Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
1999-03-26
2001-10-02
Alam, Hosain T. (Department: 2172)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C707S793000, C709S203000, C709S219000, C706S012000, C725S116000, C345S215000, C345S215000
Reexamination Certificate
active
06298344
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a document searching apparatus.
2. Description of the, Prior Art
A document searching apparatus for storing a plurality of documents, receiving a searching request including key word data, and successively displaying a searching result on a display is known.
SUMMARY OF THE INVENTION
The aim of the present invention is to provide a superior document searching apparatus.
According to the present invention there is provided a first document searching apparatus including: a memory for storing a plurality of documents; a searching request receiving portion for receiving a searching request including key word data; a matching degree calculation portion responsive to the searching request for calculating matching degrees between the key word data and the documents in the memory; a buffer; an arranging portion responsive to the matching degree calculation portion for storing a portion of documents arranged in order of the calculated matching degrees, the number of the documents of the portion being equal to or less than a reference number; a searching result outputting portion for outputting the portion of documents from the buffer; a lowest matching degree detecting and storing portion responsive to the matching degree calculation portion for detecting and storing the lowest matching degree of the documents of the portion; a lower rank document searching request receiving portion for receiving a lower rank document searching request; and a lower rank document searching portion responsive to the lower rank document searching request for operating the matching degree calculation portion and the arranging portion to arrange, in the buffer, from the memory, a neighbor portion of the documents having the calculated matching degrees regarding the key word data less than the lowest matching degree from the lowest matching degree detecting and storing portion as an upper limit value in order of the calculated matching degrees of the neighbour portion and operating the searching result outputting portion to output the neighbour portion of documents from the buffer, the number of the documents of the neighbour portion being equal to or less than the reference number, so that arrangement of the documents in the buffer is provided with limitation of the matching degree within the requested the number of the results.
In the first document searching apparatus, the searching result outputting portion further outputs the calculated matching degrees correspondingly of the portion of documents arranged and outputs the calculated matching degrees correspondingly of the neighbour portion of documents arranged.
The first document searching apparatus may further include the number of results request receiving portion for receiving a request of the number of the documents in the portion and the neighbour portion to be outputted from the buffer as the reference number.
The first document searching apparatus may further include an index generating portion for generating an index correspondingly including a plurality of index key word data from the documents, document number data of the documents including each of the index key word data and data of the number of appearances of each of the index key word data every the document, wherein the matching degree calculation portion calculates the degrees of matching between the key word data and each of the documents with reference to the index when there is one of the index key word data corresponding to the key word data.
According to this invention, there is provided a second document searching apparatus including: a memory for storing a plurality of documents; a searching request receiving portion for receiving a searching request including key word data; a matching degree calculation portion responsive to the searching request for calculating matching degrees between the key word data and the documents in the memory; a buffer; an arranging portion responsive to the matching degree calculation portion for storing a portion of documents arranged in order of the calculated matching degrees, the number of the documents of the portion being equal to or less than a reference number; a searching result outputting portion for outputting the portion of documents from the buffer; a lowest matching degree detecting and storing portion responsive to the matching degree calculation portion for detecting and storing the lowest matching degree of the documents of the portion; a lower rank document searching request receiving portion for receiving a lower rank document searching request; a lower rank document searching portion responsive to the lower rank document searching request for operating the matching degree calculation portion and the arranging portion to arrange, in the buffer, from the memory, a lower rank portion of the documents having the calculated matching degrees regarding the key word data less than the lowest matching degree from the lowest matching degree detecting and storing portion as an upper limit value in order of the calculated matching degrees of the lower rank portion and operating the searching result outputting portion to output the lower rank portion of documents from the buffer, the number of the documents of the lower rank portion being equal to or less than the reference number; a highest matching degree detecting and storing portion responsive to the matching degree calculation portion for detecting and storing the highest matching degree of the documents of the lower rank portion; a higher rank document searching request receiving portion for receiving a higher rank document searching request; a higher rank document searching portion responsive to the higher rank document searching request for operating the matching degree calculation portion and the arranging portion to arrange, in the buffer, from the memory, a higher rank portion of the documents having the calculated matching degrees regarding the key word data higher than the highest matching degree from the highest matching degree detecting and storing portion as a lower limit value in order of the calculated matching degrees of the higher rank portion and operating the searching result outputting portion to output the higher rank portion of documents from the buffer, the number of the documents of the higher rank portion being equal to or less than the reference number, so that a neighbour lower ranked documents are searched without rranging other ranked documents.
According to this invention, there is further provided a third document searching apparatus including: a memory for storing a plurality of documents every edition which is renewable; a latest edit detection portion responsive to the memory for detecting the latest edition of the edition and generating latest edition data; a first searching request receiving portion for receiving a first searching request including key word data; a matching degree calculation portion responsive to the first searching request for calculating matching degrees between the key word data and the documents of the latest edition in the memory with reference to the latest edition data; a buffer; an arranging portion responsive to the matching degree calculation portion for storing a portion of documents of the latest edition indicated by the latest edition data arranged in order of the calculated matching degrees, the number of the documents of the portion being equal to or less than a reference number, the latest edition being referred as an used edition; an edition data storing portion for storing the latest edition data used in the arranging portion as used-edition data indicative of the used edition; a first searching result outputting portion responsive to the arranging portion for outputting the portion of documents from the buffer; a second searching request receiving portion for receiving a second searching request; a searching portion responsive to the second searching request for operating the matching degree calculation portion and the arranging portion to a
Inaba Mitsuaki
Ito Hayashi
Kanno Yuji
Noguchi Naohiko
Sato Mitsuhiro
Alam Hosain T.
Alam Shahid
Connolly Bove Lodge & Hutz
Matsushita Electric - Industrial Co., Ltd.
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