Context representation and fusion: advancements and opportunities.
Context representation and fusion: advancements and opportunities.
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DOI：
10.3390/s140609628
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发表时间：
2014-05-30
期刊：
影响因子：
--
通讯作者：
Lee S
中科院分区：
文献类型：
--
作者：
Khattak AM;Akbar N;Aazam M;Ali T;Khan AM;Jeon S;Hwang M;Lee S
上下文感知系统的可接受性和可用性使其在各个领域得到了广泛的应用，也引起了上下文感知计算领域研究人员的关注。使用户上下文信息可用于这样的系统是关注的中心。然而，很少有人强调上下文表示和上下文融合的过程，这是上下文感知系统的组成部分。上下文表示和融合有助于识别一个数据源对另一个数据源的依赖性/关系，以更好地理解用户上下文。当数据来自不同性质的异构源（如传感器、用户配置文件和社交互动）以及不同的时间戳时，问题就变得更加严重。上下文表示和融合的过程都以这样或那样的方式进行，然而，它们没有被明确地讨论用于实现上下文感知系统。换句话说，大多数上下文感知系统低估了上下文表示和融合的重要性。这项研究明确地集中在上下文表示和融合过程的重要性，并简化了它们在上下文感知系统的设计和开发的整体架构中的存在。本研究也着重探讨上下文表示与融合在上下文感知系统中的各种应用。本文对这两种方法的研究进展及其应用进行了综述。未来的研究方向（挑战）也强调需要适当的关注，以实现上下文感知系统的目标。
The acceptance and usability of context-aware systems have given them the edge of wide use in various domains and has also attracted the attention of researchers in the area of context-aware computing. Making user context information available to such systems is the center of attention. However, there is very little emphasis given to the process of context representation and context fusion which are integral parts of context-aware systems. Context representation and fusion facilitate in recognizing the dependency/relationship of one data source on another to extract a better understanding of user context. The problem is more critical when data is emerging from heterogeneous sources of diverse nature like sensors, user profiles, and social interactions and also at different timestamps. Both the processes of context representation and fusion are followed in one way or another; however, they are not discussed explicitly for the realization of context-aware systems. In other words most of the context-aware systems underestimate the importance context representation and fusion. This research has explicitly focused on the importance of both the processes of context representation and fusion and has streamlined their existence in the overall architecture of context-aware systems’ design and development. Various applications of context representation and fusion in context-aware systems are also highlighted in this research. A detailed review on both the processes is provided in this research with their applications. Future research directions (challenges) are also highlighted which needs proper attention for the purpose of achieving the goal of realizing context-aware systems.
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影响因子：
2
作者：
Anderson, Nicole
通讯作者：
Anderson, Nicole
影响因子：
--
作者：
Dey, Anind K.
通讯作者：
Dey, Anind K.
DOI：
10.1109/98.626984
发表时间：
1997-10-01
期刊：
IEEE PERSONAL COMMUNICATIONS
影响因子：
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作者：
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通讯作者：
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影响因子：
5.3
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通讯作者：
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影响因子：
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