Browsing Computer Science by Author "Lehmann, Jens"
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Meta-Hyperband: Hyperparameter optimization with meta-learning and Coarse-to-Fine
Graux, Damien; Payrosangari, Samin; Sadeghi, Afshin; Lehmann, Jens (2020)Hyperparameter optimization is one of the main pillars of machine learning algorithms. In this paper, we introduce Meta-Hyperband: a Hyperband based algorithm that improves the hyperparameter optimization by adding levels ... -
MINDS: a translator to embed mathematical expressions inside SPARQL queries
Graux, Damien; Sejdiu, Gezim; Stadler, Claus; Napolitano, Giulio; Lehmann, Jens (2020)The recent deployments of semantic web tools and the expansion of available linked datasets have given users the opportunity of building increasingly complex applications. These emerging use cases often require queries ...