Vol 2 Issue 4 October 2014-December 2014

Abstract: Scheduling is a central activity of a computer system, usually performed by the operating system. Fixed-priority scheduler is the Polling-server in rate monotonic scheduling algorithm, which assigns higher priorities to tasks with shorter relative deadlines. It is intuitive to see that if every task’s period is the same as its deadline, then the RM and DM scheduling algorithms are equivalent. Hard real-time systems have been defined as those containing processes that have deadlines that cannot be missed. Such deadlines have been termed hard: they must be met under all circumstances otherwise catastrophic system failure may result. To meet hard deadlines implies constraints upon the way in which system resources are allocated at runtime. This includes both physical and logical resources. Conventionally, resource allocation is performed by scheduling algorithms whose purpose is to interleave the executions of processes in the system to achieve a pre-determined goal. For hard real-time systems the obvious goal is that no deadline is missed. Polling Server monotonic priority ordering is similar in concept to rate monotonic priority ordering. Priorities assigned to processes are inversely proportional to the length of the deadline. Thus, the process with the shortest deadline is assigned the highest priority, the longest deadline process the lowest priority. This priority ordering defaults to a rate monotonic ordering when period=deadline.

Keyword: scheduling, priority, monotonic, catastrophic.

Title: IMPLEMENTATION OF ‘POLLING SERVER’ IN RT SCHEDULING

Author: Prof.G.K.Gaikwad, Prof.B.S.Chaudhary

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can't. The term CAPTCHA (for Completely Automated Turing Test to Tell Computers and Humans Apart) was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University. At the time, they developed the first CAPTCHA to be used by Yahoo. ReCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. This is possible because most OCR programs alert you when a word cannot be read correctly.

Keyword: CAPTCHA, automated, digitizing, decipher, OCR.

Title: Technique to CAPTCHA Recognition

Author: Prof.G.K.Gaikwad, Prof.B.S.Chaudhary

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: Cooperative communication has received tremendous interest for wireless networks. Most existing works on cooperative communications are focused on link-level physical layer issues. Consequently, the impacts of cooperative communications on network-level upper layer issues, such as topology control, routing and network capacity, are largely ignored. In this article, we propose a Capacity-Optimized Cooperative (COCO) topology control scheme to improve the network capacity in MANETs by jointly considering both upper layer network capacity and physical layer cooperative communications. Through simulations, we show that physical layer cooperative communications have significant impacts on the network capacity, and the proposed topology control scheme can substantially improve the network capacity in MANETs with cooperative communications.

Keywords: Cooperative communication, Capacity-Optimized, capacity in MANETs, simulations.

Title: Topology Control in Mobile Ad-Hoc Networks by Using Cooperative Communications

Author: S.Shahinsha, Mr.M.Sri Raghavendra

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: Recommendation techniques are very important in the fields of E-commerce and other Web-based services. One of the main difficulties is dynamically providing high-quality recommendation on sparse data. In this paper, a novel dynamic personalized recommendation algorithm is proposed, in which information contained in both ratings and profile contents are utilized by exploring latent relations between ratings, a set of dynamic features are designed to describe user preferences in multiple phases, and finally a recommendation is made by adaptively weighting the features. Experimental results on public datasets show that the proposed algorithm has satisfying performance.

Keywords:  E-commerce, Web-based, public data sets.

Title: Dealing with Sparse Data: A Dynamic Proposal

Author: Mirza Hameed Baig, Mr.B.Sunil Srinivas, Mr.E.Venkataramana

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: Current Authentication schemes suffer many weaknesses.  Textual passwords are widely used; but this textual passwords easy to break and vulnerable to dictionary attacks or brute force attacks. Available Authentication schemes face many problems. Graphical passwords face lack of space. Smart cards or tokens can be lost or prone to theft. Many biometric authentication schemes have been proposed but users tend to resist using that because of their intrusiveness on their privacy. In this paper, we describe the method for implementing connectionless approach for stronger authentication. The proposed Grid-Pin scheme is two-factor authentication scheme which is totally based on knowledge based authentication scheme. It combines current existing textual password scheme and Grid based scheme in which user has to enter his/her PIN (Personal Identification Number) into PIGP( Personal Identification Grid Pattern) out of matrix 4*4 to login his/her account. This is a simple approach for a secure authentication which reduces the probability of breaking textual passwords to a large extent. The main purpose of this method is to provide the stronger authentication to organization’s personal data. The secure method guarantees that Authenticating to services like ATM machine is done in very secure manner.

