Method and system for extracting sentences

Abstract

Methods and apparatus for extracting sentences are provided, one of methods comprises, receiving a document summarization request, which does not comprise a keyword for extracting important sentences from a document, from a user terminal, selecting a keyword, which reflects the preference of a user of the user terminal, based on a profile of the user, extracting important sentences from the document based on the selected keyword; and generating a summary of the document based on the extracted important sentences.

What is claimed is: 
     
         1 . A document summarization method comprising:
 receiving a document summarization request, which does not comprise a keyword for extracting important sentences from a document, from a user terminal;   selecting a keyword, which reflects the preference of a user of the user terminal, based on a profile of the user;   extracting important sentences from the document based on the selected keyword; and   generating a summary of the document based on the extracted important sentences.   
     
     
         2 . The document summarization method of  claim 1 ,
 wherein the selecting comprises selecting a first keyword and a second keyword which reflect the preference of the user,   wherein the extracting comprises:
 extracting k important sentences from the document based on the first keyword; and 
 extracting m important sentences from the document based on the second keyword, and 
   wherein the generating comprises generating a summary based on identical sentences among the k important sentences and the m important sentences.   
     
     
         3 . The document summarization method of  claim 1 ,
 wherein the selecting comprises selecting a first keyword and a second keyword which reflect the preference of the user,   wherein the extracting comprises:
 extracting k important sentences from the document based on the first keyword; 
 generating a first summary based on the k important sentences; 
 extracting m important sentences from the first summary based on the second keyword; and 
 generating a second summary based on the m important sentences. 
   
     
     
         4 . The document summarization method of  claim 1 ,
 wherein the selecting comprises selecting a first keyword and a second keyword which reflect the preference of the user, the first keyword being different from the second keyword,   wherein the extracting comprises:
 extracting a first important sentence from the document based on the first keyword; and 
 extracting a second important sentence from the document based on the second keyword, 
   wherein the generating comprises generating a summary which comprises the first important sentence and the second important sentence, the first important sentence being different from the second important sentence.   
     
     
         5 . A document summarization apparatus comprising:
 a network interface;   one or more processors;   a memory which is loaded with a computer program executed by the processors; and   a storage device which stores one or more files,   wherein the computer program comprises:
 an operation of receiving a document summarization request, which does not comprise a keyword for extracting important sentences from a document, from a user terminal; 
 an operation of selecting a keyword, which reflects the preference of a user of the user terminal, based on a profile of the user; 
 an operation of extracting important sentences from the document based on the selected keyword; and 
 an operation of generating a summary of the document based on the extracted important sentences. 
   
     
     
         6 . The document summarization apparatus of  claim 5 ,
 wherein the operation of the selecting comprises an operation of selecting a first keyword and a second keyword which reflect the preference of the user,   wherein the operation of the extracting comprises:
 an operation of extracting k important sentences from the document based on the first keyword; and 
 an operation of extracting m important sentences from the document based on the second keyword, and 
 wherein the operation of the generating comprises an operation of generating a summary based on identical sentences among the k important sentences and the m important sentences. 
   
     
     
         7 . The document summarization apparatus of  claim 5 ,
 wherein the operation of the selecting comprises an operation of selecting a first keyword and a second keyword which reflect the preference of the user,   wherein the operation of the extracting comprises:
 an operation of extracting k important sentences from the document based on the first keyword; 
 an operation of generating a first summary based on the k important sentences; 
 an operation of extracting m important sentences from the first summary based on the second keyword; and 
 an operation of generating a second summary based on the m important sentences. 
   
     
     
         8 . The document summarization apparatus of  claim 5 ,
 wherein the operation of the selecting comprises an operation of selecting a first keyword and a second keyword which reflect the preference of the user, the first keyword being different from the second keyword,   wherein the operation of the extracting comprises:
 an operation of extracting a first important sentence from the document based on the first keyword; and 
 an operation of extracting a second important sentence from the document based on the second keyword, 
   wherein the operation of the generating comprises generating a summary which comprises the first important sentence and the second important sentence, the first important sentence being different from the second important sentence.