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Information systems become more accessible as a service offered to anybody, anywhere, at any time, via almost any device and computing platform. The continuous growth and the heterogeneity of these devices induce diverse user experiences depending on the device and challenge designers to creating methods and tools for engineering usable, yet accessible, information systems. Instead of repeating a...
Schema matching supports data integration by establishing correspondences between the attributes of independently designed database schemas. In recent years, various tools for automatic pair-wise matching of schemas have been developed. Since the matching process is inherently uncertain, the correspondences generated by such tools are often validated by a human expert. In this work, we consider scenarios...
▪ Several Web-driven Applications in Pacific • Progress Rollbase, Progress DataDirect Cloud, Easyl, OE-BPM ▪ Presence of dynamic objects in the UI ▪ Database-driven applications • Table-based output screens • Dynamic URLs get generated with database sequence ▪ Frequent changes to UI in Agile environment • Changes can be expected on every sprint ▪ Requirement to be extensible for other future products.
In this paper we propose a framework to adapt the user interface (UI) of mobile computing devices like smartphones or tablets, based on the context or scenario in which user is present, and incorporating learning from past user actions. This will allow the user to perform actions in minimal steps and also reduce the clutter. The user interface in question can include application icons, menus, buttons...
This paper presents the implementation of an efficient retrieval system for medical images. By combining ontology with the use of low level feature extraction we were able to retrieve meaningful information from the knowledge base. We also successfully bridged the gap between the low level feature and the high level semantics by applying the image processing technique to extract the low level features...
This paper presents an overview of the new developments carried out to offer a reliable and efficient support for different computing infrastructures in the Kepler workflow orchestration system. The aim of the work is to help scientists to transparently use these infrastructures regardless of the underlying middleware. We introduce new complex workflow scenarios developed in the context of the EU...
Testing a database application is a challenging process where both the database and the user interaction have to be considered in the design of test cases. This paper describes a specification-based approach to guide the design of test inputs (both the test database and the user inputs) for a database application and to automatically evaluate the test adequacy. First, the system specification of the...
In this paper, we investigate the possibilities of interpreting user behaviour in order to learn his/her preferences. UP Comp, a PHP component enabling use of user preferences for recommendation, is described. UP Comp is a standalone component that can be integrated into any PHP web with only basic knowledge of PHP, HTML and SQL. The methods of user behaviour interpretation are evaluated on a real...
This paper presents an end-to-end framework to manage user-centric services through daily events. In contrast to existing service discovery, selection and composition approaches, the proposed framework addresses the management issue from a new perspective by firstly learning end-user's intent through daily events, while recommending relevant functionalities to the user; and then enabling the user...
Widget aggregators such as iGoogle and Netvibes are broadly adopted by the mass market. They enable end-users to personalize their environment with their preferred services (Widgets). However, the usage in an enterprise context is not yet investigated. In this paper, we firstly show that in addition to personalization capability, the integration of business processes should be considered. Secondly,...
In this paper, we consider the situation where a fuzzy query is submitted to distributed data sources. In order to save bandwith and processing cost, we propose a technique whose aim is to forward the query to the most relevant sources only. It is assumed that a fuzzy summary of every data source is available, and the approach we propose consists in estimating the relevance of a source wrt to a user...
Advances in wireless communication and powerful computing technologies will eventually lead to a digital environment in which computing functionality will be embedded in all kinds of objects, which are capable of recognizing and responding to individual needs in a seamless, unobtrusive, and often invisible way. Such a vision was coined Ambient Intelligence (AmI), whose aim is to bring information...
The development of Internet calls urgently for the ability to deal with massive textually represented geographical knowledge. Digital Gazetteer Service (DGS) plays a foundational role in this process. To help users to check and confirm the proper places quickly and efficiently, one of the key points of DGS is to rank place names according to their satisfaction with query conditions set by users. Match...
The problem of biometric menagerie, first pointed out by Doddington et al. (1998), is one that plagues all biometric systems. They observe that only a handful of clients (enrolled users in the gallery) actually contribute disproportionately to recognition errors. While prior literature attempting to reduce this effect focuses on either client-specific score normalization or client-specific decision...
Improving data quality is a time-consuming, laborintensive and often domain specific operation. A recent principled approach for repairing dirty database is to use data quality rules in the form of database constraints to identify dirty tuples and then use the rules to derive data repairs. Most of existing data repair approaches focus on providing fully automated solutions, which could be risky to...
This paper presents an authoring tool which makes possible to create data intensive Web services in a graphical manner. It enables people without programming skills to develop this category of Web Services. Besides addressing the workflow for using this tool, its technological background is presented and discussed.
Mining information from very large databases poses numerous challenges. In fact, systems that can mine such voluminous databases are increasingly desirable. In this context, we propose a generic approach of database summarization that takes into account the user's interest topic. Innovation in our work consists in the generation of a set of database summaries having different levels of granularity...
Improvements in Internet-based database connectivities and interactive interfacing allow for real-time interaction between users. While, Internet-based learning platforms facilitate, in general, exchange of text, image, and movie files, academic education in design-oriented domains needs support in knowledge exchange with respect to design related issues such as 2D drafting and 3D-4D modeling. In...
The European2228319 research project ??C-Cast?? (context-aware content casting) aims at providing an end-to-end system design for context-aware services and content provisioning. The project does not limit itself to reasoning but embraces also efficient service provisioning to user groups detected and formed according to the inferred user context. This paper presents the architecture components related...
As mobile smart phones are being equipped with multiple radio interfaces and sensors, they are becoming capable of continuously collecting context information related to the users and the environment. This information can be utilized in different applications and services for providing rich, context-aware experiences. In this paper, we present a client-server platform that enables life logging, via...
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