-
Eppendahl, F.: Entwurf eines Konzepts für die elektronische Dokumentenverwaltung von Verträgen (1989)
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- Imprint
- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
-
Sperling, R.: Anlage von Literaturreferenzen für Onlineressourcen auf einer virtuellen Lernplattform (2004)
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- Date
- 26.11.2005 18:39:22
- Imprint
- Potsdam : Fachhochschule, Institut für Information und Dokumentation
-
Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005)
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- Abstract
- By the explosion of possibilities for a ubiquitous content production, the information overload problem reaches the level of complexity which cannot be managed by traditional modelling approaches anymore. Due to their pure syntactical nature traditional information retrieval approaches did not succeed in treating content itself (i.e. its meaning, and not its representation). This leads to a very low usefulness of the results of a retrieval process for a user's task at hand. In the last ten years ontologies have been emerged from an interesting conceptualisation paradigm to a very promising (semantic) modelling technology, especially in the context of the Semantic Web. From the information retrieval point of view, ontologies enable a machine-understandable form of content description, such that the retrieval process can be driven by the meaning of the content. However, the very ambiguous nature of the retrieval process in which a user, due to the unfamiliarity with the underlying repository and/or query syntax, just approximates his information need in a query, implies a necessity to include the user in the retrieval process more actively in order to close the gap between the meaning of the content and the meaning of a user's query (i.e. his information need). This thesis lays foundation for such an ontology-based interactive retrieval process, in which the retrieval system interacts with a user in order to conceptually interpret the meaning of his query, whereas the underlying domain ontology drives the conceptualisation process. In that way the retrieval process evolves from a query evaluation process into a highly interactive cooperation between a user and the retrieval system, in which the system tries to anticipate the user's information need and to deliver the relevant content proactively. Moreover, the notion of content relevance for a user's query evolves from a content dependent artefact to the multidimensional context-dependent structure, strongly influenced by the user's preferences. This cooperation process is realized as the so-called Librarian Agent Query Refinement Process. In order to clarify the impact of an ontology on the retrieval process (regarding its complexity and quality), a set of methods and tools for different levels of content and query formalisation is developed, ranging from pure ontology-based inferencing to keyword-based querying in which semantics automatically emerges from the results. Our evaluation studies have shown that the possibilities to conceptualize a user's information need in the right manner and to interpret the retrieval results accordingly are key issues for realizing much more meaningful information retrieval systems.
- Content
- Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
-
Thornton, K: Powerful structure : inspecting infrastructures of information organization in Wikimedia Foundation projects (2016)
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- Abstract
- This dissertation investigates the social and technological factors of collaboratively organizing information in commons-based peer production systems. To do so, it analyzes the diverse strategies that members of Wikimedia Foundation (WMF) project communities use to organize information. Key findings from this dissertation show that conceptual structures of information organization are encoded into the infrastructure of WMF projects. The fact that WMF projects are commons-based peer production systems means that we can inspect the code that enables these systems, but a specific type of technical literacy is required to do so. I use three methods in this dissertation. I conduct a qualitative content analysis of the discussions surrounding the design, implementation and evaluation of the category system; a quantitative analysis using descriptive statistics of patterns of editing among editors who contributed to the code of templates for information boxes; and a close reading of the infrastructure used to create the category system, the infobox templates, and the knowledge base of structured data.
- Footnote
- A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Washington.
-
Hübner, M.: Integrierte und vielschichtige Dokumentation von Kunstwerken (1991)
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- Imprint
- Darmstadt : Fachhochschule, FB Information und Dokumentation
-
Farazi, M.: Faceted lightweight ontologies : a formalization and some experiments (2010)
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- Abstract
- While classifications are heavily used to categorize web content, the evolution of the web foresees a more formal structure - ontology - which can serve this purpose. Ontologies are core artifacts of the Semantic Web which enable machines to use inference rules to conduct automated reasoning on data. Lightweight ontologies bridge the gap between classifications and ontologies. A lightweight ontology (LO) is an ontology representing a backbone taxonomy where the concept of the child node is more specific than the concept of the parent node. Formal lightweight ontologies can be generated from their informal ones. The key applications of formal lightweight ontologies are document classification, semantic search, and data integration. However, these applications suffer from the following problems: the disambiguation accuracy of the state of the art NLP tools used in generating formal lightweight ontologies from their informal ones; the lack of background knowledge needed for the formal lightweight ontologies; and the limitation of ontology reuse. In this dissertation, we propose a novel solution to these problems in formal lightweight ontologies; namely, faceted lightweight ontology (FLO). FLO is a lightweight ontology in which terms, present in each node label, and their concepts, are available in the background knowledge (BK), which is organized as a set of facets. A facet can be defined as a distinctive property of the groups of concepts that can help in differentiating one group from another. Background knowledge can be defined as a subset of a knowledge base, such as WordNet, and often represents a specific domain.
- Content
- PhD Dissertation at International Doctorate School in Information and Communication Technology. Vgl.: https%3A%2F%2Fcore.ac.uk%2Fdownload%2Fpdf%2F150083013.pdf&usg=AOvVaw2n-qisNagpyT0lli_6QbAQ.
- Imprint
- Trento : University / Department of information engineering and computer science
-
Meink, P.: Chemische Linearnotationen als Hilfsmittel in Information und Dokumentation (o.J.)
