The “Rete Wall” is a commonly used industry term, referring to potential performance limits of a standard Rete algorithm implementaiton. I’ve been googling and I cannot see this term used in google scholar at all, and the earliest reference i could find to this term was a JRules white paper, in 2006. So I’m wonderingRead more →
In June we blogged about a new internal state machine to manage the interaction of User, Timer and Engine threads. We’ve now done another big internal clean up of this code, to make it easier to read and easier to understand. As previous mentioned all actions (insert, update, delete etc) are now placed into aRead more →
Back in august I wrote a blog providing an update on our work around OOPath, it included links to unit tests a 26min presentation on the subject.http://blog.athico.com/2015/08/ruleml2015-hybrid-reactive-relational.html This work provides a way to work with your Java models in Drools without having to flatten them, providing full reactivity over that graph of pojos. It alsoRead more →
Michael Anstis and myself have been working on the Lienzo tool, a GWT based HTML Canvas library for Scene Graphs. Michael has been working on lienzo-grid, as the basis for our next generation decision tables – so it can support multiple interconnected tables on a page.http://blog.athico.com/2015/04/cell-merging-collapsing-and-sorting.htmlhttp://blog.athico.com/2015/03/zooming-and-panning-between-multiple.htmlhttps://www.youtube.com/channel/UCRjyzfzlWSPafTe4TDb5I4Q I’m working with Lienzo so that it can formRead more →
Here are the slides and presentation for my RuleML submission “Building a Hybrid Reactive Rule Engine for Relational and Graph Reasoning”. In this we propose a syntax extensions inspired by XPath, called OOPath, for Drools along with engine extensions and domain integration for reactive pojo graphs. We are hoping this new syntax and approach willRead more →
We’ve rewritten the internal parts of our code that deal with multi-threading to remove a large number of synchronisation points and to improve stability and predictability. We believe that what we have done is now far more robust for the interaction of the User, Timer and Engine threads. Our initial benchmarking is showing that thisRead more →
We are looking to try and organise a team meeting in Barcelona, towards the end of this year. We have limited to no budget for meeting space 🙁 So I thought I’d see if anyone out there would like to volunteer this space – in return you’ll have all the core Drools and jBPM developersRead more →
Bob has been working on improving our Drools & jBPM Eclipse wizards. The user no longer needs to create runtimes. They can now be created automatically on the fly by the new project wizard. The project wizard will now list examples from the github repository and allow them to be selected and dowloaded as partRead more →
This just paper came up on my google alerts, you can download the full text from ResearchGate.“A Comparative Study of Correlation Engines for Security Event Management” It’s an academic paper, published in the peer reviewed journal.“10th International Conference on Cyber Warfare and Security (ICCWS-2015)” Th paper is evaluating the correlation performance for large rule setsRead more →
Last month I showed you videos for our proof of concept work, using Lienzo, to see how viable HTML5 canvas is for multiple large interconnected decision tables. Michael’s made more progress adding cell merging and collapsing as well are sorting columns. All still working on truly massive interconnected tables. We plan to make the genericRead more →
