Top 10 Symptoms That Your PC May Be Infected

How do you know if your computer has a virus, a worm, a trojan horse infection, spyware, malware, crimeware or any of the other known types of infection? Obviously, everyone's PC is different, so it is up to each person to keep an eye on the known and documented causes.
Although not all of the following symptoms will necessarily indicate your PC has an infection, if you note more than just one of them happening at the same time, there is a high probability and you would be advised to look into it further.
1. Performance is sluggish now compared to what it was when the computer was new. Unfortunately, there is no single cause; it is likely to be any of the following or a combination of them: virus, worm, spyware, Adware, rootkit (provides remote access to a PC without the user's knowledge).
2. PC taking longer to boot up. This happens anyway as you load more and more programs, especially if your computer is older and you're trying to run the latest resource hungry applications, but it's worth checking for malware or other infection that has been added to the start-up sequence.

Data Mining - A Short Introduction

Data mining is an integral part of data analysis which contains a series of activities that goes from the 'meaning' of the ideas, to the 'analysis' of the data and up to the 'interpretation' and 'evaluation' of the outcome. The different stages of the technique are as follows:
Objectives for Analysis: It is sometimes very difficult to statistically define the phenomenon we wish to analyze. In fact, the business objectives are often clear, but the same can be difficult to formalize. A clear understanding of the crisis and the goals is very important setup the analysis correctly. This is undoubtedly, one of the most complex parts of the process, since it establishes the techniques to be engaged and as such, the objectives must be crystal clear and there should not be any doubt or ambiguity.
Collection, grouping and pre-processing of the data: Once the objectives of the analysis are set and defined, we need to gather or choose the data needed for the study. At first, it is essential to recognize the data sources. Usually data are collected from the internal sources as the same are economical and more dependable and moreover these data also has the benefit of being the outcome of the experiences and procedures of the business itself.

Web Mining

With the bang of the era of information technology, we have entered into an ocean of information. This information blast is strongly based on the internet; which has become one of the universal infrastructures of information. We can not deny the fact that, with every passing day, the web based information contents are increasing by leaps and bounds and as such, it is becoming more and more difficult to get the desired information which we are actually looking for. Web mining is a tool, which can be used in customizing the websites on the basis of its contents and also on the basis of the user interface. Web mining normally comprises of usage mining, content mining and structure mining.
Data mining, text mining and web mining, engages various techniques and procedures to take out appropriate information from the huge database; so that companies can take better business decisions with precision, hence, data mining, text mining and web mining helps a lot in the promotion of the 'customer relationship management' goals; whose primary objective is to kick off, expand, and personalize a customer relationship by profiling and categorizing customers.