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Chen Zhang, Ming Tang and Yehua Sheng
Sketch maps are an abstract and conceptual expression of humans? cognition of geographic space. Humans perceive geographical space at different spatial scales. However, few researchers have considered the spatial relationships of geographic elements in s...
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Wenjing Yuan, Lin Yang, Qing Yang, Yehua Sheng and Ziyang Wang
Archaeological site text is the main carrier of archaeological data at present, which contains rich information. How to efficiently extract useful knowledge from the massive unstructured archaeological site texts is of great significance for the mining a...
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Xiangqiang Min, Dieter Pfoser, Andreas Züfle and Yehua Sheng
The range query is one of the most important query types in spatial data processing. Geographic information systems use it to find spatial objects within a user-specified range, and it supports data mining tasks, such as density-based clustering. In many...
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Yufeng He, Yehua Sheng, Yunqing Jing, Yue Yin and Ahmad Hasnain
Unstructured geo-text annotations volunteered by users of web map services enrich the basic geographic data. However, irrelevant geo-texts can be added to the web map, and these geo-texts reduce utility to users. Therefore, this study proposes a method t...
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Yi Huang, May Yuan, Yehua Sheng, Xiangqiang Min and Yuwei Cao
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