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  • Esper generating episodes

    - by Jasonojh
    I would like to use Esper to generate episodes of events. I am trying to detect the changes in robot movement during each time period and was wondering what would be the best way of implementation. The rules for generation of episodes from the events would be If the new event time(eg. 7sec, robot A) of a robot is more than 3 sec than the latest event(eg. 3 sec, robot A) of the same robot, the new event belongs to a new episode. Each episode should represent only one robot (eg. 2sec, robotA and 3sec, robotB should output 2 episodes) Input data: Event Time Robot Position 1 1 A 0 2 2 A 1 3 6 A 2 Output data should be: Array[0]={Event 1,Event 2} Array[1]={Event 3} //more than 3 sec Input data: Event Time Robot Position 1 1 A 0 2 2 A 1 3 4 B 0 4 6 A 2 Output data should be: Array[0]={Event 1,Event 2} Array[1]={Event 3} //different robot Array[2]={Event 4} Please help provide suggestions. I have tried using mulitple listeners, one for each robot, to create episodes and it works but I am trying to use a single EPL statement to do it. I have tried win:time_accum(3sec) group by robot but the second example output: Array[0]={Event 1,Event 2, Event 4} Array[1]={Event 3} as the time window is shifted everytime an event comes in, the system still thinks that event 4 is less than 3 sec due to event 3. how do I create a unique time window for each robot? Thank you for your suggestions and any help is greatly appreciated.

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  • ETL , Esper or Drools?

    - by geoaxis
    Hello, The question environment relates to JavaEE, Spring I am developing a system which can start and stop arbitrary TCP (or other) listeners for incoming messages. There could be a need to authenticate these messages. These messages need to be parsed and stored in some other entities. These entities model which fields they store. So for example if I have property1 that can have two text fields FillLevel1 and FillLevel2, I could receive messages on TCP which have both fill levels specified in text as F1=100;F2=90 Later I could add another filed say FillLevel3 when I start receiving messages F1=xx;F2=xx;F3=xx. But this is a conscious decision on the part of system modeler. My question is what do you think is better to use for parsing and storing the message. ETL (using Pantaho, which is used in other system) where you store the raw message and use task executor to consume them one by one and store the transformed messages as per your rules. One could use Espr or Drools to do the same thing , storing rules and executing them with timer, but I am not sure how dynamic you could get with making rules (they have to be made by end user in a running system and preferably in most user friendly way, ie no scripts or code, only GUI) The end user should be capable of changing the parse rules. It is also possible that end user might want to change the archived data as well (for example in the above example if a new value of FillLevel is added, one would like to put a FillLevel=-99 in the previous values to make the data consistent). Please ask for explanations, I have the feeling that I need to revise this question a bit. Thanks

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  • Which CEP product to start with?

    - by Andreas
    Hi, I want to learn more on how to build CEP based applications. So I looked around and found several products (overview found here: http://rulecore.com/CEPblog/?page_id=47). But as there are quite a few at the moment, I don't know which is the best to start with. And overall I just would consider the one available for free. The rest is a bit to expensive for just private use ;) Esper is for free, but without Esper studio it seems quite tedious to develop a cep app. Streambase offers a free trial, but I couldn't find out how long you can use this (if only for a month, no that helpful for longer research). Oracle CEP suite seems quite complete, but in the cep scene - as far as I can see - it is the least recognized compared to Esper or Streambase. So do you have any hints on what is the best way to start with cep development? Is it worth to spent time on working through the oracle documenation or is it better to start with Esper or Streambase? Cheers, Andreas

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  • Big Data: Size isn’t everything

