In this paper we study the Target Set Selection problem, a fundamental problem in computational social choice, from a parameterized complexity perspective. Here for a given graph and a threshold for each vertex the task is to find a set of active vertices that activates whole graph. A vertex becomes active if the number of activated vertices in its neighborhood is at least its threshold. We giv...

The interplay between population structure and natural selection is an area of great interest. It is known that certain types of population subdivision do not alter fixation probabilities of selected alleles under genic, frequency-independent selection. In the presence of dominance for fitness or frequency-dependent selection these same types of subdivision can have large effects on fixation pr...

This paper presents a novel video in video watermarking algorithm using Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD) based on block selection procedure. Here the level of authentication can be increased by using the two watermarks: one is the original watermark video and the other is the owner’s fingerprint. These two watermarks are embedded into the cover video based...

This paper focuses on selection techniques for best correction of misspelt words at the lexical level. Spelling errors are introduced by either cognitive or typographical mistakes. A robust spelling correction algorithm is needed to cover both cognitive and typographical errors. For the most effective spelling correction system, various strategies are considered in this paper: ranking heuristic...

In this paper we apply the selection and optimization technique of Frederickson and Johnson to a number of geometric selection and optimization problems, some of which have previously been solved by parametric search, and provide eecient and simple algorithms. Our technique improves the solutions obtained by parametric search by a log n factor. For example, we apply the technique to the two-lin...

The paper introduces a new situational method for Web applications design. The purpose of the approach is to respond to the following limits of web development methods: they do not cover all design aspects and they lack of flexibility and guidance. The approach consists on the construction, on the fly, of new methods based on existing methods components, that are redefined and stored in method ...

and planting of the next crop in that field. Each soil and residue-disturbing operation must be considered when evaluating the amount of residue that will remain for erosion control. (For a more complete listing of implements and residue amounts remaining, as well as more information about the influence of various factors on residue cover, Conclusions Results of this research project indicate t...

Acquisition modeling for direct mail insurance has the unique challenge of targeting responsive customers while minimizing risk. In addition, factors such as the probability of a paid premium and customer profitability all effect the Lifetime Value of a prospect. This presentation will detail the steps to develop a Lifetime Value, which can used to optimize the selection of prospects. Topics co...

In this paper we proposed a novel video watermarking technique using Discrete Wavelet Transform and Singular Value Decomposition based on subband selection procedure. To increase the level of authentication, the two watermarks are used: one is the original watermark and the other is the owners’ fingerprint. These two watermarks are embedded into the cover video based on the subband selection sc...

The automatic segmentation of land cover features, within very high resolution (VHR) satellite imagery, is a complex task which is important to geo-spatial applications such as urban planning, crop monitoring and change detection. The dynamic grey-value variety of VHR imagery, along with environmental interference factors, such as cloud cover and poor lighting, impede the automation of land cov...