Title: Ontology Enrichment Based on Unstructured Text Data Author: Ivana Lukšová Department: Department of Software Engineering Supervisor: Mgr. Martin Nečaský, Ph.D., Department of Software Engi- neering Abstract: Semantic annotation, attaching semantic information to text data, is a fundamental task in the knowledge extraction. Several ontology-based semantic annotation platforms have been proposed in recent years. However, the process of automated ontology engineering is still a challenging problem. In this paper, a new semi-automatic method for ontology enrichment based on unstructured text is presented to facilitate this process. NLP and ma- chined learning methods are employed to extract new ontological elements, such as concepts and relations, from text. Our method achieves F-measure up to 71% for concepts extraction and up to 68% for relations extraction. Keywords: ontology, machine learning, knowledge extraction 1

This work draws on the discipline of Discursive Psychology for a theory of language, shown to be all but absent in the organizational knowledge management literature, and a methodology for the study of discourse. Organizational knowledge sharing is selected as the topic of primary research for its accessibility to analysis, and because it is considered to be an underpinning action to new knowledge creation. The research approaches discourse as action-orientated and locally situated, as constructed and constructive, with function and consequence for speakers. Indicative research questions are concerned with the discursively accomplished phenomena of trust, risk, identity and context, how these are accomplished in rhetorical interaction and with what effect on organizationally situated knowledge sharing. Recordings of organizations’ everyday knowledge sharing meetings, as well as an online discussion forum, are analysed focusing on these four themes. Findings show them to be accomplished as speakers’ live concerns in knowledge sharing talk. It is claimed that trust, risk and identity, as contexts displayed and oriented to by speakers themselves, are tacitly and collaboratively accomplished actions, shown to be co-relational and influential to knowledge sharing scope and directions. A further claim is that the analysis of discourse for what contexts in general speakers invoke displays speakers’ orienting to trust, risk and identity. Limitations of the present study are discussed, along with speculated implications for knowledge management and future directions for research. This work aims to contribute to the field of knowledge management in three ways. First, in extending the directions that some scholars and practitioners are already indicating through focusing the interest of study on organizational discourse. Secondly, the study seeks to understand how tacit knowing, as a phenomenon invoked by speakers themselves, is accomplished and how it influences the scope and directions of knowledge sharing actions, and with what effect. Finally, it is claimed that the research provides some support for those theorists in the knowledge management field who promote the knowing how-knowing that formulation, and those who are critical of conventional knowledge management’s heavy reliance on technology to deliver its objectives.

Knowledge Base Refinement is an area of Machine Learning whose primary goal is the automatic detection and correction of errors in faulty expert system's knowledge bases. A very important feature of a refinement system is the mechanism used to select the refinements to be implemented. Since there are usually different ways to fix a fault, most current Knowledge Base Refinement systems use extensive heuristics to choose one or a few alternative refinements from a set of possible corrections. This approach is justified by the intention of avoiding the computational problems inherent in the generation and testing of multiple refinements. On the other hand, such systems are liable to miss solutions. The opposite approach was adopted by the Knowledge Base Refinement system KRUST which proposed many alternative corrections to refine each wrongly-solved example. Although KRUST demonstrated the feasibility of this approach, the potential of multiple refinement generation could not be fully exploited since the system used a limited set of refinement operators in order to contain the number of alternative fixes generated for each fault, and hence was unable to rectify certain kinds of errors. Additionally, the time taken to produce and test a set of refined knowledge bases was considerable for any non-trivial knowledge base. This thesis presents a major revision of the KRUST system. Like its predecessor, the resulting system, STALKER, proposes many alternative refinements to correct each wrongly classified example in the training set. Two enhancements have been made: the class of errors handled by KRUST has been augmented through the introduction of inductive refinement operators; the testing phase of Knowledge Base Refinement has been speeded up considerably by means of a technique based on a Truth Maintenance System (TMS). The resulting system is more effective than other refinement systems because it generates many alternative refinements. At the same time, STALKER is very efficient since KRUST's computationally expensive implementation and testing of refined knowledge bases has been replaced by a TMS-based simulator.

