Human concept cognition and semantic relations in the unified medical language system: A coherence analysis.

Human concept cognition and semantic relations in the unified medical language system: A coherence analysis.

Date: August 2007
Creator: Assefa, Shimelis G.
Description: There is almost a universal agreement among scholars in information retrieval (IR) research that knowledge representation needs improvement. As core component of an IR system, improvement of the knowledge representation system has so far involved manipulation of this component based on principles such as vector space, probabilistic approach, inference network, and language modeling, yet the required improvement is still far from fruition. One promising approach that is highly touted to offer a potential solution exists in the cognitive paradigm, where knowledge representation practice should involve, or start from, modeling the human conceptual system. This study based on two related cognitive theories: the theory-based approach to concept representation and the psychological theory of semantic relations, ventured to explore the connection between the human conceptual model and the knowledge representation model (represented by samples of concepts and relations from the unified medical language system, UMLS). Guided by these cognitive theories and based on related and appropriate data-analytic tools, such as nonmetric multidimensional scaling, hierarchical clustering, and content analysis, this study aimed to conduct an exploratory investigation to answer four related questions. Divided into two groups, a total of 89 research participants took part in two sets of cognitive tasks. The first group ...
Contributing Partner: UNT Libraries
Moodle for Professional Development to Agricultural Extension Professionals in Africa: Workshop

Moodle for Professional Development to Agricultural Extension Professionals in Africa: Workshop

Date: July 2013
Creator: Assefa, Shimelis; Alemneh, Daniel Gelaw & Rorissa, Abebe
Description: Presentation for the International Association of Agriculture Information Specialists (IAALD) World Congress. The authors discuss the Modular Object-Oriented Dynamic Learning Environment (Moodle) software package and its use for professional development to agriculture extension professionals in Africa.
Contributing Partner: UNT Libraries
Diffusion of Scientific Knowledge in Agriculture: The Case for Africa [presentation]

Diffusion of Scientific Knowledge in Agriculture: The Case for Africa [presentation]

Date: July 2013
Creator: Assefa, Shimelis; Alemneh, Daniel Gelaw & Rorissa, Abebe
Description: Presentation for the International Association of Agriculture Information Specialists (IAALD) World Congress. The authors discuss the diffusion of scientific knowledge on agriculture for Africa.
Contributing Partner: UNT Libraries
Partnership for Enhancing Developing Countries' Capacity in Participating in Global Knowledge Production and Use

Partnership for Enhancing Developing Countries' Capacity in Participating in Global Knowledge Production and Use

Date: July 2013
Creator: Alemneh, Daniel Gelaw; Assefa, Shimelis & Rorissa, Abebe
Description: Poster discussing a partnership for enhancing developing countries' capacity in participating in global knowledge production and use. This poster highlights some of the contributing factors that enhance the capacity of African institutions to play active roles in the current global knowledge economy (in terms of information and knowledge creation, access, use and reuse).
Contributing Partner: UNT Libraries
Diffusion of Scientific Knowledge in Agriculture: The Case for Africa [paper]

Diffusion of Scientific Knowledge in Agriculture: The Case for Africa [paper]

Date: July 2013
Creator: Assefa, Shimelis; Alemneh, Daniel Gelaw & Rorissa, Abebe
Description: Paper discussing the diffusion of scientific knowledge on agriculture for Africa. Using exploratory research method, this paper set out to investigate existing knowledge diffusion models and their limitations, available best practices, and the potential to infuse translational research as a way to augment extension service programs in SSA agricultural practices.
Contributing Partner: UNT Libraries
Content Divide: Africa and the Global Knowledge Footprint Sponsored by: SIG/III

Content Divide: Africa and the Global Knowledge Footprint Sponsored by: SIG/III

Date: October 2012
Creator: Assefa, Shimelis; Rorissa, Abebe; Alemneh, Daniel Gelaw & Albright, Kendra
Description: This paper discusses Africa and the global knowledge footprint.
Contributing Partner: UNT Libraries