Publicaties
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Derivation of norms for the Dutch version of the Edinburgh cognitive and behavioral ALS screen Vlaams Instituut voor Biotechnologie KU Leuven
Geometry-Aware Similarity Learning on SPD Manifolds for Visual Recognition KU Leuven
© 1991-2012 IEEE. Symmetric positive definite (SPD) matrices have been employed for data representation in many visual recognition tasks. The success is mainly attributed to learning discriminative SPD matrices encoding the Riemannian geometry of the underlying SPD manifolds. In this paper, we propose a geometry-aware SPD similarity learning (SPDSL) framework to learn discriminative SPD features by directly pursuing a manifold-manifold ...
Convergence analysis of Riemannian Gauss-Newton methods and its connection with the geometric condition number KU Leuven
We obtain estimates of the multiplicative constants appearing in local convergence results of the RiemannianGauss–Newton method for least squares problems on manifolds and relate them to the geometric conditionnumber of [P. Buergisser and F. Cucker, Condition: The Geometry of Numerical Algorithms, 2013].
The influence of students’ cognitive and motivational characteristics on students’ use of a 4C/ID-based online learning environment and their learning gain KU Leuven
Research has revealed that the design of online learning environments can influence students’ use and performance. In this study, an online learning environment for learning French as a foreign language was developed in line with the four component instructional design (4C/ID) model. While the 4C/ID-model is a well-established instructional design model, little is known about (1) factors impacting students’ use of the four components, namely, ...
Sensitivity to the prototype in children with high-functioning autism spectrum disorder: An example of Bayesian cognitive psychometrics. KU Leuven
We present a case study of hierarchical Bayesian explanatory cognitive psychometrics, examining information processing characteristics of individuals with high-functioning autism spectrum disorder (HFASD). On the basis of previously published data, we compare the classification behavior of a group of children with HFASD with that of typically developing (TD) controls using a computational model of categorization. The parameters in the model ...
The impact of personality disorder pathology on the effectiveness of Cognitive Therapy and Interpersonal Psychotherapy for Major Depressive Disorder KU Leuven
Despite extensive research, there is no consensus how Personality Disorders (PD) and PD features affect outcome for Major Depressive Disorder (MDD). The present study evaluated the effects of PD (features) on treatment continuation and effectiveness in Cognitive Therapy (CT) and Interpersonal Psychotherapy (IPT) for MDD.
stagNet: An attentive semantic RNN for group activity recognition KU Leuven
© Springer Nature Switzerland AG 2018. Group activity recognition plays a fundamental role in a variety of applications, e.g. sports video analysis and intelligent surveillance. How to model the spatio-temporal contextual information in a scene still remains a crucial yet challenging issue. We propose a novel attentive semantic recurrent neural network (RNN), dubbed as stagNet, for understanding group activities in videos, based on the ...
Performance analysis of a cognitive radio network with imperfect spectrum sensing Universiteit Gent
In Cognitive Radio Networks (CRNs), spectrum sensing is performed by secondary (unlicensed) users to utilize transmission opportunities, so-called white spaces or spectrum holes, in the primary (licensed) frequency bands. Secondary users (SUs) perform sensing upon arrival to find an idle channel for transmission as well as during transmission to avoid interfering with primary users (PUs). In practice, spectrum sensing is not perfect and sensing ...