著者

Susumu Yamazaki Takayuki Kando Michihiro Matsumoto Tsuneo Nakanishi Teruaki Kitasuka Akira Fukuda

出版者

Information Processing Society of Japan

雑誌

IPSJ Digital Courier (ISSN:13497456)

巻号頁・発行日

vol.1, pp.128-140, 2005 (Released:2005-01-26)

参考文献数

17

被引用文献数

1

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A recent trend in program development is the employment of generic software components such as libraries and frameworks. Typically, however, it is difficult to achieve both genericity and runtime execution efficiency simultaneously. Therefore, many researchers have studied program specialization, which is one technique to translate a generic program automatically into an efficient program specialized for a specific runtime environment. However, it is very difficult to implement a system that can specialize practical applications. Although some possible reasons exist for the problem, this paper focuses on the problems of instruction-dependent processes. Each necessary analysis for existing program specializer systems must include instruction-dependent processes. Therefore, not only does the code size of the specializer get larger, but maintainability and reliability are also degraded. Then, we propose a new algorithm of logic-based binding time analysis using reaching definitions analysis, which is widely used among many other analyses. We also evaluate how this technique improves the implementation simplicity of binding time analyzer: the code size is reduced by about 10%. Especially, instruction-dependent processes are almost entirely eliminated.

著者

Hiroshi Uehara Kenichi Yoshida

出版者

Information Processing Society of Japan

雑誌

IPSJ Digital Courier (ISSN:13497456)

巻号頁・発行日

vol.2, pp.145-154, 2006 (Released:2006-03-08)

参考文献数

15

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This paper proposes a method for creating the viewers' side annotations that reflect viewers' attentions on TV dramas. Internet bulletin boards are filled with large amount of viewers' dialogues concerning TV programs. Our approach is to extract the viewers' attention embedded in these dialogues and express them in the form of the graphical structures called attention graphs. The attention graphs act as viewers' side annotations. Viewers' side annotations assist in providing viewers with hints to locate their favorite scenes in full-length TV programs. In general, Internet bulletin boards are described without any particular order and are expressed in a poor grammatical manner. Our approach is to statistically recognize the notable frequencies of the words which represent viewers' attentions out from such unstructured documents. Attention graphs are the outcome of this approach. Attention graphs are evaluated by three types of tests. The test results demonstrate that attention graphs sufficiently act as viewers' side annotations, in terms of pointing out which scene the viewers pay attention to and clarifying how deeply viewers are impressed by the scenes.