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Mizuki Oka
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Journal Articles
Publisher: Journals Gateway
Artificial Life (2020) 26 (1): 1–4.
Published: 01 April 2020
Journal Articles
Publisher: Journals Gateway
Artificial Life (2019) 25 (2): 168–177.
Published: 01 May 2019
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Web services are analogous to living ecosystems in nature, in that they form an artificial ecosystem consisting of many tags and their associated media, such as photographs, movies, and web pages created by human users. In biological ecosystems, we view a tag as a species and a human as a hidden environmental resource. Our study examines the evolution of web services, in particular social tagging systems, with respect to the self-organization of new tags. The evolution of new combinations of tags is analyzed as an open-ended evolution (OEE) index. Tag meaning is computed by types of associated tags, including tags that vary their meanings temporally, which, we argue, are examples of OEE.
Journal Articles
Publisher: Journals Gateway
Artificial Life (2016) 22 (3): 364–407.
Published: 01 August 2016
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We present a survey of the first 21 years of web-based artificial life (WebAL) research and applications, broadly construed to include the many different ways in which artificial life and web technologies might intersect. Our survey covers the period from 1994—when the first WebAL work appeared—up to the present day, together with a brief discussion of relevant precursors. We examine recent projects, from 2010–2015, in greater detail in order to highlight the current state of the art. We follow the survey with a discussion of common themes and methodologies that can be observed in recent work and identify a number of likely directions for future work in this exciting area.