Publicaties
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Causality in the sciences Vrije Universiteit Brussel
There is a need for integrated thinking about causality, probability and mechanisms in scientific methodology. Causality and probability are long-established central concepts in the sciences, with a corresponding philosophical literature examining their problems. On the other hand, the philosophical literature examining mechanisms is not long-established, and there is no clear idea of how mechanisms relate to causality and probability. But we ...
Evaluation of directed causality measures and lag estimations in multivariate time-series Universiteit Gent
The detection of causal effects among simultaneous observations provides knowledge about the underlying network, and is a topic of interests in many scientific areas. Over the years different causality measures have been developed, each with their own advantages and disadvantages. However, an extensive evaluation study is missing. In this work we consider some of the best-known causality measures i.e., cross-correlation, (conditional) Granger ...
Measuring and Testing Granger Causality over the Spectrum: An application to European Production Expectation Surveys Vrije Universiteit Brussel
Decomposing Granger causality over the spectrum allows to disentangle potentially
di®erent Granger causality relationships over di®erent frequencies. This may yield new
and complementary insights compared to traditional versions of Granger causality. In
this paper, we compare two existing approaches in the frequency domain, proposed
originally by Pierce (1979) and Geweke (1982), and introduce a new testing procedure
...
di®erent Granger causality relationships over di®erent frequencies. This may yield new
and complementary insights compared to traditional versions of Granger causality. In
this paper, we compare two existing approaches in the frequency domain, proposed
originally by Pierce (1979) and Geweke (1982), and introduce a new testing procedure
...
Causality and Causal Modelling in the Social Sciences. Measuring Variations Vrije Universiteit Brussel
The anti-causal prophecies of last century have been disproved. Causality is neither a 'relic of a bygone' nor 'another fetish of modern science'; it still occupies a large part of the current debate in philosophy and the sciences.
This investigation into causal modelling presents the rationale of causality, i.e. the notion that guides causal reasoning in causal modelling. It is argued that causal models are regimented by a rationale ...
This investigation into causal modelling presents the rationale of causality, i.e. the notion that guides causal reasoning in causal modelling. It is argued that causal models are regimented by a rationale ...
Quantum causality constraints on kappa-Minkowski space-time Universiteit Hasselt
The kappa-Minkoswki space-time provides a (quantum) noncommutative deformation of the usual Minkowski space-time. However, a notion of causality is difficult to be defined in such a space with noncommutative time. In this paper, we define a notion of causality on a (1 + 1)-dimensional kappa-Minkoswki space-time using the more general framework of Lorentzian noncommutative geometry. We show that this notion allows specific causal relations, but ...
On the interpretability and computational reliability of frequency-domain Granger causality Universiteit Gent
This Correspondence article is a comment which directly relates to the paper “A study of problems encountered in Granger causality analysis from a neuroscience perspective” (Stokes and Purdon, 2017). We agree that interpretation issues of Granger causality (GC) in neuroscience exist, partially due to the historically unfortunate use of the name “causality”, as described in previous literature. On the other hand, we think that Stokes and Purdon ...
Multiscale Granger causality analysis by à trous wavelet transform Universiteit Gent
Since interactions in neural systems occur across multiple temporal scales, it is likely that information flow will exhibit a multiscale structure, thus requiring a multiscale generalization of classical temporal precedence causality analysis like Granger's approach. However, the computation of multiscale measures of information dynamics is complicated by theoretical and practical issues such as filtering and undersampling: to overcome these ...
Epistemic causality and evidence-based medicine Vrije Universiteit Brussel
Causal claims in biomedical contexts are ubiquitous albeit they are not
always made explicit. This paper addresses the question of what causal claims mean in the
context of disease. It is argued that in medical contexts causality ought to be interpreted
according to the epistemic theory. The epistemic theory offers an alternative to traditional
accounts that cash out causation either in terms of "difference-making" ...
always made explicit. This paper addresses the question of what causal claims mean in the
context of disease. It is argued that in medical contexts causality ought to be interpreted
according to the epistemic theory. The epistemic theory offers an alternative to traditional
accounts that cash out causation either in terms of "difference-making" ...
Causality and the modeling of the measurement process in quantum theory Vrije Universiteit Brussel
In this paper we provide a general account of the causal models which attempt to provide a solution to the famous measurement problem of Quantum Mechanics (QM). We will argue that'leaving aside instrumentalism which restricts the physical meaning of QM to the algorithmic prediction of measurement outcomes'the many interpretations which can be found in the literature can be distinguished through the way they model the measurement process, ...