Chart parser
A chart parser is a type of parser commonly used for natural languages that uses a data-driven approach based on a set of grammatical rules and a dictionary with each of the possible grammatical senses of each word indicated. There may also be a set of probabilities obtained from analysis of a text corpus.
A systematic search is used to explore the space of possible parses of the input string, and a data structure called a "chart" is used to eliminate backtracking and prevent a combinatorial explosion.
Types of Chart Parsers
Chart parsers can also be used for parsing computer languages. Earley parsers in particular have been used in compiler compilers such as the Accent programming language where their ability to parse using arbitrary Context-free grammars eases the task of writing the grammar for a particular language. However their lower efficiency has led to people avoiding them for most compiler work.
See also:
External links
- http://ska.ai-depot.com/paper/node31.html
Referenced By
Chart | Parser | Parser generators
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