On random symmetri travelling salesman problems

نویسنده

  • Alan Frieze
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Branch-and-Cut Algorithm for the Symmetric Generalized Traveling Salesman Problem

Symmetri Generalized Travelling Salesman Problem Matteo Fis hetti Juan Jos e Salazar Gonz alezy Paolo Tothz January 1994; Revised May 1995 Abstra t We onsider a variant of the lassi al symmetri Travelling Salesman Problem in whi h the nodes are partitioned into lusters and the salesman has to visit at least one node for ea h luster. This NP-hard problem is known in the literature as the symmetr...

متن کامل

A hybrid metaheuristic using fuzzy greedy search operator for combinatorial optimization with specific reference to the travelling salesman problem

We describe a hybrid meta-heuristic algorithm for combinatorial optimization problems with a specific reference to the travelling salesman problem (TSP). The method is a combination of a genetic algorithm (GA) and greedy randomized adaptive search procedure (GRASP). A new adaptive fuzzy a greedy search operator is developed for this hybrid method. Computational experiments using a wide range of...

متن کامل

On Random Symmetric Travelling Salesman Problems

Let the edges of the complete graph Kn be assigned independent uniform [0; 1] random edge weights. Let ZTSP and Z2FAC be the weights of the minimum length travelling salesman tour and minimum weight 2-factor respectively. We show that whp jZTSP Z2FAC j = o(1). The proof is via by the analysis of a polynomial time algorithm that nds a tour only a little longer than Z2FAC .

متن کامل

The Landscape of the Traveling Salesman Problem

The landscapes of Traveling Salesman Problems are investigated by random walk techniques. The autocorrelation functions for diierent metrics on the space of tours are calculated. The landscape turns out to be AR(1) for symmetric TSPs. For asymmetric problems there can be a random contribution superimposed on an AR(1) behaviour.

متن کامل

Random-key cuckoo search for the travelling salesman problem

Combinatorial optimization problems are typically NP-hard, and thus very challenging to solve. In this paper, we present the random key cuckoo search (RKCS) algorithm for solving the famous Travelling Salesman Problem (TSP). We used a simplified random-key encoding scheme to pass from a continuous space (real numbers) to a combinatorial space. We also consider the displacement of a solution in ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002