Consider a rectangular art gallery divided into n rectangular rooms, such that any two rooms sharing a wall in common have a door connecting them. How many guards need to be stationed in the gallery so as to protect all of the rooms in our gallery? Notice that if a guard is stationed at a door, he will be able to guard two rooms. Our main aim in this paper is to show that Èn/2 ̆ guards are alway...

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...

Equal participation for people with special needs is an important objective in education politics. Governments have a strong emphasis on enabling education for all citizens. The trend of using e-learning both for on campus and remote delivery of students has the potential of enabling new opportunities for people who previously faced challenges following education. On the other hand, providing o...

Multimedia content covers the Web, and we should provide access to all people. For this reason, it is very important to take into account accessibility requirements in the player to avoid barriers and to ensure access to this multimedia content as well as their resources. One of the most frequent barriers is the technological obstacle: the necessity for the user to install the required plug-ins...

Purpose Against a backdrop in an increase the number of older people United Kingdom (UK) and amount travel per person for this age group, using railway is decline. The purpose paper to report on investigation first step towards ascertaining why through audits issues problems rolling stock station platforms. Design/methodology/approach Rolling were carried out by across rail network South West U...

Explicit syntax and implicit semantics of Web coding are typically addressed as distinct dominions in providing metrics for content accessibility. A more down-to-earth portrait about barriers and their impact on users with disabilities could be obtained whether any quantitative synthesis about number and size of barriers integrated measurements from automatic checks and human assessments. In th...

This article challenges dominant assumptions about disability and accessibility in tourism adopts a relational perspective to explore how collaborative can emerge through interpersonal interdependencies. We used polyphonic vignettes weave the personal stories of 17 people into two situated micronarratives that capture dynamic relations between with without visual impairments. Our findings sugge...

This paper summarizes the research of using open accessibility data for accessible travelling. With the aim of addressing the gap between users’ special needs and complex accessibility barriers in real world, we proposed a personalized accessible travelling framework based on open accessibility data for people with mobility impairments. This research mainly investigates the use of Linked Open D...