chapter 3  the cassandra data model

... (EER) Model EER Model  The basic concepts of ER modeling are not powerful enough for some complex applications  The Enhanced ER model is the extension of the original ER model with new modeling ... EER Model  Include all modeling concepts of basic ER  Additional concepts: ◦ Subclasses/superclasses ◦ Specialization/generalization, ◦ Categories, attribute inheritance  Iƒt is used to model ... that are meaningful and need to be represented explicitly because of their significance to the database application  Ex: EMPLOYEE may be further grouped into: ◦ SECRETARY, ENGINEER, TECHNICIAN,...

Ngày tải lên: 15/05/2017, 10:33

... Index Model and Bivariate Regression Eric Zivot Department of Economics University of Washington March 1, 2001 1 The single index model Sharpes single index model, also know as the market model ... same model as the Capital Asset Pricing Model (CAPM), which is an economic model of equilibrium returns, but is closely related to it as we shall see in the next chapter. The single index model ... model and the single factor model, is a purely statistical model used to explain the behavior of asset returns. It is a generalization of the constant expected return (CER) model to account for systematic...

Ngày tải lên: 17/12/2013, 15:17

... 2014 Introduction to Enhanced-ER Model  Enhanced ER or Extended ER (EER) model  Created to design more accurate database schemas   Jan - 2014 Reflect the data properties and constraints more ... requirements than traditional applications Introduction to Enhanced-ER Model   EER model includes all modeling concepts of the ER model In addition, EER includes:      Subclasses and superclasses ... Chapter 3: Enhanced EntityRelationship (EER) Model Jan - 2014 Contents Introduction to Enhanced-ER Model Subclasses, Superclasses, and Inheritance Specialization and Generalization...

Ngày tải lên: 16/08/2016, 20:02

... plot the normalized data on a ternary diagram to determine the specific field in which the data fall If the proportion of matrix is less than 15% plot the data and use Dott’s diagram ... this case that total is The next step is to plot the normalized data on a ternary diagram to determine the specific field in which the data fall Classification of Rudites Rudites are classified ... matrix is less than 15% plot the data and use Dott’s diagram for the classification of arenites If the proportion of matrix is... than 15% plot the data and use Dott’s diagram for...

Ngày tải lên: 30/11/2016, 16:52

... Addison-Wesley All rights reserved 5-2 Introduction • The standard trade model combines ideas from the Ricardian model and the Heckscher-Ohlin model Differences in labor, labor skills, physical capital, land ... Chapter The Standard Trade Model Slides prepared by Thomas Bishop Preview • Measuring the values of production and consumption ... value of output V lies on the PPF • V = PCQC + PF QF describes the value of output in a two good model, and when this value is constant the equation’s line is called and isovalue line  The slope...

Ngày tải lên: 15/07/2018, 20:19

... specialists   They have the required technical skills to  evaluate all members of their organization   Functional managers: – – – Decide who performs each task Decide how the task is performed ... It would be very unusual for a project manager  to have all the technical skills that are used on  their projects  Project managers: – – – Rarely decide who performs each task Lack the technical skills to evaluate much of the  work performed on a particular project ... “a process of social influence, which  maximizes the efforts of others, towards the  achievement of a goal”  Strong sense of ethics  A management style that fits the project 3­31 Leadership Research...

Ngày tải lên: 16/01/2020, 08:56

... some powerful applications using the following architecture: 1.Client/server computing model 2.Pear to Pear P2P Model 3.Cloud Computing Hourglass, layered architecture ◦ Network Technology Substrate ... T1-Lecture-3 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 135 Cloud Computing Model T1-Lecture-3 Ahmed Mumtaz Mustehsan Copyright © 2010 Pearson Education, Inc 136 Other Internet ... developed by the World Wide Web Consortium (W3C) HTTP runs in the Application Layer of the TCP/IP model An HTTP session begins by the client’s browser requesting a resource, such as a Web page,...

Ngày tải lên: 18/01/2020, 17:03

... Specifies that the employees have the right to organize  unions without employer interference and to bargain  through the representatives of their own choosing ­ The purpose of the law was to establish procedures to  ... Court ruled that bargaining was in the “highest  public interest” and would prevent the interruption  of commerce ­ First time Supreme Court recognized the authority  of the U.S. to protect union activities ... essential component of political democracy • The Need for the Right to Strike ­ Since the freedom to enter a contract also requires the  freedom to reject a contract offer , the? ?right to negotiate  and strike are closely related...

Ngày tải lên: 18/01/2020, 20:59

... ▫ What is the scope of the problems and the possible reasons? Evaluation of decision alternatives ▫ What are the alternatives being studied? ▫ What are the criteria for choosing among the alternatives? ... What are the criteria for choosing among the alternatives? ▫ What is the timing or importance of the decision? Users of Research results ▫ Who are the decision makers? ▫ Are there any covert purposes? Marketing Research ... A most useful way to clarify the decision motivating the  research is to ask: What alternative actions are being considered? What actions would be taken, given the various feasible outcomes of the  research?...

Ngày tải lên: 19/01/2020, 02:57

... TheAggregateExpenditures Model McGrawưHill/Irwin Copyrightâ2012byTheMcGrawưHillCompanies,Inc.Allrightsreserved AssumptionsandSimplifications Use the Keynesian aggregate • • • LO1 expenditures model Prices ... caution on tariffs and devaluations • Other countries may retaliate • Lower GDP for all 11-8 Adding the Public Sector • Government purchases and • LO4 equilibrium GDP • Government spending is subject...

