نتایج جستجو برای: pairwise constraints

تعداد نتایج: 205768  

2009
Bojun Yan

As a recent emerging technique, semi-supervised clustering has attracted significant research interest. Compared to traditional clustering algorithms, which only use unlabeled data, semi-supervised clustering employs both unlabeled and supervised data to obtain a partitioning that conforms more closely to the user's preferences. Several recent papers have discussed this problem (Cohn, Caruana, ...

Journal: :CoRR 2015
Zhiwu Lu Liwei Wang

This paper presents a graph-based learning approach to pairwise constraint propagation on multi-view data. Although pairwise constraint propagation has been studied extensively, pairwise constraints are usually defined over pairs of data points from a single view, i.e., only intra-view constraint propagation is considered for multi-view tasks. In fact, very little attention has been paid to int...

2012
Stefanos D. Anogiannakis Christos Tzoumanekas Doros N. Theodorou

We present atomistic molecular dynamics simulations of two Polyethylene systems where all entanglements are trapped: a perfect network, and a melt with grafted chain ends. We examine microscopically at what level topological constraints can be considered as a collective entanglement effect, as in tube model theories, or as certain pairwise uncrossability interactions, as in slip-link models. A ...

Journal: :Pattern Recognition 2014
Ping He Xiao-hua Xu Kongfa Hu Ling Chen

A key issue of semi-supervised clustering is how to utilize the limited but informative pairwise constraints. In this paper, we propose a new graph-based constrained clustering algorithm, named SCRAWL. It is composed of two random walks with different granularities. In the lower-level random walk, SCRAWL partitions the vertices (i.e., data points) into constrained and unconstrained ones, accord...

Journal: :European Journal of Operational Research 2008
David Bredström Mikael Rönnqvist

We present a mathematical programming model for the combined vehicle routing and scheduling problem with time windows and additional temporal constraints. The temporal constraints allow for imposing pairwise synchronization and pairwise temporal precedence between customer visits, independently of the vehicles. We describe some real world problems where the temporal constraints, in the literatu...

Journal: :CoRR 2017
Jielei Chu Hongjun Wang Hua Meng Peng Jin Tianrui Li

Restricted Boltzmann machines (RBMs) and their variants are usually trained by contrastive divergence (CD) learning, but the training procedure is an unsupervised learning approach, without any guidances of the background knowledge. To enhance the expression ability of traditional RBMs, in this paper, we propose pairwise constraints restricted Boltzmann machine with Gaussian visible units (pcGR...

Journal: :CoRR 2015
Zhenyong Fu Zhiwu Lu

As one of the most important types of (weaker) supervised information in machine learning and pattern recognition, pairwise constraint, which specifies whether a pair of data points occur together, has recently received significant attention, especially the problem of pairwise constraint propagation. At least two reasons account for this trend: the first is that compared to the data label, pair...

Journal: :Biophysical journal 2005
Wenjun Zheng Bernard R Brooks

Based on the elastic network model, we develop a novel method that predicts the conformational change of a protein complex given its initial-state crystal structure together with a small set of pairwise distance constraints for the end state. The predicted conformational change, which is a linear combination of multiple low-frequency normal modes that are solved from the elastic network model, ...

2009
Alon Altman Ariel D. Procaccia Moshe Tennenholtz

A tournament is a binary dominance relation on a set of alternatives. Tournaments arise in many contexts that are relevant to AI, most notably in voting (as a method to aggregate the preferences of agents). There are many works that deal with choice rules that select a desirable alternative from a tournament, but very few of them deal directly with incentive issues, despite the fact that gameth...

2012
Caiming Xiong David M. Johnson Jason J. Corso

Spectral clustering is widely used in data mining, machine learning and pattern recognition. There have been some recent developments in adding pairwise constraints as side information to enforce top-down structure into the clustering results. However, most of these algorithms are “passive” in the sense that the side information is provided beforehand. In this paper, we present a spectral activ...

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