CA2365362A1 - Grammar template query system - Google Patents
Grammar template query system Download PDFInfo
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- CA2365362A1 CA2365362A1 CA002365362A CA2365362A CA2365362A1 CA 2365362 A1 CA2365362 A1 CA 2365362A1 CA 002365362 A CA002365362 A CA 002365362A CA 2365362 A CA2365362 A CA 2365362A CA 2365362 A1 CA2365362 A1 CA 2365362A1
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- Prior art keywords
- question
- template
- answer
- information server
- processor
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/951—Indexing; Web crawling techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/242—Query formulation
- G06F16/2428—Query predicate definition using graphical user interfaces, including menus and forms
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/33—Querying
- G06F16/332—Query formulation
- G06F16/3322—Query formulation using system suggestions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/33—Querying
- G06F16/3331—Query processing
- G06F16/3332—Query translation
- G06F16/3334—Selection or weighting of terms from queries, including natural language queries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/33—Querying
- G06F16/3331—Query processing
- G06F16/334—Query execution
- G06F16/3344—Query execution using natural language analysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99931—Database or file accessing
- Y10S707/99933—Query processing, i.e. searching
- Y10S707/99934—Query formulation, input preparation, or translation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S707/00—Data processing: database and file management or data structures
- Y10S707/99931—Database or file accessing
- Y10S707/99933—Query processing, i.e. searching
- Y10S707/99935—Query augmenting and refining, e.g. inexact access
Abstract
An information server directs users of the information server to desired sources of information where the desired sources of information are determined, at least in part, based on user input. The information server includes a query input processor, a question processor and an answer processor. The query input processor is used for accepting an initial user query. The question processor processes the initial user query to identify a set of possible well-formed questions selected from the question database, where a well-formed question is a question in the database that is coupled to at least one answer reference. The answer reference is typically either an answer or a pointer to a possible location of an answer. In a specific embodiment, the information server is coupled to the Internet so that users can pose questions using a Web browser from any Internet-connected device. In some systems, the question processor includes a tokenizer for tokenizing the initial user query into a list of words, a parser for generating a syntactic structure from the list of words, a normalizer for reducing the syntactic structure to a canonical syntactic structure, and a matcher for matching the canonical syntactic structure against a semantic network to obtain a weighted list of well-formed questions representative of possible semantic meanings for the initial user query.
Claims (6)
1. An information server for directing users of the information server to desired sources of information where the desired sources of information are determined, at least in part, based on user input, the information server comprising:
query input processor for accepting an initial user query;
a question database of template questions, wherein a template question is a question in the database that is coupled to at least one answer reference, the answer reference being one of an answer to the template question or a pointer to a possible location of an answer to the template question;
a question processor that processes the initial user query to identify a set of correlated template questions selected from the question database, wherein the question processor comprises a parser for generating a syntactic structure from the list of words and a normalizer for reducing the syntactic structure to a canonical syntactic structure;
means for presenting at least some of the set of template questions to the user;
means for accepting a user selection of a template question if more than one template question is presented; and an answer processor which responds to a user selection of a presented template question from the presented set of template questions, wherein the response of the answer processor depends on the at least one answer reference coupled to the user selected question from the presented set of template questions.
query input processor for accepting an initial user query;
a question database of template questions, wherein a template question is a question in the database that is coupled to at least one answer reference, the answer reference being one of an answer to the template question or a pointer to a possible location of an answer to the template question;
a question processor that processes the initial user query to identify a set of correlated template questions selected from the question database, wherein the question processor comprises a parser for generating a syntactic structure from the list of words and a normalizer for reducing the syntactic structure to a canonical syntactic structure;
means for presenting at least some of the set of template questions to the user;
means for accepting a user selection of a template question if more than one template question is presented; and an answer processor which responds to a user selection of a presented template question from the presented set of template questions, wherein the response of the answer processor depends on the at least one answer reference coupled to the user selected question from the presented set of template questions.
2. The information server of claim 1, wherein the user initial query is a text string comprising a sequence of one or more tokens, wherein a token is one or more words that have meaning together and a token is either a natural language question or a keyword string, which is a text string comprising one or more keywords in an order and zero or more logical connectors.
3. The information server of claim 1, wherein the question processor comprises:
a tokenizer for tokenizing the initial user query into a list of words;
a parser for generating a syntactic structure from the list of words;
a normalizer for reducing the syntactic structure to a canonical syntactic structure;
and a matcher for matching the canonical syntactic structure against a semantic network to obtain a weighted list of well-formed questions representative of possible semantic meanings for the initial user query.
a tokenizer for tokenizing the initial user query into a list of words;
a parser for generating a syntactic structure from the list of words;
a normalizer for reducing the syntactic structure to a canonical syntactic structure;
and a matcher for matching the canonical syntactic structure against a semantic network to obtain a weighted list of well-formed questions representative of possible semantic meanings for the initial user query.
4. The information server of claim 3, wherein the matcher comprises:
a structure mapper;
a substructure mapper; and a keyword mapper.
a structure mapper;
a substructure mapper; and a keyword mapper.
5. The information server of claim 1, wherein the question processor comprises confidence weighing logic that compares confidence weights for each of the set of correlated template questions selected from the question database and removes template questions from the set that have a confidence weight below a predetermined threshold.
6. The information server of claim 5, wherein the predetermined threshold is a value corresponding to a drop off of confidence weights of template questions in the set.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/272,717 US6584464B1 (en) | 1999-03-19 | 1999-03-19 | Grammar template query system |
US09/272,717 | 1999-03-19 | ||
PCT/US2000/004831 WO2000057302A1 (en) | 1999-03-19 | 2000-02-24 | Grammar template query system |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2365362A1 true CA2365362A1 (en) | 2000-09-28 |
CA2365362C CA2365362C (en) | 2012-03-27 |
Family
ID=23040969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2365362A Expired - Fee Related CA2365362C (en) | 1999-03-19 | 2000-02-24 | Grammar template query system |
Country Status (6)
Country | Link |
---|---|
US (1) | US6584464B1 (en) |
EP (1) | EP1163609A1 (en) |
JP (1) | JP4398098B2 (en) |
AU (1) | AU3378200A (en) |
CA (1) | CA2365362C (en) |
WO (1) | WO2000057302A1 (en) |
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