akram roshdi - Academia.edu (original) (raw)
Papers by akram roshdi
For thousands of years people have realized the importance of archiving and finding information. ... more For thousands of years people have realized the importance of archiving and finding information. With the advent of computers, it became possible to store large amounts of information; and finding useful information from such collections became a necessity. The field of Information Retrieval (IR) was born in the 1950s out of this necessity. Over the last forty years, the field has matured considerably. Several IR systems are used on an everyday basis by a wide variety of users. Information retrieval is become a important research area in the field of computer science. Information retrieval (IR) is generally concerned with the searching and retrieving of knowledge-based information from database. In this paper, we represent the various models and techniques for information retrieval. In this Review paper we are describing different indexing methods for reducing search space and different searching techniques for retrieving a information. We are also providing the overview of traditio...
Today, the world has become closer due to the development of Internet. More people communicate vi... more Today, the world has become closer due to the development of Internet. More people communicate via Internet, and the volume of data to be handled also grows. Nowadays, we talk about petaand zettabytes of data and this volume of data needs to be processed and analyzed further which had led to the research field of big data storage and analysis. Cloud computing is another emerging area in which the services such as infrastructure, storage, and software are provided to the consumers on demand basis. In this paper, we discuss about the big data, cloud computing, and how big data are handled in cloud computing environment. Furthermore, The definition, characteristics, and classification of big data along with some discussions on cloud computing are introduced. The relationship between big data and cloud computing, big data storage systems, and Hadoop technology are also discussed. Lastly, research challenges are investigated, with focus on scalability, availability, data integrity, data ...
Advances in Computer Science : an International Journal, 2015
Today, with the increasingly growing volume of text information, text classification methods seem... more Today, with the increasingly growing volume of text information, text classification methods seem to be essential. Also, increase in the volume of Persian text resources adds to the importance of this issue. However, classification works which have been especially done in Persian are not still as extensive as those of Latin, Chinese, etc. In this paper, a system for Persian text classification is presented. This system is able to improve the standards of accuracy, retrieval and total efficiency. To achieve this goal, in this system, after texts preprocessing and feature extraction, a new improved method of feature selection based on Particle Swarm Optimization algorithm (PSO) is innovated for reducing dimension of feature vector. Eventually, the classification methods are applied in the reduced feature vector. To evaluate feature selection methods in the proposed classification system, classifiers of support vector machine (SVM), Naive Bayes, K nearest neighbor (KNN) and Decision Tr...
For thousands of years people have realized the importance of archiving and finding information. ... more For thousands of years people have realized the importance of archiving and finding information. With the advent of computers, it became possible to store large amounts of information; and finding useful information from such collections became a necessity. The field of Information Retrieval (IR) was born in the 1950s out of this necessity. Over the last forty years, the field has matured considerably. Several IR systems are used on an everyday basis by a wide variety of users. Information retrieval is become a important research area in the field of computer science. Information retrieval (IR) is generally concerned with the searching and retrieving of knowledge-based information from database. In this paper, we represent the various models and techniques for information retrieval. In this Review paper we are describing different indexing methods for reducing search space and different searching techniques for retrieving a information. We are also providing the overview of traditio...
For thousands of years people have realized the importance of archiving and finding information. ... more For thousands of years people have realized the importance of archiving and finding information. With the advent of computers, it became possible to store large amounts of information; and finding useful information from such collections became a necessity. The field of Information Retrieval (IR) was born in the 1950s out of this necessity. Over the last forty years, the field has matured considerably. Several IR systems are used on an everyday basis by a wide variety of users. Information retrieval is become a important research area in the field of computer science. Information retrieval (IR) is generally concerned with the searching and retrieving of knowledge-based information from database. In this paper, we represent the various models and techniques for information retrieval. In this Review paper we are describing different indexing methods for reducing search space and different searching techniques for retrieving a information. We are also providing the overview of traditio...
Today, the world has become closer due to the development of Internet. More people communicate vi... more Today, the world has become closer due to the development of Internet. More people communicate via Internet, and the volume of data to be handled also grows. Nowadays, we talk about petaand zettabytes of data and this volume of data needs to be processed and analyzed further which had led to the research field of big data storage and analysis. Cloud computing is another emerging area in which the services such as infrastructure, storage, and software are provided to the consumers on demand basis. In this paper, we discuss about the big data, cloud computing, and how big data are handled in cloud computing environment. Furthermore, The definition, characteristics, and classification of big data along with some discussions on cloud computing are introduced. The relationship between big data and cloud computing, big data storage systems, and Hadoop technology are also discussed. Lastly, research challenges are investigated, with focus on scalability, availability, data integrity, data ...
Advances in Computer Science : an International Journal, 2015
Today, with the increasingly growing volume of text information, text classification methods seem... more Today, with the increasingly growing volume of text information, text classification methods seem to be essential. Also, increase in the volume of Persian text resources adds to the importance of this issue. However, classification works which have been especially done in Persian are not still as extensive as those of Latin, Chinese, etc. In this paper, a system for Persian text classification is presented. This system is able to improve the standards of accuracy, retrieval and total efficiency. To achieve this goal, in this system, after texts preprocessing and feature extraction, a new improved method of feature selection based on Particle Swarm Optimization algorithm (PSO) is innovated for reducing dimension of feature vector. Eventually, the classification methods are applied in the reduced feature vector. To evaluate feature selection methods in the proposed classification system, classifiers of support vector machine (SVM), Naive Bayes, K nearest neighbor (KNN) and Decision Tr...
For thousands of years people have realized the importance of archiving and finding information. ... more For thousands of years people have realized the importance of archiving and finding information. With the advent of computers, it became possible to store large amounts of information; and finding useful information from such collections became a necessity. The field of Information Retrieval (IR) was born in the 1950s out of this necessity. Over the last forty years, the field has matured considerably. Several IR systems are used on an everyday basis by a wide variety of users. Information retrieval is become a important research area in the field of computer science. Information retrieval (IR) is generally concerned with the searching and retrieving of knowledge-based information from database. In this paper, we represent the various models and techniques for information retrieval. In this Review paper we are describing different indexing methods for reducing search space and different searching techniques for retrieving a information. We are also providing the overview of traditio...