Auto-index method for electronic document files and recording medium utilizing a word/phrase analytical program

• US 5,983,171 A
• Filed: 01/02/1997
• Issued: 11/09/1999
• Est. Priority Date: 01/11/1996
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Ootani, Yuuji, Yokoyama, Noriaki, Matsushita, Miho, Yokoyama, Yooichi
• Primary Examiner(s): Isen, Forester W.
• Assistant Examiner(s): EDOUARD, PATRICK NESTOR
• Application Number:
  US08/778,096
• Time in Patent Office: 1,041 Days
• Field of Search: 704/1, 704/7, 704/9-10, 707/100, 707/102, 707/530, 707/531
• US Class Current: 704/10
• CPC Class Codes: G06F 16/319 Inverted lists

Abstract

An auto-index method enabling to select words used for heading of an index based on an indexing object extraction condition set by a user. In order to generate an index intended for electronic document files, words and phrases are extracted from document files that may become an object for creating an index, the positions of words and phrases on an electronic publication at the time of extracting are extracted, an indexing object extraction condition inputted by a user is received and extracted words and phrases and the indexing object extraction condition are compared with each other to thereby extract index objective words and phrases.

Claims

1. An auto-index method intended for electronic document files, comprising the steps of:

extracting words and phrases from an electronic publication automatically in accordance with a token analytical program;

extracting the positions of words and phrases on said electronic publication at the time of the extracting by said word and phrase extracting step;

receiving an indexing object extraction condition inputted by a user; and

registering words and phrases relevant to said indexing object extraction condition among said extracted words and phrases in an index candidate dictionary.

2. An auto-index method intended for electronic document files according to claim 1, wherein said indexing object extraction condition includes at least a reading of words and phrases and an occurrence frequency of the words and phrases.

3. An auto-index method intended for electronic document files according to claim 1, wherein a plurality of documents are objects to be indexed and all of corresponding positions in said plurality of documents are extracted with respect to the same words and phrases.

4. An auto-index method intended for electronic document files, comprising the steps of:

extracting words and phrases from an electronic publication automatically in accordance with a token analytical program;

extracting the positions of words and phrases on said electronic publication at the time of the extracting by said words and phrases extracting step;

registering said extracted words and phrases and said extracted positional information in an index candidate dictionary while correlating one with another;

holding an indexing object extraction condition defined by a user; and

extracting words and phrases relevant to said indexing object extraction condition out of words and phrases registered in said index candidate dictionary.

5. A computer-readable recording medium for implementing automatically indexing for electronic document files, comprising:

program means for extracting words and phrases from an electronic publication automatically in accordance with a token analytical program;

program means for extracting the positions of words and phrases on said electronic publication at the time of the extracting by said word and phrase extracting means;

program means for receiving an indexing object extraction condition inputted by a user; and

program means for registering words and phrases relevant to said indexing object extraction condition among said extracted words and phrases in an index candidate dictionary.

6. A computer-readable recording medium for implementing automatically indexing for electronic document files, comprising:

program means for extracting words and phrases from an electronic publication automatically in accordance with a token analytical program;

program means for extracting the positions of words and phrases on said electronic publication at the time of the extracting by said words and phrases extracting means;

program means for registering said extracted words and phrases and said extracted positional information in an index candidate dictionary while correlating one with another;

program means for holding an indexing object extraction condition defined by a user; and

program means for extracting words and phrases relevant to said indexing extraction condition out of words and phrases registered in said index candidate dictionary.