Publication

Here you can find scientific publications of Know-Center employees

Evaluation of Pseudo Relevance Feedback Techniques for Cross Vertical Aggregated Search

H Ziak, R Kern – Lecture Notes in Computer Science, 2015

Cross vertical aggregated search is a special form of meta search, were multiple search engines from different domains and varying behaviour are combined to produce a single search result for each query. Such a setting poses a number of challenges, among them the question of how to best evaluate the…

Unified Information Access for Knowledge Workers via a Federated Recommender System

H Gursch, H Ziak, R Kern – Mensch und Computer 2015 – Workshopba…, 2015 – Anette Weisbecker, Michael Burmester, Albrecht Schmidt

The objective of the EEXCESS (Enhancing Europe’s eXchange in Cultural Educational and Scientific reSources) project is to develop a system that can automatically recommend helpful and novel content to knowledge workers. The EEXCESS system can be integrated into existing software user interfaces as plugins which will extract topics and suggest…

Efficient Search Result Diversification via Query Expansion Using Knowledge Bases

R Rubien, H Ziak, R Kern – Proceedings of 12th International Workshop on Text-based Information Retrieval (TIR), 2015

Underspecified search queries can be performed via result list diversification approaches, which are often computationally complex and require longer response times. In this paper, we explore an alternative, and more efficient way to diversify the result list based on query expansion. To that end, we used a knowledge base pseudo-relevance…

KnCe2013-CORE:Semantic Text Similarity by use of Knowledge Bases

R Kern, H Ziak – Semeval, 2013

In this paper we describe KnCe2013-CORE, a system to compute the semantic similarity of two short text snippets. The system com- putes a number of features which are gath- ered from different knowledge bases, namely WordNet, Wikipedia and Wiktionary. The similarity scores derived from these features are then fed into…

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