    - by Simon Elliston Ball
    Big Data has a big problem; it’s the word “Big”. These days, a quick Google search will uncover terabytes of negative opinion about the futility of relying on huge volumes of data to produce magical, meaningful insight. There are also many clichéd but correct assertions about the difficulties of correlation versus causation, in massive data sets. In reading some of these pieces, I begin to understand how climatologists must feel when people complain ironically about “global warming” during snowfall. Big Data has a name problem. There is a lot more to it than size. Shape, Speed, and…err…Veracity are also key elements (now I understand why Gartner and the gang went with V’s instead of S’s). The need to handle data of different shapes (Variety) is not new. Data developers have always had to mold strange-shaped data into our reporting systems, integrating with semi-structured sources, and even straying into full-text searching. However, what we lacked was an easy way to add semi-structured and unstructured data to our arsenal. New “Big Data” tools such as MongoDB, and other NoSQL (Not Only SQL) databases, or a graph database like Neo4J, fill this gap. Still, to many, they simply introduce noise to the clean signal that is their sensibly normalized data structures. What about speed (Velocity)? It’s not just high frequency trading that generates data faster than a single system can handle. Many other applications need to make trade-offs that traditional databases won’t, in order to cope with high data insert speeds, or to extract quickly the required information from data streams. Unfortunately, many people equate Big Data with the Hadoop platform, whose batch driven queries and job processing queues have little to do with “velocity”. StreamInsight, Esper and Tibco BusinessEvents are examples of Big Data tools designed to handle high-velocity data streams. Again, the name doesn’t do the discipline of Big Data any favors. Ultimately, though, does analyzing fast moving data produce insights as useful as the ones we get through a more considered approach, enabled by traditional BI? Finally, we have Veracity and Value. In many ways, these additions to the classic Volume, Velocity and Variety trio acknowledge the criticism that without high-quality data and genuinely valuable outputs then data, big or otherwise, is worthless. As a discipline, Big Data has recognized this, and data quality and cleaning tools are starting to appear to support it. Rather than simply decrying the irrelevance of Volume, we need as a profession to focus how to improve Veracity and Value. Perhaps we should just declare the ‘Big’ silent, embrace these new data tools and help develop better practices for their use, just as we did the good old RDBMS? What does Big Data mean to you? Which V gives your business the most pain, or the most value? Do you see these new tools as a useful addition to the BI toolbox, or are they just enabling a dangerous trend to find ghosts in the noise?

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  • CodePlex Daily Summary for Saturday, June 30, 2012

