The Canto hypertext data model is characterized by a hierarchical schema mechanism that allows a predetermined, open-ended schema to be embedded in the hyperdocument. Canto uses two types of nodes: concept nodes, which provide organizational structure, and information nodes, which contain text and other data. The operations provided by the Canto Data Model are defined formally using the Z speci...

The standard C/C++ implementation of a spatial partitioning data structure, such as octree and quadtree, is often inefficient in terms of storage requirements particularly when the memory overhead for maintaining parentto-child pointers is significant with respect to the amount of actual data in each tree node. In this work, we present a novel data structure that implements uniform spatial part...

The present study aimed at investigating the influence of home, neighbourhood and school environmental factors on adolescents' engagement in self-reported extracurricular physical activity and leisure time sports and on MVPA objectively measured by accelerometers. Environmental factors were assessed using questionnaires. Gender specific hierarchical regression analyses were conducted, with demo...

Accessibility analysis, examining people’s ability to access facilities and destinations, is a fundamental assessment for transport planning, policy making, and social exclusion research. Dynamic accessibility which measures accessibility in real-time traffic environment has been an advanced accessibility indicator in transport research. It is also a useful indicator to help travelers to unders...

Optical correspondence networks connecting ship’s system introduces the heuristic way to deal with accessibility investigation interfacing boat's frameworks. The availabilities of individual parts have been figured, as the reason for the whole framework accessibility assessment. A few system accessibility structures and assurance situations are exhibited and the accessibility assessed. In view ...

Surfaces consisting of sub micron holes (0.420-0.765 μm) engineered into nanoparticle (12 nm) coatings were examined for marine antifouling behaviour that defines early stage settlement. Immersed surfaces were found to be resistant to a 5-hour attachment assay of Amphora coffeaeformis, a marine organism commonly found in abundance on fouled substrates such as foul-releasing paints and self-poli...

Social Media (SM) is increasingly being integrated with business information in decision making. Unique characteristics of social media (e.g. wide accessibility, permanence, global audience, recentness, and ease of use) raise new issues with information quality (IQ); quite different from traditional considerations of IQ in information systems (IS) evaluation. This paper presents a preliminary c...

This is a landmark book. For anyone interested in language, in dictionaries and thesauri, or natural language processing, the introduction, Chapters 14, and Chapter 16 are must reading. (Select other chapters according to your special interests; see the chapter-by-chapter review). These chapters provide a thorough introduction to the preeminent electronic lexical database of today in terms of a...

—Next Generation Networks (NGNs) are aiming to integrate different access technologies for the accessibility of heterogeneous platform under the control of IP protocol. In such a complex environment, the availability of high data rates, high bandwidth, security, and end-to-end QoS are major challenges. In this paper cross-layer localized mobility management based on Session Initiation Protocol...

Web accessibility has become an important issue since the dramatic rise in the use of the Web. Web accessibility deals with overcoming barriers users with disabilities face when trying to access information on Web sites. The U.S. has passed laws relating to Web accessibility to improve the usability of the Internet for disabled users. Technical advancements have improved assistive tools such as...