its simplest terms‚ the translation of data into a secret code. In order to read an encrypted file‚ the receiver of the file must obtain a secret key that will enable him to decrypt the file. A deeper look into cryptography‚ cryptanalysis‚ and the Data Encryption Standard (DES) will provide a better understanding of data encryption. Cryptographic Methods There are two standard methods of cryptography‚ asymmetric encryption and symmetric encryption. Data that is in its original form (unscrambled)
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important ways. While it may seem like choosing toys for toddlers should be easy‚ as you walk into a toy store today‚ the only thing that’s easy is feeling overwhelmed. There is a huge array of toys that have been developed for the toddler market. How do you choose which are right for your child? How can you tell which are high quality and which will last? Which will engage your child’s interest for more than a few days or weeks? Below are some ideas for choosing toys that will grow with your child
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Definition: Hashing index is used to retrieve data. We can find‚ insert and delete data by using the hashing index and the idea is to map keys of a given file. A hash means a 1 to 1 relationship between data. This is a common data type in languages. A hash algorithm is a way to take an input and always have the same output‚ otherwise known as a 1 to 1 function. An ideal hash function is when this same process always yields a unique output. Hash Function Choosing a hash function that minimizes the number
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Table of Contents 1. VARIABLES- QUALITATIVE AND QUANTITATIVE......................3 1.1 Qualitative Data (Categorical Variables or Attributes) ........................... 3 1.2 Quantitative Data............................................................................................... 4 DESCRIPTIVE STATISTICS.................................................6 2.1 Sample Data versus Population Data ................................................................... 6 2.2 Parameters and Statistics
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Q) What are Secondary Data? Secondary Data Secondary data is information gathered for purposes other than the completion of a research project. Data previously collected by someone else‚ possibly for some other purpose that can be used later for making decisions if found suitable for the purpose‚ other than the original one. Secondary data can be acquired from the internal records of the organization‚ their departments‚ subsidiaries or sister organizations and also from external sources‚ such
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PRINCIPLES OF DATA QUALITY Arthur D. Chapman1 Although most data gathering disciples treat error as an embarrassing issue to be expunged‚ the error inherent in [spatial] data deserves closer attention and public understanding …because error provides a critical component in judging fitness for use. (Chrisman 1991). Australian Biodiversity Information Services PO Box 7491‚ Toowoomba South‚ Qld‚ Australia email: papers.digit@gbif.org 1 © 2005‚ Global Biodiversity Information Facility Material
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Should the SAT Score be a Factor. In my opinion I don’t think so because it is a test and they are people that are not good at tests but they’re work ethic and understanding of the work is outstanding.There are people who are good at test but don’t do their work. So I think it is unfair for the people working hard. It is basically telling them they that they’re hard work is for nothing. I think they should completely take out the SAT test. I think it is unnecessary for nation wide testing because
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Question 1: Case One –eBay Q1.1. Discuss the relationships between business intelligence‚ data warehouse‚ data mining‚ text and web mining‚ and knowledge management. Justify and synthesis your answers/viewpoints with examples (e.g. eBay case) and findings from literature/articles. To understand the relationships between these terms‚ definition of each term should be illustrated. Firstly‚ business intelligence (BI) in most resource has been defined as a broad term that combines many tools and technologies
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Collecting‚ Reviewing‚ and Analyzing Secondary Data WHAT IS SECONDARY DATA REVIEW AND ANALYSIS? Secondary data analysis can be literally defined as second-hand analysis. It is the analysis of data or information that was either gathered by someone else (e.g.‚ researchers‚ institutions‚ other NGOs‚ etc.) or for some other purpose than the one currently being considered‚ or often a combination of the two (Cnossen 1997). If secondary research and data analysis is undertaken with care and diligence
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as a political man. Reagan’s speech was all in support of the currently running republican candidate‚ Barry Goldwater. Goldwater was the Senator of Arizona and was representing the Republican Party in 1964’s election. Reagan’s speech “A Time for Choosing” uses a wide range of rhetoric style‚ delivery‚ logos‚ pathos and ethos. Using these rhetorical techniques throughout his speech proved to be successful and effective in the hearts of the American people. In the beginning of his speech‚ Reagan uses
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