Hierarchical data model
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his study aims to investigate users’ attitude and intention to use of a social media site in the context of the Facebook platform. A questionnaire survey was conducted to collect data from 134 users of Facebook in Vietnam. Collected data were analyzed by using hierarchical regression analysis. This study points out that trustworthiness and perceived usefulness are the direct predictors of intention to use social media sites such as Facebook.
12p larachdumlanat129 14-01-2021 19 3 Download
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A Bayesian approach with frequentist validity has been developed to support inferences derived from a BLevel A^ in vivo-in vitro correlation (IVIVC). Irrespective of whether the in vivo data reflect in vivo dissolution or absorption, the IVIVC is typically assessed using a linear regression model. Confidence intervals are generally used to describe the uncertainty around the model. While the confidence intervals can describe population-level variability, it does not address the individual-level variability.
16p caothientrangnguyen 09-05-2020 33 2 Download
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This chapter describe how a hierarchical network supports the voice, and data needs of a small- or medium-sized business. Describe the functions of each of the three levels of the hierarchical network design model, the principles of hierarchical network design, and the concept of a converged network. Provide examples of how voice and video over IP affect network design,...
70p youcanletgo_01 04-01-2016 71 6 Download
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Lecture LAN Switching and Wireless - Chapter 1 describe how a hierarchical network supports the voice, video and data needs of a small and medium-sized business; describe how a hierarchical network supports the voice, video and data needs of a small and medium-sized business.
11p youcanletgo_01 29-12-2015 60 2 Download
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In this chapter presenting the terminology and basic concepts that will be used throughout the lecture. This chapter discusses data models and defines the concepts of schemas and instances, which are fundamental to the study of database systems, discuss the three-schema DBMS architecture, provides a user’s perspective on what a DBMS is supposed to do, describe the types of interfaces and languages that are typically provided by a DBMS,...
33p kiepnaybinhyen_04 15-12-2015 74 3 Download
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Data Model: A set of concepts to describe the structure of a database, and certain constraints that the database should obey. Data Model Operations: Operations for specifying database retrievals and updates by referring to the concepts of the data model. Operations on the data model may include basic operations and user-defined operations.
34p thienthanoze 12-11-2012 102 10 Download
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The minimum number of Cs that can be associated with one A is 1. I know this because the existence of the C to A relationship is mandatory. The maximum number of Cs that can be associated with one A is unlimited (or many). I know this because the cardinality of the C to A relationship is 1-M.
10p thienthanoze 12-11-2012 60 2 Download
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Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Choosing simplified mixed models for simulations when data have a complex hierarchical organization. An example with some basic properties in Sessile oak wood (Quercus petraea Liebl.)...
9p toshiba6 05-10-2011 43 5 Download
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Describe how a hierarchical network supports the voice, and data needs of a small- or medium-sized business. Describe the functions of each of the three levels of the hierarchical network design model, the principles of hierarchical network design (aggregate connectivity, network diameter, and redundancy), and the concept of a converged network. Provide examples of how voice and video over IP affect network design.
36p kienk6e 05-04-2011 158 39 Download
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Objectives: Describe how a hierarchical network supports the voice, and data needs of a small- or medium-sized business. Describe the functions of each of the three levels of the hierarchical network design model, the principles of hierarchical network design (aggregate connectivity, network diameter, and redundancy), and the concept of a converged network. Provide examples of how voice and video over IP affect network design. Select appropriate devices to operate at each level of the hierarchy, including voice and video components.
36p thanhtung_hk 05-11-2010 159 44 Download