In this lecture we will be looking into the secretary problem, and an interesting variation of the problem called the incentive comparable secretary problem. For both of these problems we will show how they can be solved though a correspondence between all possible strategies and the feasible solution space to a linear program. In both cases this will allow us to derive an algorithm and prove t...

in today’s very competitive world gaining competitive advantage is bound to arranging products and services of companies and businesses in accordance with customers’ needs. for this purpose, gaining reputation in e-service can be quite helpful. thus the goal of the present research is studying the effect of e-banking service quality on bank reputation. so a coherent collection of structures wer...

a r t i c l e i n f o The rapid development of information technology enables an increasing number of consumers to search and book products/services online first and then to consume them in brick-and-mortar stores. This new e-commerce model is called online to offline (O2O) e-commerce and has received significant managerial and academic attention. Compared with many extant e-commerce models (i....

Gavagai used its commercially available system for the filtering and polarity tasks in the evaluation campaign for online reputation management systems at CLEF 2013. The system is built for large scale analysis of streaming text and as part of the services Gavagai provides, it measures the public attitude visavi targets of interest. This mechanism — with no adjustment for this specific task — w...

This paper introduces a set of principles for governing the design and operation of online reputation systems. We also introduce the design, architecture, and implementation of a flexible, general-purpose framework, called Pythia, for building reputation systems. We give a sample application of our framework to illustrate its use.

Reputation-management, as proposed for dynamic and open systems aims to provide mechanism for analysing the behaviour of agents, and to distribute this information so that the impact of the actions of those acting against the interests of a community can be limited. We study the assumptions that underpin this decisionmaking role for reputation-management and highlight its limitations with regar...

Instructional content designers of online learning platforms are concerned about optimal video design guidelines that ensure course effectiveness, while keeping video production time and costs at reasonable levels. In order to address the concern, we use clickstream data from one Coursera course to analyze the engagement, motivational and navigational patterns of learners upon being presented w...

and a two-month-old baby; other evidence comes from observations on adults. Perhaps his most important finding, from a modem point of view, is his demonstration (despite multiple difficulties) that in the hollows of teeth are blood vessels and nerves, helping to explain sensation in these hardened parts of the body. He preferred to confirm the observations of the ancients, such as Hippocrates' ...

That form of inflammation which attacks the apposed pleural surfaces lining the base of the lung and the diaphragm has been recognised from of old by physicians. M. Gueneau de Mussy* wrote a memoir on the subject about the year 1853, and he mentions that "the ancients considered delirium to be an urgent symptom of inflammation of the diaphragm, whence arose one of the terms applied to the struc...

Although bioleaching was used unknowingly by the ancients to extract metals (principally copper) from ores, the development of modern commercial bioleaching processes is relatively new. It began in the late 1940s, with the discovery of the role of bacteria in the formation of acid mine drainage. From there, research and development activities in the field flourished, and the earliest commercial...