[Topic-models] Topic-models Digest, Vol 119, Issue 17

Denis Parra denisparra at gmail.com
Tue Jun 28 12:18:22 EDT 2016


Hi Flavio,

I suggest you checking our tutorial, in page 9 there's an example where
using -- alpha=0.01
gave good results

http://socialcomputing.ing.puc.cl/uploads/DynamicTopicModellingTutorial.pdf

Cheers,

Denis

El El mar, 28 de jun de 2016 a las 12:00, <
topic-models-request at lists.cs.princeton.edu> escribió:

> Send Topic-models mailing list submissions to
>         topic-models at lists.cs.princeton.edu
>
> To subscribe or unsubscribe via the World Wide Web, visit
>         https://lists.cs.princeton.edu/mailman/listinfo/topic-models
> or, via email, send a message with subject or body 'help' to
>         topic-models-request at lists.cs.princeton.edu
>
> You can reach the person managing the list at
>         topic-models-owner at lists.cs.princeton.edu
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Topic-models digest..."
> Today's Topics:
>
>    1. Hyperparameters for DTM (Flavio Altinier Maximiano DaSilva)
>
>
>
> ---------- Forwarded message ----------
> From: Flavio Altinier Maximiano DaSilva <fa269 at cornell.edu>
> To: <topic-models at lists.cs.princeton.edu>
> Cc:
> Date: Mon, 27 Jun 2016 12:05:02 -0700
> Subject: [Topic-models] Hyperparameters for DTM
> Good morning,
>
> I am trying to use the dtm code here (
> https://code.google.com/archive/p/princeton-statistical-learning/downloads)
> to study the evolution of topics on a dataset.
>
> I am observing however that top-words on topics are almost not changing at
> all through the years, and want to loosen the constraints on last-year
> dependency. By checking the original paper (D. Blei and J. Lafferty.
> Dynamic topic models. In Proceedings of the 23rd International Conference
> on Machine Learning, 2006 [PDF
> <https://www.cs.princeton.edu/~blei/papers/BleiLafferty2006a.pdf>]), I
> believe it could be done by increasing sigma -- as seen in sections 2 and 3.
>
> I tried checking the flags in the documentation but none of the sigmas
> there are the flag I'm looking for. Which is the flag I should adjust? Or
> is it hard-coded somewhere on the code?
>
> Thank you,
> Flavio.
> _______________________________________________
> Topic-models mailing list
> Topic-models at lists.cs.princeton.edu
> https://lists.cs.princeton.edu/mailman/listinfo/topic-models
>
-- 
Denis Parra
Assistant Professor
Computer Science Department
PUC Chile
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.cs.princeton.edu/pipermail/topic-models/attachments/20160628/7b05cb77/attachment.html>


More information about the Topic-models mailing list