University CS 450 Data Mining‚ Fall 2014 Take-Home Test N#1 Date: September 22nd‚ 2014 Final deadline for submission September 29th‚ 2014 Weighting: 5% Total number of points: 100 Instructions: 1. Attempt all questions. 2. This is an individual test. No collaboration is permitted for assessment items. All submitted materials must be a result of your own work. Part I Question 1 [20 points] Discuss whether or not each of the following activities is a data mining task.
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CRYPTOGRAPHY INTRODUCTION Cryptography is the branch of science that deals with data security relating to encryption and decryption. This science has been in existence about 4000 years ago with its initial and limited use by the Egyptians‚ to the twentieth century where it played a crucial role in the outcome of both world wars. Cryptography was used as a tool to protect national secrets and strategies. DES‚ the Data Encryption Standard‚ is an adoption with the Federal Information Processing Standard
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Data Mining On Medical Domain Smita Malik‚ Karishma Naik‚ Archa Ghodge‚ Shivani Gaunker Shree Rayeshwar Institute of Engineering & Information Technology Shiroda‚ Goa‚ India. Smilemalik777@gmail.com; naikkarishma39@gmail.com; archaghodge@gmail.com; shivanigaunker@gmail.com Abstract-The successful application of data mining in highly visible fields like retail‚ marketing & e-business have led to the popularity of its use in knowledge discovery in databases (KDD) in other industries
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Introduction to Data Mining Assignment 1 Ex1.1 what is data mining? (a) Is it another hype? Data mining is Knowledge extraction from data this need for data mining has arisen due to the wide availability of huge amounts of data and the imminent need for turning such data into useful information and knowledge. So‚ data mining definitely is not another hype it can be viewed as the result of the natural evolution of information technology. (b) Is it a simple transformation of technology developed
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DATA COMMUNICATION (Basics of data communication‚ OSI layers.) K.K.DHUPAR SDE (NP-II) ALTTC ALTTC/NP/KKD/Data Communication 1 Data Communications History • 1838: Samuel Morse & Alfred Veil Invent Morse Code Telegraph System • 1876: Alexander Graham Bell invented Telephone • 1910:Howard Krum developed Start/Stop Synchronisation ALTTC/NP/KKD/Data Communication 2 History of Computing • 1930: Development of ASCII Transmission Code • 1945: Allied Governments develop the First Large Computer
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Discussion Board 1 Research and describe 5 data collection techniques in your own words. Be sure to cite any sources you used in APA format. Answer the following questions: Why is the examination of collected data so important? How are statistics used in the field of criminal justice? There are so many ways to collect data that do not involve the common ways in a direct manner. We as individual people collect and store our memories in a few ways‚ and that is all data as well. Many people use their own
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and cross talk on a cabling medium are factors that prevent the accuracy of transmitted data to be intact. For these reasons different encoding methods exist. An example is when 2 wires are used to transmit music data to a speaker Digital signals don’t always have to be carried over to the receiving end by electricity‚ light can also be used for digital communication. Fibre Optics use light to transmit data through optical fibre within the cable. The strength of the light ray can also be a determining
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Relationship Between Data and Information Data and information are the crucial key elements of information science and information engineering. Using the concepts of information engineering and science helps to develop information systems. Data and information are the common words used in the information and health science world. This paper will help us to understand about data‚ information‚ and their relationship‚ and how effectively they are used in the information systems world. Data are just facts
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PROCESSING OF DATA INTRODUCTION Data processing is an intermediary stage of work between data collection and data analysis. The completed instruments of data collection‚ viz.‚ interview schedules/ questionnaires/ data sheets/field notes contain. a vast mass of data. They cannot straightaway provide answers to research questions. They‚ like raw materials‚ need processing. Data processing involves classification and summarisal1on of data in order to make them amenable to analysis Processing of data requires
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regression model to testing and validation dataset (output is in “LR_Output2”‚ “LR_Testscore2”‚ and “LR_ValidLiftChart2”). In testcore sheet‚ we can see the probability output we generated for each row from test data. Below shows the regression model and scoring summary. 3. a) the data of purchaser only is in “Purchasers_only” sheet b) Partition is shown in “Data_Partition2” sheet c) Multiple Linear regression output can be seen in “MLR_Output1”. Target variable is “spending”. We select every
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