Journal of Computer Science articles from April 2011

Journal of Computer Science archives from April 2011

PAPR reduction using BPSO/PTS and STBC in MIMO OFDM system.(Report)
April 1, 2011... INTRODUCTION The growing development of the telecommunication world increases the need for spectral resources, especially that those are more and more rare and expensive, so the use of the multiplexing techniques in particular the modulations...

A new speaker recognition system with combined feature extraction techniques.(Report)
April 1, 2011... INTRODUCTION Speaker recognition is the task of recognizing people from their voices. Strictly speaking there is a difference between speaker recognition (recognizing who is speaking) and speech recognition (recognizing what is being said)....

Stress prediction in the dynamic compression plate with changing the configuration of the screw fixation.(Report)
April 1, 2011... INTRODUCTION Femur fracture is the most significant osteoporotic fracture. The Dynamic Compression Plate (DCP) is one of the most commonly used implants for internal fixation. The body load will be transmitted from the screw through the DCP....

Comparative power analysis of precomputation based content addressable memory.(Report)
April 1, 2011... INTRODUCTION Some content strings of Internet packet payload, also known as "signatures," imply network intrusion attempts. Signature based Network Intrusion Detection System (NIDS) collects these signatures and scans the payload of the...

A new approach for 3D range image segmentation using gradient method.(Report)
April 1, 2011... INTRODUCTION Professional laser scanning technologies currently offer accurate and rapid acquirement of range data from real world objects. High speed graphics cards have also become available worldwide at a relatively low cost. These two...

A secure mobile agent system against tailgating attacks.(Report)
April 1, 2011... INTRODUCTION The concept of mobile agents has revolutionized the world of computing by introducing mobility to the code and by reducing the traffic in the network. Because of this, the usage of mobile agents has been introduced in a number of...

Performance analysis of resource selection algorithms in grid computing environment.(Report)
April 1, 2011... INTRODUCTION Grid computing uses the resources of many separate computers connected by a network to solve large scale problems. The resources may involve CPU cycles, memory, bandwidth, applications and databases on remote systems. These...

Object exploration using a three-axis tactile sensing information.(Report)
April 1, 2011... INTRODUCTION The requirements for autonomous service robots are the ability to detect, explore and recognize objects in their environments. Their modalities of applications highly differ from conventional industrial robots since they are...

An improved location aided cluster based routing protocol with intrusion detection system in mobile ad hoc networks.(Report)
April 1, 2011... INTRODUCTION A Mobile Ad hoc Network (MANET) is an autonomous system of mobile stations connected by wireless link to form a network. It does not rely on predefined infrastructure to keep the network connected therefore it is also known as...

Multilevel classifier in recognition of handwritten Arabic characters.(Report)
April 1, 2011... INTRODUCTION Character recognition systems have never achieved a read rate that is 100%. Because of this, a system which permits rapid and accurate correction of rejects is a major requirement. The success of any Optical Recognition System...

A descriptive framework for the multidimensional medical data mining and representation.(Report)
April 1, 2011... INTRODUCTION A temporal Association rule is a well established data mining technique used to discover co-occurrences of items mainly in temporal sequence data where the data items in the database are usually recorded as binary data (present...

Efficiency analysis for public key systems based on fractal functions.(Report)
April 1, 2011... INTRODUCTION The digital information revolution has brought about changes in our society and our lives. Its many advantages have also generated new challenges and new opportunities for innovation. New technology and new applications bring new...

Meta Heuristic Algorithms for vehicle routing problem with stochastic demands.(Report)
April 1, 2011... INTRODUCTION The VRP was first introduced by (Dantzig and Ramset, 1958), where the objective is to find the optimal set of routes for a fleet of vehicles in order to serve a given set of customers. Also a VRP in a broad sense is a generic...

A novel fractal approach for Persian/Arabic identification based on handwriting recognition.(Report)
April 1, 2011... INTRODUCTION Writer identification still remains an active area in the field of handwritten documents analysis. It can be useful in several domains such as, check of signatures, legal world where it is necessary to authenticate the author of...

Context disambiguation based semantic web search for effective information retrieval.(Report)
April 1, 2011... INTRODUCTION As the web keeps expanding, the number of pages indexed in a search engine also increases. With such a large volume of data, finding relevant information is a difficult task. Queries submitted to a search engine tend to be short...

Analytical modeling of IEEE 802.11e enhanced distributed channel access under a non-saturation condition.(Report)
April 1, 2011... INTRODUCTION In recent years, the IEEE 802.11 Wireless Local Area Network (WLAN) has been widely deployed in Indoor wireless Communication and it includes detailed specification of both medium access control and physical layer. The most...

Topology control using efficient power management.(Report)
April 1, 2011... INTRODUCTION Topology Control in MANET: A mobile ad-hoc network (MANET) comprises of a group of mobile host nodes which work without the help of centralized management or any of the pre-existing infrastructure to form a provisional network. A...

Effects of noises on the analysis of fundamental frequency contours for thai speech.(Report)
April 1, 2011... INTRODUCTION In speech technology study, speech analysis has been conducted for many languages. It is a preliminary procedure in the speech processing area; including speech recognition, speech synthesis, speech analysis and speech coding...

An ontology based approach to implement the online recommendation system.(Report)
April 1, 2011... INTRODUCTION With the increasing popularity of Web, we have witnessed explosive growth in the data accessible on the web. It become mandatory for all commercial sites to provide personalized access of information based on user intent....

A novel performance metric for building an optimized classifier.(Report)
April 1, 2011... INTRODUCTION To date, many efforts have been carried out to design more advanced algorithms to solve classification problems. At the same time, the development of appropriate performance metrics to evaluate the classification performance are...