Code, system, and method for retrieving text material from a library of documents

• US 20060047656A1
• Filed: 08/31/2005
• Published: 03/02/2006
• Est. Priority Date: 09/01/2004
• Status: Abandoned Application

• Current Assignee: Word Data Corporation
• Original Assignee: Word Data Corporation
• Inventors: Dehlinger, Peter J., Chin, Shao
• Application Number:
  US11/217,655
• Publication Number:
  US 20060047656A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/38 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/93 Document management systems

Abstract

Disclosed are a computer-readable code, system and method for retrieving one or more selected texts from a library of documents. The system processes a user-input search query representing the content of the text to be retrieved, and accesses a word index for the documents to identify those texts in the database having the highest word-match scores with the search query. The weights of words in the query may be adjusted to optimize the search.

Claims

1. A computer-assisted method for retrieving one or more selected texts from a library of documents, comprising

(a) processing a user-input search query composed of a sentence, sentence fragment or word list containing non-generic words representing the content of the text to be retrieved,

(b) accessing a database containing (1) a word-records table composed of (1a) non-generic words contained in said documents and (1b) for each word in the word-records table, a list of identifiers of texts in said documents containing that word, and (2) a document text table containing texts in said documents and associated text identifiers, to identify those texts in the document library having the highest word-match scores with said search query, based on pre-assigned word-match values for the non-generic words in said query,

(c) displaying to the user,

(i) the non-generic words in said query, and

(ii) for each of said non-generic words,

(iia) an occurrence value related to the occurrence of that word relative to other words in the query among texts having the highest word-match scores with the search query, and

(iib) user choices for adjusting the word-match values of each of the non-generic words in the search query, relative to other words in the query,

(d) processing user choices made in response to the information displayed in step (c)(ii),

(e) accessing said table of word records to identify texts in the document library having the highest word-match scores based on the user-adjusted word-match values processed in step (d),

(f) accessing said document text table to retrieve those texts identified in (e), and

(g) displaying to the user one or more of the texts in (e).

2. The method of claim 1, wherein said texts are paragraphs from a plurality of documents, and the text identifiers in the word-records table include document identifiers and paragraph identifiers for each document.

3. The method of claim 1, wherein some of the texts in a document are document titles, said query includes a specified document title and a length value which specifies a given length of document text following said title in a document, and said accessing is performed so as to identify those texts in the database having the highest word-match scores with said search query which are also within the specified document length following the specified document title.

4. The method of claim 1, wherein said length value specifies a given number of paragraphs following the specified title in a document.

6. The method of claim 1, wherein the pre-assigned word-match values for the non-generic words in said query are all set to substantially the same number.

7. The method of claim 1, wherein the user choices displayed in step (c)(iib) are (1) discard, (2) leave unchanged, (3) emphasis and (4) require, and each choice is associated with an assigned word-weight value that.

8. The method of claim 1, wherein the summary description of the content of a passage is represented as a description in natural-language passage, and step (a) includes classifying words in the summary description as either (i) generic, (ii) verb-root, or (iii) remaining words that are neither (i) nor (ii), discarding generic words, and converting verb-root words to a common verb root, and verb-root words in the dictionary of word records are expressed in verb-root form.

9. An automated system for retrieving one or more selected texts from a library of documents, comprising

(a) a computer,

(b) accessible by said computer, a database containing (1) a word records table composed of (1a) non-generic words contained in said documents and (1b) for each word in the table, a list of identifiers of texts in the documents containing that word, and (2) a document text table containing texts in said documents and associated text identifiers, and

(c) a computer readable code which is operable, under the control of said computer, to perform the steps of claim 1.

10. Computer-readable code for use with an electronic computer and a database containing (1) a word records table composed of (1a) non-generic words contained in said documents and (1b) for each word in the table, a list of identifiers of texts in the documents containing that word, and (2) a document text table containing texts in said documents and associated text identifiers, wherein said code is operable, under the control of said computer, and by accessing said database and dictionary, to perform the steps of claim 1.

5. The method of the section 1, wherein step (c) further includes displaying to the user, texts having the highest word-match scores based on pre-assigned word-match values for the non-generic words in said query.

11. A computer-assisted method for retrieving one or more selected texts from a library of documents, comprising

(a) processing a user-input search query composed of a sentence, sentence fragment or word list containing non-generic words representing the content of the text to be retrieved, and a specified document title and length value which specifies a given length of text following said title in a document,

(b) accessing a database containing (1) a word records table composed of (1a) non-generic words contained in said documents and (1b) for each word in the table, a list of identifiers of texts in said documents containing that word, and (2) a document text table containing texts in said documents and associated text identifiers, to identify those texts in the database having the highest word-match scores with said search query, based on pre-assigned word-match values for the non-generic words in said query, and which are within the specified length value following the specified title in said documents, and

(c) displaying to the user one or more of the texts identified in (b).

12. The method of claim 11, wherein said length value specifies a given number of paragraphs following the specified title in a document.

13. A computer-assisted method for retrieving one or more selected texts from a library of documents, where some of said texts may include titles, comprising

(a) processing a user-input search query composed of a sentence, sentence fragment or word list containing non-generic words representing the content of the text to be retrieved, where said query includes a specified title in a document and a length value which specifies a given length of document text following said title in a document,

(b) accessing a database containing (1) a word-records table composed of (1a) non-generic words contained in said documents and (1b) for each word in the word-records table, a list of identifiers of texts in said documents containing that word, and (2) a document text table containing texts in said documents and associated text identifiers, wherein some of the texts in a document are document titles,

(c) by said accessing, identifying those texts in the database having the highest word-match scores with said search query which are also within the specified document length following the specified document title,

(d) accessing said document text table to retrieve those texts identified in (c), and

(e) displaying to the user one or more of the texts in (e).

14. The method of claim 13, wherein said length value specifies a given number of paragraphs following the specified title in a document.