Publikationen

Hier finden Sie von Know-Center MitarbeiterInnen verfasste wissenschaftliche Publikationen

2007

Ghidini C., Pammer-Schindler Viktoria, Scheir Peter, Lindstaedt Stefanie , Serafini L.

APOSDLE: learn@work with semantic web technology

Proceedings of I-MEDIA 2007 and I-SEMANTICS 2007, Graz, Austria, September 5-7, 2007, 2007

Konferenz
The EU project APOSDLE focuses on work-integrated learning. Among the severalchallenges of the project, a crucial role is played by the system’s ability to start from the context ofthe immediate work of a user, establish her missing competencies and learning needs and suggeston-the-fly and appropriate learning stimuli. These learning stimuli are created from a variety ofresources (documents, videos, expert profiles, and so on) already stored in the workplace andmay be in the form of learning material or suggestions to contact experts and / or colleagues.To address this challenge requires the capability of building a system which is able find, choose,share, and combine a variety of knowledge, evolving content and resources in an automatic andeffective manner. The implementation of this capability requires technology which goes beyondtraditional query-answering and keyword based search engines, and Semantic Web technologywas chosen by the consortium as the most appropriate technology to make information search anddata integration more efficient. The aim of this paper is to give an overview of the broad spectrumof Semantic Web technologies that are needed for a complex application like APOSDLE, and thechallenges for the Semantic Web community that have appeared along the way.
2007

Scheir Peter, Granitzer Michael, Lindstaedt Stefanie

Evaluation of an Information Retrieval System for the Semantic Desktop using Standard Measures from Information Retrieval

Proceedings of Lernen-Wissen-Adaption, Halle/Saale, Germany, September 24-26, 2007, 2007

Konferenz
2007

Strohmaier M., Lux M., Granitzer Michael, Scheir Peter, Liaskos S., Yu E.

How Do Users Express Goals on the Web? - An Exploration of Intentional Structures in Web Search

We Know 07 International Workshop on Collaborative Knowledge Management for Web Information Systems, in conjunction with WISE 07, , Nancy, France, 2007

Konferenz
2007

Scheir Peter, Ghidini C., Lindstaedt Stefanie

Improving Search on the Semantic Desktop using Associative Retrieval Techniques

Proceedings of I-MEDIA 2007 and I-SEMANTICS 2007, Graz, Austria, September 5-7, 2007, 2007

Konferenz
While it is agreed that semantic enrichment of resources would lead tobetter search results, at present the low coverage of resources on the web with semanticinformation presents a major hurdle in realizing the vision of search on the SemanticWeb. To address this problem we investigate how to improve retrieval performancein a setting where resources are sparsely annotated with semantic information. Wesuggest employing techniques from associative information retrieval to find relevantmaterial, which was not originally annotated with the concepts used in a query. Wepresent an associative retrieval system for the Semantic Desktop and show how the useof associative retrieval increased retrieval performance.
2007

Scheir Peter, Pammer-Schindler Viktoria, Lindstaedt Stefanie

Information Retrieval on the Semantic Web - Does it exist?

Proceedings of Lernen-Wissen-Adaption, Halle/Saale, Germany, September 24-26, 2007, 2007

Konferenz
Plenty of contemporary attempts to search existthat are associated with the area of Semantic Web.But which of them qualify as information retrievalfor the Semantic Web? Do such approaches exist?To answer these questions we take a look at thenature of the Semantic Web and Semantic Desktopand at definitions for information and data retrieval.We survey current approaches referred toby their authors as information retrieval for the SemanticWeb or that use Semantic Web technologyfor search.
2007

Pammer-Schindler Viktoria, Scheir Peter, Lindstaedt Stefanie

Two Protégé plug-ins for supporting document-based ontology engineering and ontological annotation at document-level

10th International Protégé Conference, Budapest, Hungary, July 15-18, 2007, Budapest, 2007

We present two plug-ins for Prot´eg´e OWL. The first, Discovery Tab,supports document-based ontology engineering with relevant term extraction,clustering and related functionality. The second, Annotation Tab,provides a facility to annotate documents manually and automatically(based on a training set).
2007

Scheir Peter, Granitzer Michael, Lindstaedt Stefanie

Evaluating an Information Retrieval System for the Semantic Desktop using Standard Measures from Information Retrieval

Lernen - Wissen - Adaption LWA 2007, 2007

Konferenz
Evaluation of information retrieval systems is a critical aspect of information retrieval research. New retrieval paradigms, as retrieval in the Semantic Web, present an additional challenge for system evaluation as no off-the-shelf test corpora for evaluation exist. This paper describes the approach taken to evaluate an information retrieval system built for the Semantic Desktop and demonstrates how standard measures from information retrieval research are employed for evaluation.
2007

Lindstaedt Stefanie , Scheir Peter, Ulbrich Armin

Scruffy Technologies to Enable (Work-integrated) Learning

EC-TEL, 2007

Konferenz
The goal of the APOSDLE (Advanced Process-Oriented SelfDirectedLearning environment) project is to support work-integrated learningof knowledge workers. We argue that work-integrated learning requires extremeflexibility on a variety of aspects from supportive learning systems. Thisflexibility can not be achieved by typical (neat) eLearning systems. In this contributionwe present how a battery of scruffy technologies (e.g. combining semantics,associative networks and collective intelligence approaches) can beutilized to achieve this flexibility for user profile maintenance and contextbasedretrieval.
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