With the colossal growth of Wireless Sensor Networks (WSNs) in different applications starting from home automation to different military affairs, the pressure on ensuring security in such a network is paramount. Considering ...

Using a set of binary classi ers to solve the multiclass classi cation problem has been a popular approach over the years. This technique is known as binarization. The decision boundary that these binary classi ers (also ...

Customer support service has now become an integral part of every large enterprise since customer satisfaction is largely determined by the quality of service he/she receives after purchase of a product/service. Traditionally ...

Participatory sensor network is a network where participants or nodes use mobile phones or social network and feed data to detect an event. Data is gathered and analyzed to an event. As data gathering is open to many ...

A phylogenetic tree represents the evolutionary relationship among a group of species. The ‘quartet-based’ phylogenetic tree construction refers to the method of combining many ‘quartets’ (a phylogenetic tree relating 4 ...

Time series forecasting (TSF) has been widely used in many application areas such as science, engineering, and nance. Usually the characteristics of phenomenon generating a series are unknown and the information available ...

An upward point-set embedding of an upward planar digraph G on a set of points S with a mapping © : V (G) → S is a drawing ¡ of G where each vertex of G is placed on a point of S according to ©, each edge is drawn upward ...

In the age of information technology Human-Computer interaction has gained importance. Speech is the primary mode of communication among human being and people expect to exchange natural dialect with computer. This ...

Knapsack problems (KP) and variants thereof are classic problems in computer science with diverse applications. The knapsack problem has been used to model various decision making processes. Industrial applications find ...

A group nearest neighbor (GNN) query is an important class of information and enquiry services. Researchers have focused on developing e cient algorithms to evaluate variant of GNN queries in recent years. In this thesis, ...