In this paper we consider processing entity join queries in a wide area multidatabase environmen t where the query processing cost is dominated by the cost of data transmission An entity join oper ation integrates tuples representing the same en tities from di erent relations in which inconsistent data may exist The semijoin technique has been successfully used in a distributed database system ...

The paper presents an algorithm for deformable image registration based on point features extracted from input images using the Harris corner detector. The correspondence between the points extracted from the different images is established using RANdom SAmple Consensus (RANSAC) method with the affine and perspective global transformation used to model the deformations. The initial corresponden...

Many tasks in robotics and automation require a cyclic exchange of energy between a machine and its envi ronment Since most environments are under actu ated that is there are more objects to be manip ulated than actuated degrees of freedom with which to manipulate them the exchange must be punctuated by intermittent repeated contacts In this paper we develop the appropriate theoretical setting ...

Sketching consists of a widely practised activity during early design phases of product in general and for user interface development in particular in order to convey informal specifications of the interface before actually implementing it. It is quite interesting to observe that designers as well as end users have abilities to sketch parts or whole of the final user interface they want, while ...

polychlorinated dibenzo-p-dioxins (PCDD), whereas 135 congeners belong to the group of polychlorinated dibenzofurans (PCDF). Figure 1 shows general structures of PCCD and PCDF. Dioxins are widespread contaminants with no specific usage and they are not produced. They mostly appear as unwanted byproducts of different industrial processes, combustion in waste incineration, and in the production o...

This thesis investigates several issues in data and computation modeling for scientific problem solving envi-ronments (PSEs). A PSE is viewed as a software system that provides (i) a library of simulation components,(ii) experiment management, (ii) reasoning about simulations and data, and (iv) problem solving abstrac-tions. Three specific ideas, in functionalities (ii)-(iv), form t...

The main concern of thi s paper i s t he det ect i on of double-cont act con gur at i ons f or s ome pol ygons movi ng i n t r ans l at i on i n a pol ygonal envi r onment . We r s t es t abl i s h s ome gener al pr oper t i es about s uch con gur at i ons , and gi ve condi t i ons of exi s t ence of doubl econt act s f or two or t hr ee object s . We deduce an al gor i t hm det ect i ng s uch ...

Ground calibration targets (GCTs) play a vital role in atmospheric correction of satellite sensor data in the optical region, but selecting suitable targets is a subjective and timeconsuming task. This paper describes a method to automatically select suitable GCTs, using a combination of remotely sensed multispectral and topographic data. Desirable characteristics for GCTs sites were identified...

Automatic program execution control is a demanding tool for heteroge neous environments due to the variable availability of processors and network band width Issues such as load distribution have to be re analyzed since strategies developed for homogeneous machines fail to optimize the computation time in heterogeneous net works The nal user should not be involved in deciding which machines sho...

This paper looks at a data set, called the SHARE 2010 collect, that has been designed to analyze the various impacts of illumination change on materials. Similar fabric materials were placed on different backgrounds where spectral signatures were analyzed to determined impacts of background adjacency. Hyperspectral, multispectral, and LiDAR modalities were used to image the panels in the above ...