Query expansion (QE) is the process of reformulating a given query to improve retrieval performance in information retrieval operations, particularly in the context of query understanding.[1]
In the context of search engines, query expansion involves evaluating a user's input (what words were typed into the search query area, and sometimes other types of data) and expanding the search query to match additional documents. Query expansion involves techniques such as:
Finding synonyms of words, and searching for the synonyms as well
Finding semantically related words (e.g. antonyms, meronyms, hyponyms, hypernyms)
Finding all the various morphological forms of words by stemming each word in the search query
Fixing spelling errors and automatically searching for the corrected form or suggesting it in the results
Re-weighting the terms in the original query
Query expansion is a methodology studied in the field of computer science, particularly within the realm of natural language processing and information retrieval.
^Vectomova, Olga; Wang, Ying (2006). "A study of the effect of term proximity on query expansion". Journal of Information Science. 32 (4): 324–333. CiteSeerX 10.1.1.552.5987. doi:10.1177/0165551506065787. S2CID 7265523.
Queryexpansion (QE) is the process of reformulating a given query to improve retrieval performance in information retrieval operations, particularly in...
Google applies queryexpansion to submitted search queries, using techniques to deliver results that it considers "smarter" than the query users actually...
Filler (linguistics) Index (search engine) Information extraction Queryexpansion Stemming Text mining Rajaraman, A.; Ullman, J. D. (2011). "Data Mining"...
models. Query rewriting is the process of automatically reformulating a search query to more accurately capture its intent. Queryexpansion adds additional...
instance tf-idf weights. Do QueryExpansion, add these terms to query, and then match the returned documents for this query and finally return the most...
search engines treat words with the same stem as synonyms as a kind of queryexpansion, a process called conflation. A computer program or subroutine that...
number of relevant results than the original query would have. The following are examples of Latin queryexpansions automatically performed by Yamli Search:...
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articles similar to a group of articles; and offers a slider to control queryexpansion with common synonyms, word variants, mesh terms, etc. Its content is...
Boolean query processing. Other research has shown that relevance feedback and queryexpansion can be integrated with extended Boolean query processing...
Engineering (journal), an academic journal focused on quality assurance Queryexpansion, a technique to provide better search results by automatically adding...
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The question mark ? (also known as interrogation point, query, or eroteme in journalism) is a punctuation mark that indicates a question or interrogative...
tagging) Queryexpansion. A 2012 study by Zhao and Callan using expert created manual Conjunctive normal form queries has shown that searchonym expansion in...
provided in a search query. In other words, the ideas expressed in the information retrieved in response to a concept search query are relevant to the...
Parthasarathi, and Madhan Karky, Core Search Framework: Concept Based QueryExpansion. in Tamil Internet Conference in conjunction with World Classical Tamil...
time, these grants were ceded to the federal government. The first great expansion of the country came with the Louisiana Purchase of 1803, which doubled...
problem is defined as follows: given a set S of points in a space M and a query point q ∈ M, find the closest point in S to q. Donald Knuth in vol. 3 of...
pathinfo part without a query part may also be referred to as a 'clean URL' whose last part may be a 'slug'. An optional query component preceded by a...
Lucene API to integrate several services like snippets generation, queryexpansion, and many others. The LGTE provides the chance to implement new probabilistic...
hierarchical query is a type of SQL query that handles hierarchical model data. They are special cases of more general recursive fixpoint queries, which compute...
on a single page. Yandex Search is responsive to real-time queries, recognizing when a query requires the most current information, such as breaking news...
needs to compose queries on the basis of the given clues. This is done by queryexpansion, whose purpose is to convert the clue into a query expressed by...
151 acres for expansion works from neighbouring areas including Kolappakkam, Manappakkam, St. Thomas Mount and Cowl Bazaar. Expansion works includes...
Facebook Query Language (FQL) is a query language that allows querying Facebook user data by using a SQL-style interface, avoiding the need to use the...
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