Keywords: Brute Force Attack, Dictionary Attack Authentication, PIN (Personal Identification number), pigp (personal identification grid pattern).

Title: Design & Development of Two Factor Hash Based Authentication Framework

Author: Sunaina Oberoi, Harmandeep Singh

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: Distributed cloud servers are composed of processes, located on one or more locations that communicate with one another to offer services to front layer applications. A major difficulty computing paradigm has significantly changed the dimension of risks on user’s applications, specifically because the failures like server overload, network congestion, hardware faults that manifest in the data centers and data is difficult to collect. The thesis proposes an Efficient Geographic Multicast Protocol (EGMP) algorithm requires fault tolerance abilities so that they can overcome the impact of failures and perform their functions correctly when failures happen.  In these systems when they are prone to process failures, two distributed computing models have received significant attention, namely, a fault tolerance mechanisms and replication mechanism. The Efficient Geographic Multicast Protocol (EGMP) also supports secure and robust data storage and retrieval, and user forward his data in the storage servers to another user without retrieving the data back. The EGMP locates the data in distributed clouds based on the geographic locations and based on the counts of server. So the complete data will not be present in the single server. It analyzes and suggests suitable locations for the number of copies of a message dispatched to storage servers and the number of storage servers queried by a key server.

Keywords: Cloud computing, fault tolerance as a service, EGMP, storage servers.

Title: Flaw Indulgence in Cloud Computing For Secure Data Transmission

Author: S. Umadevi MCA., M. Geetha MCA., M. Phil

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: Underwater sensor nodes will always have applications in underwater data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation and tactical surveillance applications. Underwater networks consist of a variable number of sensors and vehicles that are deployed to perform collaborative monitoring tasks over a given area. In this paper, several fundamental protocols used for underwater communication are compared and a new protocol better than the older ones is proposed. Different architectures for two-dimensional and three-dimensional underwater sensor networks are discussed, and characteristics of proposed protocol are discussed. The main challenges for the development of efficient networking solutions posed by the underwater environment are detailed and a cross-layer approach to the integration of all communication functionalities is suggested. Furthermore, open research issues are discussed and possible solution approaches are outlined.

Keywords: Underwater sensor network, Routing, Flooding Multipath, Cluster, AUV (autonomous underwater vehicle).

Title: Low Propagation Delay Routing Protocol for Acoustic Underwater Sensors Network

Author: Madhu Chhikara, Kiran Narang

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: A vampire attack is caused by the malicious node on the decentralized ad hoc wireless network. The paper analyses how protocols faces these attacks. Vampire attacks are not protocol specific rather uses its compliant message. The current security measures to prevent these attacks are been reviewed along with result of simulation of representative protocols in the presence of a vampire attack is been presented. The paper also describes how the existing sensor network protocol is been modified for protection from the vampire attacks for which PLGP solution is also been proposed.

Keywords: ad hoc, protocol, carousel attack, stretch attack, PLGP.

Title: VAMPIRE ATTACKS IN WIRELESS SENSOR NETWORKS: EVALUATION AND PROTECTION

Author: Farheen Fatima, L Sunitha, E.Venkata Ramana

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: With the increasing use of web platform such as web blogs, wikis, discussion forums, various other types of social media. People began to share their opinion and experience about product or services on World Wide Web. In this study, we introduce an architecture, implementation, and evaluation of a Web blog mining application, called the Blog Miner, which extracts and classifies people’s opinions and emotions (or sentiment) from the contents of weblogs about movie reviews. As per information visualization with the movie's trend of audiences and reviews becomes important. Movie makers are not only want to know their movie's popularity based on the number of audiences but also check their movie’s evaluation from people who see the movies. If they hope that the movie is a box office hit, they should identify the correlations between audiences and reviews. Here, the system lets the user select a movie and then shows the sentiment score results in a graph.

Keywords:  Web blog, Blog mining, Opinion mining, Sentiment analysis, Web Crawler.

