Institution
HEC Montréal
Education•Montreal, Quebec, Canada•
About: HEC Montréal is a education organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Context (language use) & Vehicle routing problem. The organization has 1221 authors who have published 5708 publications receiving 196862 citations. The organization is also known as: Ecole des Hautes Etudes Commerciales de Montreal & HEC Montreal.
Topics: Context (language use), Vehicle routing problem, Corporate governance, Heuristic (computer science), Computer science
Papers published on a yearly basis
Papers
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TL;DR: An EM-based algorithm for optimization of a probabilistic model called RNNLogic, which treats logic rules as a latent variable, and simultaneously trains a rule generator as well as a reasoning predictor with logic rules.
Abstract: This paper studies learning logic rules for reasoning on knowledge graphs. Logic rules provide interpretable explanations when used for prediction as well as being able to generalize to other tasks, and hence are critical to learn. Existing methods either suffer from the problem of searching in a large search space (e.g., neural logic programming) or ineffective optimization due to sparse rewards (e.g., techniques based on reinforcement learning). To address these limitations, this paper proposes a probabilistic model called RNNLogic. RNNLogic treats logic rules as a latent variable, and simultaneously trains a rule generator as well as a reasoning predictor with logic rules. We develop an EM-based algorithm for optimization. In each iteration, the reasoning predictor is first updated to explore some generated logic rules for reasoning. Then in the E-step, we select a set of high-quality rules from all generated rules with both the rule generator and reasoning predictor via posterior inference; and in the M-step, the rule generator is updated with the rules selected in the E-step. Experiments on four datasets prove the effectiveness of RNNLogic.
59 citations
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TL;DR: Analysis of tweets from the 2013 Colorado floods found that adding more URLs to tweets increases the average retweet time more in risk- related tweets than it does in crisis-related tweets, suggesting that the influence of Twitter’s media capabilities on rapid tweet propagation during disasters may differ based on the communication processes.
59 citations
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TL;DR: This work considers two (0, 1)-linear programming formulations of the graph (vertex-) coloring problem, in which variables are associated with stable sets of the input graph, and shows that both are about equally efficient when used in a branch-and-price algorithm.
59 citations
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TL;DR: A tabu search heuristic is proposed for the split delivery Vehicle Routing Problem with Production and Demand Calendars and two new neighbor reduction strategies are described, effective at reducing computing time and improving the overall solution quality.
59 citations
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TL;DR: Chen et al. as discussed by the authors extended the copula-based univariate time series modeling approach to multivariate contexts, where the series are first modeled individually and copulas are used to model the dependence between their innovations.
59 citations
Authors
Showing all 1262 results
Name | H-index | Papers | Citations |
---|---|---|---|
Danny Miller | 133 | 512 | 71238 |
Gilbert Laporte | 128 | 730 | 62608 |
Michael Pollak | 114 | 663 | 57793 |
Yong Yu | 78 | 523 | 26956 |
Pierre Hansen | 78 | 575 | 32505 |
Jean-François Cordeau | 71 | 208 | 19310 |
Robert A. Jarrow | 65 | 356 | 24295 |
Jacques Desrosiers | 63 | 173 | 15926 |
François Soumis | 61 | 290 | 14272 |
Nenad Mladenović | 54 | 320 | 19182 |
Massimo Caccia | 52 | 389 | 16007 |
Guy Desaulniers | 51 | 242 | 8836 |
Ann Langley | 50 | 161 | 15675 |
Jean-Charles Chebat | 48 | 161 | 9062 |
Georges Dionne | 48 | 421 | 7838 |