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Adaptive passenger-finding recommendation system for taxi drivers with load balancing problem KU Leuven Universiteit Antwerpen
In the literature, much effort has been devoted to providing taxi drivers with recommendations on how to find passengers efficiently. However, the load balancing problem is not taken seriously, leading to a situation where taxis gather and compete at some points while passengers wait a long time in other places due to low taxi supply. Besides, there are multiple passenger-finding strategies, and recommending appropriate strategies according to ...
A two-phase approach for the Radiotherapy Scheduling Problem KU Leuven
The Radiotherapy Scheduling Problem (RTSP) focuses on optimizing the planning of radiotherapy treatment sessions for cancer patients. In this paper, we propose a two-phase approach for the RTSP. In the first phase, radiotherapy sessions are assigned to specific linear accelerators (linacs) and days. The second phase then decides the sequence of patients on each day/linac and the specific appointment times. For the first phase, an Integer Linear ...
Eigenspectra of solar active region long-period oscillations KU Leuven
Context.The low-frequency.0.5 hour−1(long-period&2 hours) oscillations of active regions(ARs) are studied. The investigation is based on an analysis of time series built from SDO/HMIphotospheric magnetograms and comprises case studies of several types of AR structures.Aims.The main goals are to investigate whether ARs can be engaged in long-period oscillationsas unified oscillatory entities and, if so, to determine the spectral pattern of ...
Local Search for Constrained Graph Clustering in Biological Networks KU Leuven
Semi-supervised or constrained graph clustering incorporates prior information in order to improve clustering results. Pairwise constraints are often utilized to guide the clustering process. This work addresses a constrained graph clustering problem in biological networks where (1) subgraph connectivity constraints are strictly required to be satisfied and (2) clustering quality is assessed with respect to pairwise constraint violations. ...