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Articles 31 - 38 of 38
Full-Text Articles in Databases and Information Systems
G-Value Decoding Of Greedy Codes, Khalil Ahmad
G-Value Decoding Of Greedy Codes, Khalil Ahmad
International Conference on Information and Communication Technologies
Error-correcting codes are widely used to increase the reliability of transmission of information over various forms of communication channels. Codes with a given minimum distance d can be constructed by a greedy algorithm [2]. In this paper, I proposed a new algorithm for the allocation of g-values to the binary vectors. Hamming (7, 4, 3) code can be generated by the application of greedy algorithm on the binary vectors of length 7 arranged in B-ordering. This code is used to demonstrate a new decoding technique for linear codes in addition to the schemes already known for decoding such as Syndrome …
Optimization Of Semantic Caching For Xml Database, Sharifullah Khan, Awais Hamid
Optimization Of Semantic Caching For Xml Database, Sharifullah Khan, Awais Hamid
International Conference on Information and Communication Technologies
The availability of information on the Internet has increased exponentially the Internet users in the last few years. This made the web servers overloaded. Semantic caches store the semantics and results of the previously asked queries close to the users, in order to answer new queries. The caching reduces the burden of the web servers and optimizes their performance. This paper presents the SMOCE Cache, a framework for semantic caching of XML database. Specialized techniques such as indexing and broadening of semantic regions are proposed for the optimization of semantic caching. The evaluation of prototype proved the significance of proposed …
A Dynamic Weight Assignment Approach For Ir Systems, M. Shoaib, Prof Dr. Abad Ali Shah, A. Vashishta
A Dynamic Weight Assignment Approach For Ir Systems, M. Shoaib, Prof Dr. Abad Ali Shah, A. Vashishta
International Conference on Information and Communication Technologies
Weights are assigned to the extracted keywords for partial matching and computing ranking in an IR system. Weight assignment technique is suggested by the IR model that is used for an IR system. Currently suggested weight assignment techniques are static which means that once weight is assigned a keyword it remains unchanged during life-span of an IR system. In this paper, we suggest a dynamic weight assignment technique. This technique can be used by any IR model that supports partial matching.
Study Of Data Provenance And Annotation Model For Information Reliability Suggested For Pathological Laboratory Environment In Pakistan, Naila Aamir, Aslam Pervez
Study Of Data Provenance And Annotation Model For Information Reliability Suggested For Pathological Laboratory Environment In Pakistan, Naila Aamir, Aslam Pervez
International Conference on Information and Communication Technologies
Trust and reliability of information is a very critical issue of today's information age. Keeping provenance of data not only ensures us about its origination but it also keeps track of all the changes that happen to the data through out its life cycle. In this paper we have discussed the importance of data provenance, difference between Where & Why Provenance and different models for keeping such information. The objective of this study is to select a provenance model which can be implemented in scientific environment of our country. For this purpose we have taken the annotation model and have …
Ergonomics: Implications On Computer End-Users, Maheen Ghauri, Dr. Arshad Siddiqi
Ergonomics: Implications On Computer End-Users, Maheen Ghauri, Dr. Arshad Siddiqi
International Conference on Information and Communication Technologies
Ergonomics is the application of scientific information related to humans to the design of objects, systems and environment for human use. The objective is to apply human characteristics to the design of computer-based work environments to reduce problems of people at work. Lack of ergonomics has serious repercussions on end-users, including physical and mental illnesses. Using ergonomics to design computer-intensive environments would maximize efficiency, productivity and job satisfaction of employees. Unfortunately, in the Government Sector in Pakistan, there is no application of ergonomics in computer-based environments, and this leads to inefficiencies, errors, and safety and health issues. The purpose of …
Visualization Of Retrieved Positive Data Using Blending Function, Muhammad Shoaib, Habib -Ur- Rehman, Dr. Abad Ali Shah
Visualization Of Retrieved Positive Data Using Blending Function, Muhammad Shoaib, Habib -Ur- Rehman, Dr. Abad Ali Shah
International Conference on Information and Communication Technologies
Data visualization is an important technique used in data mining. We present the retrieved data into visual format to discover features and trends inherent to the data. Some features of the data to be retrieved are already known to us. Visualization should preserve these known features inherent to the data. Positivity is one such known feature that is inherent to most of the scientific and business data sets. For example, mass, volume and percentage concentration are meaningful only when they are positive values. However certain visualization techniques do not guarantee to preserve this feature while constructing visualization of retrieved data …
Keynote: Role Of Values & Culture In Information Technology, Prof. Dr. Anis Ahmad
Keynote: Role Of Values & Culture In Information Technology, Prof. Dr. Anis Ahmad
International Conference on Information and Communication Technologies
It is no longer unusual to see, in a remote town in northern area in Pakistan, a practically non-literate wagon driver calling from his Nokia cell phone his uncle in Dubai or in Karachi. He enjoys sharing with him about his success in business and the settlement of family disputes. While he is driving on dangerous curvy roads and having this conversation, in the back seat of the wagon a comparatively young person is playing games on his cell phone. All this was unimaginable a quarter of a century ago.
Keynote: Hexagonal Structure For Intelligent Vision, Xiangjian He, Wenjing Jia
Keynote: Hexagonal Structure For Intelligent Vision, Xiangjian He, Wenjing Jia
International Conference on Information and Communication Technologies
Using hexagonal grids to represent digital images have been studied for more than 40 years. Increased processing capabilities of graphic devices and recent improvements in CCD technology have made hexagonal sampling attractive for practical applications and brought new interests on this topic. The hexagonal structure is considered to be preferable to the rectangular structure due to its higher sampling efficiency, consistent connectivity and higher angular resolution and is even proved to be superior to square structure in many applications. Since there is no mature hardware for hexagonal-based image capture and display, square to hexagonal image conversion has to be done …