HEC Montréal

About: HEC Montréal is a education organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Vehicle routing problem & Corporate governance. 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.

Adversarial Network Embedding

Abstract: Learning low-dimensional representations of networks has proved effective in a variety of tasks such as node classification, link prediction and network visualization. Existing methods can effectively encode different structural properties into the representations, such as neighborhood connectivity patterns, global structural role similarities and other high-order proximities. However, except for objectives to capture network structural properties, most of them suffer from lack of additional constraints for enhancing the robustness of representations. In this paper, we aim to exploit the strengths of generative adversarial networks in capturing latent features, and investigate its contribution in learning stable and robust graph representations. Specifically, we propose an Adversarial Network Embedding (ANE) framework, which leverages the adversarial learning principle to regularize the representation learning. It consists of two components, i.e., a structure preserving component and an adversarial learning component. The former component aims to capture network structural properties, while the latter contributes to learning robust representations by matching the posterior distribution of the latent representations to given priors. As shown by the empirical results, our method is competitive with or superior to state-of-the-art approaches on benchmark network embedding tasks.

Vehicle Routing and Location Routing with Intermediate Stops: A Review

Abstract: This paper reviews the literature on vehicle routing problems and location routing problems with intermediate stops. We classify publications into different categories from both an application-base...

What a Waste! Exploring the Human Reality of Food Waste from the Store Manager's Perspective

Abstract: Food waste is a major problem in industrialized nations, and thus a better understanding of this phenomenon and its inherent complexity is imperative. As gatekeeper to the food supply chain, the retail and wholesale sector is a crucial actor in the pursuit of minimizing food waste. The authors draw on the perspective of marketing as exchange to provide a holistic exploration of food waste in retail and wholesale stores while taking into account the interconnectedness of the entire food supply chain. Through 32 semistructured interviews with store managers, the authors shed light on the issues of food waste and its human reality. The findings reveal the questionable ethics of discarding food; the societal, regulatory, and systemic constraints leading to the occurrence of food waste in stores; and the resulting moral burden on store managers. Building on these factors, the authors outline public policy recommendations in the areas of education and law and provide managerial recommendations for the b...