نتایج جستجو برای Optimal placement

تعداد نتایج: 298188  

1990
YANNIS MANOLOPOULOS,

A problem inherent to the performance of disk systems is the data placement in cyinders in such a way that the seek time is minimized. If successive searchers are independent, then the optimal placement for conventional one-headed disk systems is the organ-pipe arrangement. According to this arrangement the most frequent cylinder is placed in the central location, while the less frequent cylind...

In this paper, a new method based on branch placement for the optimal positioning of Phasor Measurement Units (PMUs) in power systems is proposed. In this method, the PMUs are in type of single-channel and are installed at the beginning of the branches. Therefore, they are able to measure the bus voltages. Also, the installation of the PMUs on the branches increases the security of observabilit...

2006
Prosenjit Bose, Jason Morrison,

Given a simple polygon P with m vertices and a set S of n points in the plane, we consider the problem of finding a rigid motion placement of P that contains the maximum number of points in S. We present two solutions to this problem that represent time versus space tradeoffs. The first algorithm runs in O(n3m3) expected time using O(n2m2) space. The second algorithm runs in O(n3m3 log(nm)) det...

1997
Jens Knoop, Eduard Mehofer,

Dynamic data redistribution is a key technique for maintaining data locality and workload balance in data-parallel languages like HPF. On the other hand, redistributions can be very expensive and signiicantly degrade a program's performance. In this article, we present a novel and aggressive approach for avoiding unnecessary remappings by eliminating partially dead and partially redundant distr...

2017
Chia-Ling Hsu, Rafael Matta, Sergey V. Popov, Takeharu Sogo,

We model a market, such as an online software market, in which an intermediary connects sellers and buyers by displaying sellers' products. With two vertically-differentiated products, an intermediary can place either: (1) one product, not necessarily the better one, on the first page, and the other hidden on the second page; or (2) both products on the first page. We show that it can be optima...

Optimal distribution substation placement is one of the major components of optimal distribution system planning projects. In this paper optimal substation placement problem is solved using Imperialist Competitive Algorithm (ICA) as a new developed heuristic optimization algorithm. This procedure gives the optimal size, site and installation time of medium voltage substation, using their relate...

Journal: :Optimization Letters 2008
Mohammad Al Hasan, Krishna K. Ramachandran, John E. Mitchell,

Autonomous wireless devices such as sensor nodes and stereo cameras, due to their low cost of operation coupled with the potential for remote deployment, have found a plethora of applications ranging from monitoring air, soil and water to seismic detection and military surveillance. Typically, such a network spans a region of interest with the individual nodes cooperating to detect events and d...

2007
Sudebkumar Prasant Pal, Bhaskar Dasgupta,

Let M be an m-sided simple polygon and N be an n-sided polygon with holes. In this paper we consider the problem of computing the feasible region i.e., the set of all placements by translation of M so that M lies inside N without intersecting any hole. First we propose an O(mn 2) time algorithm for computing the feasible region for the case when M is a monotone polygon. Then we consider the gen...

2016
Minquan Cheng, Jing Jiang, Qifa Yan, Xiaohu Tang, Haitao Cao,

In wireless networks, coded caching is an effective technique to reduce network congestion during peak traffic times. Recently, a new concept called placement delivery array (PDA) was proposed to characterize the coded caching scheme. So far, only one class of PDAs by Maddah-Ali and Niesen is known to be optimal. In this paper, we mainly focus on constructing optimal PDAs. Firstly, we derive so...

Journal: :journal of operation and automation in power engineering 2014
k. mazlumi, m. mohammad gholiha1, r. abbasi, f. mazlumi,

in this paper, a new method based on branch placement for the optimal positioning of phasor measurement units (pmus) in power systems is proposed. in this method, the pmus are in type of single-channel and are installed at the beginning of the branches. therefore, they are able to measure the bus voltages. also, the installation of the pmus on the branches increases the security of observabilit...

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