Excellence for Data Mining in Egypt By: Aref Rashad I- Introduction The convergence of computer resources connected via a global network has created an information tool of unprecedented power‚ a tool in its infancy. The global network is awash with data‚ uncoordinated‚ unexplored‚ but potentially containing information and knowledge of immense economic and technical significance. It is the role of data mining technologies arising from many discipline areas to convert that data into information
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X will win is 60% and above.” Null Hypothesis “If X makes the first move then the probability of the player with X will win is less than 60%.” Data Collection and Preparation To prove or refute the hypothesis‚ data has to be collected. As we all know this step requires a great amount of time and effort. Also in order to build an effective model a data mining algorithm must be presented with a few hundred or few thousands relevant/applicable records. As mentioned above there are thousands of winning
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Business Rules and Data Models Strayer University CIS-111 Prof. A database is a structure that contains information about many different categories of information and about the relationships between those categories (Pratt & Adamsk 2010). Database objects are entities that exist within a database to support operations such as storing‚ retrieving and manipulating data. Organizations use large amounts of data and database management system to store and transform data into information to support
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Generic Data Compression Techniques Data compression schemes fall into two categories. Some are lossless‚ others are lossy. Lossless schemes are those that do not lose information in the compression process. Lossy schemes are those that may lead to the loss of information. Lossy techniques provide more compression than lossless ones and are therefore popular in settings in which minor errors can be tolerated‚ as in the case of images and audio. In cases where the data being compressed consist
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The term data refers to qualitative or quantitative attributes of a variable or set of variables. Data‚ which is the plural of datum are typically the results of measurements and can be the basis of graphs‚ images‚ or observations of a set of variables. Data are often viewed as the lowest level of abstraction from which information and then knowledge are derived. Raw data refers to a collection of numbers‚ characters‚ images or other outputs from devices that collect information to convert physical
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Chapter 1: Database Systems TRUE/FALSE 1. Data and information are essentially the same thing. ANS: F PTS: 1 REF: 5 2. Data processing can be as simple as organizing data to reveal patterns. ANS: T PTS: 1 REF: 6 3. We are now said to be entering the “knowledge age.” ANS: T PTS: 1 REF: 6 4. Information implies familiarity‚ awareness‚ and understanding knowledge as it applies to an environment. ANS: F PTS: 1 REF: 6 5. Data constitute the building blocks of information
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Chapter 3 – Data Visualization Chapter 4 – Summary Statistics Data Mining for Business Intelligence Shmueli‚ Patel & Bruce © Galit Shmueli and Peter Bruce 2010 Data Visualization • “A picture is worth a thousand words” • Data visualization and summary statistics help condense data • Effective presentation • Supports data cleaning (identify missing values‚ outliers‚ incorrect values‚ duplicates) and exploring (combine some groups) • Helps identify suitable variables • Mandatory initial step for
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System Concepts for Data Modeling Crystal M. Reedus CIS 210 November 21‚ 2010 Abstract Data modeling techniques and methodologies are used to model data in a standard‚ consistent‚ predictable manner in order to manage it as a resource. Data models support data and computer systems by providing the definition and format of data. From a modeling perspective‚ the entire problem domain is viewed as a collection of class hierarchies (of objects) that are connected by messages. Data modeling techniques
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Week 1 Project: Working With the Data Editor. I opened week 1 Technology Application from Doc Sharing. Downloading Statdisk 1) First go to the website www.statdisk.org and then scroll down to the bottom of the page to download the Statdisk program version 11.1.0 by clicking on the windows or the MAC version. It should look like the following. Choose the correct version for your computer. I went to www.statdisk.org and downloaded stat disk 11.1.0 mac OSX version
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Data Input and Output Essay The methods of input of data may vary consistently. For instance‚ for printed questionnaires‚ the traditional method of input implies the use of computers’ keyboard by means of which the information that is supposed to be printed in a questionnaire is input. The same method may be used for long documents‚ though this may imply the use of different software applications. For instance‚ for printed questionnaires the simplest word processors may be used‚ while long documents
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