最后讨论了位置相关查询处理过程，位置转换、位置粒度调整、位置误匹配问题。
Finally, we discussed location dependent query processing, location translation, the location granularities adjusting and the location mismatch problem.
在位置相关查询(LDQ)中由于用户的移动性和数据的位置相关性，给缓存替换策略带来了新的挑战。
Because of the user's mobility and the location dependency of data, new challenge has been brought to cache replacement strategy for location Dependent Query (LDQ).
在库存记录的例子中，用户希望看到搜索查询的所有匹配项的摘要，并列出相关的存放位置和数量。
In the inventory case, users are looking for a summary of all items that match the search query, with the associated location and count.
学习圈：这些是专门面向学生的社交网络，其中提供了专门针对学生的学习区域，与位置相关的查询和一些高级的研究机会。
Study Circles: These are social networks dedicated for students where they can have areas dedicated to student study topics, placement related queries and advanced research opportunity gathering.
智能空间中，位置感知应用不仅需要位置相关的快速查询服务，而且需要伺候式的空间事件服务。
In smart space, location-aware applications not only need rapid location-related query service, but also require proactive spatial event service.
当LD Q在系统中持续一段时间时就称为位置相关连续查询(LDCQ)。
LDQ that exists in the system for a period of time is called Location-DependentContinuous Query (LDCQ).
地理信息系统是指用于获取、存储、查询、综合、处理、分析和显示与地球表面位置相关的数据的计算机系统。
Geographic Information system is a computer system, which can obtain, store, query, integrate, transact, analyze and display the data about location of earth.
通过实验对比，PLAC比其他位置相关缓存替换策略更为有效地提高了缓存命中率，缩短了查询平均响应时间。
The contrast experiments show that the PLAC increases cache hit rate and shortens query average response time more effectively than other location dependent cache replacement strategies.
地理信息系统（GIS）是以地理信息数据为中心、计算机软硬件设施为平台、空间位置密切相关的信息查询分析为目的信息系统。
GIS is a kind of information system which takes geographical data as the center, computer softerware and hardware as the platform, and spatial location related query as the motive.
地理信息系统（GIS）是以地理信息数据为中心、计算机软硬件设施为平台、空间位置密切相关的信息查询分析为目的信息系统。
GIS is a kind of information system which takes geographical data as the center, computer softerware and hardware as the platform, and spatial location related query as the motive.
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