application. So CIOs has to combine everything together external and internal. And for the internal parts that they will have to make them evolve to a Private Cloud, the scope can be very large. This will often require CIOs to evolve from their traditional approach to more disruptive ones, the time has come to introduce new standards and processes, if they want to succeed. So let's have a look at the different Cloud models, what type of users they are addressing, what value they bring and most importantly what needs to be done by the  Cloud Provider, and what is left over to the user. IaaS, PaaS, SaaS : what's provided and what needs to be done First of all the Cloud Provider will have to provide all the infrastructure needed to deliver the service. And the more value IT will want to provide, the more IT will have to deliver and integrate : from disks to applications. As we can see in the above picture, providing pure IaaS, left a lot to cover for the end-user, that’s why the end-user targeted by this Cloud Service is IT people. If you want to bring more value to developers, you need to provide to them a development platform ready to use, which is what PaaS is standing for, by providing not only the processors power, storage and OS, but also the Database and Middleware platform. SaaS being the last mile of the Cloud, providing an application ready to use by business users, the remaining part for the end-users being configuring and specifying the application for their specific usage. In addition to that, there are common challenges encompassing all type of Cloud Services : Security : covering all aspect, not only of users management but also data flows and data privacy Charge back : measuring what is used and by whom Application management : providing capabilities not only to deploy, but also to upgrade, from OS for IaaS, Database, and Middleware for PaaS, to a full Business Application for SaaS. Scalability : ability to evolve ALL the components of the Cloud Provider stack as needed Availability : ability to cover “always on” requirements Efficiency : providing a infrastructure that leverage shared resources in an efficient way and still comply to SLA (performances, availability, scalability, and ability to evolve) Automation : providing the orchestration of ALL the components in all service life-cycle (deployment, growth & shrink (elasticity), upgrades,...) Management : providing monitoring, configuring and self-service up to the end-users Oracle Strategy and Clouds For CIOs to succeed in their Private Cloud implementation, means that they encompass all those aspects for each component life-cycle that they selected to build their Cloud. That’s where a multi-vendors layered approach comes short in terms of efficiency. That’s the reason why Oracle focus on taking care of all those aspects directly at Engineering level, to truly provide efficient Cloud Services solutions for IaaS, PaaS and SaaS. We are going as far as embedding software functions in hardware (storage, processor level,...) to ensure the best SLA with the highest efficiency. The beauty of it, as we rely on standards, is that the Oracle components that you are running today in-house, are exactly the same that we are using to build Clouds, bringing you flexibility, reversibility and fast path to adoption. With Oracle Engineered Systems (Exadata, Exalogic & SPARC SuperCluster, more specifically, when talking about Cloud), we are delivering all those components hardware and software already engineered together at Oracle factory, with a single pane of glace for the management of ALL the components through Oracle Enterprise Manager, and with high-availability, scalability and ability to evolve by design. To give you a feeling of what does that bring in terms just of implementation project timeline, for example with Oracle SPARC SuperCluster, we have a consistent track of record to have the system plug into existing Datacenter and ready in a week. This includes Oracle Database, OS, virtualization, Database Storage (Exadata Storage Cells in this case), Application Storage, and all network configuration. This strategy enable CIOs to very quickly build Cloud Services, taking out not only the complexity of integrating everything together but also taking out the automation and evolution complexity and cost. I invite you to discuss all those aspect in regards of your particular context face2face on November 28th.

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  • Microsoft : "Nous allons renouveler l'intégralité de notre gamme serveurs", entretien autour de SQL Server 2012

    [IMG]http://ftp-developpez.com/gordon-fowler/SQLServer2012.png[/IMG] Microsoft se montre très ambitieux pour SQL Server 2012 et sa Division Serveur et Plateforme. TCO très agressifs, simplification des licences, Big Data, BI, Clouds Privés, intégration de Hadoop, démocratisation de Azure, les sujets à aborder ne manquaient pas. Entretien avec Jérôme Trédan, Directeur des Produits Serveurs et Plateformes de Cloud Computing, Microsoft FranceDeveloppez.com : Pouvez-vous nous resituer la Division Serveur et Plateforme de Microsoft en quelques chiffres ? Jérôme Trédan : Cette branche de Microsoft regroupe trois grandes familles de produits : les technologies pour la réalisation de Cloud privés ...

