International Journal of Computer Techniques

1-7

Authors: - IJCTMoussa Mahamat , Salisu Ibrahim YUSUF ,ISA MUSLU

In recent times, research has shown that industries adopt distributed database system to improve their operations such as real time data exchange via remote database access. Traditionally, application connection to database is established using the database information such as database name, username, and password and IP address of the database server over a network. Studies in the past have shown that a number of security threats come to play in this approach as the database is exposed on that network. Much work has been done to tackle those threats but the proposed solutions huge processing. In this research a web-service-based remote database access method is proposed reducing the security threats by avoiding direct access. Another advantage of this approach is that it is platform-independent. An experimental case study of Nigerian Universities Certificate Verification System was designed and implemented using the proposed methodology.

12-20

Authors: - IJCTR. Ramesh, S. Kumara Ghuru

Ranking techniques are very noteworthy in the fuzzy numbers system for defuzzification. Many authors have already proposed various types of techniques to find out the performance of fuzzy queues. In this paper, we are going to deal with a new methodology namely centroid of centroids ranking method to find out the performance measures of non-preemptive priority fuzzy queues with 4-priorities. It is possible to convert from fuzzy environment to crisp environment by our proposed ranking method in order to analyze the performance measures of fuzzy queues. Finally, the effectiveness and the accurate values of our proposed method have been successfully solved by an example

27-35

Authors: - IJCTHuang Wenji , Liu Ning

For the eye-to-hand monocular vision system, based on the idea of "black box", which maps the image coordinates directly to the robot reference coordinates, the transform matrix about image coordinate and robot reference coordinate is directly obtained in the condition of fixed distance between the positioning plane and camera. The optimized transform matrix can be obtained as global calibration parameters for the eye-to-hand system, without the need for calculation of camera’s internal and external parameters. As the transformation matrix does not consider the non-linear imaging of the lens, the direct use of this transform matrix of the two coordinates system will have a greater accuracy error. In order to reduce the positioning error of hand-eye vision system, this paper considers the obtainment of transform matrix as multiobjective optimization problem and applies the hybrid particle swarm algorithm to optimize the matrix parameters. The experimental results show that this method can effectively improve the hand-eye positioning accuracy and can be successfully applied to industrial production.

42-48

Authors: - IJCT E.N.Ganesh

Today people want the world on their hands, It outlets the revolutions of computing and smart environment. Some technologies like ambient intelligence satisfy the maximum need of smart world but these technologies are not tightly coupled with internet, so the people need another technology extension. Internet of Things (IoT) is an ideal emerging technology to influence the internet and communication technologies. Simply “Internet of Things” connects „living and non living things‟ through „internet‟. Traditionally in the object oriented paradigm everything in the world is considered as an object, but in the IoT paradigm everything in the world is considered as a smart object, and allows them to communicate to each other through the internet technologies by physically or virtually. This paper proposes architecture to enable the users to control and monitor smart devices through internet. It creates an interface between users and smart home by using GSM and internet technologies, or it simply creates GSM based wireless communication from the web server into the smart home. In this architecture the users give commands through web then the users inputs are converted into GSM-SMS commands. These commands are sent to embedded system module (embedded system directly connect with devices) through GSM network, and finally the user commands are parsed and executed by microcontroller to control any electronic objects like home appliances, lights, etc and it sends the acknowledgement. The embedded system module can be placed anywhere in the world and it will be controlled by IoT Agent through GSM network.Today people want the world on their hands, It outlets the revolutions of computing and smart environment. Some technologies like ambient intelligence satisfy the maximum need of smart world but these technologies are not tightly coupled with internet, so the people need another technology extension. Internet of Things (IoT) is an ideal emerging technology to influence the internet and communication technologies. Simply “Internet of Things” connects „living and non living things‟ through „internet‟. Traditionally in the object oriented paradigm everything in the world is considered as an object, but in the IoT paradigm everything in the world is considered as a smart object, and allows them to communicate to each other through the internet technologies by physically or virtually. This paper proposes architecture to enable the users to control and monitor smart devices through internet. It creates an interface between users and smart home by using GSM and internet technologies, or it simply creates GSM based wireless communication from the web server into the smart home. In this architecture the users give commands through web then the users inputs are converted into GSM-SMS commands. These commands are sent to embedded system module (embedded system directly connect with devices) through GSM network, and finally the user commands are parsed and executed by microcontroller to control any electronic objects like home appliances, lights, etc and it sends the acknowledgement. The embedded system module can be placed anywhere in the world and it will be controlled by IoT Agent through GSM network.

