The conventional representation of location information is hard to understand for human in location-aware computing, but the natural language is a beneficial supplement.
讨论位置感知计算中定位信息表达存在的不足，引入自然语言描述作为补充。
Compared with the conventional parse tree, this representation not only consumes less space, but also is faster for structure matching.
这种表示比传统分析树不仅空间较小，而且进行结构匹配的速度快。
Clustering for symbolic data is an important extension of conventional clustering, and interval representation for symbolic data is often used.
符号聚类是对传统聚类的重要扩展，而区间数据是一类常见的符号数据。
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