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Cognition Technologies Achieves Another Milestone Toward True Semantic Search
Cognition’s New Advanced Syntactic Parser, Combined with the World’s Largest Semantic Map of English, Enables Tag-Free Semantic Search
Cognition’s advanced syntactic parser greatly enhances Cognition's Search technology by making fuller use of meaning relationships between words (syntactic context), particularly between the verbs and arguments in a sentence which is a key piece in the language-understanding puzzle. The parser improves upon the already high accuracy of the pre-parser system by significantly reducing error rates in word meaning disambiguation (i.e. understanding the correct meaning of a word based upon the context in which it is used). This is accomplished with no decrease in query speed and only a moderate increase in indexing time.
Cognition’s syntactic parser is a CYK (Cocke-Younger-
“Beyond accuracy improvement, Cognition’s advanced syntactic parser is an essential step towards realization of the Semantic Web which evolves content from simple data to real information,”
Examples of Search accuracy improvements due to the introduction of the new advanced parser are:
Query: “Which car companies tanked?”
The pre-parser system incorrectly interprets “tanked” as “to gas up” while the advanced parser recognizes the correct meaning as “to fail or decline” because, in this case, it is an intransitive verb usage and Cognition’s sub-categorizations (syntactic feature data) prefer this meaning for this sentence.
Query: “What happened after Rome fell to the Visigoths?”
The pre-parser system incorrectly interprets “fell” as the stem “fell” as in “to fell a tree.” The advanced parser recognizes that “fell” followed by a prepositional phrase is a better match for the “concede or defeat” sense of the stem “fall” and correctly picks that stem.
Query: “When did the U.S. begin building monuments?”
The pre-parser system incorrectly analyzes “building”
More information about this capability and Cognition’s Semantic NLP™ technology is available on its Web site at www.cognition.com, along with the ability to perform queries on several well-known data sets, such as Wikipedia™.
Cognition Technologies, based in Los Angeles, has developed a revolutionary Semantic Natural Language Processing (NLP) technology which adds word and phrase meaning and “understanding”
Cognition ► Giving technologies new meaning.™
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Cognition Technologies has developed a revolutionary Semantic Natural Language Processing (NLP) technology which adds word and phrase meaning and “understanding”