Browsing by Author "Rorissa, Abebe"
Now showing items 1-11 of 11
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An analysis of African e-government service websites
(Elsevier, 2010)In most African countries, compared to any other part of the world, the use of information and communication technologies such as those necessary to provide e-Government services is minimal. The continent was once labeled ... -
Benchmarking e-government: A comparison of frameworks for computing e-government index and ranking
(Elsevier, 2011)Countries are often benchmarked and ranked according to economic, human, and technological development. Benchmarking and ranking tools, such as the United Nation's e-Government index (UNDPEPA, 2002), are used by decision ... -
A bibliometric mapping of the structure of STEM education using co-word analysis
(John Wiley & Sons, Inc., 2013)STEM, a set of fields that includes science, technology, engineering, and mathematics; allied disciplines ranging from environmental, agricultural, and earth sciences to life science and computer science; and education and ... -
A comparative study of flickr tags and index terms in a general image collection
(John Wiley & Sons, Inc., 2010)Web 2.0 and social/collaborative tagging have altered the traditional roles of indexer and user. Traditional indexing tools and systems assume the top-down approach to indexing in which a trained professional is responsible ... -
Diffusion of scientific knowledge in agriculture: The case for Africa
(2014-01-22)Diffusion of scientific knowledge in the agriculture sector in Africa, primarily in sub Saharan African (SSA) countries, is dominated by traditional extension service that is slow, linear, hierarchical, and poorly funded. ... -
Exploring the relationship between feature and perceptual visual spaces
(John Wiley & Sons, Inc., 2008)The number and size of digital repositories containing visual information (images or videos) is increasing and thereby demanding appropriate ways to represent and search these information spaces. Their visualization often ... -
Relationships between perceived features and similarity of images: A test of Tversky’s Contrast Model
(John Wiley & Sons, Inc., 2007)The rapid growth of the numbers of images and their users as a result of the reduction in cost and increase in efficiency of the creation, storage, manipulation, and transmission of images poses challenges to those who ... -
Technology and its impact on the information environment and society in developing countries
(University of the Punjab, 2012) -
Theories of cognition and image categorization: What category labels reveal about basic level theory
(John Wiley & Sons, Inc., 2008)Information search and retrieval interactions usually involve information content in the form of document collections, information retrieval systems and interfaces, and the user. To fully understand information search and ... -
User generated descriptions of individual images versus labels of groups of images: A comparison using basic level theory
(Elsevier, 2008)Although images are visual information sources with little or no text associated with them, users still tend to use text to describe images and formulate queries. This is because digital libraries and search engines provide ... -
Visualizing and mapping the intellectual structure of information retrieval
(Elsevier, 2012)Information retrieval is a long established subfield of library and information science. Since its inception in the early- to mid -1950s, it has grown as a result, in part, of well-regarded retrieval system evaluation ...