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Xiong, C.: Knowledge based text representations for information retrieval (2016)
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- Abstract
- The successes of information retrieval (IR) in recent decades were built upon bag-of-words representations. Effective as it is, bag-of-words is only a shallow text understanding; there is a limited amount of information for document ranking in the word space. This dissertation goes beyond words and builds knowledge based text representations, which embed the external and carefully curated information from knowledge bases, and provide richer and structured evidence for more advanced information retrieval systems. This thesis research first builds query representations with entities associated with the query. Entities' descriptions are used by query expansion techniques that enrich the query with explanation terms. Then we present a general framework that represents a query with entities that appear in the query, are retrieved by the query, or frequently show up in the top retrieved documents. A latent space model is developed to jointly learn the connections from query to entities and the ranking of documents, modeling the external evidence from knowledge bases and internal ranking features cooperatively. To further improve the quality of relevant entities, a defining factor of our query representations, we introduce learning to rank to entity search and retrieve better entities from knowledge bases. In the document representation part, this thesis research also moves one step forward with a bag-of-entities model, in which documents are represented by their automatic entity annotations, and the ranking is performed in the entity space.
This proposal includes plans to improve the quality of relevant entities with a co-learning framework that learns from both entity labels and document labels. We also plan to develop a hybrid ranking system that combines word based and entity based representations together with their uncertainties considered. At last, we plan to enrich the text representations with connections between entities. We propose several ways to infer entity graph representations for texts, and to rank documents using their structure representations. This dissertation overcomes the limitation of word based representations with external and carefully curated information from knowledge bases. We believe this thesis research is a solid start towards the new generation of intelligent, semantic, and structured information retrieval.
- Content
- Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Language and Information Technologies. Vgl.: https%3A%2F%2Fwww.cs.cmu.edu%2F~cx%2Fpapers%2Fknowledge_based_text_representation.pdf&usg=AOvVaw0SaTSvhWLTh__Uz_HtOtl3.
- Imprint
- Pittsburgh, PA : Carnegie Mellon University, School of Computer Science, Language Technologies Institute
-
Buick, S.: Beschreibung, Standardisierung und Erschließung von Information aus Pressespiegeln am Beispiel von ARD und ZDF (1990)
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- Imprint
- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
-
Krämer, S.: Wissensrepräsentation mit KNOSSOS : Konzeption und Implementierung eines umfassenden Lehr- und Übungsbeispiels (1991)
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- Imprint
- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
-
Zechner, A.: Informationsbeschaffung und -verwaltung in lokalen und regionalen Rundfunkanstalten (1993)
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- Imprint
- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
-
Ruhland, B.: Entwurf und Implementierung eines Relationalen Information-Retrieval-Systems über Datenbank-Management-Systeme (1991)
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- Imprint
- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
-
Wunderlich, B.: ¬Die wissenschaftliche Erschließung von Bekleidung mit systematischen Ordnungssystemen im musealen Kontext : Wie bekommt man Hemd und Hose in die Datenbank? (2005)
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- Footnote
- Abschlussarbeit am Institut für Information und Dokumentation an der Fachhochschule Potsdam
- Imprint
- Potsdam : Institut für Information und Dokumentation
-
Dresler, W.: Semi-automatische Indexierungssoftware : Möglichkeiten und Grenzen am Beispiel von g.a.d.t.1 (1998)
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- Footnote
- Abschlussarbeit am Institut für Information und Dokumentation an der Fachhochschule Potsdam
- Imprint
- Potsdam : Fachhochschule, Institut für Information und Dokumentation
-
Makewita, S.M.: Investigating the generic information-seeking function of organisational decision-makers : perspectives on improving organisational information systems (2002)
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- Abstract
- The past decade has seen the emergence of a new paradigm in the corporate world where organisations emphasised connectivity as a means of exposing decision-makers to wider resources of information within and outside the organisation. Many organisations followed the initiatives of enhancing infrastructures, manipulating cultural shifts and emphasising managerial commitment for creating pools and networks of knowledge. However, the concept of connectivity is not merely presenting people with the data, but more importantly, to create environments where people can seek information efficiently. This paradigm has therefore caused a shift in the function of information systems in organisations. They have to be now assessed in relation to how they underpin people's information-seeking activities within the context of their organisational environment. This research project used interpretative research methods to investigate the nature of people's information-seeking activities at two culturally contrasting organisations. Outcomes of this research project provide insights into phenomena associated with people's information-seeking function, and show how they depend on the organisational context that is defined partly by information systems. It suggests that information-seeking is not just searching for data. The inefficiencies inherent in both people and their environments can bring opaqueness into people's data, which they need to avoid or eliminate as part of seeking information. This seems to have made information-seeking a two-tier process consisting of a primary process of searching and interpreting data and auxiliary process of avoiding and eliminating opaqueness in data. Based on this view, this research suggests that organisational information systems operate naturally as implicit dual-mechanisms to underpin the above two-tier process, and that improvements to information systems should concern maintaining the balance in these dual-mechanisms.
- Date
- 22. 7.2022 12:16:58
-
Schmidt, O.M.: Aufbereitung und Weiterverarbeitung downgeloadeter Datenbank-Recherchen mit der Volltextdatenbank BASIS (1990)
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Paul, M.: Methoden zur Erstellung von Informationsdienstleistungen eines privatwirtschaftlichen Informationsbetriebes anhand konkreter Konkurrenzanalysen und Standarddienste (1991)
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- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
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Schöll, B.: Datenbank-Entwurf für die Broschüren- und Plakatsammlung im Historischen Archiv des Hessischen Rundfunks (1991)
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Weidenbach, N.: Werkzeuge zur Evaluierung und Optimierung von Regeln zur Automatischen Indexierung : Anwendungssystementwicklung (1994)
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Funkler, S.: Aufbau und Evaluierung eines objektorientierten Terminologieverwaltungssystems anhand ausgewählter Kriterien (1995)
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- Darmstadt : Fachhochschule, Fachbereich Information und Dokumentation
