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New posts in information-retrieval

Problem understanding chi-squared feature selection

python statistics information-retrieval chi-squared

Dynamic regex for date-time formats

regex datetime information-retrieval

Is NDCG (normalized discounted gain) flawed? I have calculated a few alternative ranking quality measures, and I can't make heads or tails of it

python machine-learning information-retrieval supervised-learning ranking-functions

Which database can be used to store processed data from NLP engine

mysql database nlp information-retrieval information-extraction

How to create more complex Lucene query strings?

lucene full-text-search lucene.net information-retrieval

Storing an inverted index

python information-retrieval inverted-index

Precision at k when fewer than k documents are retrieved

information-retrieval

Compute word n-grams on original text or after lemma/stemming process?

information-retrieval n-gram text-analysis stemming lemmatization

How does a permuterm index works?

information-retrieval

Understanding Recall and Precision

search-engine information-retrieval precision-recall

Caluculating IDF(Inverse Document Frequency) for document categorization

machine-learning information-retrieval tf-idf document-classification categorization

What is the correct version of Average precision?

information-retrieval precision-recall

How to detect duplicates among text documents and return the duplicates' similarity?

algorithm information-retrieval text-analysis

How to use MultiFieldQueryParser from Lucene?

java lucene indexing information-retrieval

How to perform a faceted search?

java lucene information-retrieval faceted-search

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

nlp data-mining information-retrieval text-mining summary

Computing similarity between two lists

algorithm search statistics probability information-retrieval

What is the default list of stopwords used in Lucene's StopFilter?

java apache lucene information-retrieval stop-words

How to calculate TF*IDF for a single new document to be classified?

machine-learning classification information-retrieval text-mining document-classification
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