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You're reading from  Natural Language Processing and Computational Linguistics

Product typeBook
Published inJun 2018
Reading LevelBeginner
PublisherPackt
ISBN-139781788838535
Edition1st Edition
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Bhargav Srinivasa-Desikan
Bhargav Srinivasa-Desikan
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Bhargav Srinivasa-Desikan

Bhargav Srinivasa-Desikan is a research engineer working for INRIA in Lille, France. He is a part of the MODAL (Models of Data Analysis and Learning) team, and he works on metric learning, predictor aggregation, and data visualization. He is a regular contributor to the Python open source community, and completed Google Summer of Code in 2016 with Gensim where he implemented Dynamic Topic Models. He is a regular speaker at PyCons and PyDatas across Europe and Asia, and conducts tutorials on text analysis using Python.
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Similarity queries

Now that we have the capability to compare between two documents, it is possible for us to set up our algorithms to extract out the most similar documents for an input query simply index each of the documents, then search for the lowest distance value returned between the corpus and the query, and return the documents with the lowest distance values these would be most similar. Luckily for us, however, Gensim has in-built structures to do this document similarity task!

We will be using the similarities module to construct this structure.

from gensim import similarities

We previously mentioned creating an index we can do this far faster with the similarities module. As mentioned in the Gensim documentation for the Similarity class the Similarity class splits the index into several smaller subindexes (shards), which are disk...

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Natural Language Processing and Computational Linguistics
Published in: Jun 2018Publisher: PacktISBN-13: 9781788838535

Author (1)

author image
Bhargav Srinivasa-Desikan

Bhargav Srinivasa-Desikan is a research engineer working for INRIA in Lille, France. He is a part of the MODAL (Models of Data Analysis and Learning) team, and he works on metric learning, predictor aggregation, and data visualization. He is a regular contributor to the Python open source community, and completed Google Summer of Code in 2016 with Gensim where he implemented Dynamic Topic Models. He is a regular speaker at PyCons and PyDatas across Europe and Asia, and conducts tutorials on text analysis using Python.
Read more about Bhargav Srinivasa-Desikan