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Concept search

Key Word in Context

Information extraction

Full-text search

Natural language processing

ChaSen

Cortana (virtual assistant)

Deeplearning4j

Google Books Ngram Viewer

Lexical Markup Framework

MeCab

Modular Audio Recognition Framework

Okapi BM25

POPFile

SemEval

SHRDLU

Tatoeba

Tf–idf

Universal Dependencies

Semantic network

ELIZA

Web mining

Wendy Lehnert

Entity linking

Probabilistic context-free grammar

Sentiment analysis