An Entity-Relationship Model (ERM) plays a central role in developing the structure of business s... more An Entity-Relationship Model (ERM) plays a central role in developing the structure of business systems. Due to abstract nature and high level of conceptual data, ER modeling is an overwhelming task for system analysts. With advancements in Artificial Intelligence, researchers have been trying to automate the process of generating ER diagram from problem statement in natural language such as English. This paper focuses on a technique to combine both syntactic analysis and semantic heuristics for extracting the major components such as entity, attribute, and relationof Entity-Relationship diagram. This can be done by evaluating various rules discovered by prior work and combining them effectively resulting into an efficient NLP engine.
Caesar cipher is an ancient, elementary method of encrypting plain text message into cipher text ... more Caesar cipher is an ancient, elementary method of encrypting plain text message into cipher text protecting it from adversaries. However, with the advent of powerful computers, there is a need for increasing the complexity of such techniques. This paper contributes in the area of classical cryptography by providing a modified and expanded version for Caesar cipher using knowledge of mathematics and computer science. To increase the strength of this classical encryption technique, the proposed modified algorithm uses the concepts of affine ciphers, transposition ciphers and randomized substitution techniques to create a cipher text which is nearly impossible to decode. It also increases the range of characters which Caesar cipher Algorithm can encrypt by including all ASCII and extended ASCII characters in addition to alphabets. A complex key generation technique which generates two keys from a single key is used to provide enhanced security. This paper aims to propose an enhanced ve...
1.Abstract Wikipedia is one of the world's biggest information sources, disseminating informa... more 1.Abstract Wikipedia is one of the world's biggest information sources, disseminating information on virtually every topic on earth. But the integrity of the information provided by Wikipedia is compromised by a relatively small amount of vandals i.e. individuals who carry out vandalism. Wikipedia defines vandalism as "any addition, removal, or change of content, in a deliberate attempt to compromise the integrity of Wikipedia"[1]. Since the end of 2009 many autonomous bots are running on Wikipedia to keep the encyclopedia free from vandalism and other damaging edits.These bots efficiently detect vandal articles and revert them to previous versions. Thesevandal articles are detected using advanced machine learning algorithms, artificial neural networks and natural language processing techniques. In this paper, a brief study is done of various methodologies used to detect vandalized articles and the best method which will detect vandalism most accurately and with a grea...
An Entity-Relationship Model (ERM) plays a central role in developing the structure of business s... more An Entity-Relationship Model (ERM) plays a central role in developing the structure of business systems. Due to abstract nature and high level of conceptual data, ER modeling is an overwhelming task for system analysts. With advancements in Artificial Intelligence, researchers have been trying to automate the process of generating ER diagram from problem statement in natural language such as English. This paper focuses on a technique to combine both syntactic analysis and semantic heuristics for extracting the major components such as entity, attribute, and relationof Entity-Relationship diagram. This can be done by evaluating various rules discovered by prior work and combining them effectively resulting into an efficient NLP engine.
Caesar cipher is an ancient, elementary method of encrypting plain text message into cipher text ... more Caesar cipher is an ancient, elementary method of encrypting plain text message into cipher text protecting it from adversaries. However, with the advent of powerful computers, there is a need for increasing the complexity of such techniques. This paper contributes in the area of classical cryptography by providing a modified and expanded version for Caesar cipher using knowledge of mathematics and computer science. To increase the strength of this classical encryption technique, the proposed modified algorithm uses the concepts of affine ciphers, transposition ciphers and randomized substitution techniques to create a cipher text which is nearly impossible to decode. It also increases the range of characters which Caesar cipher Algorithm can encrypt by including all ASCII and extended ASCII characters in addition to alphabets. A complex key generation technique which generates two keys from a single key is used to provide enhanced security. This paper aims to propose an enhanced ve...
1.Abstract Wikipedia is one of the world's biggest information sources, disseminating informa... more 1.Abstract Wikipedia is one of the world's biggest information sources, disseminating information on virtually every topic on earth. But the integrity of the information provided by Wikipedia is compromised by a relatively small amount of vandals i.e. individuals who carry out vandalism. Wikipedia defines vandalism as "any addition, removal, or change of content, in a deliberate attempt to compromise the integrity of Wikipedia"[1]. Since the end of 2009 many autonomous bots are running on Wikipedia to keep the encyclopedia free from vandalism and other damaging edits.These bots efficiently detect vandal articles and revert them to previous versions. Thesevandal articles are detected using advanced machine learning algorithms, artificial neural networks and natural language processing techniques. In this paper, a brief study is done of various methodologies used to detect vandalized articles and the best method which will detect vandalism most accurately and with a grea...
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Papers by Ronak Dedhia