Browsing Ph.D. theses (ICM/IKL) by Title
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A critical political economy perspectiveBuch-Hansen, Hubert (København, 2009)[More information][Less information]
Abstract: The focus of this thesis is one "component” of EC competition regulation, namely that of merger control. URI: http://hdl.handle.net/10398/7729 Files in this item: 1
hubert_buch-hansen.pdf (2.956Mb) -
An implementation and evaluationHalskov, Jakob (København, 2008)[More information][Less information]
Abstract: The research object of this thesis is the so-called knowledge patterns and their usefulness in automatically extracting specic semantic relations from unannotated and uncategorized text on the WWW so as to facilitate semi-automatic updating and extension of existing ontological and terminological resources. The main contribution of the thesis is the implementation of a com- plete ontology extension framework called WWW2REL which is 100% based on a knowledge-poor, domain-independent processing of WWW text snippets and includes the three stages of pattern discovery, pattern ltering and relation instance ranking. Unlike most comparable systems WWW2REL is special in that it is both highly portable, can be applied to any semantic relation type and operates directly on uncategorized WWW text snippets. The system is tested on the biomedical UMLS Metathesaurus for four dierent relation types and manually evaluated by four domain experts. It is demonstrated that high precision in the task of knowledge discovery from a noisy text source can be achieved using a very simple instance relevance measure and two ranking heuristics. In contrast, many comparable systems operate on richly annotated academic text and tend to apply heuristics which are custom-tailored to a specic domain and/or relation type. When selecting the overall best ranking scheme, average system performance across all four relation types ranges between 70% to 65% of the maximum possible F-score by top 10 and top 50 relation instances, respectively. Finally, the thesis experiments also examine the portability of individ- ual knowledge patterns and of the ranking heuristics. It is concluded that synonymy KPs are the most domain independent closely followed by ISA KPs, whereas patterns for "may_prevent" and especially "induces" are more dependent on the domain. Empirical experiments also suggest that a ranking heuristic which penalizes relation instances whose arguments occur frequently in a general language corpus can be highly eective, but may need to be adapted to the domain in question. URI: http://hdl.handle.net/10398/7731 Files in this item: 1
jacob_halskov.pdf (1.810Mb) -
Enhancing Social Entrepreneurship and Stakeholder TheoryDacanay, Marie Lisa (Frederiksberg, 2012)[More information][Less information]
Abstract: This thesis develops a framework for understanding how social enterprises engage the poor and address poverty, a pressing global problem of the 21st century. Using casebased theory building, it studies a theoretical sample of three pairs of Philippine-based social enterprises, where the poor were suppliers, workers, and customers. In half of the cases, the poor were also owners. The research studies the roles and role changes of the poor in these social enterprises, how and why these roles changed, or did not change, and the impact of the roles and role changes, if any, on the social enterprises and the poor. Data for the research was gathered mainly from key informant interviews, published and unpublished organizational documents as well as previous studies done by external consultants on the case subjects. Based on a cross case analysis of the data from the theoretical sample, the thesis develops three models of stakeholder engagement among social enterprises with the poor as primary stakeholders or SEPPS, namely: control, collaboration and empowerment. This thesis provides insights and develops propositions about the importance of stakeholder engagement and the power and limitations of these three models in bringing about social inclusion and poverty reduction. These propositions are suggested to be applicable in countries in the South other than the Philippines where systemic poverty and inequality are exacerbated by the failure of state and market institutions to address the needs of the poor. This thesis makes a contribution to social entrepreneurship and stakeholder theory. It does so by sharing a perspective from the South and giving a voice to the poor as stakeholders. The researcher notes that overall, the poor and the South are under-represented in these discourses. On the whole, social entrepreneurship theorizing has been characterized as embryonic as a topic of academic inquiry. Stakeholder engagement is considered an under-theorized area in stakeholder theory. In developing a framework for understanding stakeholder engagement models involving the poor, this thesis makes a first step towards applying and extending stakeholder theory in SEPPS. The thesis likewise enriches social entrepreneurship theory by conceiving of SEPPS as a global social enterprise model that catalyzes South-North cooperation to address poverty and inequality. URI: http://hdl.handle.net/10398/8513 Files in this item: 1
Marie_Lisa_Dacanay.pdf (2.477Mb)
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Now showing items 15-17 of 17