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Urban land price is a significant index of the social-economic development. It's very important to establish scientific and appropriate mathematic prediction model to forecast its change trend. The methods of Conventional prediction including trend line, Grey model and so on. For the systems with apparent fluctuation, such as the land price prediction, the(More)
To help developers understand and reuse programs, semantic queries on the source code itself is attractive. Although programs in heterogeneous languages are being controlled for collaborative software development, most queries supported by various source code repositories are based either on the metadata of the repositories, or on indexed identifiers and(More)
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