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搜索引擎术语
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搜索引擎术语(转) -----------已搜索过了，无重贴。 研究搜索引擎必须对相关术语、概念有确切的理解，词汇手册是必不可少的工具，国内这方面的翻译、整理工作丞待加强。近来因学习需要，常查检有关索引擎术语的英文注释，自觉收益非浅。查找和收集英文的有关搜索引擎的词汇，要用GOOGLE等英文搜索引擎，关键词“Search Engine Glossary”。如： Boolean search: A search allowing the inclusion or exclusion of documents containing certain words through the use of operators such as AND, NOT and OR. Concept search: A search for documents related conceptually to a word, rather than specifically containing the word itself. Full-text index: An index containing every word of every document cataloged, including stop words (defined below). Fuzzy search: A search that will find matches even when words are only partially spelled or misspelled. Index: The searchable catalog of documents created by search engine software. Also called "catalog." Index is often used as a synonym for search engine. Index is commonly pluralized as "indices." However, Search Engine Watch instead uses the alternative plural form "indexes." Keyword search: A search for documents containing one or more words that are specified by a user. Phrase search: A search for documents containing a exact sentence or phrase specified by a user. Precision: The degree in which a search engine lists documents matching a query. The more matching documents that are listed, the higher the precision. For example, if a search engine lists 80 documents found to match a query but only 20 of them contain the search words, then the precision would be 25%. Proximity search: A search where users to specify that documents returned should have the words near each other. Query-By-Example: A search where a user instructs an engine to find more documents that are similar to a particular document. Also called "find similar." Recall: Related to precision, this is the degree in which a search engine returns all the matching documents in a collection. There may be 100 matching documents, but a search engine may only find 80 of them. It would then list these 80 and have a recall of 80%. Relevancy: How well a document provides the information a user is looking for, as measured by the user. Search Engine: The software that searches an index and returns matches. Search engine is often used synonymously with spider and index, although these are separate components that work with the engine. Spider: The software that scans documents and adds them to an index by following links. Spider is often used as a synonym for search engine. Stemming: The ability for a search to include the "stem" of words. For example, stemming allows a user to enter "mming" and get back results also for the stem word "m." Stop words: Conjunctions, prepositions and articles and other words such as AND, TO and A that appear often in documents yet alone may contain little meaning. Thesaurus: A list of synonyms a search engine can use to find matches for particular words if the words themselves don't appear in documents. 其释义要比汉语准确和容易理解。有兴趣和语言基础的朋友不妨体会一下从英语学习搜索引擎乐趣 |
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2楼2005-02-26 13:42:12
