The 2-Evader Problem
نویسندگان
چکیده
It is shown that the work function algorithm for the 2-evader problem has competitive ratio m ? 2 for all metric spaces with m points. This settles the k-server conjecture for metric spaces with k+2 points.
منابع مشابه
A Genetic Programming Approach to Strategy Optimization in the Extended Two-Dimensional Pursuer/Evader Problem
This paper describes a genetic programming system that evolves optimized solutions to the extended two-dimensional pursuer/evader problem. The pursuer/evader problem is a competitive zero-sum game in which an evader attempts to perform maneuvers to escape a faster, more agile pursuer. The extended problem is more realistic than previous formulations because the evader and pursuer are modeled as...
متن کاملMotion Strategies for Surveillance
We address the problem of surveillance in an environment with obstacles. We show that the problem of tracking an evader with one pursuer around one corner is completely decidable. The pursuer and the evader have complete information about each other’s instantaneous position. The pursuer has complete information about the instantaneous velocity of the evader. We present a partition of the visibi...
متن کاملA New Methodology for Optimizing Evasive Maneuvers Under Uncertainty in the Extended Two-Dimensional Pursuer/Evader Problem
Traditional analytic or controltheoretic solutions to the problem of optimizing evasive maneuvers in the extended two-dimensional pursuer/evader problem require the evader to execute specific sequences of maneuvers at precise pursuer/evader distances. These solutions depend upon several pursuer-specific characteristics, and fail to effectively account for uncertainty about the state of the purs...
متن کاملMaintaining strong mutual visibility of an evader moving over the reduced visibility graph
In this paper, we address the problem of determining whether a mobile robot, called the pursuer, is able to maintain strong mutual visibility (a visibility notion between regions over a convex partition of the environment) of an antagonist agent, called the evader. We frame the problem as a non cooperative game. We consider the case in which the pursuer and the evader move at bounded speed, tra...
متن کاملA Methodology for Strategy Optimization Under Uncertainty in the Extended Two-Dimensional Pursuer/Evader Problem
To solve the extended two-dimensional pursuer/evader problem, a strategy must be identified by which an evader (such as an F-16C fighter aircraft) may maneuver to successfully evade pursuers (such as surface-to-air missiles) launched from a wide range of potentially lethal relative initial positions. Uncertainty about the type of pursuer introduces a degree of uncertainty that is difficult to m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Inf. Process. Lett.
دوره 57 شماره
صفحات -
تاریخ انتشار 1996