Author: Nigel P. ChapmanPublisher: CUP Archive
ISBN: 9780521304139
Category : Computers
Languages : en
Pages : 254
Book Description
LR Parsing
Author: Nigel P. ChapmanPublisher: CUP Archive
ISBN: 9780521304139
Category : Computers
Languages : en
Pages : 254
Book Description
The Loophole in LSAT Logical Reasoning
Author: Ellen CassidyPublisher:
ISBN: 9781732749009
Category :
Languages : en
Pages :
Book Description
The Loophole in LSAT Logical Reasoning is the single most effective LSAT Logical Reasoning book on the market. It's the much-needed, ice-cold La Croix in your LSAT life.The Loophole in LSAT Logical Reasoning is the result of five years of development, testing, and iteration. Its methodologies are not just comprehensive; they're frankly just better.
Generalized LR Parsing
Author: Masaru TomitaPublisher: Springer Science & Business Media
ISBN: 1461540348
Category : Computers
Languages : en
Pages : 172
Book Description
The Generalized LR parsing algorithm (some call it "Tomita's algorithm") was originally developed in 1985 as a part of my Ph.D thesis at Carnegie Mellon University. When I was a graduate student at CMU, I tried to build a couple of natural language systems based on existing parsing methods. Their parsing speed, however, always bothered me. I sometimes wondered whether it was ever possible to build a natural language parser that could parse reasonably long sentences in a reasonable time without help from large mainframe machines. At the same time, I was always amazed by the speed of programming language compilers, because they can parse very long sentences (i.e., programs) very quickly even on workstations. There are two reasons. First, programming languages are considerably simpler than natural languages. And secondly, they have very efficient parsing methods, most notably LR. The LR parsing algorithm first precompiles a grammar into an LR parsing table, and at the actual parsing time, it performs shift-reduce parsing guided deterministically by the parsing table. So, the key to the LR efficiency is the grammar precompilation; something that had never been tried for natural languages in 1985. Of course, there was a good reason why LR had never been applied for natural languages; it was simply impossible. If your context-free grammar is sufficiently more complex than programming languages, its LR parsing table will have multiple actions, and deterministic parsing will be no longer possible.
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