Jacek Wasilewski

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While much recommender system research has been driven by the rating prediction task, there is an emphasis in recent research on exploring new methods to evaluate the effectiveness of a recommendation. The Recommender Systems Challenge 2014 takes up this theme by challenging researchers to explore engagement as an evaluation criterion. In this paper we(More)
1 Algorithm Description This algorithm consists in parallel search of the solution space using evolving sequences of low level heuristics (LLH). It is inspired by the behaviour of bees searching for food. At the given moment in time part of the bee population actively searches food locations, while the remaining bees stay at the hive. In time some bees(More)
—An Energy management system (EMS) is a concept that spans various possible solutions, ranging from basic implementations over solutions that use simple intelligent computer methods to systems that employ advanced intelligent methods. We designed and implemented an intelligent multi-agent based approach that uses a market mechanism to manage power in the(More)
This study investigated how religiosity relates to goal engagement (i.e., investing time and effort; overcoming obstacles) and goal disengagement (i.e., protecting self-esteem and motivational resources against failure experiences; distancing from unattainable goals) in coping with perceived work-related uncertainties (e.g., growing risk of job loss) that(More)
The idea of the MGrid system for multicarrier energy microgrid designing and control is presented in the article. The first part of the work contains reasons for undertaking the problem of complex optimisation of utilising various energy forms on the operation area of a typical microgid. The planned system functionality and architecture is also presented.(More)