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Order of documents in LDA results - Mahout - [mail # user]
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...Hi, I would like to know wich is the order of the documents in the LDA running results. For example, I know that the topic/word file is a group of IntWritable keys with VectorWritable ...
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Author: ivan obeso,
2012-07-02, 12:54
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Using TFIDF instead of TF Vectors in LDA - Mahout - [mail # user]
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...Hi all, Im using the 0.6 version of Mahout, and I have read that the LDA implementation of the algorithm in this version can work with TFIDF vectors as well as TF vectors. The problem ...
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Author: ivan obeso,
2012-06-19, 08:06
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Re: Using LDA CVB results to match a new document to topics? - Mahout - [mail # user]
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...mmmm, I have a question about that. If you use the tf*idf vectors insteed of tf vectors to feed the CVB0 LDA, you are going to generate a matrix as big as the tf vectors do, but the te...
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Author: ivan obeso,
2012-05-31, 16:02
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Questions about LDA topic/term model - Mahout - [mail # user]
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...Hi, I'm running the new implementation of LDA algorithm. At first, I tried with 75 topic extraction and then, I tried with 5 topics. The "problem" is that if I make the mean of all the posit...
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Author: ivan obeso,
2012-05-22, 10:39
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Re: choosing appropriate t1,t2 for canopy clustering - Mahout - [mail # user]
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...In my project of text clustering I used the Euclidean distance as measurement method. I wrote a method which calculated the mean distance between all the pairs of vectors (documents) and use...
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Author: ivan obeso,
2012-05-16, 08:04
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Re: 2 questions about lda implementation - Mahout - [mail # user]
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...Ok, i have started to migrate my program to mahout 0.6 with the new LDA version. Before all, Im doing all with java code, no command line programs. The problem is that i cant use the s...
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Author: ivan obeso,
2012-05-10, 15:55
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2 questions about lda implementation - Mahout - [mail # user]
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...Im using mahout 0.6. I had runned the "mahout lda..." tool for command line for apply lda method in a corpus. But now, i want to code it in my java program and Im having a lot of problems be...
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Author: ivan obeso,
2012-05-08, 15:54
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Re: LDA input - Mahout - [mail # user]
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...Yes. You make a sequencial file using, for example, the SequenceFile.Writer class writing the name of the file as key, and all the content as the value. You can write as files as you want in...
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Author: ivan obeso,
2012-04-30, 07:26
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Mahout LDA for semantic search - Mahout - [mail # user]
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...Hi all, I have to develop a prototype to manage semantic search on a corpus. My idea is to create a space model of the corpus using LDA (after create the TF vectors) and then, represen...
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Author: ivan obeso,
2012-04-27, 12:26
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Faceted seatch with mahout - Mahout - [mail # user]
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...I want to implement a faceted search system with mahout. I have a bunch of documents so I clusterized it with kfuzzymeans, and tried to use TopDownClustering to give it a hierarchy, but it w...
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Author: ivan obeso,
2012-04-23, 08:53
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