Max Jacob et l’Espagne : introduction

Jacob Et Al : an Analytical Model for Designing Memory Hierarchies

| Memory hierarchies have long been studied by many means: system building, trace-driven simulation, and mathematical analysis. Yet little help is available for the system designer wishing to quickly size the diierent levels in a memory hierarchy to a rst-order approximation. In this paper , we present a simple analysis for providing this practical help and some unexpected results and intuition...

Introduction a l'etude de salmonella et des salmonelloses en Iran

5.1 Introduction 5.2 Max Leaf Spanning Tree

In this lecture we discuss the local search technique for designing approximation algorithms. The technique works as follows: we start with an arbitrary solution for a given problem, and perform small changes to it that improve the objective function. This is repeated as long as any improvement can be made. When this is no longer possible we have reached a local optimum. Using the local optimal...

7.1 Introduction 7.2 Weighted Max Cut

In Lecture 2, we discussed the unweighted max cut problem and gave 2-approximation algorithms based on local search, greedy paradigm and randomization. Today, we will study the weighted version of the max cut problem. Using this problem we will illustrate a general technique of bounding the running time of a local search based algorithm at the expense of a small factor in the approximation guar...

Informatique et linguistique: Introduction, historique