Most of the protocols for enhancing the lifetime of wireless sensor networks (WSNs) are of a homogeneous nature in which all sensors have equal amount of energy level. In this paper, we study the effect of heterogeneity on the homogeneous protocols. The ALBPS and ADEEPS are the two important homogeneous protocols. We incorporate heterogeneity to these protocols, which consists of 2-level, 3-lev...

This paper presents a new approach for rotation, rescaling and occlusion invariant retrieval of the objects of a given database D. The objects are represented by means of many 2D views and each of them is occluded by several half-planes. The remaining visible parts (linear cuts) as well as the whole views are stored in a new database D’ and described by low-level features. Given a portion R of ...

This study explored the consistency and difference of teacher-, student selfand peer-assessment in the context of Web-based portfolio assessment. Participants were 72 senior high school students enrolled in a computer application course. Through the assessment system, the students performed portfolio creation, inspection, selfand peer-assessment; three teachers reviewed portfolios and evaluated...

Embedded system designs and simulations become tedious and time consuming due to the complexity of modern applications. Thus, languages allowing high level description, such as SystemC, are more and more used. We present in this paper a new methodology allowing scripting inside SystemC. We integrate both SystemC and Python within a single framework for system designs and simulations called Syst...

The purpose of stock portfolio selection is how to allocate the capital to a large number of stocks in order to bring a most profitable return for investors. In most of past literatures, experts considered the portfolio of selection problem only based on past crisp or quantitative data. However, many qualitative and quantitative factors will influence the stock portfolio selection in real inves...

a study was conducted to evaluate the effect of feeding different levels of protein to black baladi breed kids. weanling baladi kids (n=18; 75 to 90 days old) were selected and individually housed at our experimental farm. kids were divided randomly to one of the three treatments for 12 weeks. the three dietary treatments were: t1: control ration, formulated according to nrc to cover the protei...

Though there are some very positive aspects of a highly detailed model, there are also some significant drawbacks. A high level of detail is good in that it permits performance models to reflect microscopic behavior. For example, a detailed model can provide measurement of the number of loads that access the data cache in any particular cycle. This ability, however, comes at the cost of being a...

This paper discusses the challenges which mobile devices raised in terms of Performance Engineering and Perfomance Testing. Possible improvements and adaptions to increase the awareness of importance of both areas are presented.

A method for automatic detection and localization of faces on digital images is proposed. The method is based on learning by example and multi-resolution analysis of digital images. Special emphasis is put on the management of the learning data, in order to improve the performances. Various experimental results, obtained by using a Multi-Layer Perceptron (MLP) as a classier, are provided.