Given a 3D space where should be supervised and a group of mobile sensor actor nodes with limited sensing and communicating capabilities, this paper aims at proposing a distributed self-deployment algorithm for agents to cover the space as much as possible by considering non-uniform sensing coverage degree constraint of environment while preserving connectivity. The problem is formulated as cov...

Given a test criterion, the number of test-sets satisfying the criterion may be very large, with varying fault detection effectiveness. This paper presents an experimental evaluation of the variation in fault detection effectiveness of all the test-sets for a given control-flow test criterion and a Boolean specification. The exhaustive experimental approach complements the earlier empirical stu...

For a given test criterion, the number of test-sets satisfying the criterion may be very large, with varying fault detection effectiveness. In recent work [29], the measure of variation in effectiveness of test criterion was defined as ‘tolerance’. This paper presents an experimental evaluation of tolerance for control-flow test criteria. The experimental analysis is done by exhaustive test-set...

Sensor-based mobile robot coverage path planning (MRCPP) problem is a challenging problem in robotic management. We here develop a genetic algorithm (GA) for MRCPP problems. The area subject to coverage is modeled with disks representing the range of sensing devices. Then the problem is defined as finding a path which runs through the center of each disk at least once with minimal cost of full ...

We propose a specific way to represent the user opinion content in forums and blogs, focusing on user concerns about product qualities and features. The content is subject to inversion so that these concerns become primary entry points for browsing and search, to increase the efficiency of user recommendation. User concern is defined syntactically, and semantic means of extraction and grouping ...

the global investigation of disasters in recent years shows that their number has increased annually and the number of affected people and costs of disasters are increasing

OBJECTIVES We analyzed the extent to which comparative effectiveness research (CER) organizations share terms for designs, analyzed coverage of CER designs in Medical Subject Headings (MeSH) and Emtree, and explored whether scientists use CER design terms. METHODS We developed local terminologies (LTs) and a CER design terminology by extracting terms in documents from five organizations. We d...