ABSTRACT We analyze a class of randomized Least-Recently-Used (LRU) cache replacement algorithms under the independent reference model with generalized Zipf’s law request probabilities. The randomization was recently proposed for Web caching as a mechanism that discriminates between different document sizes. In particular, a requested document that is not found in the cache either replaces a necessary number of least recently used documents with probability depending on its size or the cach...
ABSTRACT On-demand routing protocols use route caches to make routing decisions. Due to mobility, cached routes easily become stale. To address the cache staleness issue, prior work in DSR used heuristics with ad hoc parameters to predict the lifetime of a link or a route. However, heuristics cannot accurately estimate timeouts because topology changes are unpredictable. In this paper, we propose proactively disseminating the broken link information to the nodes that have that link in their c...
ABSTRACT Electronic circuit simulation uses mathematical models to replicate the behavior of an actual electronic device or circuit. Simulation software allows for modeling of circuit operation and is an invaluable analysis tool. Due to its highly accurate modeling capability, many Colleges and Universities use this type of software for the teaching of electronics technician and electronics engineering programs. Electronics simulation software engages the user by integrating them into the lea...
ABSTRACT File sharing is the practice of distributing or providing access to digitally stored information, such as computer programs, multi-media (audio, video), documents, or electronic books. It may be implemented through a variety of storage, transmission, and distribution models and common methods of file sharing incorporate manual sharing using removable media, centralized computer file server installations on computer networks, World Wide Web-based hyperlinked documents, and the use of ...
ABSTRACT This system provides online comprehensive solution for providing online registration services for Mathematics and Computer Science students, their courses and other registration procedural requirements. The system dedicates its resources to becoming the best Tertiary institution web based portal for students. The resources included in the portal were made with accuracy and efficiency in mind since the system is deemed to surpass the manual process in both simplicity and accuracy....
ABSTRACTIn a research conducted to ascertain the antimicrobial activity of watermelon (Citrullus lanatus) bark on organisms such as Escherichia coli, Slamonella typhi and Staphylococcus aureus using the ethanol and auqous extracts of the watermelon bark applying agar-well and pour-plate sensitivity technique. It was observed that the ethanoic extract (dry) of watermelon bark on agar well showed a high inhibitory activity of Staphylococcus aureus and Escherichia coli and shows a moderate in...
ABSTRACT This project deals with the design and implementation of an expert system for car faults diagnosis. The project is motivated by the need to guide car owners and learners motor mechanics in the maintenance and trouble shooting of motor problems without having to resort to presumptions and conjectures. Particularly, it is expected that the proposed design would ensure that car owners have proper assistance in times of crisis and what’s more will save them from the clutches of exploit...
ABSTRACTAs mobile phone handsets attain increasing capabilities, we see many more opportunities for novel applications development. These handsets are typically characterized as constrained computing platforms, due to limitations in computing, storage and interface capabilities. Specialized development environments, such as J2ME, allow for cross- platform development that respects these limitations. While it is important to respect these resource constraints, we also want to highligh...
ABSTRACT Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a streaming provider. The name refers to the delivery method of the medium rather than to the medium itself. The distinction is usually applied to media that are distributed over telecommunications networks, as most other delivery systems are either inherently streaming (e.g., radio, television) or inherently non-streaming (e.g., books, video cassettes, audio CDs). The v...
ABSTRACT The XTC ad-hoc network topology control algorithm shows three main advantages over previously proposed algorithms. First, it is extremely simple. Second, it does not assume the network graph to be a Unit Disk Graph; XTC proves correct also on general weighted network graphs. Third, the algorithm does not require availability of node position information. Instead, XTC operates with a general notion of order over the neighbors’ link qualities. In the special case of the network graph...
ABSTRACT Contemporary workflow management systems are driven by explicit process models, i.e., a completely specified workflow design is required in order to enact a given workflow process. Creating a workflow design is a complicated time-consuming process and, typically, there are discrepancies between the actual workflow processes and the processes as perceived by the management. Therefore, we have developed techniques for discovering workflow models. The starting point for such techniques ...
ABSTRACT This project is all about Windows management and instrumentation, Window is an operating system that is a typical example of free software and open source development. The source code of Window is available for anyone to use, modify, and redistribute freely. The many Window distributions differ for various reasons including technical, organizational, and philosophical. Technical variations include support for different hardware devices and systems or software package configurations. ...
ABSTRACT This study discusses factors affecting the customer value, and the performance of the WEBSHOP MAIL WEBSHOP SITE model. In our case, the biggest trading company in our country developed Webshop mail webshop site model to be taken into use in its supermarkets. The time was not yet right to implement the web shopping with shopping cart, but useful knowledge was gained as for the internal and external factors to be taken into account when planning WEBSHOP MAIL WEBSHOP SITE. The company...
ABSTRACT Internet Relay Chat, or IRC, is a means of chatting online in real-time through a client application like mIRC, through which data is sent via connected servers to various computers which are in turn connected to those servers all across the world. Internet Relay Chat (IRC) allows people across the world to chat in real-time with each other in virtual rooms over the Internet. In other words, IRC is an online communication system through which files and text can be transferred. It is ...
ABSTRACT Focusing on methods that are used to implement strong user authentication for online-consumer identities, this article aims to distill a comprehensive view of strong user authentication by examining its concepts, implementation approaches, and challenges/additional concerns at the architectural level. It discusses effective solution approaches, overall architecture design, and emerging developments. In many web applications, it is desirable to have users log in by giving some unique ...