番組検索装置

Japanese Patent JP4909033

B2

The present invention provides a program search apparatus (1) and method to automatically search for a recommended program that follows changes in a user's preferences. Recording operation processing (11) controls an operation panel whereby the user can perform recording operations, and whereby all recording operation events of the user are extracted. Record history record processing (12) accumulates all user operations relating to program recording in a storage apparatus as a recording history. Preference change analysis processing (18) extracts recorded programs in the most recent period from the recording history, obtains the weight of a word contained in the recorded program from an index generated from an EPG, adds the weight of the word to a preference in a period, and normalizes the preference in that period. The preference in programs for a period immediately preceding the most recent period (previous period) is normalized in the same manner, and a degree of similarity to the preference in the most recent period is calculated. Preference query generation processing (19) emphasizes (five-fold) the weight of the words contained in the recorded programs in the period (June) and generates a preference query (Fig. 7). The present invention provides a program search apparatus and method for searching for recommended programs with high accuracy and that follows changes in a user's preferences.

Takahiro Matsuda
Akira Karasuya

JP2006324767A

April 04, 2012

November 30, 2006

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富士通株式会社

H04N7/173; G06F17/30; G11B27/00; G11B27/10; H04N5/76; H04N5/91; H04N21/442; H04N21/482

JP2005352754A
JP200323589A
JP2006148853A
JP946689A
JP200539749A
JP200648319A
JP2006127145A

Yoshiyuki Osuga
Motoaki Hisagi

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