Abstract This article is a presentation of a brief cultural glossary of Northern Sotho cooking terms. The glossary is mainly composed of names for utensils and ingredients, and action words for the processes involved in the preparation of cultural dishes. It also contains names of dishes tied to some idiomatic expressions in a way eliciting cultural experiences that can lead to an under-standing of indigenous knowledge systems. The article seeks to explore ways of capturing cultural glossaries to feed into the national dictionary corpora by using a case-study approach to investigate the processes that led to the generation of this specific school-based project. A number of issues that surfaced in this project, can possibly serve as models for the collection of authentic glossaries that can support dictionary making in African languages.

Thesis (Ph.D.)--Boston University / PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / The problem of the dissertation is to give a systematic exposition of the knowledge of God as it is treated in the writings of John Baillie and to make a critical evaluation of the central features of his thought. The method followed makes use of a survey of this problem as it has been dealt with by representative thinkers since the Reformation in order to trace historical influences upon Baillie and to locate his methods and conclusions among the various alternatives dealt with by modern thinkers. The study is developed by reference to the sizeable body of Baillie's writings and by the commentaries on his thought. Following the systematic development of his understanding of "the sense of the presence of God," revelation, faith, reason, and the stats of theological propositions, an evaluative chapter sets down notable strengths and weaknesses as they are determined by criteria adopted at the beginning of the chapter. The study closes with a succinct list of conclusions [TRUNCATED] / 2031-01-01

Each organization has its specifics that affect the way knowledge is created and transferred. The existing literature in the field of knowledge creation, studies contemporary organizations and currently does not consider special cases such as high reliability organizations. Therefore, the aim of this thesis is to complement the existing knowledge creation model by describing the knowledge creation process for high reliability organizations using the case study of the Lambohov Fire Station. A qualitative case study was conducted and carried out with the help of Lambohov Fire Station through non-participant observations and semi- structured interviews with one of the fire brigades. Our research has revealed that the learning processes in HROs differs from the existing theoretical framework. According to the literature, knowledge is created through conversion of tacit and explicit knowledge, while at the fire station the conversion involves tacit and implicit types of knowledge.

Knowledge management only recently gained respect as a strategic business tool. Assisted by technology, the ability to gather, formulate and share data took on new dimensions. Knowledge management is multifarious and covers areas such as cognitive science, business process and human resources management. Human resources management in turn covers a wider area than knowledge management. The two areas overlap because knowledge creation is primarily a human activity. Critical success factors and specific objectives for human resources management within a knowledge-based environment were the main outcomes derived from this research. Human resource practitioners need to change their work practices in order to be effective in a knowledge-based environment. This was a key finding of the research. It was established that information technology management was still the main driver of knowledge management projects in organisations, but had also grown tremendously in understanding human issues within technical environments.

Higher Education is influenced by society and workplace demands, which affects the structure of curricula. The literature review exposed a lack of understanding of knowledge in the Oral Hygiene occupational field. This led to a call to understand which knowledge is most valued by the Oral Hygienist and how it affects professional development. This necessitated the examination of knowledge located in curricula. The aim of this study was to study the perceptions of South African Oral Hygiene lecturers and the organisation of knowledge in curricula, in order to learn about current attempts to professionalise the field. The study makes use of a qualitative descriptive design. The study population is based at two universities, consisted of full-time lecturers teaching Oral Hygiene. Data collection and analysis comprised three methods: semi-structured questionnaires to examine the lecturers’ perceptions about knowledge; curriculum analysis gathering information about the curricula making use of a knowledge type analysis tool developed from the conceptual framework; and examination question analysis to assess the recontextualisation of knowledge from concepts or everyday knowledge of practice. The results show a comparison of lecturers’ perceptions and the organisation of knowledge in the curriculum suggest that although it is clear that the lecturers aspire to professionalise the field, the curricula and their own research identities promote the preparation of practitioners with technical skills. This is shown (inter alia) in the following findings about both curricula: ‘clinical applied knowledge’ is highly valued (UNIV1-73% and UNIV2-53%) with a small amount of time spent on ‘pure’ knowledge (UNIV1-8% and UNIV2-12%). The point to be made here is, that an emphasis on ‘Clinical Applied knowledge’ suggests that a large amount of time is spent on covering procedures for practice, which in turn is an indication that the two curricula are inclined towards preparing students for an occupational model of practice. The lecturers’ research identity focuses on knowledge borrowed from clinical practice. Lecturers use a unifying concept for practice and believe they are experts in clinical teaching. In conclusion, examining South African lecturers’ current views of the Oral Hygiene knowledge base and studying its organisation within different curricula reveal that the knowledge most valued in the field is Clinical Applied knowledge with less emphasis on pure knowledge and knowledge applied from the sciences. This study highlights that lecturers aspire to professionalise the field, even though curricula promote the preparation of practitioners with technical skills.

