Perceptual Components for Context Aware Computing

Crowley, James L.; Coutaz, Joëlle; Rey, Gaeten; Reignier, Patrick

doi:10.1007/3-540-45809-3_9

Cited by 96 publications

(89 citation statements)

References 20 publications

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“…That is, context shares references and relations to clarify the meaning of phrases. 34 Later, context extended beyond documents toward forming communication by which individuals weave their experiences within their environment to provide their experiences with meaning. 35 Given the widespread use of context in various disciplines such as linguistics, philosophy, computer science, and GIScience, what context comprises and defines have been controversial and debated.…”

Section: Definition Of Contextmentioning

confidence: 99%

“…It specifies the elements that must be collected to model a situation. 34 Context provides information regarding the present status of people (individuals and groups), places (indoors and outdoors), and things (physical objects and computing devices) in the environment. For example, an individual's situation can be characterized by the contexts of the individual's profile, the individual's surroundings, the individual's social interactions, the individual's activity, etc.…”

Section: Definition Of Contextmentioning

confidence: 99%

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Context‐aware movement analytics: implications, taxonomy, and design framework

Sharif

Alesheikh

2017

WIREs Data Min & Knowl

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Movement of an entity is greatly affected by its internal and external contexts. Such consequential influence has created new paradigms for context-aware movement data mining and analysis. The significance of incorporating contextual information and movement data is becoming quite evident because of the growing interest in context-aware movement analysis. Despite such importance, there is limited consensus among researchers on the definition of context and context-aware system design in movement studies. Therefore, this paper comprehensively reviews current concepts of context and provides a definition and a taxonomy for context in movement analysis. The paper proceeds by providing a definition of context-aware systems in the movement area after a complete review and comparison of the present definitions present in the literature. Inspired by related works, the paper further suggests a holistic three-layer design framework tailored to context-aware systems in movement studies to examine in greater depth the techniques applied during the design stages. The paper outlines the challenges and emergent issues in future research directions in context-aware movement analysis. The present study is an attempt to bridge the gap between solely using context and developing context-aware systems, thus paving the way for further research in movement applications. © 2017 Wiley Periodicals, Inc. How to cite this article:WIREs Data Mining Knowl Discov 2018Discov , 8:e1233. doi: 10.1002Discov /widm.1233 INTRODUCTIONM ovement is intrinsically a continuous phenomenon and is normally recorded as discrete snapshots at different temporal resolutions. The three fundamental sets pertinent to movement are space S (i.e., set of locations/places), time T (i.e., set of instants/intervals), and object O (i.e., set of entities). 1 In this paper, by movement we mean the change in the spatial location of one or more entities (e.g., people, animals, and vehicles) over time, not a change in entities' geometries (e.g., an individual's body parts). Such changes can be represented as a function μ: T ! S, which maps any time to a location in space. The purpose of analyzing movement data in the majority of research fields (e.g., geography, ecology, sociology, and transportation) has focused on the development of insights into the behavior of moving entities. However, the movement behavior of entities is generally associated with their internal states and external factors. 2 In other words, understanding entities' movement greatly depends on recognizing the characteristics attributed to the entity itself (e.g., the entities' purposes and intentions for movement, the entities' perceptions of space) as well as the discovery of geographical circumstances during the movement (e.g., weather conditions and traffic). We, respectively, term these influential variables internal and external contexts in this paper. of 19Because of the progress in sensing, imaging, tracking, and navigation technologies and infrastructures in recent years, unprecedented amount...

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Section: Definition Of Contextmentioning

confidence: 99%

Section: Definition Of Contextmentioning

confidence: 99%

Context‐aware movement analytics: implications, taxonomy, and design framework

Sharif

Alesheikh

2017

WIREs Data Min & Knowl

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“…Composed of "con" (with) and "text", context refers to the meaning that must be inferred from the adjacent text. As a result, to be operational, context can only be defined in relation to a purpose, or finality (Crowley et al, 2002). For the purpose of this study, the context of use of an interactive system is defined by three classes of entities:…”

Section: Context Of Usementioning

confidence: 99%

A Unifying Reference Framework for multi-target user interfaces

Calvary¹,

Coutaz²,

Thévenin

et al. 2003

Interacting with Computers

Self Cite

687

422

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This paper describes a framework that serves as a reference for classifying user interfaces supporting multiple targets, or multiple contexts of use in the field of context-aware computing. In this framework, a context of use is decomposed in three facets: the end users of the interactive system, the hardware and software computing platform with which the user have to carry out their interactive tasks and the physical environment where they are working. Therefore, a context-sensitive user interface is a user interface that exhibits some capability to be aware of the context (context awareness) and to react to changes of this context. This paper attempts to provide a unified understanding of context-sensitive user interfaces rather than a prescription of various ways or methods of tackling different steps of development. Rather, the framework structures the development life cycle into four levels of abstraction: task and concepts, abstract user interface, concrete user interface and final user interface. These levels are structured with a relationship of reification going from an abstract level to a concrete one and a relationship of abstraction going from a concrete level to an abstract one. Most methods and tools can be more clearly understood and compared relative to each other against the levels of this framework. In addition, the framework expresses when, where and how a change of context is considered and supported in the context-sensitive user interface thanks to a relationship of translation. In the field of multi-target user interfaces is also introduced, defined, and exemplified the notion of plastic user interfaces. These user interfaces support some adaptation to changes of the context of use while preserving a predefined set of usability properties.

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“…A context is represented by a network of situations [8]. A situation refers to a particular state of the environment and is defined by a configuration of entities, roles and relations.…”

Section: The Context Modelmentioning

confidence: 99%

An Architecture for Ubiquitous Applications

2007

Proceedings of the 1st International Joint Workshop on Wireless Ubiquitous Computing

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Abstract. This paper proposes a framework intended to help developers to create ubiquitous applications. We argue that context is a key concept in ubiquitous computing and that, by nature, a ubiquitous application is distributed and needs to be easily deployable. Thus we propose an easy way to build applications made of numerous modules spread in the environment and interconnected. This network of modules forms a permanently running system. The control (installation, update, etc.) of such a module is obtained by a simple, possibly remote, command and without requiring to stop the whole system. We ourselves used this architecture to create a ubiquitous application, which we present here as an illustration.

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Perceptual Components for Context Aware Computing

Cited by 96 publications

References 20 publications

Context‐aware movement analytics: implications, taxonomy, and design framework

Context‐aware movement analytics: implications, taxonomy, and design framework

A Unifying Reference Framework for multi-target user interfaces

An Architecture for Ubiquitous Applications

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