For a little while, I’ve been wanting to add support for Netica .dne files, and I’ve managed to finally land something. The support is very crude (even cruder than for GeNIe .xdsl files) and probably very flaky. There’s only support for basic networks with discrete chance nodes — no support at all for deterministic nodes, …
Continue reading ‘Make-Believe (R14): Initial Netica .dne support’ »
I finally have workers performing inference as quickly as on the main thread. This means workers now actually speed up the inference, with some substantial speed improvements as you move up to 4-8 cores. In fact, updating speed is no longer simply comparable to GeNIe, but can run quite a bit faster — OK, you …
Ack! The previous version I posted had broken the ability to enter evidence, and due to an extended period of busyness, I didn’t notice until now. (No regression tests yet — I do this for fun.) Oh well, thankfully no-one is paying attention. Given the long period since the last update, I thought I’d try …
Continue reading ‘Make-Believe (R12): Continuous Improvement’ »
I’ve added a very crude view of node CPTs — just double-click a node. (No support for deterministic nodes yet.) I expect I’ll be improving this in the next iteration. Also, moving nodes around is no longer quite so awful, with arrows updating as you move. Make-Believe (R11) Changes: Arrows update continuously as you move …
I’ve added a menu bar and it’s starting to look a bit more like an application now. I suppose that’s a good thing. Make-Believe (R10) Changes: Added menu bar Very slight performance tweak
Another small update, this time adding a control in the toolbar for the number of iterations that the likelihood weighting algorithm performs. At some point I’m going to need to clean up the toolbar. Make-Believe (R9) Changes: Control to allow changes to the number of iterations of the inference algorithm
I missed the R8 release from two weeks ago — partly because I forgot, and partly because I was busy — so here it is now. Sadly, there isn’t too much to excite in this release. The main change is the ability to do automatic layout using the dagre.js library. I haven’t tweaked the defaults …
The work on R6 allowed me to add an experimental worker thread implementation in this release. Unfortunately, I’m seeing absolutely no performance gain at this stage from it on a multi-core system, so it’s off by default. No other changes in this release. Make-Believe Changes: Added experimental worker threads (currently worse perf)
For this version, I focused on making some improvements to the backend, disentangling the .xdsl format from the internal BN representation. I also added a crude and experimental save to .xdsl function — expect it to work for basic networks only, and even then less often than not. Here it is: Make-Believe I’ve also finally …
Here’s Release 5: Make-Believe Changes: Use node labels (called ‘names’ in GeNIe) when available Allow simple movement of nodes (needs much more improvement) Added a DBN example (RS Latch.xdsl)