EC enlargement: Problems ahead

The four hour target; problems ahead.

Dynamic location problems with limited look-ahead

The following problem arose in connection with studies of Internet web page caching. The general setting is as follows: In some fixed metric space M , k “servers” S1, . . . , Sk are given with some arbitrary initial locations in M . Requests for service at certain points σ1, σ2, σ3, . . . , σN , in M arrive over time. Immediately after request σt is received, exactly one of several mutually exc...

Studying the Spicery Situation in West Azerbaijan Cities with Emphasis on the Problems and Challenges Ahead

Studying the Spicery Situation in West Azerbaijan Cities with Emphasis on the Problems and Challenges Ahead Masoomeh Amerian 1*, Afsaneh Malekhoseini 2, Shahriban Sore 3 1Assistant Professor, Department of Production Engineering and Plant Genetics, Faculty of Science and Agriculture Engineering, Razi University, Kermanshah, Iran 2Ph.D. in Agricultural Development, Department of Agricultural E...

Look-Ahead Versus Look-Back for Satisfiability Problems

CNF propositional satis ability SAT is a special kind of the more general Constraint Satisfaction Problem CSP While look back techniques appear to be of little use to solve hard random SAT problems it is supposed that they are necessary to solve hard structured SAT problems In this paper we propose a very simple DPL procedure called Satz which only employs some look ahead techniques a variable ...

Look-Ahead Value Ordering for Constraint Satisfaction Problems

Looking ahead during search is often useful when solving constraint satisfaction problems. Previous studies have shown that looking ahead helps by causing dead-ends to occur earlier in the search, and by providing information that is useful for dynamic variable ordering. In this paper, we show that another bene t of looking ahead is a useful domain value ordering heuristic, which we call look-a...