Statistical Forecasting in Business Term Paper Example | Topics and Well Written Essays - 1000 words

Statistical Forecasting in Business - Term Paper Example On the other hand, regression analysis in business forecasting answers the question â€Å"by how much†. In this regard, both simple and multiple regression analysis shows the relationship between the dependent variable against the independent variables (IV: within subject factors e.g. products differentiation, product prices etc.). A business normally comes up with a model based on its operations and then using the available historical data formulates a regression equation which can be used able to predict the future values. An example of a regression model is shown below;SV = ÃŽ ²0 + ÃŽ ²1P + ÃŽ ²2M+†¦+ ÃŽ ²nXi In this model, ÃŽ ²Ã¢â‚¬â„¢s are the coefficients of the various independent variables and which signifies the amount of dependent variable change (in this case sales volumes), either positive or negative, once one of the independent variable’s changes by a single unit. P, product differentiation, and M, market share, are examples of independent variables. ÃŽ ²n shows that the variables can be as many as possible depending on the business itself. According to Jain, C. L. (2000), business forecasting is normally completed through the application of data mining processes where models are used to predict future using existing/historical data from which business potential if projected based on different business activities as well as transactions. To Jain, the sole purpose of data mining is to establish the presence of predictive criteria which might be present if large volumes of historical data are used.

MySQL Information Technology Research Paper Example | Topics and Well Written Essays - 750 words

MySQL Information Technology - Research Paper Example The database of MySQL enables the users to develop a structure of relational database somewhere in the web-server so as to store information and do the necessary computing. When compared with the Microsoft Access, MySQL facilitates the users by organizing tables for them. Amongst other elements, the PHP serves as the queries. User’s forms play the role of individual web pages that contain fields. A combination of all these features allows the user to develop wonderful projects upon web which are very difficult to create without the use of MySQL. â€Å"The SQL part of â€Å"MySQL† stands for â€Å"Structured Query Language.† SQL is the most common standardized language used to access databases and is defined by the ANSI/ISO SQL Standard† (MySQL, 2011). Since the year 1986, SQL Standard has been evolving. Today, users can choose from numerous versions of SQL. MySQL is absolutely freely downloadable from the Internet and licensed by the GNU General Public Lic ense (GPL). GLP sets the rules for the use of MySQL in various situations. One of the most fundamental elements of MySQL that distinguish it from the conventional databases is its open source nature. Being open source, anybody can make use of and make alterations in the MySQL software. The source code can be altered as per the requirement of individual users. In a vast majority of cases, when a user already has a web-page or is getting one, PHP and MySQL are supported by the host. Servers which they are normally linked with include Linux. A user may check out the Dreamhost if he wants to gain the support of PHP and MySWL while getting his page. Some users have a difficult time dealing with the MySQL database because of their lack of prior interaction with the WYSIWYG interface which is afforded by the Microsoft Access. Therefore, when they have to develop tables, they either use SQL Statements for it or else, make use of some open source tool that can be downloaded from the Internet . Such tools are commonly referred to as the PHPMyAdmin. PHPMyAdmin provides the users with a user friendly interface which makes it easy for them to develop tables and forward their queries by providing the required information. This becomes particularly convenient for a user when he is tired or does not want to indulge in the lethargic SQL Statements. MySQL is significantly different in its properties, characteristics and uses from Microsoft Acess. After the creation of tables, it becomes very easy to use MySQL. MySQL far exceeds Microsoft Access in terms of both reliability and speed. In a relational database, data is kept in individual tables instead of one storeroom. This promotes flexibility and enhances the speed of the process. Microsoft Access is not much more than a system of desktop database. Small organizations can do with up to 20 users of Microsoft Access at one time, but hits as many as 10000 per day require a much more efficient and stronger system that is provided b y MySQL. The tables in MySQL can use real data unlike Microsoft Access. Need a text field that can hold over four billion characters? Not a problem, just use the LongText data type. Want the field to hold that many characters and be case-sensitive? Easy, just use the LongBlob data type. Need to store numbers from 0 to 18,446,744,073,709,551,615 (for those of you who are curious, that would be over 18 Quintillion), then use the BigInt data type. Indeed, 18 quintillion is a big integer. (Blue Moose