In this paper, we address the issues of maintaining sensing coverage and connectivity by keeping a minimum number of sensor nodes in the active mode in wireless sensor networks. We investigate the relationship between coverage and connectivity by solving the following two sub-problems. First, we prove that if the radio range is at least twice the sensing range, complete coverage of a convex are...

This article aims to identify how knowledge workers develop their own collaboration strategies and techniques for getting their work done in complex, dynamic knowledge intensive work environments. Three case studies have been conducted to explore the nature of routines in different collaborative working settings as they provide sufficient detail to better understand the actual state and problem...

This paper presents FrameNet’s approach to the representation of Support Verbs, as but one type of multiword expression (MWE) included in the database. In addition to motivating and illustrating FrameNet’s newly consistent annotation practice for Support Verb constructions, the present work advocates adopting a broad view of what constitutes a multiword expression.

A particularly simple Markov chain model for a reference string is described. The model, which is only slightly more complicated than the independent reference model, generates strings that have a locality property and that have a specified probability distribution of references over pages. Expressions are obtained for expected working-set size and expected working-set miss ratio. The of change...

This paper proposes an adaptive invalidate/update protocol for software distributed shared memory(DSM), which use the working-set notion of a conventional operating system as the criteria for determining whether to update or invalidate. The proposed protocol can adjust the amount of update messages as changing the value of working-set size. The proposed protocol was implemented in CVM[4], a sof...

In this paper, we demonstrate the impact of Multiword Expression (MWE) resources in the task of MWE recognition in text. We present results based on the Wiki50 corpus for MWE resources, generated using unsupervised methods from raw text and resources that are extracted using manual text markup and lexical resources. We show that resources acquired from manual annotation yield the best MWE taggi...

0 Getting Started 94 0.1 Installing Matita . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 0.2 Preparing a working directory . . . . . . . . . . . . . . . . . . . . . . 95 0.3 Matita interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 0.4 Browsing the library . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 0.5 Live DVD . . . . . . . . . . . . . . . . ....

Nowadays, enterprises cooperate more extensively with other enterprises during the entire product life cycle. Temporary alliances between various enterprises emerge such as those in Virtual Enterprises. Collaborative applications are demanded that enable enterprises to engage in such endeavors. This paper aims to present a framework with which collaborative applications can be characterized and...

The Virtual Company educational scenario engages students in a professional setting for working and learning. Students are enabled to develop competencies that are derived from professional practice. This allows us to use assessment strategies that are different from the practice in traditional educational settings. In the Virtual Company educational scenario the competence assessment procedure...

Introduction:     women's  employment  is one of the fundamental problems in breastfeeding. Studies have shown that after delivery, amount of milk is  equal in the mothers working and non-working. But  after several   months will be reduced markedly. Methods: In this study, with different departments was done coordination , and interviewed with the 351 mothers that had children under two years...