Palmetto: Palmetto is a quality measuring tool for topics

Palmetto is a quality measuring tool for topics based on coherence calculations.

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Logo Palmetto Palmetto is a quality measuring tool for topics

With Topic Modeling it is possible to extract topics from a collection of documents automatically and unsupervised. A disadvantage of Topic Modeling is that in most cases the created topics have to be evaluated manually by humans. Palmetto is a tool which tries to help researchers by offering different coherence calculations for a topic's top words. These coherences are based on word co-occurrences in the english wikipedia and have been proven to correlate with human ratings.

The source code is dual licensed and can be found at github. For larger experiments the program can be downloaded or the webservice can be used. More on how Palmetto could be used can be found on this wikipage.

A Dutch index for Palmetto has been created by van der Zwaan, Marx and Kamps. Thus, Palmetto can be used for Dutch as well. The index can be downloaded here.

For researchers who want to try out different coherences by themself, it might be interesting that Palmetto can be used as Java library and already contains more than 200.000 coherences that have been evaluated for the publication Exploring the Space of Topic Coherences.

The topics and human ratings used in this publication as well as the Movie and RTL-Wiki corpora can be found here. Since we did not create all datasets by ourself, please cite the creators/providers of the datasets where appropriate. You can find the reference of their publications in our paper in the section that describes the datasets.

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News

DBpedia @ SEMANTiCS 2017 ( 2017-09-04T15:25:14+02:00 by Sandra Bartsch)

2017-09-04T15:25:14+02:00 by Sandra Bartsch

We are happy to invite you to the 10th DBpedia Community Meeting which will be held in Amsterdam. During the SEMANTiCS 2017, Sep 11-14, the DBpedia Community will get together on the 14th of September for the DBpdia Day. Read more about "DBpedia @ SEMANTiCS 2017"

PRESS RELEASE: Amsterdam​ ​-​ ​this​ ​year’s​ ​hotspot​ ​​on Linked​ ​Data​ ​Strategies​ ​&​ ​Practices ( 2017-09-04T11:58:06+02:00 by Sandra Bartsch)

2017-09-04T11:58:06+02:00 by Sandra Bartsch

September 11-14, 2017 international experts from science and industry demonstrate the business value of smart data services at SEMANTiCS 2017 Experts from science and industry meet at Europe’s biggest Linked Data and Semantic Web event to present and discuss latest … Continue reading → Read more about "PRESS RELEASE: Amsterdam​ ​-​ ​this​ ​year’s​ ​hotspot​ ​​on Linked​ ​Data​ ​Strategies​ ​&​ ​Practices"

AKSW Colloquium, 01.09.2017, IDOL: Comprehensive & Complete LOD Insights ( 2017-08-28T17:24:03+02:00 Gustavo Publio)

2017-08-28T17:24:03+02:00 Gustavo Publio

At the AKSW Colloquium on Friday 1st of September, at 10:40 AM there will be a paper presentation by Gustavo Publio. Read more about "AKSW Colloquium, 01.09.2017, IDOL: Comprehensive & Complete LOD Insights"

AKSW at ISWC2017 ( 2017-07-30T05:57:57+02:00 Muhammad Saleem)

2017-07-30T05:57:57+02:00 Muhammad Saleem

We are very pleased to announce that AKSW will be presenting 2 papers at ISWC 2017, which will be held on 21-24 October in Vienna, Austria. The demo and workshops papers have to be announced. Read more about "AKSW at ISWC2017"

AKSW Colloquium, 07.07.2017, Two paper presentations concerning Link Discovery and Knowledge Base Reasoning ( 2017-07-06T21:24:36+02:00 by Daniel Obraczka)

2017-07-06T21:24:36+02:00 by Daniel Obraczka

At the AKSW Colloquium on Friday 7th of July, at 10:40 AM there will be two paper presentations concerning genetic algorithms to learn linkage rules, and differentiable learning of logical rules for knowledge base reasoning. Read more about "AKSW Colloquium, 07.07.2017, Two paper presentations concerning Link Discovery and Knowledge Base Reasoning"