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  • You Couldn't Write it - Houston we have a problem!

    - by GrumpyOldDBA
    Note identities changed to protect the innocent (sic ). In a datacentre I have an iscsi san which provides storage for a SQL Cluster. It developed a fault and required replacement of a few parts, all hot swappable. Although we had suppport/warranty this did not include onsite so we arranged to have the parts delivered. The datacentre did not want to carry out the work so we had to arrange for the manufacturer to send an engineer. Times were arranged and interested/concerned parties put on standby...(read more)

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  • Is Data Science “Science”?

    - by BuckWoody
    I hold the term “science” in very high esteem. I grew up on the Space Coast in Florida, and eventually worked at the Kennedy Space Center, surrounded by very intelligent people who worked in various scientific fields. Recently a new term has entered the computing dialog – “Data Scientist”. Since it’s not a standard term, it has a lot of definitions, and in fact has been disputed as a correct term. After all, the reasoning goes, if there’s no such thing as “Data Science” then how can there be a Data Scientist? This argument has been made before, albeit with a different term – “Computer Science”. In Peter Denning’s excellent article “Is Computer Science Science” (April  2005/Vol. 48, No. 4 COMMUNICATIONS OF THE ACM) there are many points that separate “science” from “engineering” and even “art”.  I won’t repeat the content of that article here (I recommend you read it on your own) but will leverage the points he makes there. Definition of Science To ask the question “is data science ‘science’” then we need to start with a definition of terms. Various references put the definition into the same basic areas: Study of the physical world Systematic and/or disciplined study of a subject area ...and then they include the things studied, the bodies of knowledge and so on. The word itself comes from Latin, and means merely “to know” or “to study to know”. Greek divides knowledge further into “truth” (episteme), and practical use or effects (tekhne). Normally computing falls into the second realm. Definition of Data Science And now a more controversial definition: Data Science. This term is so new and perhaps so niche that the major dictionaries haven’t yet picked it up (my OED reference is older – can’t afford to pop for the online registration at present). Researching the term's general use I created an amalgam of the definitions this way: “Studying and applying mathematical and other techniques to derive information from complex data sets.” Using this definition, data science certainly seems to be science - it's learning about and studying some object or area using systematic methods. But implicit within the definition is the word “application”, which makes the process more akin to engineering or even technology than science. In fact, I find that using these techniques – and data itself – part of science, not science itself. I leave out the concept of studying data patterns or algorithms as part of this discipline. That is actually a domain I see within research, mathematics or computer science. That of course is a type of science, but does not seek for practical applications. As part of the argument against calling it “Data Science”, some point to the scientific method of creating a hypothesis, testing with controls, testing results against the hypothesis, and documenting for repeatability.  These are not steps that we often take in working with data. We normally start with a question, and fit patterns and algorithms to predict outcomes and find correlations. In this way Data Science is more akin to statistics (and in fact makes heavy use of them) in the process rather than starting with an assumption and following on with it. So, is Data Science “Science”? I’m uncertain – and I’m uncertain it matters. Even if we are facing rampant “title inflation” these days (does anyone introduce themselves as a secretary or supervisor anymore?) I can tolerate the term at least from the intent that we use data to study problems across a wide spectrum, rather than restricting it to a single domain. And I also understand those who have worked hard to achieve the very honorable title of “scientist” who have issues with those who borrow the term without asking. What do you think? Science, or not? Does it matter?

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  • io Exception error in wordcount example

    - by Anitha
    I have installed Hadoop 1.0.3 in Ubuntu 12.04 version (64bit) based on michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/ . I am trying to run a mapreduce job using the wordcount example. Running the command hduser@ubuntu: $/usr/local/hadoop/bin/hadoop jar hadoop-examples-1.0.3.jar wordcount /user/hduser/gutenberg /user/hduser/gutenberg-output gives the following error: Warning: $HADOOP_HOME is deprecated. Exception in thread "main" java.io.IOException: Error opening job jar: hadoop-examples-1.0.3.jar at org.apache.hadoop.util.RunJar.main(RunJar.java:90) Caused by: java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:131) at java.util.jar.JarFile.<init>(JarFile.java:150) at java.util.jar.JarFile.<init>(JarFile.java:87) at org.apache.hadoop.util.RunJar.main(RunJar.java:88) Thanks in advance.

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