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- C. van den Broeck2 profiles44 · h 28
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18 papers · 1 filter
Temporal Support of Regular Expressions in Sequential Pattern Mining
Leticia Gomez, Bart Kuijpers, Alejandro Vaisman
Classic algorithms for sequential pattern discovery, return all frequent sequences present in a database, but, in general, only a few ones are interesting for the user. Languages b…
Pivots, Determinants, and Perfect Matchings of Graphs
Robert Brijder, Tero Harju, Hendrik Jan Hoogeboom
We give a characterization of the effect of sequences of pivot operations on a graph by relating it to determinants of adjacency matrices. This allows us to deduce that two sequenc…
DMRG-study of current and activity fluctuations near non-equilibrium phase transitions
Mieke Gorissen, Jef Hooyberghs, Carlo Vanderzande
Cumulants of a fluctuating current can be obtained from a free energy-like generating function which for Markov processes equals the largest eigenvalue of a generalized generator.…
A triangle-based logic for affine-invariant querying of spatial and spatio-temporal data
Sofie Haesevoets, Bart Kuijpers
In spatial databases, incompatibilities often arise due to different choices of origin or unit of measurement (e.g., centimeters versus inches). By representing and querying the da…
On the Conditional Independence Implication Problem: A Lattice-Theoretic Approach
Mathias Niepert, Dirk Van Gucht, Marc Gyssens
A lattice-theoretic framework is introduced that permits the study of the conditional independence (CI) implication problem relative to the class of discrete probability measures.…
Intrinsic Ratchets
M. van den Broek, R. Eichhorn, C. Van den Broeck
We present a generic formalism to describe Brownian motion of particles with intrinsic asymmetry and give predictions for the drift behavior in unbiased time-dependent force fields…