Publications de Nicolas Zufferey

Design of a quality control network for an international food company

Nicolas Zufferey, Philippe Wieser, Simone Lydia Voldrich

In this article, the design of a quality control network is considered in an entire supply chain, in the context of an international food and beverage company, denoted as ABC. For each possible control point of the network, two decisions have to be made: ( ...

TAYLOR & FRANCIS INC2020

Optimizing the trade-off between performance measures and operational risk in a food supply chain environment

Nicolas Zufferey, Philippe Wieser, Simone Lydia Voldrich

In the context of a growing world population and the need to use limited resources responsibly, this study is motivated by the increasing pressures on the food industry, which include issues of food security, safety, and waste. In the context of a global f ...

SPRINGER2020

Model and metaheuristics for a scheduling problem integrating procurement, sale and distribution decisions

Nicolas Zufferey, Rémy Glardon

This paper presents an integrated approach for short-term supply chain management (SCM) at a fast moving consumer goods production plant. The problem is to determine the production quantities, to provide a detailed production schedule, to trigger the relev ...

Springer2017

Competitive and timely food supply combined with operational risk

Nicolas Zufferey, Philippe Wieser, Simone Lydia Voldrich

2017

Performance versus Risk in a Food Supply Chain

Nicolas Zufferey, Philippe Wieser, Simone Lydia Voldrich

Prolog Project & Logistics2017

Performance versus Risk in a Food Supply Chain

Nicolas Zufferey, Philippe Wieser, Simone Lydia Voldrich

2017

Design Space Exploration Problem Formulation for Dataflow Programs on Heterogeneous Architectures

Marco Mattavelli, Nicolas Zufferey, Endri Bezati, Malgorzata Maria Michalska

The implementations of signal processing systems on the emerging many-core or multi-core processing platforms require to solve a very difficult problem: how to partition and schedule the processing tasks according to given optimization functions such as da ...

2016

Performance Estimation Based Multicriteria Partitioning Approach for Dynamic Dataflow Programs

Marco Mattavelli, Nicolas Zufferey, Malgorzata Maria Michalska

The problem of partitioning a dataflow program onto a target architecture is a difficult challenge for any application design. In general, since the problem is NP-complete, it consists of looking for high quality solutions in terms of maximizing the achiev ...

Hindawi Limited2016

Three-level inventory deployment for a luxury watch company facing various perturbations

Nicolas Zufferey, Philippe Wieser, Jean Respen

A well-known Swiss watch brand, active in the top-end luxury market, is facing a complex inventory deployment problem where watches of different models (more than 100 different models) must be dispatched first to wholesalers to finally reach the shops wher ...

Palgrave Macmillan Ltd2016

Food Supply Tomorrow: Combining Performance & Operational Risk

Nicolas Zufferey, Philippe Wieser, Simone Lydia Voldrich

2016

Ant Metaheuristic with Adapted Personalities for the Vehicle Routing Problem

Nicolas Zufferey, Rémy Glardon, Jaime Farres

At each generation of an ant algorithm, each ant builds a solution step by step by adding an element to it. Each choice is based on the greedy force (short term profit or heuristic information) and the trail system (central memory which collects informatio ...

Springer Int Publishing Ag2015

Ant Metaheuristics with Adapted Personalities for Vehicle Routing Problem

Nicolas Zufferey, Rémy Glardon, Jaime Farres

At each generation of an ant algorithm, each ant builds a solution step by step by adding an element to it. Each choice is based on the greedy force (short term profit or heuristic information) and the trail system (central memory which collects informatio ...

2015

Tabu search using variable amplitude for dimensioning an assembly/ disassembly production system

Nicolas Zufferey, Naoufel Cheikhrouhou

2012

A heuristic for nonlinear global optimization

Nicolas Zufferey, Michel Bierlaire, Michaël Clément Louis Ghislain Thémans

We propose a new heuristic for nonlinear global optimization combining a variable neighborhood search framework with a modified trust-region algorithm as local search. The proposed method presents the capability to prematurely interrupt the local search if ...

2010

Variable space search for graph coloring (vol 156, pg 2551, 2008)

Nicolas Zufferey, Matthieu Plumettaz

2009

A graph coloring heuristic using partial solutions and a reactive tabu scheme

Nicolas Zufferey

Most of the recent heuristics for the graph coloring problem start from an infeasible k-coloring (adjacent vertices may have the same color) and try to make the solution feasible through a sequence of color exchanges. In contrast, our approach (called FOO- ...

2008

Variable space search for graph coloring

Nicolas Zufferey, Matthieu Plumettaz

Let G = (V, E) be a graph with vertex set V and edge set E. The k-coloring problem is to assign a color (a number chosen in {1, ..., k}) to each vertex of G so that no edge has both endpoints with the same color. We propose a new local search methodology, ...

2008

Graph colouring approaches for a satellite range scheduling problem

Philippe Giaccari, Nicolas Zufferey, Patrick Amstutz

A goal of this paper is to efficiently adapt the best ingredients of the graph colouring techniques to an NP-hard satellite range scheduling problem, called MuRRSP. We propose two new heuristics for the MuRRSP, where as many jobs as possible have to be sch ...

2008

A heuristic for nonlinear global optimization

Nicolas Zufferey, Michel Bierlaire, Michaël Clément Louis Ghislain Thémans

We propose a new heuristic for nonlinear global optimization combining a variable neighborhood search framework with a modified trust-region algorithm as local search. The proposed method presents the capability to prematurely interrupt the local search if ...

2008

A heuristic for nonlinear global optimization

Nicolas Zufferey, Michel Bierlaire, Michaël Clément Louis Ghislain Thémans

We propose a new heuristic for nonlinear global optimization combining a variable neighbourhood search framework with a modified trust-region algorithm as local search. The proposed method presents the capability to prematurely interrupt the local search i ...

2008