| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a program retrieval device with a small calculation amount for the retrieval by which programs such as TV, CTV, teletext and radio programs are retrieved and reservation of programs are made simply and the retrieval is conducted even when a retrieval keyword is not completely accurate. SOLUTION: The device is provided with a database 2 in which program data such as program date and time, channel, program name, contents of program and performers are stored. A word relating to a desired program is entered by an entry means 1, a word dictionary 4 having a characteristic vector of each word is referenced, a characteristic vector corresponding to a question text from the entry means 1 is generated by a vector generating means 5, a retrieval means 6 calculates a distance between the characteristic vector corresponding to the program data in the database with the generated characteristic vector so as to retrieve the desired program.</p> |
