Recent Posts

1

General Discussion / Excel, Dates, and Discretization

« Last post by MarcoGV on May 03, 2022, 22:15:24  »

I recently ran into a problem that I do not know how to solve in a simple way.  It turns out that Excel automatically turns an entry like 5 - 10 into a date; in this case, May 10.  (I am in the U.S.)  (See https://support.microsoft.com/en-us/office/stop-automatically-changing-numbers-to-dates-452bd2db-cc96-47d1-81e4-72cec11c4ed8)  After discretization of a data set where one of the intervals is 5 - 10, the .cvs file built by Hugin has May 10 entries wherever 5 -10 should be.  Attempts to convert May 10 to 5 - 10 by formatting cells fail, because 5 - 10 is turned into a number representing the number of days from the "beginning of time," and trying to convert that number back to 5 - 10 results in May 10 again.  Does anyone have any suggestions to solve this problem?

2

HUGIN GUI Discussion / Re: A More General Zoom Feature

« Last post by MarcoGV on April 22, 2022, 17:28:14  »

The sizing of features in Hugin 9.1 is much better, at least in Windows.  Thank you for this improvement, which makes using Hugin more pleasant.

3

General Discussion / Re: cross-validation

« Last post by MarcoGV on April 21, 2022, 16:59:44  »

Are there any updates on the possibility of a cross-validation tool in Hugin?  I would find it very useful to complement the existing classifier performance tool.

4

General Discussion / Linking the interval values of the raster files with the nodes

« Last post by priyanka on March 07, 2022, 18:03:00  »

Hello Developers,

I am a beginner at Hugin software and trying to learn the software using HUGIN LITE. I wish to work with the raster files and for them, I am trying to build a Bayesian network. My problem is when I select the node type to interval and enter the values for the raster file (e.g. Indices, which has negative and positive values) manually in the table, it does not accept the values. I am not able to find any option where I can link the corresponding tiff file to the node. On youtube, the tutorial to build the model and attach or link the rasters to the node has not been explained but only to enter the values manually in the table of node has been demonstrated.

Please help me in this initial phase so that I can learn the model and further apply it in my research work.

Thanks in advance!

5

HUGIN GUI Discussion / Re: A More General Zoom Feature

« Last post by Anders L Madsen on September 04, 2021, 16:23:14  »

Marco,

We are working on a new type of monitors that will support better zoom functionality.

best regards
Anders

6

HUGIN GUI Discussion / Re: Information Entropy Minmization Discretization

« Last post by Anders L Madsen on September 04, 2021, 16:21:57  »

Hi Marco,

The IEM discretization method is based on the algorithm of the following paper:

U. M. Fayyad and K. B. Irani. 'Multi-Interval discretization of continuous valued attributes'. In Proceedings of the Thireenth International Joint Conference on Artificial Intelligence, pages 1022-1027, 1993.

If you have ideas for other (or better) discretization algorithms to implement, then please let us know.

Best regards
Anders

7

HUGIN GUI Discussion / Information Entropy Minmization Discretization

« Last post by MarcoGV on August 30, 2021, 20:18:13  »

Greetings!  Could someone please explain in more detail that in the manual what information entropy minimization discretization does? I tried it with a file with 10000 cases generated from the anginaContinuous network in Section 3.3.8 of Jensen and Nielsen's book, discretizing the Therm variable with the Angina variable as target.  It gave reasonable results, with three intervals.  Maybe someone could look at that example and use it to explain which entropy is minimized.

8

General Discussion / Supported image formats

« Last post by Late_Junction on June 28, 2021, 11:20:16  »

My Linux install of Hugin 2020 does not find the required image data in the .RAF files from my Fujifilm X-T30, but is satisfied if I export those files from darktable in 8 bit TIF form. I am correct in assuming that Hugin doesn't support raw files - or have i missed something from my installation? (I failed to find any info. on supported image file formats in the Help wiki).

9

HUGIN GUI Discussion / Re: Plate Models

« Last post by Anders L Madsen on March 30, 2021, 17:45:02  »

Hi Marco,

You can try to use the combined OOBN and DBN facility in HUGIN. Maybe it is sufficient for your needs? In the DBN you can define the number of time steps in the time window.

We have a YouTube tutorial on DBNs in HUGIN: https://www.youtube.com/watch?v=Go7O6-UfFWk

Hope this is useful
Best regards
Anders
 

10

HUGIN GUI Discussion / Plate Models

« Last post by MarcoGV on March 22, 2021, 21:55:17  »

Greetings to all.  Is there a way to specify plate models directly in Hugin?  Or, maybe even just repetitive models such as the one in Figure 3.46 in Jensen and Nielsen's 2007 book, _Bayesian Networks and Decision Graphs_, 2nd ed.?