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Decision support system A Decision Support System (DSS) is a computer-based information system that supports business or organizational decision-making activities. DSSs serve the management, operations, and planning levels of an organization (usually mid and higher management) and help to make decisions, which may be rapidly changing and not easily specified in advance (Unstructured and Semi-Structured decision problems). Decision support systems can be either fully computerized, human or a combination of both. While academics have perceived DSS as a tool to support decision making process, DSS users see DSS as a tool to facilitate organizational processes.[1] Some authors have extended the definition of DSS to include any system that might support decision making.[2] Sprague (1980) defines DSS by its characteristics: DSSs include knowledge-based systems. Typical information that a decision support application might gather and present includes: History[edit] Taxonomies[edit] Components[edit] Classification[edit]
Après les serveurs, IBM se séparerait de ses puces ? Au mois de janvier, on apprenait qu'IBM avait cédé son département serveurs x86 à Lenovo pour 2,3 milliards de dollars afin de se recentrer sur la nouvelle ligne de l'entreprise qui mise davantage sur les services et les logiciels. Selon le Financial Times, Big Blue pourrait chercher à se séparer de sa branche semi-conducteurs qui a pourtant contribué à sa renommée. On pense notamment à l'architecture Power utilisée dans les PowerPC des Mac Pro, le Cell de la PS3 ou encore le Power7 qui prend place au sein du supercalculateur Watson. Virginia Rometty alias Ginni (ouais on se permet depuis qu'on l'a faite monter dans la BX) semble prête à tout pour continuer la stratégie amorcée depuis plusieurs années par IBM. La branche semi-conducteurs et hardware du géant bleu a péniblement atteint 11% des bénéfices l'année dernière. Toutefois, il serait étonnant que l'entreprise se sépare totalement de ses processeurs qui sont encore présents dans de nombreux domaines.
the Best of the Web for Windows 7 Users - November 2010 | Windows 7 Tutorials This month’s roundup of the Best of the Web for Windows 7 Users includes a very diverse collection of links. We have some really good tips to share from all over the Internet, so check them out. A look back at the year since Windows 7 was released - On October 22nd, Windows 7 celebrated its first anniversary. "Hooray!" How to Create a Public Link For a Facebook Photo Album - We know many of our readers are also regular Facebook users. BitTorrent for Beginners: How To Get Started Downloading Torrents - How-To Geek is again in our monthly roundup with a great article. How To Remove Unwanted Crapware From Your Brand New Windows 7 System - We are all tired of having crapware being pre-installed on our new computers and, unfortunely this trend is not going to stop soon. The Zombie Network: Beware 'Free Public WiFi' - This great article starts by saying the following: It's in your airports, your coffee shops and your libraries: "Free Public WiFi." I hope you enjoyed this month’s roundup.
Expert system An expert system is divided into two sub-systems: the inference engine and the knowledge base. The knowledge base represents facts and rules. The inference engine applies the rules to the known facts to deduce new facts. Inference engines can also include explanation and debugging capabilities.[10] History[edit] Edward Feigenbaum in a 1977 paper said that the key insight of early expert systems was that "intelligent systems derive their power from the knowledge they possess rather than from the specific formalisms and inference schemes they use" (as paraphrased by Hayes-Roth, et al.) Expert systems were introduced by the Stanford Heuristic Programming Project led by Feigenbaum, who is sometimes referred to as the "father of expert systems". In addition to Feigenbaum key early contributors were Bruce Buchanan, Edward Shortliffe, Randall Davis, William vanMelle, and Carli Scott. In the 1980s, expert systems proliferated. Software architecture[edit] R1: Man(x) => Mortal(x) Truth Maintenance.
HP va investir 1 milliard de dollars dans le Cloud open-source Celui qui contrôle le Cloud contrôle les services. HP se réveille, certes, tard, mais l'entreprise a annoncé mercredi qu'il allait investir un milliard de dollars sur deux ans dans l'informatique dématérialisée sur Internet. Mais à la différence de la plupart de ses concurrents, HP mise sur une structure open-source. HP lance une nouvelle marque pour l'occasion, baptisée Helion, pour rassembler ses produits liés au Cloud. Ils sont basés sur l'infrastructure OpenStack cofondée par l'entreprise. Selon HP, adopter une structure open-source a plusieurs avantages: il est facile de tout migrer vers un autre fournisseur et les architectures hybrides et la customisation sont simplifiées. Cisco et IBM aussi dans la course HP avait déjà annoncé la semaine dernière une alliance pour fabriquer des serveurs optimisés pour le "cloud" avec le taïwanais Foxconn (groupe Hon Hai), le numéro un mondial de la sous-traitance électronique. P.B. avec AFP Plus d'informations sur ce sujet en vidéo
CurrPorts: Monitoring TCP/IP network connections on Windows Related Utilities Network Inventory - automated agent-free network inventory software. Network Inventory Advisor automatically discovers all network assets (Windows, Mac OS, Linux, SNMP-powered devices & more), scans them and builds network inventory reports. See Also NK2Edit - Edit, merge and fix the AutoComplete files (.NK2) of Microsoft Outlook. Description CurrPorts is network monitoring software that displays the list of all currently opened TCP/IP and UDP ports on your local computer. Download links are on the bottom of this page Search for other utilities in NirSoft Versions History Version 2.15: Added 'Run As Administrator' option (Ctrl+F11), which allows you to easily run CurrPorts as Administrator on Windows Vista/7/8/2008. System Requirements This utility works perfectly under Windows NT, Windows 2000, Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, and Windows 7. Using CurrPorts The Options Menu The 'Remote IP Country' column Using Filters Log File Custom Log Line
How Khan Academy is using Machine Learning to Assess Student Mastery | David Hu See discussion on Hacker News and Reddit. The Khan Academy is well known for its extensive library of over 2600 video lessons. It should also be known for its rapidly-growing set of now 225 exercises — outnumbering stitches on a baseball — with close to 2 million problems done each day. To determine when a student has finished a certain exercise, we award proficiency to a user who has answered at least 10 problems in a row correctly — known as a streak. Proficiency manifests itself as a gold star, a green patch on teachers’ dashboards, a requirement for some badges (eg. gain 3 proficiencies), and a bounty of “energy” points. Basically, it means we think you’ve mastered the concept and can move on in your quest to know everything. It turns out that the streak model has serious flaws. First, if we define proficiency as your chance of getting the next problem correct being above a certain threshold, then the streak becomes a poor binary classifier. In Search of a Better Model to this: . . . .