Large-scale clustering has found wide applications in many fields and received much attention in recent years. However, most existing large-scale clustering methods can only achieve mediocre performance, because they are sensitive to the unavoidable presence of noise in the large-scale data. To address this challenging problem, we thus propose a large-scale sparse clustering (LSSC) algorithm. I...

the ways of placing decision making units (dmus) in certain clusters are found as a subject in statistics, these ways usually are heuristic. the proposed clustering approach in this article considers preferences of dmus. this study applies data envelopment analysis (dea) dmus are clustered by solving multi-objective linear problem (molp) and by considering preferences of each dmu at production ...

Biological inspired routing or bio-inspired routing is a new heuristic routing algorithm in wireless sensor network, which is inspired from biological activities of insects. ACO is ants’ inspired routing algorithm ACO, which has the ability to find shortest path and re-establish the new route in the case of route failure. In order to improve the network performance i.e. increase network lifetim...

One of the most important aspects of software project management is the estimation of cost and time required for running information system. Therefore, software managers try to carry estimation based on behavior, properties, and project restrictions. Software cost estimation refers to the process of development requirement prediction of software system. Various kinds of effort estimation patter...

Clustering is the process of organizing similar objects into groups, with its main objective of organizing a collection of data items into some meaningful groups. The problem of Clustering has been approached from different disciplines during the last few year's. Many algorithms have been developed in recent years for solving problems of numerical and combinatorial optimization problems. M...

Data clustering is a popular approach for automatically finding classes, concepts, or groups of patterns. Clustering aims at representing large datasets by a fewer number of prototypes or clusters. It brings simplicity in modeling data and thus plays a central role in the process of knowledge discovery and data mining. Data mining tasks require fast and accurate partitioning of huge datasets, w...

Clustering is a central problem in non-relational data analysis, with k-means being the most popular clustering technique. In various scenarios, it may be necessary to perform clustering over the same input data multiple times – with different values of k, different clustering attributes, or different initial centroids – before arriving at the final solution. In this paper, we propose algorithm...