Building a validation measure for activity-based transportation models based on mobile phone data

F Liu, D Janssens, JX Cui, YP Wang, G Wets… - Expert Systems with …, 2014 - Elsevier
Activity-based micro-simulation transportation models typically predict 24-h activity-travel
sequences for each individual in a study area. These sequences serve as a key input for …

Characterizing activity sequences using profile Hidden Markov Models

F Liu, D Janssens, JX Cui, G Wets, M Cools - Expert Systems with …, 2015 - Elsevier
In literature, activity sequences, generated from activity-travel diaries, have been analyzed
and classified into clusters based on the composition and ordering of the activities using …

A bag-of-paths framework for network data analysis

K Françoisse, I Kivimäki, A Mantrach, F Rossi… - Neural Networks, 2017 - Elsevier
This work develops a generic framework, called the bag-of-paths (BoP), for link and network
data analysis. The central idea is to assign a probability distribution on the set of all paths in …

Graph-based point drift: Graph centrality on the registration of point-sets

S De Sousa, WG Kropatsch - Pattern Recognition, 2015 - Elsevier
The problem of point-set registration often arises in Pattern Recognition whenever one
needs to match information available in images, such as feature locations, landmarks, or …

Randomized shortest paths with net flows and capacity constraints

S Courtain, P Leleux, I Kivimäki, G Guex, M Saerens - Information Sciences, 2021 - Elsevier
This work extends the randomized shortest paths (RSP) model by investigating the net flow
RSP and adding capacity constraints on edge flows. The standard RSP is a model of …

Sparse randomized shortest paths routing with Tsallis divergence regularization

P Leleux, S Courtain, G Guex, M Saerens - Data Mining and Knowledge …, 2021 - Springer
This work elaborates on the important problem of (1) designing optimal randomized routing
policies for reaching a target node t from a source note s on a weighted directed graph G …

A new iterative algorithm for computing a quality approximate median of strings based on edit operations

J Abreu, JR Rico-Juan - Pattern Recognition Letters, 2014 - Elsevier
This paper presents a new algorithm that can be used to compute an approximation to the
median of a set of strings. The approximate median is obtained through the successive …

Relative entropy-regularized optimal transport on a graph: a new algorithm and an experimental comparison

S Courtain, G Guex, I Kivimäki, M Saerens - International Journal of …, 2023 - Springer
The present work investigates a new relative entropy-regularized algorithm for solving the
optimal transport on a graph problem within the randomized shortest paths formalism. More …

Assessing the best edit in perturbation-based iterative refinement algorithms to compute the median string

P Mirabal, J Abreu, D Seco - Pattern Recognition Letters, 2019 - Elsevier
Different pattern recognition techniques such as clustering, k-nearest neighbors
classification or instance reduction algorithms require prototypes to represent pattern …

Design of biased random walks on a graph with application to collaborative recommendation

P Leleux, S Courtain, K Françoisse… - Physica A: Statistical …, 2022 - Elsevier
This work investigates a paths-based statistical physics formalism, inspired from the bag-of-
paths framework, for the design of random walks on a graph in which the transition …