E-mail:[e-mail]

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• E-mailliujg004_at_gmail.com
• 15202121269

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Wikipedia??????????

• Systems science is an interdisciplinary field
  of science that studies the nature of complex
  systems in nature, society, and science. It aims
  to develop interdisciplinary foundations, which
  are applicable in a variety of areas, such as
  engineering, biology, medicine and social
  sciences.

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Web of science?????????

• ?? TOWARD FORMAL FOUNDATIONS OF TELEOLOGICAL
  SYSTEMS SCIENCE ?? SACHS WM????? GENERAL
  SYSTEMS   ? 21   ? 145-153   ??? 1976

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Wikipedia??????????

• In the context of network theory, a complex
  network is a network (graph) with non-trivial
  topological featuresfeatures that do not occur
  in simple networks such as lattices or random
  graphs. The study of complex networks is a young
  and active area of scientific research inspired
  largely by the empirical study of real-world
  networks such as computer networks and social
  networks.

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1. 2000-2010???????????????????????
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1. 2000-2010????complex networks?Systems
Science?????SCI???
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Citespace??????????

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  cluster.cis.drexel.edu/cchen/citespace??????
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2010?3??Complex Networks????????
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Bing-Hong Wang
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(No Transcript)
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2.?????????

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Why recommend
We face too much data and sources to be able to
find out those most relevant for us. Indeed, we
have to make choices from thousands of movies,
millions of books, billions of web pages, and so
on. Evaluating all these alternatives by
ourselves is not feasible at all. As a
consequence, an urgent problem is how to
automatically find out the relevant objects for
us.
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Collaborative filtering algorithm
Herlocker et al., ACM Trans. Inf. Syst. 22 5-53
(2004)
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Content-based algorithm
The user will be recommended items similar to the
ones this user preferred in the past
Pazzani Billsus, LNCS 4321 325-341 (2007)
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Structure-based algorithms
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Hybrid algorithm
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(No Transcript)
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