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New posts in information-retrieval

How to use MultiFieldQueryParser from Lucene?

How to perform a faceted search?

Text summarization: how to choose the right n-gram size

Calculating IDF (as in TF-IDF) when testing?

Online clustering of news articles

What's the difference: ConcurrentUpdateSolrServer vs HttpSolrServer vs CommonsHttpSolrServer?

Efficiently extract WikiData entities from text

unsupervised Named entity recognition (NER) with custom controlled vocabulary for crosslink-suggestions in Java

Algorithm for search in inverted index

Representation and a good similarity measure between Tweets for topic detection

Fast in-memory inverted index

Constructing a tree using Python

Boost fresh documents with Lucene

Is it OK if the false positive rate in a ROC curve does not end in 1.0?

How to detect if a event/action occurred from a text?

How to find possible English words in long random string?

Confusion about (Mean) Average Precision

Similarity Between Users Based On Votes