Ngày tải lên: 03/02/2020, 23:11

... TheAggregateExpenditures Model McGrawưHill/Irwin Copyrightâ2012byTheMcGrawưHillCompanies,Inc.Allrightsreserved AssumptionsandSimplifications Use the Keynesian aggregate • • • LO1 expenditures model Prices ... caution on tariffs and devaluations • Other countries may retaliate • Lower GDP for all 28-8 Adding the Public Sector • Government purchases and • LO4 equilibrium GDP • Government spending is subject...

Ngày tải lên: 03/02/2020, 23:29

... • • • • • • • • • • Clarkson principles descriptive value (of stakeholder model) instrumental value (of stakeholder model) key questions (in stakeholder management) legitimacy managerial view ... Concept Who Are Business’s Stakeholders? Stakeholder Approaches Three Values of the Stakeholder Model Key Questions in Stakeholder Management Effective Stakeholder Management Developing a Stakeholder ... facilitated by • • • • Stakeholder culture Stakeholder management capability Stakeholder corporation model Principles of stakeholder management © 2015 Cengage Learning 28 Developing a Stakeholder Culture...

Ngày tải lên: 04/02/2020, 17:11

... Selling Assets  If the asset is salvaged for more than the book value , the? ? revenue minus the book value is the ‘profit’ from the sale 35 Selling Assets  If the asset is salvaged for less than the book value , the? ? ...  Logically this method will match the depreciation expense  with the actual use of the asset. Disadvantage is the  requirement of monitoring the actual use of the asset  IRS allows unit‐of‐production (their term) depreciation if the  ... If the asset is salvaged for less than the book value , the? ? revenue minus the book value is the ‘loss’ from the sale  If an asset is retained by the company beyond its estimated  life, it is carried on the books at its fully depreciated book ...

Ngày tải lên: 04/02/2020, 19:22

... specialists   They have the required technical skills to  evaluate all members of their organization   Functional managers: – – – Decide who performs each task Decide how the task is performed ... It would be very unusual for a project manager  to have all the technical skills that are used on  their projects  Project managers: – – – Rarely decide who performs each task Lack the technical skills to evaluate much of the  work performed on a particular project ... “a process of social influence, which  maximizes the efforts of others, towards the  achievement of a goal”  Strong sense of ethics  A management style that fits the project 3­31 Leadership Research...

Ngày tải lên: 08/02/2020, 21:02

... significantly reduced the ability of the model to fit the data, and thus the data not support the null hypothesis • If the null hypothesis is true, we expect that the data are compatible with the conditions ... regression model to the sum of squared errors from a regression model in which the null hypothesis is assumed to be true • To illustrate what is meant by an unrestricted multiple regression model ... large, implying that the constraints placed on the model by the null hypothesis have a large effect on the ability of the model to fit the data If the difference SSER − SSEU is Slide 8.6 Undergraduate...

Ngày tải lên: 02/03/2020, 14:06

... walks you through installing Cassandra on a variety of platforms xviii | Preface www.it-ebooks.info Chapter 3, The Cassandra Data Model Here we look at Cassandra s data model to understand what columns, ... invention of IMS, the new model, the disruptive model, the threatening model, was the relational database In his 1970 paper “A Relational Model of Data for Large Shared Data Banks,” Dr Edgar F ... of modeling data up front using expensive data modeling tools and then writing queries with complex join statements, Cassandra asks you to model the queries you want, and then provide the data...

Ngày tải lên: 21/02/2014, 19:20

... Chemistry: A Molecular Approach A Theory that Explains Electron Behavior • the quantum-mechanical model explains the manner • electrons exist and behave in atoms helps us understand and predict ... Emission vs Absorption Spectra Spectra of Mercury Tro, Chemistry: A Molecular Approach 42 Bohr’s Model • Neils Bohr proposed that the electrons could only have very specific amounts of energy  ... determined the energy of the photon of light produced Tro, Chemistry: A Molecular Approach 43 Bohr Model of H Atoms Tro, Chemistry: A Molecular Approach 44 Wave Behavior of Electrons • de Broglie...

Ngày tải lên: 28/11/2013, 01:11

... Kumar Introduction to Data Mining 35 OLAP Operations: Data Cube The key operation of a OLAP is the formation of a data cube A data cube is a multidimensional representation of data, together with ... Introduction to Data Mining Visualization Visualization is the conversion of data into a visual or tabular format so that the characteristics of the data and the relationships among data items or ... Introduction to Data Mining separate face becomes a Star Plots for Iris Data Setosa Versicolour Virginica © Tan,Steinbach, Kumar Introduction to Data Mining 29 Chernoff Faces for Iris Data Setosa...

Ngày tải lên: 15/03/2014, 09:20

... Borland predefined data types in Chapter 4, which is devoted to Delphi RTL Considering the relevant changes on the variant data type it should come to no surprise that the TVarData type has disappeared ... TTest = class protected ProtectedData: Integer; public PublicData: Integer; function GetValue: string; end; The main form uses the protected hack to access to the data, as follows: type TFake = ... Marco Cantù (www.marcocantu.com/d8ebook) – Page 15 Base Data Types Contrary to what happened in the past, when the Delphi language base data types had to partially adapt to the underlying CPU...

Ngày tải lên: 16/04/2014, 11:14