نتایج جستجو برای: tree based algorithms

تعداد نتایج: 3218928  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعت آب و برق (شهید عباسپور) - دانشکده مهندسی برق و کامپیوتر 1392

abstract according to increase in electricity consumption in one hand and power systemsreliability importance in another , fault location detection techniqueshave beenrecentlytaken to consideration. an algorithm based on collected data from both transmission line endsproposed in this thesis. in order to reducecapacitance effects of transmission line, distributed parametersof transmission line...

2003
Jens Gramm Jiong Guo Falk Hüffner Rolf Niedermeier

We present a (seemingly first) framework for an automated generation of exact search tree algorithms for NP-hard problems. The purpose of our approach is two-fold—rapid development and improved upper bounds. Many search tree algorithms for various problems in the literature are based on complicated case distinctions. Our approach may lead to a much simpler process of developing and analyzing th...

2008
Yintian Liu Yingming Liu Tao Zeng Kaikuo Xu Rong Tang

The process of resource distribution and load balance of a distributed P2P network can be described as the process of mining Supplement Frequent Patterns (SFPs) from query transaction database. With given minimum support (min_sup) and minimum share support (min_share_sup), each SFP includes a core frequent pattern (BFP) used to draw other frequent or sub-frequent items. A latter query returns a...

Journal: :Computer Communications 2010
Xiangyang Gong Wendong Wang Shiduan Cheng

Decision tree based schemes are widely used in designing high-speed packet classification algorithms. The primary objective is to construct a decision tree with minimal storage and searching time complexity. In this paper, we proposed a novel decision tree packet classification algorithm based on Efficient Multiple Bit Selection (EMBS). In the proposed algorithm, prefix fields are transformed t...

استواره, مریم, جهانتیغ, فرزاد فیروزی, نجفی, ایرج,

Background: Peritoneal dialysis is one of the most commonly used treatment methods for the patients with end stage renal failure. In recent years, the mortality rate of patients under this treatment has decreased; however, long-term survival is still an important challenge for health systems. The present study aimed to predict the survival of continuous ambulatory peritoneal dialysis patients. ...

2006
Petra Isenberg M. Sheelagh T. Carpendale Anand Agarawala

Motivations for drawing hierarchical structures are probably as diverse as datasets to visualize. This ubiquity of tree structures has lead to a manifold of tree layout algorithms and tree visualization systems. While many tree layouts exist, increasingly massive data sets, expanding computational power, and still relatively limited display space make tree layout algorithms a topic of ongoing i...

2001
Chung Wing Ng Irwin King Michael R. Lyu

This paper proposes a video structure matching framework based on a tree matching algorithm which can be used as an effective video retrieval tool in a media management system. We define two types of specialized tree matching algorithms. The first is the non-ordered tree matching and the second is the ordered tree matching. The first algorithm is not constrained by the temporal ordering of the ...

1999
Roberto Aringhieri Pierre Hansen Federico Malucelli

The need to generate graphs representing chemical structures suggested the use of computer and as a consequence the delevopment of eecient enumerating algorithms. This paper considers the isomeric acyclic structures enumeration focusin on the alkane molecular family. Two new algorithms based on Reverse Search 7] 8] are presented. The main concern of this paper is to highlight the importance of ...

Journal: :J. Artif. Intell. Res. 2017
Jesse Hostetler Alan Fern Thomas G. Dietterich

Sample-based tree search (SBTS) is an approach to solving Markov decision problems based on constructing a lookahead search tree using random samples from a generative model of the MDP. It encompasses Monte Carlo tree search (MCTS) algorithms like UCT as well as algorithms such as sparse sampling. SBTS is well-suited to solving MDPs with large state spaces due to the relative insensitivity of S...

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