What is Data Communications? Next Topic | TOC The distance over which data moves within a computer may vary from a few thousandths of an inch‚ as is the case within a single IC chip‚ to as much as several feet along the backplane of the main circuit board. Over such small distances‚ digital data may be transmitted as direct‚ two-level electrical signals over simple copper conductors. Except for the fastest computers‚ circuit designers are not very concerned about the shape of the conductor or
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Abstract: The existing business paradigm of data analytics is set for a transformation. Today‚ companies are experimenting to replicate the “Outsourced data analytics” model to “Crowdsourced data analytics”. Companies like Kaggle‚ Crowdanalytix and others are hitting the headlines of top analytics blogs across the globe. The reason is that the new business model promises a drastic decrease in the cost of analytics for companies long with the flexibility to get the problem solved anytime with much
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Outline Introduction Distributed DBMS Architecture Distributed Database Design Distributed Query Processing Distributed Transaction Management Data Replication Consistency criteria Update propagation protocols Parallel Database Systems Data Integration Systems Web Search/Querying Peer-to-Peer Data Management Data Stream Management Distributed & Parallel DBMS M. Tamer Özsu Page 6.1 Acknowledgements Many of these slides are from notes prepared by Prof. Gustavo
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their capability to harness the power of analytics – From basic reporting on shrink to understanding the key drivers with high correlation to shrink and managing by exception with the help of predictive models. There is a need to utilize available data assets effectively by building capabilities to report‚ analyze and predict shrink accurately. This article reviews the trends in retail shrink‚ its sources and how analytical techniques can help attack shrink in a cost effective manner. Retail Shrink
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Knowledge management | | | ByAmr Badrawy | | | Definition of knowledge knowledge is the ability of an actor to respond to a body of facts and principles accumulated over a period of time Definition of Knowledge management a multi-disciplined approach to achieving organizational objectives by making the best use of knowledge. KM focuses on processes such as acquiring‚ creating and sharing knowledge and the cultural and technical foundations that support them. A more simple definition
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expand throughout the course of history‚ requiring hospitality managers to find better methods and technologies to manage the information generated by the company’s business operations. Because of the ease with which modern information systems convert data into information‚ managers can leverage information‚ which was once impossible to compile‚ into usable information in order to maximize returns on the company’s investments. Statability‚ LLC offers a product called Statability‚ which uses a web-based
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CHAPTER 12 ROUTING IN SWITCHED NETWORKS A NSWERS TO Q UESTIONS 12.1 The average load expected over the course of the busiest hour of use during the course of a day. 12.2 The tradeoff is between efficiency and resilience. 12.3 A static routing strategy does not adapt to changing conditions on the network but uses a fixed strategy developed ahead of time. With alternate routing‚ there are a number of alternate routes between source and destination and a dynamic choice of routes is
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Text mining is the discovery of patterns and relationships from large sets of unstructured data—the kind of data we generate in e-mails‚ phone conversations‚ blog postings‚ online customer surveys‚ and tweets. The mobile digital platform has amplified the explosion in digital information‚ with hundreds of millions of people calling‚ texting‚ searching‚ “apping” (using applications)‚ buying goods‚ and writing billions of e-mails on the go. Consumers today are more than just consumers: they
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Activity 1 Reasons why organisations need to collect HR Data. It is important for organisations to collect and retain HR data as this will be key for strategic and HR planning. It will also help to have all the information necessary to make informed decisions‚ for the formulation and implementation of employment policies and procedures‚ to monitor fair and consistent treatment of staff‚ to contribute to National Statistics and to comply with statutory requirements. The key organisational
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1. Data mart definition A data mart is the access layer of the data warehouse environment that is used to get data out to the users. The data mart is a subset of the data warehouse that is usually oriented to a specific business line or team. Data marts are small slices of the data warehouse. Whereas data warehouses have an enterprise-wide depth‚ the information in data marts pertains to a single department. In some deployments‚ each department or business unit is considered the owner of its data
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