A study on the cross-media data retrieval based on Kansei

本文的研究目的是提高基于人的印象的多媒体检索系统的准确率。第一种方法是从网页中自动提取关键词。关键词包括形容词和形容词动词以及名词。实验结果表明，提取的名词可以作为网页的关键词。另一方面，形容词和形容动词不能作为关键词。这可能是由于网页中的形容词和形容动词很少。第二种方法包括感性检索系统的个人适应和情感适应。为了使个人适应容易，开发了一种减少用户学习他/她的品味的负担的方法。该方法基于多媒体数据的分组和用户的分组。基于这些组来决定代表性多媒体数据和印象词对。实验表明，个人适应是真正实现的，需要改进。实验研究了情感对感性多媒体数据检索的图像敏感性和行为的影响。这一评价澄清了若干现象。第一，感觉影响敏感度。可以观察到两种行为：强调行为和抑制行为。行为类型影响敏感性。这两种类型的行为使检索方法变得容易。也就是说，检索可以仅通过指定用户的感觉来开始。

This aim of this work is the accuracy improvement of multimedia retrieval system based on human impression. The first approach is the automatic extraction of the keywords from Web pages. The keywords include adjectives and adjectival verbs as well as nouns. The experimental result shows that the nouns extracted can be permitted as keywords of the Web pages. On the other hand, the adjectives and adjectival verbs can not be admitted as the keywords. This may be caused by the fact that there are few adjectives and adjectival verbs in a Web page. The second approach of this work includes the personal adaptation and the feeling adaptation of the Kansei retrieval system. To make the personal adaptation easy, a method of decreasing the user's burden in learning his/her taste is developed. This method is based on the grouping of the multimedia data and that of the users. The representative multimedia data and the impression word pairs are decided based on the groups. It is experimentally clarified that the personal adaptation is really attained, and the improvement is required. Effects of feeling on sensitivity to pictures and behavior of Kansei multimedia data retrieval is experimentally evaluated. This evaluation clarified several phenomena. The first is that the feeling affects the sensitivity. Two types of behavior can be observed : the emphasizing behavior and the inhibiting one. The type of behavior affects the sensitivity. The two types of behavior make the retrieval method easy. That is, the retrieval can start only by specifying the user's feeling.