Bootstrapped Discovery and Ranking of Relevant Services and Information in Context-aware Systems
Journal Title: EAI Endorsed Transactions on Context-aware Systems and Applications - Year 2015, Vol 2, Issue 5
Abstract
A context-aware system uses context to provide relevant information and services to the user, where relevancy depends on the user’s situation. This relevant information could include a wide range of heterogeneous content. Many existing context-aware systems determine this information based on pre-defined ontologies or rules. In addition, they rely on users’ context history to filter it. Moreover, they often provide domain-specific information. Such systems are not applicable to a large and varied set of user situations and information needs, and may suffer from cold start for new users. In this paper, we address these limitations and propose a novel, general and flexible approach for bootstrapped discovery and ranking of heterogeneous relevant services and information in context-aware systems. We design and implement four variations of a base algorithm that ranks candidate relevant services, and the information to be retrieved from them, based on the semantic relatedness between the information provided by the services and the user’s situation description. We conduct a live deployment with 14 subjects to evaluate the efficacy of our algorithms. We demonstrate that they have strong positive correlation with human supplied relevance rankings and can be used as an effective means to discover and rank relevant services and information. We also show that our approach is applicable to a wide set of users’ situations and to new users without requiring any user interaction history.
Authors and Affiliations
Preeti Bhargava, James Lampton, Ashok Agrawala
Keywords
Related Articles
- EP ID EP45761
- DOI http://dx.doi.org/10.4108/eai.22-7-2015.2260179
- Views 277
- Downloads 0
An Introduction to the Book Titled “Formal and Practical Aspects of Autonomic Computing and Networking: Specification, Development and Verification”
Dr. Phan Cong Vinh, Nguyen Tat Thanh University in Vietnam, introduces the book titled “Formal and Practical Aspects of Autonomic Computing and Networking: Specification, Development and Verification” edited by hi...
Toward Modeling and Reasoning with Words Based on Hedge Algebra
In this paper, we introduce a method for reasoning with words based on hedge algebra using linguistic cognitive map. Our computing method consists of static and dynamic reasoning. In static reasoning, inferring on causal...
Highlighted Activities of ICCASA 2015
The Fourth International Conference on Context-Aware Systems and Applications (ICCASA 2015) [1] is jointly organized by EAI, Nguyen Tat Thanh University (NTTU), and Ba Ria-Vung Tau University (BRVTU) and endorsed by the...
The Approach of Applying Augmented Reality Application with Infographic for Supporting Health Care
There are more and more people can access the technology, digital divide has been reduced over the years. In this paper intend to clarify and demonstrated how Thailand want to apply the trendy and advance technology to p...
Highlighted Activities of ICTCC 2016
The Second International Conference on Nature of Computation and Communication (ICTCC 2016) is jointly organized by EAI, Nguyen Tat Thanh University (NTTU), and Kien Giang University (KGU) and endorsed by the European Al...