Title: “Analysis and Visualization of Total Movie Review System Using Sentiment Analysis”

Author: Mayuri R.Lahamage

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: The emergence of Google Glass, a prototype for a transparent Heads-Up Display (HUD) worn over one eye, is significant. It is the first conceptualization of a mainstream augmented reality wearable eye display by a large company. This paper argues that Glass’s birth is not only a marketing phenomenon heralding a technical prototype, it also argues and speculates that Glass’s popularization is an instigator for the adoption of a new paradigm in human-computer interaction, the wearable eye display. Google Glass is deliberately framed in media as the brainchild of Google co-founder Sergey Brin. Glass’s process of adoption operates in the context of mainstream and popular culture discourses, such as the Batman myth, a phenomenon that warrants attention. Project Glass is a research and development program by Google to develop an augmented reality Head-Mounted Display (HMD). The intended purpose of Project Glass products would be the hands-free displaying of information currently available to most smartphone users, and allowing for interaction with the Internet via natural language voice commands. These glasses will have the combined features of virtual reality and augmented reality.

Keywords:  Heads up display, instigator, and head mounted display

Title: Google GLASS

Author: Shubham chhabra, Shubham kumar patel, vishal Sharma, Toshar

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract:  For wireless sensor networks, data aggregation scheme minimize a large amount of transmission data to the base station, so that improve the energy efficiency and prolong the wireless network lifetime.CDA provides end-to-end security.ie. even though the sensed data are encrypted on the sensor nodes and not decrypted before the sink node In this paper, all the homomorphic encryption techniques and various attacks is categorized, but CDA schemes are not satisfy multi-application environments and not provide secure counting; so they may suffer unauthorized aggregation attacks Therefore, a new concealed data aggregation scheme based on homomorphic public encryption system. CDAMA is designed by using multiple points, each of which has different order. The security of CDAMA are based on the hardness assumption of subgroup decision problem Database-as-a-Service model is a specific instance of an outsource database model where by clients do not have the necessary resources to manage their own databases choose to outsource them to database service providers.

Keywords: Homomorphic encryption, Concealed data aggregation, wireless sensor networks

Title: Secure and Effective Technique CDAMA Scheme in Wireless Sensor Network Using DAS Model

Author: Satyaprakash Mishra, Sonu Agrawal

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: A Computer Network is an interconnected group of autonomous computing nodes, which use a well defined, mutually agreed set of rules and conventions known as protocols, interact with one-another meaningfully and allow resource sharing preferably in a predictable and controllable manner. Communication has a major impact on today’s business.  It is desired to communicate data with high security. Security Attacks compromises the security and hence various Symmetric and Asymmetric cryptographic algorithms have been proposed to achieve the security services such as Authentication, Confidentiality, Integrity, Non-Repudiation and Availability. At present, various types of cryptographic algorithms provide high security to information on controlled networks. These algorithms are required to provide data security and users authenticity.  To improve the strength of these security algorithms, a new security protocol for on line transaction can be designed using combination of both symmetric and asymmetric cryptographic techniques. This protocol provides three cryptographic primitives such as integrity, confidentiality and authentication. These three primitives can be achieved with the help of Elliptic Curve Cryptography, Dual-RSA algorithm and Message Digest MD5. That is it uses Elliptic Curve Cryptography for encryption, Dual-RSA algorithm for authentication and MD-5 for integrity.   This new security protocol has been designed for better security with integrity using a combination of both symmetric and asymmetric cryptographic techniques.

Keywords: Network Security, Elliptic Curve Cryptography, Dual-RSA, Message Digest-5.

Title: A Hybrid Security Protocol Using Python

Author: Devi.V.Kumar

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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Abstract: Apache Hadoop is a software framework that supports data-intensive distributed application under a free license. It enables applications to work with thousands of nodes and petabytes of data. Hadoop was inspired by Google’s MapReduce and Google File System (GFS) papers. Hadoop was originally developed to support distribution for the Nutch search engine project. Here Hadoop is incorporated for handling large cluster of images. Moreover, Hadoop provide language independent platform which helps the programmer to remain in their comfort zone. Here I discussed the cloudera installation of Hadoop and here I present the design, implementation and evaluation of Hadoop thumbnail creation model that supports incremental job expansion. Under this model, a job consumes input as required and can dynamically govern its resource consumption while producing the required results. I have implemented the mechanism in Hadoop, and I present results from an experimental performance study of normal and Hadoop model for creating thumbnails.

Keyword: Cloudera, SSH, MapReduce, HDFS.

Title: THUMBNAIL IMAGE CREATION IN HADOOP USING PYTHON

Author: Devi.V.Kumar

International Journal of Computer Science and Information Technology Research

ISSN 2348-120X (online), ISSN 2348-1196 (print)

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