Faculty of Health Sciences, Master of Science in Nursing Cell no:082-611-4199 / A quantitative research study in the form of a descriptive survey was undertaken with the aim of determining the level of knowledge and skills of final-year undergraduate nursing students relating to breast cancer prevention. The research objectives were as follows: to determine the awareness of, and orientation toward breast cancer preventative measures of final-year undergraduate nursing students; to determine the level of knowledge regarding breast cancer prevention of final-year undergraduate nursing students; to assess their psychomotor skills in performing a clinical breast examination; and to identify critical knowledge and skill deficits, with regard to breast cancer prevention. Data were collected from a sample of final-year undergraduate nursing students (n=62) from three universities in Gauteng. A self-administered questionnaire was used to collect data relating to theoretical knowledge. Direct, structured observation, using a self-compiled checklist, enabled the collection of data relating to psychomotor skills in clinical breast examinations. Data analysis was done with the aid of two computer software packages, namely MoonStats and Microsoft Excel. The findings of the research revealed that, although the students were positively orientated to the issue of breast cancer prevention, their theoretical knowledge regarding it was not largely below the level that would deem them competent. The mean score for theoretical knowledge regarding breast cancer prevention was 56%. In addition, the scores for their psychomotor skills in carrying out a clinical breast examination were generally poor. The mean score in this component of the study was 45%. Major theoretical and skill deficits were identified from the findings of the study. Recommendations proposed comprehensive educational coverage of breast cancer prevention in nursing curricula. It was suggested that nursing students become more actively involved in the promotion of breast cancer prevention in underserved communities. Furthermore it is suggested that nurses and nursing students become more involved in ongoing research in the field of breast cancer prevention.

Purpose The purpose of this case study is to understand how inter-organizational knowledge management is conducted in an economic association by analysing how different actor representatives perceive the inter-organizational collaboration. Design/methodology/approach The method of this study is qualitative, with a single case study of an economic association in Dalarna, Sweden. The interviews were of semi-structured character. A total of nine respondents were interviewed; four respondents from private member organizations, three respondents from public member organizations and two respondents employed by the economic association. Findings and conclusion Six themes were found that together answers the purpose of this study. These themes are personalization, codification, collaboration, conditions, capabilities and challenges. The personalization strategy from the knowledge management framework by Hansen et al (1999) is suggested to be the main strategy in the case of the economic association, while the codification strategy is the supporting strategy working in relation to each other. In order to use those strategies in this interorganizational context, four other themes are added in a model created by the authors of this study. The four additional themes need to be taken in consideration and as the theme capabilities points out; the inter-organizational collaboration gives not only challenges, but also opportunities for the participating organizations. Furthermore, the conditions and the reasons for collaborating can be used for improving the structure of an inter-organizational collaboration. Practical Information A Swedish economic association can be described as a legal entity which involves a minimum of three partners, with a common interest and where all members of the economic association are required to participate in the activities of the economic association. Originality/Value This study contributes to the field of inter-organizational knowledge management by providing insight from a Swedish economic association perspective. There is an apparent gap pointed out between theory driven and practical driven research, where this single case study aims to contribute to the practical field of applying inter-organizational knowledge management perspective into a real case scenario. The case is particularly interesting to study since there are 33 organizations involved in knowledge management, with knowledge bases of both private and public sectors, small- and middlesized organizations and from different branches.