Shlomo Zilberstein Computer Science Department University of Massachusetts Amherst, MA 01003 U.S.A. [email protected] Abdel-Illah Mouaddib CRIL-IUT de Lens-Universit e d'Artois Rue de l'universit e, S. P. 16 62307 Lens Cedex France [email protected] Abstract Progressive processing is a model of computation that allows a system to tradeo computational resources against the qual...

Underwater applications of photogrammetric measurement techniques usually need to deal with multimedia photogrammetry aspects, which are characterized by the necessity of handling optical rays that are refracted at interfaces between optical media with different refractive indices according to Snell's Law. This so-called multimedia geometry has to be incorporated into geometric models in order ...

Activities such as clinical investigations or financial processes are subject to regulations to ensure quality of results and avoid negative consequences. Regulations may be imposed by multiple governmental agencies as well as by institutional policies and protocols. Due to the complexity of both regulations and activities there is great potential for violation due to human error, misunderstand...

Sponsored search accounts for 40% of the total online advertising market. These ads appear as ordered lists along with the organic (regular) search results in search engine results pages. There is conflicting evidence regarding the impact of organic search results on the sponsored search especially when there is an overlap in the results. We evaluate the impact of advertiser’s link as well as t...

Many low level visual computation problems such as focus, stereo, etc. can be formulated as problems of extracting one or more parameters of a non-stationary transformation between two images. Because of the non-stationary nature, nite-width windows are widely used in various algorithms to extract spatially local information from images. While the choice of window width has a very profound impa...

In mobile ad hoc peer-to-peer (M-P2P) networks, economic models become a necessity for enticing non-cooperative mobile peers to provide service. M-P2P users may issue queries with varying constraints on query response time, data quality of results and trustworthiness of the data source. Hence, we propose ConQuer, which is an economic incentive model for the efficient processing of constraint qu...

IEEE 802.15.4 Low Rate Wireless Personal Area Network (LR-WPAN) is developed for emerging applications for industrial automation, home networking, wireless sensor networks, etc. In this paper, we propose a new scheme to enhance IEEE 802.15.4 in order to enable the fast delivery of packets, which announce the emergent situations or events of the network. With the parameter tuning of the legacy I...

In a vision system, every task needs that the operators to apply should be « well chosen » and their parameters should be also « well adjusted ». The diversity of operators and the multitude of their parameters constitute a big challenge for users. As it is very difficult to make the « right » choice, lack of a specific rule, many disadvantages appear and affect the computation time and especia...

Anytime algorithms, whose quality of results improves gradually as computation time increases, provide useful performance components for timecritical planning and control of robotic systems. In earlier work, we introduced a compilation scheme for optimal composition of anytime algorithms. In this paper we present an implementation of a navigation system in which an off-line compilation process ...

Today's systems for Content-Based Image Retrieval (CBIR) suffer from several drawbacks: First, user interfaces are much too complicated for average users. Second, the quality of results tends to be low. Finally, querying performance with often long reply times is unsatisfactory. We have developed a model for CBIR searches intended to overcome these drawbacks where the user has to select only on...