    CodePlex Daily Summary for Saturday, June 30, 2012Popular ReleasesDotChess: DotChess v0.5.0: v0.5.0 Rearchitected the domain. Updated solution to Framework 4. Initiated test project. Implemented exceptions for errors. Improved coding style. Fixed minor bugs. Fixed setup shortcuts to use executable's icon. v0.4.0 Converted to Visual Studio 2010. Improved architecture.Magelia WebStore Open-source Ecommerce software: Magelia WebStore 2.0: User Right Licensing ContentType version 2.0.267.1EPPlus-Create advanced Excel 2007 spreadsheets on the server: EPPlus 3.1 Beta: EPPlus-Create advanced Excel 2010 spreadsheets This version contain version contains two new major features - VBA and conditional formatting New featuresVBACreate,read and write a VBA project from scratch or in a template. Add and modify modules and classes. Read and write code to documents(workbook and worksheets), modules and classes. VBA protection Code signing And more... Conditional FormattingApply conditional formatting on any range of cells. Choose between more than 40 diff...Supporting Guidance and Whitepapers: v1 - Supporting Media: Welcome to the Release Candidate (RC) release of the ALM Rangers Readiness supporting edia As this is a RC release and the quality bar for the final Release has not been achieved, we value your candid feedback and recommend that you do not use or deploy these RC artifacts in a production environment. Quality-Bar Details All critical bugs have been resolved Known Issues / Bugs Practical Ruck training workshop not yet includedDesigning Windows 8 Applications with C# and XAML: Chapters 1 - 7 Release Preview: Source code for all examples from Chapters 1 - 7 for the Release PreviewHyperStat.NET: Public Alpha Release: Ubuntu Installation Instructionssudo add-apt-repository ppa:xexenon/hyperstat.net sudo apt-get update sudo apt-get install hyperstatMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.57: Fix for issue #18284: evaluating literal expressions in the pattern c1 * (x / c2) where c1/c2 is an integer value (as opposed to c2/c1 being the integer) caused the expression to be destroyed.Visual Studio ALM Quick Reference Guidance: v2 - Visual Studio 2010 (Japanese): Rex Tang (?? ??) http://blogs.msdn.com/b/willy-peter_schaub/archive/2011/12/08/introducing-the-visual-studio-alm-rangers-rex-tang.aspx, Takaho Yamaguchi (?? ??), Masashi Fujiwara (?? ??), localized and reviewed the Quick Reference Guidance for the Japanese communities, based on http://vsarquickguide.codeplex.com/releases/view/52402. The Japanese guidance is available in AllGuides and Everything packages. The AllGuides package contains guidances in PDF file format, while the Everything packag...Visual Studio Team Foundation Server Branching and Merging Guide: v1 - Visual Studio 2010 (Japanese): Rex Tang (?? ??) http://blogs.msdn.com/b/willy-peter_schaub/archive/2011/12/08/introducing-the-visual-studio-alm-rangers-rex-tang.aspx, Takaho Yamaguchi (?? ??), Hirokazu Higashino (?? ??), localized and reviewed the Branching Guidance for the Japanese communities, based on http://vsarbranchingguide.codeplex.com/releases/view/38849. The Japanese guidance is available in AllGuides and Everything packages. The AllGuides package contains guidances in PDF file format, while the Everything packag...SQL Server FineBuild: Version 3.1.0: Top SQL Server FineBuild Version 3.1.0This is the stable version of FineBuild for SQL Server 2012, 2008 R2, 2008 and 2005 Documentation FineBuild Wiki containing details of the FineBuild process Known Issues Limitations with this release FineBuild V3.1.0 Release Contents List of changes included in this release Please DonateFineBuild is free, but please donate what you think FineBuild is worth as everything goes to charity. Tearfund is one of the UK's leading relief and de...EasySL: RapidSL V2: Rewrite RapidSL UI Framework, Using Silverlight 5.0 EF4.1 Code First Ria Service SP2 + Lastest Silverlight Toolkit.SOLID by example: All examples: All solid examplesSiteMap Editor for Microsoft Dynamics CRM 2011: SiteMap Editor (1.1.1726.406): Use of new version of connection controls for a full support of OSDP authentication mechanism for CRM Online.Umbraco CMS: Umbraco CMS 5.2: Development on Umbraco v5 discontinued After much discussion and consultation with leaders from the Umbraco community it was decided that work on the v5 branch would be discontinued with efforts being refocused on the stable and feature rich v4 branch. For full details as to why this decision was made please watch the CodeGarden 12 Keynote. What about all that hard work?!?? We are not binning everything and it does not mean that all work done on 5 is lost! we are taking all of the best and m...CodeGenerate: CodeGenerate Alpha: The Project can auto generate C# code. Include BLL Layer、Domain Layer、IDAL Layer、DAL Layer. Support SqlServer And Oracle This is a alpha program,but which can run and generate code. Generate database table info into MS WordXDA ROM HUB: XDA ROM HUB v0.9: Kernel listing added -- Thanks to iONEx Added scripts installer button. Added "Nandroid On The Go" -- Perform a Nandroid backup without a PC! Added official Android app!ExtAspNet: ExtAspNet v3.1.8.2: +2012-06-24 v3.1.8 +????Grid???????