the paper presents an approach for automatically extracting views from a relational database schema, based on the knowledge of the application domain. In order to achieve such result, the possible contexts emerging fr...
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ISBN:
(纸本)9783540742548
the paper presents an approach for automatically extracting views from a relational database schema, based on the knowledge of the application domain. In order to achieve such result, the possible contexts emerging from the application domain are identified and, starting from the representation of the characterizing dimensions, a sequence of operations is applied to the schema to derive the portion of interest or, as we say, to tailor the schema with respect to each possible context. We introduce the tailoring operators as well as the method to compose partial views to obtain the final ones;a running example is used to lead the reader through the steps of the proposed methodology.
this paper describes the T-Stick, a new family of digital musical instruments. It presents the motivation behind the project, hardware and software design, and presents insights gained through collaboration with perfo...
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ISBN:
(纸本)9781450378376
this paper describes the T-Stick, a new family of digital musical instruments. It presents the motivation behind the project, hardware and software design, and presents insights gained through collaboration with performers who have collectively practised and performed withthe T-Stick for hundreds of hours, and with composers who have written pieces for the instrument in the context of McGill University's Digital Orchestra project. Each of the T-Sticks is based on the same general structure and sensing platform, but each also differs from its siblings in size, weight, timbre and range.
Ambient intelligent systems are context aware by perceiving and reasoning about their environment, they perceive the needs of their users and proactively respond to these needs by being context sensitive. Users do not...
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ISBN:
(纸本)9783540742548
Ambient intelligent systems are context aware by perceiving and reasoning about their environment, they perceive the needs of their users and proactively respond to these needs by being context sensitive. Users do not interact withthese systems by traditional means only, but also through behavioural interfaces. this combination of mixed initiative systems and unconventional interfaces puts strong requirements on the explanatory capabilities of any system. the work presented here focuses on explaining the behaviour of an ambient intelligent systems to its users. It demonstrates how explanations can be combined withcontext to deal withthe different types of explanations that are required for a meaningful interaction of a system and its users.
In e-commerce applications, no systematic research has been provided to evaluate if the use of a detailed and rich contextual representation improves the user modeling predictive performances. An underestimated issue ...
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ISBN:
(纸本)9783540742548
In e-commerce applications, no systematic research has been provided to evaluate if the use of a detailed and rich contextual representation improves the user modeling predictive performances. An underestimated issue is also evaluating if context could be inferred by existing customer data off-line, in spite of getting the customer involved on-line in the gathering process. In this paper, we address those problems, defining context as "the intent of" a customer purchase. To this aim, we collected data containing rich contextual information, hierarchically structured, by developing a special-purpose browser. the experimental results show that the finer the granularity of contextual information the better is the modeling of customers' behavior. Representing the context in a hierarchical structure is a necessary condition, for inferring the context off-line, but it's not a sufficient one.
contextual Graphs are a context-based formalism used in various real-world applications. they allow a uniform representation of elements of reasoning and of contexts for describing different human tasks such as diagno...
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ISBN:
(纸本)9783540742548
contextual Graphs are a context-based formalism used in various real-world applications. they allow a uniform representation of elements of reasoning and of contexts for describing different human tasks such as diagnosis and interpretation. the representation of reasoning by contextual Graphs supposes an efficient representation of the knowledge associated with a reasoning. Extending the previous view of (1) context relative to a focus, and (2) context as composed of external knowledge and contextual knowledge, in this paper we go a step further by proposing a description of the focus in terms of the instantiation of the contextual elements, which are drawn from domain knowledge. We present the results of this study in a real-world application that we are working on currently, namely the self-evaluation of drivers' behaviors in a situation presented within a large spectrum of contexts.
this paper is testing a DUAL-based model of memory. the model assumes decentralized representation of episodes as a coalition of agents and analogical transfer processes as the basis for memory reconstruction of our p...
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ISBN:
(纸本)9783540742548
this paper is testing a DUAL-based model of memory. the model assumes decentralized representation of episodes as a coalition of agents and analogical transfer processes as the basis for memory reconstruction of our past. It is a model of active reconstruction thereby allowing memory insertions and blending of episodes. the experiment explores the role of the degree of internal connectivity of the coalition representing the episode on the outcome of the reconstruction process. It demonstrates that the more the links between the elements of the episode are, the higher the number of details we recall, and the lesser the intruded elements and the context influence.
Current trend in scientific collaboration focuses on developing effective communication Web media. One of its objectives is to provide informal communication opportunities for collaborating scientists. this paper focu...
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ISBN:
(纸本)9783540742548
Current trend in scientific collaboration focuses on developing effective communication Web media. One of its objectives is to provide informal communication opportunities for collaborating scientists. this paper focuses on analyzing conversation structures of actual collaboration scenarios on the Web. the conversations analyzed model contextusing hierarchy of learning and communication tied to situated cognition to help understand how users induce communication protocols on the Web. the paper focuses on the analysis of the conversation structures that uses context to identify what could possibly make up a context and to help understand how contexts are punctuated.
Organizational models produced within computer science fields have proved to be effective communication tools in developing shared understandings of the design of organizations and systems. We argue that these models ...
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ISBN:
(纸本)9783540742548
Organizational models produced within computer science fields have proved to be effective communication tools in developing shared understandings of the design of organizations and systems. We argue that these models can also be valuable in capturing the actual implementation of organizations. However, this kind of usage requires the development of enterprise representations that (1) acknowledge the complexity of organizations and its agents and (2) are able of capturing the situated and dynamic behavior of organizational agents. this paper describes how engineering, cognitive and social approaches to context are integrated in a conceptual framework to model organizational agents and their contexts of interaction to address these issues. this integration is illustrated with examples from a case study.
contextual Graphs are a context-based formalism used in various real-world applications. they allow a uniform representation of elements of reasoning and of contexts for describing different human tasks such as troubl...
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ISBN:
(纸本)9783540742548
contextual Graphs are a context-based formalism used in various real-world applications. they allow a uniform representation of elements of reasoning and of contexts for describing different human tasks such as troubleshooting and interpretation. A contextual graph represents a task realization. Its paths represent the different ways of reaching this realization, each way corresponding to a practice developed by an actor realizing the task. In this paper, we revisit the classical distinction between prescribed and effective tasks, procedures versus practices, logic of functioning versus logic of use, etc. in the light of this formalism. We discuss the position of the practice model with respect to the task model using an example involving troubleshooting a problem with a DVD player and another example involving the collaborative construction of an answer, and place this within the context of some other applications developed in the formalism of contextual Graphs.
context-aware applications can satisfy users' information needs without consuming too much time in discovering information adaptive to users. In this paper, we propose a personalized information system to provide ...
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ISBN:
(纸本)9780769528670
context-aware applications can satisfy users' information needs without consuming too much time in discovering information adaptive to users. In this paper, we propose a personalized information system to provide more user-oriented information considering context information such as a personal profile with preferences, location, traffic condition, weather, time, event, and so on. Our system architecture is designed to support an effective execution usage on Web set-vices and client applications. We implement a map viewer using a shape type of map format files with Points of Interest(PoI) information. Also, our system can provide associated search results from relations between the objects usingcontext ontologies modeling created by the categorized layers of geospatial data.
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