Found the book which is about IR while I was making research about “Latent Semantic Indexing”. IR focuses on finding necessary data within large datasets and also deals with “unstructured” (and “semistructured”) data.
The book discusses IR techniques and algorithms such as XML retrieval, Probabilistic information retrieval, Language models for information retrieval, Text classification and Naive Bayes, Vector space classification … vs. It is really useful someone who has to deal with unstructured data like me.
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