(???????ExpandUnusedSpace????????)(??)。 -????MinColumnWidth(??????)。 -????AutoExpandColumn,???????????????(ColumnID)(?????ForceFitFirstTime??ForceFitAllTime,??????)。 -????AutoExpandColumnMax?AutoExpandColumnMin。 -????ForceFitFirstTime,????????????,??????????(????????????)。 -????ForceFitAllTime,????????????,??????????(??????????????????)。 -????VerticalScrollWidth,????????(??????????,0?????????????)。 -????grid/grid_forcefit.aspx。 -???????????En...AJAX Control Toolkit: June 2012 Release: AJAX Control Toolkit Release Notes - June 2012 Release Version 60623June 2012 release of the AJAX Control Toolkit. AJAX Control Toolkit .NET 4 – AJAX Control Toolkit for .NET 4 and sample site (Recommended). AJAX Control Toolkit .NET 3.5 – AJAX Control Toolkit for .NET 3.5 and sample site (Recommended). Notes: - The current version of the AJAX Control Toolkit is not compatible with ASP.NET 2.0. The latest version that is compatible with ASP.NET 2.0 can be found here: 11121. - Pages using ...Cloud Media SharePoint Extension: Cloud Media SharePoint Extension: Version 0.1 Enables adding YouTube and Vimeo Video to a asset libraryComputation Visualizer: V 1.1d: ????????? ??????????, ??????????? ?? ??????New ProjectsCEP: CEP With Esper on Android Colorific: Colorific is a Visual Studio extension which enhances the syntax coloring support for C#.Dan's Utility Libraries: Dan's Utility Library is a collection of reusable code that I've written or found throughout my programming career.Delete Inactive TS Ports: The presence of Inactive TS Ports causes systems to hang or become sluggish and unresponsive. Printer redirection also suffers when there are a lot of Inactive TS Ports presents in the machine.FastNet: Extremely efficient WCF client and server for exchanging binary messages.FoodBank: Track what you eat with FoodBankGUIMalort: Malort is a raytracer developed in C++ and using Qt for the user interface. For now, it implements basic primitives, lights sources, global ambient light. Future improvements are about textures and procedural textures, bump mapping and animations.ImapClient for .NET: This ImapClient was created to incorporate Imap Mailbox Syncing with following features. This client is not full featured client, but it provides sufficient features to sync remote mail box easily and it is only free library which supports BODYSTRUCTURE correctly.iTunesContorol: iTunes??????????????、iTunes????????????????????????。JavascriptHelper - Managing JS files for ASP.NET MVC: JavascriptHelper is a MVC component to manage Javascript usage handling dependencies, CSS files and file placement.Jeanfish.com: JeanFish.comjFadeList: JQuery List Fade Plugin v1.0 betaLogwiz - Automate the collection of Performance monitor logs using logman.exe: This tool is used to automate the process of collecting Performance monitoring data using the logman.exe on Windows Vista/Windows 7/Windows 2008 and Windows 2008 R2MtelAnalyzer: Mtel Analyzator analyze the transactions that your emplyees were made and find the best plan for lower pricing.patterns practices - HiloJS: Dev a Windows Metro style app using JavaScript: Hilo guides you though the development of a Windows Metro style app. The Hilo sample is a photo viewing app using HTML 5, CSS3 and JavaScript.PHP Database Management: A PHP library to facilitate MySql database managementpintos: pintosPlay N Hunt: Scanner for the website eternal-apocalypse.frPokemon Text Tools: Pokemon Stars SP ??ProjectEulerIssues: Collection of solved/processing tasks from ProkectEuler.netScheme.Net: A R5RS Scheme interpreter/compiler for the .NET runtime.Speed up Printer migration using PrintBrm and it's configuration files: This tool is used to create the BrmConfig.XML file that can be used for quickly restoring all the print queues using the Generic / Text Only driver when migrating from a 32bit to a 64bit server.SvnLightClient: ???? svn server url, username, password ??,???????svn??????。 ??????project checkout??????。(??)WikiQuizz: It's the first real game on Wikipedia!xlsdiff: Show changes between Excel filesXNATetris: Il gioco è un clone in XNA del classico Tetris. Permette la modalità single player con aumento della velocità di gioco in relazione al livello raggiunto.Xperf123 - Xperf perf data collection made as easy as 1-2-3: This tool is used to automate the process of collecting xperf traces easy without the user worring about the various settings and configuration options. Just select the kind of trace you want and this tool does the rest for you.

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