Showing papers by "David Martin published in 2016"

EXISTStential Aspects of SPARQL.

Abstract: The SPARQL 1.1 Query Language [1] permits patterns inside FILTER expressions using the EXISTS construct, specified by using substitution. Substitution destroys some of the aspects of SPARQL that make it suitable as a data access language. As well, substitution causes problems in the SPARQL algebra and produces counterintuitive results. Fixing the problems with EXISTS is best done with a completely different definition that does not use substitution at all.

The Segregated City of Jos and Its Resultant Residential Property Value Pattern

Abstract: Residential segregation could be regarded as a process whereby two or more distinct communities who formerly lived together separate from one another due to many factors. Residential segregation is not only applicable to small communities but rather to a larger region. As a result of the ongoing civil unrest that engulfed the city of Jos, there has been a process of residential mobility and relocation among people of different faith. Stratified random sampling was employed in order to generate data from both Muslim’s and Christian’s residential neighbourhoods. A combination of self-administered questionnaires and semi-structured interview were deemed most suitable as data collection tools for this research due to the advantages obtained from both approaches. A total of 1000 questionnaires were administered to the respondents. Out of 1000 questionnaires administered to the respondents, 876 valid responses were used to analyse the information pertaining to the effect of intangible location attributes on residential property value in Jos city. Most of the data presented using simple percentage distribution tables were also complimented with discussion and narration for data that are not measurable in nature. Research findings uncovered that intangible location attributes play a major role in determining the value of residential accommodations in the study area. Land and landed property value could be ascertained through many indicators as revealed by the existing literatures. Relating this to rental values of residential properties, it was found that the rental values of such properties maintains a steady upward increase since when this conflicts started in the study area. The implication is that the intangible location attributes have direct influence on rent passing and sales value on residential properties in the study area. Keywords: Property Value, Residential Pattern, Residential Mobility, Residential Segregation and Violence