US5077668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing an abstract of a document
Assignee: Toshiba Corp
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Filing: 1989-09-28
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Granted: 1991-12-31
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Expires: 2009-09-28
Abstract
Abstract A method and an apparatus for producing an abstract of a document capable of producing concise abstract with correct meaning precisely indicative of the content of the document automatically. The method includes the steps of: listing hint words which are preselected words indicative of presence of significant phrases that can reflect content of the document; searching all the hint words in the document; extracting sentences of the document in which any one of the listed hint words is found by the search; and producing an abstract for the document by juxtaposing the extracted sentences. An apparatus for performing this method is also disclosed.
Inventors
- 👤 Miwako Doi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:26
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/30; G06F16/34; G06F16/345; G06F40/00; G06F40/10; G06F40/166; G06F40/174
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
72 words
A method of producing an abstract for a document, comprising the steps of: listing hint words which are preselected words indicative of presence of significant phrases that can reflect content of the document; searching all the hint words in the document; extracting sentences of the document in which any one of the listed hint words is found by the search; and producing an abstract for the document by juxtaposing the extracted sentences.
Claim 2
Independent Claim
72 words
A method of producing an abstract for a document, comprising the steps of: listing hint words which are preselected words indicative of presence of significant phrases that can reflect content of the document; searching all the hint words in the document; extracting sentences of the document in which any one of the listed hint words is found by the search; and producing an abstract for the document by juxtaposing the extracted sentences.
Claim 3
Dependent Claim
57 words
The method of claim 1, further comprising the step of listing structural attribute for each sentence of the document; and wherein the search of some of the hint words are performed for only a fraction of all the sentences of the document, in accordance with nature of the hint words and the structural attributes of the sentences.
Claim 4
Dependent Claim
64 words
The method of claim 1, further comprising the steps of: listing most preferable part of speech for each hint word; and morphologically analyzing the sentences of the document; and wherein the extraction of the sentences is limited to those sentences in which any one of the listed hint words that is found by the search is in the listed type of part of speech.
Claim 5
Dependent Claim
119 words
The method of claim 1, further comprising the step of modifying the extracted sentences such that for a hint word that is found with the listed type of part of speech which is a verb, a new sentence in which that hint word appears as a predicate will be created and replaces an original extracted sentence, while when a subject of the extracted sentence is a pronoun or missing, an appropriate sentence will be substituted for that pronoun, whereas for a hint word that is found with the listed type of part of speech which is a noun, a new sentence in which that hint word appears as a subject will be created and replaces the original extracted sentence.
Claim 6
Dependent Claim
18 words
The method of claim 1, further comprising the step of allowing an operator to edit the produced abstract.
Claim 7
Independent Claim
77 words
An apparatus for producing an abstract for a document, comprising: means for listing hint words which are preselected words indicative of presence of significant phrases that can reflect content of the document; means for searching all the hint words in the document; means for extracting sentences of the document in which any one of the listed hint words is found by the search; and means for producing an abstract for the document by juxtaposing the extracted sentences.
Claim 8
Independent Claim
77 words
An apparatus for producing an abstract for a document, comprising: means for listing hint words which are preselected words indicative of presence of significant phrases that can reflect content of the document; means for searching all the hint words in the document; means for extracting sentences of the document in which any one of the listed hint words is found by the search; and means for producing an abstract for the document by juxtaposing the extracted sentences.
Claim 9
Dependent Claim
56 words
The apparatus of claim 6, further comprising means for listing structural attribute for each sentence of the document; and wherein the search of some of the hint words are performed for only a fraction of all the sentences of the document, in accordance with nature of the hint words and the structural attributes of the sentences.
Claim 10
Dependent Claim
65 words
The apparatus of claim 6, further comprising: means for listing most preferable part of speech for each hint word; and means for morphologically analyzing the sentences of the document; and wherein the extraction of the sentences is limited to those sentences in which any one of the hint words listed that is found by the search is in the listed type of part of speech.
Claim 11
Dependent Claim
118 words
The apparatus of claim 6, further comprising means for modifying the extracted sentences such that for a hint word that is found with the listed type of part of speech which is a verb, a new sentence in which that hint word appears as a predicate will be created and replaces an original extracted sentence, while when a subject of the extracted sentence is a pronoun or missing, an appropriate sentence will be substituted for that pronoun, whereas for a hint word that is found with the listed type of part of speech which is a noun, a new sentence in which that hint word appears as a subject will be created and replaces the original extracted sentence.
Claim 12
Dependent Claim
17 words
The apparatus of claim 6, further comprising means for allowing an operator to edit the produced abstract.
References Cited (Backward Citations)
JPH01273164A
Cited
JPH02257266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-30 | 1995-07-01 | 1995-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-30 | 1999-07-01 | 1999-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-30 | 2003-07-01 | 2003-12-31 | $7700.00 | Window Closed / Lapsed |