56-63

Authors: - IJCTSteve A. Adeshina, Lukman E. Ismaila, and Adegboyega Ojo

—Free and fair elections is known to be central to good governance. The interregnum between the time voting is concluded and results declared is often used by mischief makers to manipulate the results of elections. This work presents ways and means of reducing the time between voting activities and results publication to the barest minimum. This is done by automatically transmitting, collating and publishing results from urban and remote places to central servers. Nigeria with its huge population, large mass area, and an extensive difficult terrain without internet access presents us with an appropriate case to study. This method will be applicable to similar electoral constituencies especially in developing countries.A results collation and transmission system was designed and implemented using Nigerian Elections as a case study. Election results are collated from every polling points (about 132,000 locations) sent using a mobile application to a central server. These results are collated using an SQL database. Collated results are subsequently displayed in a result portal using PHP. This process leads to a huge reduction in the time it takes to collate and publish election results and subsequently leading to a free and fair elections. The tests conducted show an 95% effectiveness in the transmitted result and a reduction of Result transmission time from about 3 days to 6 hour

72-78

Authors: - IJCTSteve A. Adeshina, Collins E. Onyemaobi, and Adegboyega Ojo

2015 General Elections conducted in Nigeria is seen to be the most credible election since the inception of the democratic governance in Nigeria. During this process, the Voters Register (VR), Permanent Voters Card (PVC) and Smart Card Reader (SCR) were introduced into the system to identify, authenticate and verify individual voters. Twitter and other social media platforms were highly exploited by both candidates and voters to air their views on the elections. This work adresses the design and implemention of a tool that delivers election data analytics from multiple data sources, which includes twitter, Voter Register (VR) and SCR Smart Card Readers (SCR) from 2015 general elections. The tweets are being processed by the extraction of metadata, geocoding the physical addresses and analyzing the sentiments of the content of each tweets. These results are further compared and combined with the data from VR and SCR into a front-end visualization applications. Ultimately we show relationship between the above data analytics and subsequent outcome of elections.

87-92

Authors: - IJCTI.Arockia Antonysamy

Due to the increasing popularity of cloud computing, more and more data owners are motivated to outsource their data to cloud servers for great convenience and reduced cost in data management. However, sensitive data should be encrypted before outsourcing for privacy requirements, which obsoletes data utilization like keyword-based document retrieval. In this paper, we present a secure multi-keyword ranked search scheme over encrypted cloud data, which simultaneously supports dynamic update operations like deletion and insertion of documents. Specifically, the vector space model and the widely-used TF_IDF model are combined in the index construction and query generation. We construct a special tree-based index structure and propose a “Greedy Depth-first Search” algorithm to provide efficient multi-keyword ranked search. The secure kNN algorithm is utilized to encrypt the index and query vectors, and meanwhile ensure accurate relevance score calculation between encrypted index and query vectors. In order to resist statistical attacks, phantom terms are added to the index vector for blinding search results. Due to the use of our special tree-based index structure, the proposed scheme can achieve sub-linear search time and deal with the deletion and insertion of documents flexibly. Extensive experiments are conducted to demonstrate the efficiency of the proposed scheme

97-104

Authors: - IJCTDankan Gowda V , Ramachandra A C

Anti-lock Braking system (ABS) is a safety and control tool implemented in vehicles that prevents the wheel lock-up during severe or panic braking. The existing ABS controls have the ability to control and regulate the level of pressure to optimally maintain the wheel slip within the vehicle stability range. However, the ABS shows strong nonlinear characteristics for which the vehicle equipped with existing controllers have a tendency to over steer and become unstable. In this paper a mathematical model of ABS with Bang-Bang control algorithm have been implemented in Simulink and extensive simulation studies is also performed to verify the effectiveness of the controller and the results shows that proposed controller is able to maintain the wheel slip at the desired reference value. The braking performance in both ABS mode and Non-ABS mode has been evaluated by simulation.