arXiv subjects

Umakant Mishra

Publications and source records attributed to Umakant Mishra.

41 records · Page 3Linked to original sources

arXiv2013

10 Inventions on keyboard attachments-A TRIZ based analysis

Although the primary objective of the keyboard to input data into the computer, the advanced keyboards keep various other things in mind, such as, how to use the same keyboard for various other purposes, or how to use the same keyboard efficiently by using various other attachments to the keyboard. This objective led to various inventions on keyboard attachments, some of which are illustrated below in this article. This article illustrates 10 inventions on various keyboard attachments from US patent database. Each different attachment improves the usability of the keyboard in some way or other. Some attachments illustrated are template holders, paper holders, pointing device attachments, mouse pad attachments, wrist rest attachments, storage device attachments, and multimedia attachments.

cs.HC↗

arXiv2013

How to Build an RSS Feed using ASP

RSS is a XML based format. The Current popular version of RSS is RSS version 2.0. The purpose of adding an RSS feed to your site is to show if anything new is added to the site. For example, if a new article or blog or news item is added to your site that should automatically appear in the RSS feed so that the visitors/ RSS readers will automatically get updated about this new addition. The RSS feed is also called RSS channel. There are two main elements of the RSS XML file, one is the header or channel element that describes the details about the site/feeder and other is the body or item element that describes the consists of individual articles/entries updated in the site. As the format of the RSS feed file is pretty simple, it can be coded in any language, ASP, PHP or anything of that sort. We will build an RSS feeder using classical ASP (Active Server Pages) code in this article.

cs.OH↗

arXiv2013

Finding and Solving Contradictions of False Positives in Virus Scanning

False positives are equally dangerous as false negatives. Ideally the false positive rate should remain 0 or very close to 0. Even a slightest increase in false positive rate is considered as undesirable. Although the specific methods provide very accurate scanning by comparing viruses with their exact signatures, they fail to detect the new and unknown viruses. On the other hand the generic methods can detect even new viruses without using virus signatures. But these methods are more likely to generate false positives. There is a positive correlation between the capability to detect new and unknown viruses and false positive rate. While a traditional approach tries to achieve a right balance between false positives and false negatives a TRIZ approach looks forward to achieve the Ideal Final Result. The Ideal final result is to 'detect and prevent viruses with full certainty. The chances of error should be nil and the method should not raise any false positive or false negative.' The article shows many contradictions relating to false positives and their solutions.

cs.CR↗

arXiv2013

Contradictions in Improving Speed of Virus Scanning

Although everything in computing industry moves faster including the processor, memory speed, memory size, storage space etc. there is no improvement in virus scanning time. Although the processing speed has substantially increased, a typical full scanning is still taking several hours for an average computer. There is a serious need to improve the scanning time. Contradiction is a stage of problem solving where the nature of the actual problem is clearly explained in terms of at least two parameters, one improving and another worsening. While emphasizing one parameter strengthens the system position emphasizing another parameter weakens the system. In conventional methods a problem solver has to make a perfect balance between these conflicting parameters, where the situation is neither too much on one side nor too much on the other. The results of those methods, although increase the speed of virus scanning, results in disadvantages like load on processor, increase in false positives and compromise on security. The objective of TRIZ is not to accept a tradeoff between the speed of scanning and those other difficulties but to resolve the contradictions so that the speed of scanning increases without compromising with security and other harmful results.

cs.CR↗

arXiv2013

Methods of Repairing Virus Infected Files, A TRIZ based Analysis

Most viruses are capable of fixing up the first few bytes and repair the original program because they have to return the control back to the infected program. This fact is used by a heuristic cleaner to clean the infected file. As the virus knows how to repair the it uses the same virus to repair the infected file. There are some infections where parts of the files are damaged by the virus. These types of infections are caused by 'file modifying viruses'. In these cases, the chance of recovery is less, but the anti-virus has to apply various methods with hope. The virus cleaner must know the characteristics of a virus in order to remove that virus. It cannot remove an unknown virus whose methods of infection are not known. If a virus is wrongly detected to be a different virus, then the cleaner will do wrong operations and build a garbage file.

cs.CR↗