Music recommendation method with respect to message service

Abstract

A music recommendation method and a music recommendation system are provided. The music recommendation method includes: selecting music files according to a theme of the message service and music, a mood of the music, a similarity between content of the message service and content of the music; and recommending selected music files to a user.

What is claimed is: 
     
         1 . A music recommendation method with respect to a message inputted by a user, for transmitting via a message service in a personal communication terminal, the method comprising:
 selecting music files according to a theme of the message, a theme of a music, and a mood of the music,   determining whether the number of selected music files is greater than a predetermined number, and, if the number of selected music files is greater than the predetermined number, then further selecting music files from the selected music files according to a similarity between content of the message and content of the music; and   recommending the selected music files to the user.   
     
     
         2 . The method of  claim 1 , wherein the selecting of the music files further comprises:
 selecting target music files; and   classifying the target music files and the message according to a theme, selecting at least one music file which corresponds to the theme of the message according to a result of the classification, from among the target music files, and generating a list including the at least one music file.   
     
     
         3 . The method of  claim 2 , wherein the selecting of the music files further comprises:
 classifying each of music files of the list according to a mood, and eliminating at least one music file, whose mood is inappropriate for the theme of the message, from the list.   
     
     
         4 . The method of  claim 2 , wherein the classifying of the target music files comprises:
 classifying lyrics of the music files according to the theme;   classifying a title of the music files according to the theme;   classifying the message according to a theme;   merging a result of the classification of the lyrics with a result of the classification of the title; and   the classifying the target music files according to the theme, is based on a result of the merged classification.   
     
     
         5 . The method of  claim 4 , wherein the classifying of the lyrics, the title, or the message according to the theme comprises:
 selecting a feature to be used for the theme classification from music files, stored in a database, or a collection of the message;   indexing one category using the selected feature;   pre-processing the music files stored in a personal mobile terminal and a message inputted by the user;   indexing the music files and the message according to a result of the pre-processing; and   allocating each category to the indexed music files and the message based on a result of the indexing of the category.   
     
     
         6 . The method of  claim 1 , wherein the further selecting music files from the selected music files according to a similarity between content of the message and content of the music comprises:
 indexing the content of the message and the content of the music files;   calculating a similarity between the indexed content of the message and the indexed content of the music files;   comparing the calculated similarity with a threshold value; and   selecting the music files when the calculated similarity is greater than the threshold value.   
     
     
         7 . The method of  claim 1 , wherein the recommending of the selected music files to the user comprises:
 arranging the music files further selected according to the similarity; and   providing a list of the arranged music files.   
     
     
         8 . A computer-readable storage medium storing a program for implementing a music recommendation method with respect to a message inputted by a user, for transmitting via a message service in a personal communication terminal, the method comprising:
 selecting music files according to a theme of the message, a theme of a music, and a mood of the music,   determining whether the number of selected music files is greater than a predetermined number, and, if the number of selected music files is greater than the predetermined number, then further selecting music files from the selected music files according to a similarity between content of the message and content of the music; and   recommending the selected music files to the user.   
     
     
         9 . A music recommendation system with respect to a message inputted by a user, for transmitting via a message service in a personal communication terminal, the system comprising:
 a music file selection unit to select music files according to a theme of the message, a theme of a music, and a mood of the music,   filtering unit to determine whether the number of selected music files is greater than a predetermined number, and, if the number of selected music files is greater than a predetermined number, then to further select music files from the previously selected music files according to a similarity between content of the message, and content of the music; and   a recommendation unit to recommend the selected music files to the user.   
     
     
         10 . The system of  claim 9 , wherein the music file selection unit comprises:
 a selection unit to select target music files, classify the target music files and the message according to a theme, select at least one music file which corresponds to the theme of the message according to a result of the theme classification, from among the target music files, and generate a list including the at least one music file.   
     
     
         11 . The system of  claim 10 , wherein the music file selection unit further comprises:
 a first filtering unit to classify each of music files of the list according to a mood, and to eliminate at least one music file from the list based on the mood.   
     
     
         12 . The system of  claim 10 , wherein the music file selection unit further comprises:
 a lyrics theme classification unit to classify lyrics of the music files according to a theme;   a title theme classification unit to classify a title of the music files according to a theme;   a message theme classification unit to classify the message according to a theme;   a classification result merging unit to merge a result of the classifications of the lyrics with a result of the classifying of the title; and   a music selection unit to select the plurality of the music files based on a music collection classified according to the theme and the message classified according to the theme.   
     
     
         13 . The system of  claim 12 , wherein each of the lyrics theme classification unit, the title theme classification unit, and the message theme classification unit comprises:
 a feature selection unit to select one of a feature of the title, the lyrics, or the message, which is used for the theme classification from a database;   a category index unit to index one of a category of the title, the lyrics, or the message using the feature;   a pre-processing unit to pre-process one of the title, the lyrics, or the message stored in the user personal communication terminal;   an index unit to index the music files and the message according to a result of the pre-processing; and   a category allocation unit to allocate each category to the indexed music files and the message based on a result of the indexing of the category.   
     
     
         14 . The system of  claim 9 , wherein the filtering unit comprises:
 a message index unit to index a content of a message inputted by the user;   a lyrics index unit to index a content of a title and lyrics of the previously selected music files;   a similarity calculation unit to calculate a similarity between (1) the indexed content of the title and lyrics, and (2) the indexed content of the message;   a comparison unit to compare the calculated similarity with a threshold value; and   a selection unit to select the music files when the calculated similarity is greater than the threshold value.   
     
     
         15 . The system of  claim 9 , wherein the recommendation unit comprises:
 a music arrangement unit to arrange the music files further selected based on the similarity; and   a music list providing unit to provide a list of the arranged music files.