Internet Consumer Behavior

2010 ◽  
pp. 637-646
Author(s):  
Marie-Odile Richard ◽  
Michel Laroche
Keyword(s):  
Consumer Behavior ◽  
Distribution Channel ◽  
Original Model ◽  
The Internet ◽  
New Model ◽  
Model Based ◽  
New Distribution

As the internet is a new medium and a new distribution channel, it is important to understand the behavior of site visitors. This requires the development of a new model of Internet consumer behavior. The model in Figure 1-1 is an original model based on Mehrabian and Russell’s (1974)SOR paradigm (i.e., stimulus, organism, response) which is explicated in this chapter and the next three ones. In this chapter we will explain the shaded areas of Figure 1

Television in Flux

2012 ◽  
pp. 378-391
Author(s):  
Steven S. Wildman ◽  
Han Ei Chew
Keyword(s):  
Service Providers ◽  
Distribution Channel ◽  
The Internet ◽  
Television Industry ◽  
Media Companies ◽  
Current Trends ◽  
Video Distribution ◽  
Television Service ◽  
Television Market ◽  
New Distribution

The television landscape is in a state of flux. In this new environment, profit-driven media companies have to balance tradeoffs between traditional and new channels of video distribution to optimize returns on their investments in content generation. This chapter describes the challenges traditional television service providers face in adapting their strategies to an environment in which the internet is playing an increasingly prominent role as a new distribution channel. In the short to intermediate run there is the challenge of finding ways to monetize an internet audience without cannibalizing profits earned through traditional distribution channels. The longer-term challenge is adapting to a distribution technology that embeds a fundamentally different economic logic for video market organization. In this chapter, we describe and analyze current trends in the internet television market and traditional television industry players’ efforts to respond to the opportunities and threats posed by internet distribution.

Robustness against outliers: A new variance inflated regression model for proportions

2019 ◽  
Vol 20 (3) ◽  
pp. 274-309
Author(s):  
Agnese Maria Di Brisco ◽  
Sonia Migliorati ◽  
Andrea Ongaro
Keyword(s):  
Regression Model ◽  
Bayesian Approach ◽  
Regression Models ◽  
The Other ◽  
Regression Coefficients ◽  
Posterior Distributions ◽  
New Model ◽  
Model Based ◽  
Regression Curves ◽  
New Distribution

This article addresses the issue of building regression models for bounded responses, which are robust in the presence of outliers. To this end, a new distribution on (0,1) and a regression model based on it are proposed and some properties are derived. The distribution is a mixture of two beta components. One of them, showing a higher variance (variance inflated) is expected to capture outliers. Within a Bayesian approach, an extensive robustness study is performed to compare the new model with three competing ones present in the literature. A broad range of inferential tools are considered, aimed at measuring the influence of various outlier patterns from diverse perspectives. It emerges that the new model displays a better performance in terms of stability of regression coefficients’ posterior distributions and of regression curves under all outlier patterns. Moreover, it exhibits an adequate behaviour under all considered settings, unlike the other models.

A Concept for the Evaluation of E-Commerce-Ability

2002 ◽  
pp. 199-213 ◽  
Author(s):  
Ulrike Baumoel ◽  
Thomas Stiffel ◽  
Robert Winter
Keyword(s):  
Systematic Approach ◽  
Distribution Channel ◽  
The Internet ◽  
Internal View ◽  
Long Run ◽  
Business Networking ◽  
New Distribution

Although many corporations currently try to establish e-commerce as a new field of business and as many corporations are already in the middle of implementing it or have just finished doing so, only a few e-commerce concepts prove to be successful in the long run. The question “Why?” is indeed difficult to answer, especially if a systematic approach for the analysis is not available. We deduced from our current research that e-commerce can only be successful if the corporation is structured according to the requirements of its e-commerce activities. That is, it is most likely to fail if e-commerce is only realized basing on the Internet as a new distribution channel, without changing the internal view on customer processes and without restructuring certain elements such as internal processes and structures and inter-business networking.

scholarly journals Modification and Validation of the Phosphate Removal Model: A Multicenter Study

