Nguyen Phong Due Date: January 25‚ 2011 16:00 HOANG Nguyen Phong 12410179 Page 1 Mathematics for Information Technology EA I. Getting and Processing data from Twitter: Firstly‚ by “import tool” in NodeXL plug-in for Microsoft Excel‚ I searched for people whose tweets contains the key word “Julian Assange”‚ and ticked to all of three boxes “Follows”‚ “Replies-to”‚ and “Mentions relation” with the 100 people limitation so that I could get a stronger-connected graph. However‚ in some first
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Digital Transmission of Digital Data Digital Transmission of Digital Data Digital Data -- can be represented electronically(by sequences of specified voltage levels) or optically Digital Transmission -- sending of information over a physical communications media in the form of digital signals. Page 2 Digital Transmission of Digital Data Computers produce binary data Standards needed to ensure both sender and receiver understands this data Codes: digital combinations
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NAME: ___________________________ SECTION: _____________ I. Multiple Choice: Encircle the best answer. (20 pts) 1. It is a data structure that contains an undefined number of elements a. Static array b. Stacks c. Dynamic array d. Pointers 2. Given the expression 2 / 5 * 6 / ( 7 + 8 – 9 * 1 ) – 2 * 3‚ its postfix equivalent is: a. 2 5 / 6 * z 8 / 9 1 * – 2 3 * – b. 2 5 / 6 * z 8 + 9 1 * – 2 3 / * – c. 2 5 / 6 * z 8 + 9 1* – / 2 3 * – d. 2 5 6 * / z 8+ 9 1 * – / 2 3 *
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DATA MINING REPORT A Comparison of K-means and DBSCAN Algorithm Data Mining with Iris Data Set Using K-Means Cluster method within Weak Data Mining Toolkit. Team Task ......................................................................................................................................... 3 1.0 Introduction ................................................................................................................................. 3 2.0 Related Works ................
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Limitations of Data Mining Data mining is one of the more efficient tools when it comes to looking for specific characteristics over large amounts of data. It is as simple as typing in certain keywords and the words being highlighted in certain articles and other data. Data mining however‚ is not nearly a perfect process. It has certain limitations and capabilities that can vary by situation. The article N.Y. bomb plot highlights limitations of data mining‚ brought up a few very good points
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mywbut.com Data Flow Diagrams (DFDs) 1 mywbut.com Specific Instructional Objectives At the end of this lesson the student will be able to: • • • Identify the activities carried out during the structured analysis phase. Explain what a DFD is. Explain why constructing DFDs are important in arriving at a good software design. • Explain what a data dictionary is. • Explain the importance of data dictionary. • Identify whether a DFD is balanced. Structured Analysis Structured analysis
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Data Collection Methods III Questionnaires A questionnaire is a preformatted written set of questions to which respondents record their answers usually within rather closely defined alternatives. Questionnaires are an efficient data collection mechanism when the researcher knows exactly what is required and how to measure the variables of interest. Questionnaires can be administered personally‚ mailed to the respondents‚ or electronically distributed. Guidelines for Questionnaire Design
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Case Study: A Data Warehouse for an Academic Medical Center Jonathan S. Einbinder‚ MD‚ MPH; Kenneth W. Scully‚ MS; Robert D. Pates‚ PhD; Jane R. Schubart‚ MBA‚ MS; Robert E. Reynolds‚ MD‚ DrPH ABSTRACT The clinical data repository (CDR) is a frequently updated relational data warehouse that provides users with direct access to detailed‚ flexible‚ and rapid retrospective views of clinical‚ administrative‚ and financial patient data for the University of Virginia Health System. This article presents
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Data Collection and Analysis Grid * Use the two articles assigned by your facilitator to identify the following data collection‚ analysis‚ and measurement elements for the studies. Limit each box to no more than three sentences. * * | * Qualitative | * Quantitative | * Data collection methods | * This qualitative study used a focus group interview as the main data collection method with a semi-structured design. | * The study employed an experimental pre-test/post-test
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Data Warehouse Testing By : Kartikey Brahmkshatriya (M.C.A) Index 1. Introduction 3 2. About Data Warehouse 3 2.1 Data Warehouse definition 3 3. Testing Process for Data warehouse: 3 3.1 Requirements Testing : 3 3.2 Unit Testing : 4 3.3 Integration Testing : 4 3.3.1 Scenarios to be covered in Integration Testing 5 3.3.2 Validating the Report data 5 3.4 User Acceptance Testing 5 4. Conclusion 5 Introduction This document details the testing
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