Sökning: "implicit information"
Visar resultat 1 - 5 av 160 avhandlingar innehållade orden implicit information.
1. Tensions and Contradictions in Information Management
Sammanfattning : The thesis aims to contribute to the research on the management and use of information in organisations by providing a holistic understanding of the various information practices and needs as well as attitudes towards information at different levels in the broader socio-historical context of a specific organisation. To this end, findings and approaches from research traditions in library and information science, management studies and organisational theory are combined in an activity-theoretical approach with some neo-institutional aspects. LÄS MER
2. Utilizing Diversity and Performance Measures for Ensemble Creation
Sammanfattning : An ensemble is a composite model, aggregating multiple base models into one predictive model. An ensemble prediction, consequently, is a function of all included base models. Both theory and a wealth of empirical studies have established that ensembles are generally more accurate than single predictive models. LÄS MER
3. Ontology for Information Systems (04IS) Design Methodology : Conceptualizing, Designing and Representing Domain Ontologies
Sammanfattning : Globalization has opened new frontiers for business enterprises and human communication. There is an information explosion that necessitates huge amounts of information to be speedily processed and acted upon. LÄS MER
4. Algorithms and Representations for Personalised Information Access
Sammanfattning : Personalised information access systems use historical feedback data, such as implicit and explicit ratings for textual documents and other items, to better locate the right or relevant information for individual users.Three topics in personalised information access are addressed: learning from relevance feedback and document categorisation by the use of concept-based text representations, the need for scalable and accurate algorithms for collaborative filtering, and the integration of textual and collaborative information access. LÄS MER
5. Trust-Based User Profiling
Sammanfattning : We have introduced the notion of user profiling with trust, as a solution to theproblem of uncertainty and unmanageable exposure of personal data duringaccess, retrieval and consumption by web applications. Our solution sug-gests explicit modeling of trust and embedding trust metrics and mechanismswithin very fabric of user profiles. LÄS MER
