Recent work in high-performance computing has shifted attention to PC clusters. For PC-clusters, member nodes are independent computers connected by generalpurpose networks. The latency of data communications is long and load balancing among the nodes becomes a critical issue. We introduce a new model for program development on PC clusters, namely the SuperProgramming Model (SPM) to address thi...

Spectral Clustering as a relaxation of the normalized/ratio cut has become one of the standard graph-based clustering methods. Existing methods for the computation of multiple clusters, corresponding to a balanced k-cut of the graph, are either based on greedy techniques or heuristics which have weak connection to the original motivation of minimizing the normalized cut. In this paper we propos...

We present a spherically-symmetric, steady-state model of galaxy clusters in which radiative cooling from the hot gas is balanced by heat transport through turbulent mixing. We assume that the gas is in hydrostatic equilibrium, and describe the turbulent heat diffusion by means of a mixing length prescription with a dimensionless parameter αmix. Models with αmix ∼ 0.01 − 0.03 yield reasonably g...

—In this paper, a clustering algorithm based on the cooperative transmission technology is proposed with respect to uneven energy consumption in large scope wireless sensor network. In this algorithm, to ensure the even distribution of the cluster head nodes in large scope wireless sensor network which has even clusters, the cooperative transmission technology is applied in data transmission a...

The task scheduling algorithm for homogeneous Hadoop clusters is incapable of proper utilization of resources in heterogeneous clusters. To overcome this issue, an adaptive task scheduling algorithm has been proposed. With adaptive task scheduling we aim for better resource utilization by dynamically adjusting the workload at runtime. Also we are making the storage of data resource aware so tha...

Multicast routing is one of the most important services in Multi Radio Multi Channel (MRMC) Wireless Mesh Networks (WMN). Multicast routing performance in WMNs could be improved by choosing the best routes and the routes that have minimum interference to reach multicast receivers. In this paper we want to address the multicast routing problem for a given channel assignment in WMNs. The channels...

A distinctive feature of a clustered observational study is its multilevel or nested data structure arising from the assignment of treatment, in a non-random manner, to groups or clusters of units or individuals. Examples are ubiquitous in the health and social sciences including patients in hospitals, employees in firms, and students in schools. What is the optimal matching strategy in a clust...

When an agent decides whether to join a coalition or not, she must consider both i) the expected strength of the coalition and ii) her position in the vertical structure within the coalition. We establish that there exists a positive relationship between the degree of inequality in remuneration across ranks within coalitions and the number of coalitions to be formed. When coalition size is unre...

This study assesses the influence of semantic space on the acquisition of verbal lexicon. The studied one hundred and fifty action verbs extracted from the experimental data in M3 project are classified into clusters in terms of meaning specificity. The semantic space variation of different clusters is examined in the distributional model based on Academia Sinica Balanced Corpus (ASBC) with Lat...