2021 ◽  
pp. 1-10
Author(s):  
Weichen Zhang ◽  
Qiuna Du ◽  
Jing Xiao ◽  
Zhaori Bi ◽  
Chen Yu ◽  
...  
Keyword(s):  
Polynomial Regression ◽  
External Validation ◽  
Original Model ◽  
Phosphate Concentration ◽  
Phosphate Removal ◽  
Internal Validation ◽  
Modified Model ◽  
New Model ◽  
Significant Difference ◽  
Removal Model

<b><i>Background:</i></b> Our research group has previously reported a noninvasive model that estimates phosphate removal within a 4-h hemodialysis (HD) treatment. The aim of this study was to modify the original model and validate the accuracy of the new model of phosphate removal for HD and hemodiafiltration (HDF) treatment. <b><i>Methods:</i></b> A total of 109 HD patients from 3 HD centers were enrolled. The actual phosphate removal amount was calculated using the area under the dialysate phosphate concentration time curve. Model modification was executed using second-order multivariable polynomial regression analysis to obtain a new parameter for dialyzer phosphate clearance. Bias, precision, and accuracy were measured in the internal and external validation to determine the performance of the modified model. <b><i>Results:</i></b> Mean age of the enrolled patients was 63 ± 12 years, and 67 (61.5%) were male. Phosphate removal was 19.06 ± 8.12 mmol and 17.38 ± 6.75 mmol in 4-h HD and HDF treatments, respectively, with no significant difference. The modified phosphate removal model was expressed as Tpo<sub>4</sub> = 80.3 × <i>C</i><sub>45</sub> − 0.024 × age + 0.07 × weight + β × clearance − 8.14 (β = 6.231 × 10<sup>−3</sup> × clearance − 1.886 × 10<sup>−5</sup> × clearance<sup>2</sup> – 0.467), where <i>C</i><sub>45</sub> was the phosphate concentration in the spent dialysate measured at the 45th minute of HD and clearance was the phosphate clearance of the dialyzer. Internal validation indicated that the new model was superior to the original model with a significantly smaller bias and higher accuracy. External validation showed that <i>R</i><sup>2</sup>, bias, and accuracy were not significantly different than those of internal validation. <b><i>Conclusions:</i></b> A new model was generated to quantify phosphate removal by 4-h HD and HDF with a dialyzer surface area of 1.3–1.8 m<sup>2</sup>. This modified model would contribute to the evaluation of phosphate balance and individualized therapy of hyperphosphatemia.

Realization of an Intelligent E-Commerce Model Based on Mobile Agent

2014 ◽  
Vol 543-547 ◽  
pp. 4198-4201
Author(s):  
Xiao Guang Li ◽  
Zhan Jun Gao
Keyword(s):  
Mobile Agent ◽  
Mobile Agents ◽  
Simulation Experiment ◽  
The Internet ◽  
Variable Time ◽  
Model Based

Mobile agent is one of the most prominent technologies believed to be playing an important role in future e-commerce. After presented an intelligent e-commerce model based on OBI ( open buying on the internet) , we developed a modified approach for the security of mobile agents and e-commerce, and designed an intelligent shopping algorithm based on variable time negotiation function. The presented model has been evaluated by simulation experiment. It has been found that the presented model is efficient.

Bovine Serum Albumin Adsorption onto Colloidal Al2O3Particles:  A New Model Based on Zeta Potential and UV−Vis Measurements

Langmuir ◽  
2004 ◽  
Vol 20 (23) ◽  
pp. 10055-10061 ◽  
Author(s):  
Kurosch Rezwan ◽  
Lorenz P. Meier ◽  
Mandana Rezwan ◽  
Janos Vörös ◽  
Marcus Textor ◽  
...  
Keyword(s):  
Bovine Serum Albumin ◽  
Zeta Potential ◽  
Serum Albumin ◽  
Bovine Serum ◽  
New Model ◽  
Model Based ◽  
Bovine Serum Albumin Adsorption ◽  
Albumin Adsorption
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