著者

荒川 恵子 林家 染雀 太田 公子

出版者

関西楽理研究会

雑誌

関西楽理研究 (ISSN:13468588)

巻号頁・発行日

no.30, pp.107-123, 2013

著者

熊本 忠彦 太田 公子

出版者

The Japanese Society for Artificial Intelligence

雑誌

人工知能学会論文誌 = Transactions of the Japanese Society for Artificial Intelligence : AI (ISSN:13460714)

巻号頁・発行日

vol.21, pp.310-318, 2006-11-01

参考文献数

12

被引用文献数

7 5

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Impression-based music retrieval helps users in finding musical pieces that suit their preferences, feelings, or mental states from the huge volume of a music database. We have therefore developed an impression-based music retrieval system that enables this. Users are asked to select one or more pairs of impression words from the multiple pairs presented by the system and estimate each of the selected pairs on a seven-step scale in order to input their impressions into the system. For instance, if they want to locate musical pieces that will create a happy impression, they should check the radio button ``Happy'' in the impression scale, ``Very happy -- Happy -- A little happy -- Neutral -- A little sad -- Sad -- Very sad,'' where a pair of impression words with a seven-step scale is called an ``impression scale'' in this paper. The system would measure the distance between the impressions of every musical piece in a user-specified music database and the impressions inputted by the user, and determine candidate musical pieces to be presented as retrieval results. In this paper, we define the form of vectors that numerically express impressions of musical pieces, and propose a method of generating such a vector from a musical piece. The most significant attribute of this method is that it uses n-gram statistics of information on pitch, strength, and length of every tone in that musical piece as features extracted from it. We also present the results of evaluating the performance of the system.

著者

熊本 忠彦 太田 公子

出版者

一般社団法人情報処理学会

雑誌

情報処理学会研究報告自然言語処理(NL) (ISSN:09196072)

巻号頁・発行日

vol.2002, no.4, pp.35-40, 2002-01-21

被引用文献数

8

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我々は、音楽作品に関する知識が乏しい人でも簡便に利用できる「印象に基づく楽曲検索システム」を構築している。楽曲検索には、曲名や作曲家名、演奏家名といった書誌的な情報に基づくものや、(鼻歌)や歌声などの音響情報を用いたもの、歌詞(テキスト)情報に基づくものなどがあるが、これらの検索手段では、知らない曲や内容を忘れてしまったような曲など必要な情報を提示できない曲は検索できない。これに対し、印象に基づく楽曲検索は、楽曲の印象という曖昧な入力でも検索できるので、音楽情報に疎い人でも利用することが可能である。楽曲検索システムへの入力(すなわち印象)は、複数の印象尺度(楽曲印象を表現する形容語の対からなる尺度)とその評価値(7段階評価)の組合せによって表現される。したがって、楽曲検索システムがユーザフレンドリーであるためには、ユーザの検索意図を表現できるような印象尺度を用いる必要がある。本稿では、そのような印象尺度の設計方式を提案する。なお、楽曲のジャンルとしては、いわゆるクラシック(古典的西洋音楽)を対象としている。We are developing a system that will retrieve a music piece based on the user's impressions of it. People who have extensive knowledge of music can easily retrieve a specific music piece from a large music database by inputting concrete information such as the title, the names of the performers, or the name of the composer. However, people who lack such knowledge have difficulty in retrieving a specific music piece because they cannot give concrete information about it. Our music-retrieval system will enable anyone to easily retrieve a specific music piece by inputting expressions that describe their impressions of it. We have defined ten pairs of words the system will accept as input and have designed an impression scale for each one. Each scale has two words representing contrasting impressions, e.g. "sad" and "happy," and seven scale values between the two words. Users select a scale value for one or more scales to represent their impressions of the target music piece.