Document processor, document classification device, document processing method, document classification method, and computer-readable recording medium for recording programs for executing the methods on a computer

Abstract

In the document processor, a document memory which stores input document data; a selector which selects all or part of document data stored in the document memory; a characteristics extractor which extracts data relating to characteristics of letter rows from all or part of the document data selected by the selector; a work processor which work-processes all or part of the document data based on the data relating to characteristics of letter rows extracted by the characteristics extractor; and an output section which outputs all or part of the document data work-processed by the work processor are provided.

1 . A document classification device which classifies document clusters in accordance with contents thereof, comprising: 
 a document input unit which inputs document data groups;    a document dividing unit which divides document data into one or multiple divided document data based on a predetermined reference;    a document-divided document map creation unit which creates a map showing the correspondence between the document data and the divided document data;    a divided document classification unit which classifies the divided document data such that multiple topics and meanings in a document data are classified into categories according to specific topics and meaning;    a divided document classification result creation unit which creates divided document classification result information based on a classification result of said divided document classification unit; and    a document classification result creation unit which creates classification result information of the document data using the document-divided document map and the divided document classification result information.    
   
   
       2 . The document classification device according to  claim 1 , further comprising: 
 a document save unit which saves the document data;    a divided document save unit which saves the divided document data; and    a document-divided document map save unit which saves a document-divided document map created by said document-divided document map creation unit.    
   
   
       3 . The document classification device according to  claim 2 , further comprising a divided document classification result save unit which saves the divided document classification result information created by said divided document classification result creation unit.  
   
   
       4 . The document classification device according to  claim 1 , wherein a plurality of divided document data created by said document dividing unit comprises the document data in its state prior to being divided.  
   
   
       5 . The document classification device according to  claim 1 , wherein said document dividing unit divides document data based on information relating to the structure of the document data.  
   
   
       6 . The document classification device according to  claim 1 , further comprising: 
 a document element extraction unit which extracts elements in the document data; and    an element-accompanying information extraction unit which extracts element-accompanying information accompanying the elements extracted by said document element extraction unit,    said document dividing unit divides the document data using elements extracted by said document element extraction unit, or the elements and element-accompanying information extracted by said element-accompanying information extraction unit.    
   
   
       7 . The document classification device according to  claim 1 , wherein said document dividing unit divides the document data in compliance with a specified specification range.  
   
   
       8 . The document classification device according to  claim 1 , wherein said document dividing unit divides the document data based on the number of letters, the number of sentences, or both the number of letters and the number of sentences.  
   
   
       9 . The document classification device according to  claim 1 , wherein said document classification result creation unit extracts and presents information showing document data, and representative information accompanying the document data, as classification result information.  
   
   
       10 . The document classification device according to  claim 9 , wherein said document classification result creation unit extracts and presents information showing divided document data, and representative information accompanying the divided document data, as classification result information.  
   
   
       11 . A document classification method which classifies document clusters in accordance with contents thereof, comprising the steps of: 
 inputting document data groups;    dividing document data into one or multiple divided document data based on a predetermined reference;    creating a map showing the correspondence between the document data and the divided document data;    classifying the divided document data such that multiple topics and meanings in document data are classified into categories according to specific topics and meanings;    creating divided document classification result information based on the classification result of classifying the divided documents; and    creating classification result information of the document data using the