Target-Value Search Revisited

نویسندگان

  • Carlos Linares López
  • Roni Stern
  • Ariel Felner
چکیده

This paper addresses the Target-Value Search (TVS) problem, which is the problem of finding a path between two nodes in a graph whose cost is as close as possible to a given target value, T . This problem has been previously addressed only for directed acyclic graphs. In this work we develop the theory required to solve this problem optimally for any type of graphs. We modify traditional heuristic search algorithms for this setting, and propose a novel bidirectional search algorithm that is specifically suited for TVS. The benefits of this bidirectional search algorithm are discussed both theoretically and experimentally on several domains.

برای دانلود 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

Solving the Target-Value Search Problem

This paper addresses the Target-Value Search (TVS) problem, which is the problem of finding a path between two nodes in a graph whose cost is as close as possible to a given target value, T . This problem has been previously addressed: first, for directed acyclic graphs; second, for general graphs under the assumption that nodes can be revisited given that the same edge can not be traversed twi...

متن کامل

Target-Value Search Revisited (Extended Abstract)

This paper addresses the Target-Value Search (TVS) problem, which is the problem of finding a path between two nodes in a graph whose cost is as close as possible to a given target value T . This problem has been previously addressed only for directed acyclic graphs. In this work we develop the theory required to solve this problem optimally for any type of graphs. We modify traditional heurist...

متن کامل

ACADEMIC WRITING REVISITED: A PHRASEOLOGICAL ANALYSIS OF APPLIED LINGUISTICS HIGH-STAKE GENRES FROM THE PERSPECTIVE OF LEXICAL BUNDLES

Lexical bundles are frequent word combinations that commonly appear in different registers. They have been the subject of much research in the area of corpus linguistics during the last decade. While most previous studies of bundles have mainly focused on variations in the use of these word combinations across different registers and a number of disciplines, not much research has been done to e...

متن کامل

Restructuring binary search trees revisited

Binary search trees are a fundamental data structure. There are two complexity metrics commonly associated with them: the maximum number of comparisons made during a search and the expected number of comparisons made during a search. Minimizing these metrics, separately or together, has been extensively studied. The difficulty of doing this depends on how much information is given. There are 2n...

متن کامل

A clash of bottom-up and top-down processes in visual search: the reversed letter effect revisited.

It is harder to find the letter "N" among its mirror reversals than vice versa, an inconvenient finding for bottom-up saliency accounts based on primary visual cortex (V1) mechanisms. However, in line with this account, we found that in dense search arrays, gaze first landed on either target equally fast. Remarkably, after first landing, gaze often strayed away again and target report was delay...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013