The rapid growth of online search and its centrality to the ecology of the Internet pose important questions: why is the search engine market so concentrated, and will it evolve towards monopoly? What implications does this concentration have for consumers, search engines, and advertisers? Does...

Purpose – The purpose of this paper is to test the utility of regulatory focus theory principles in a real-world setting; specifically, Internet hosted text advertisements. Effect of compatibility of the ad text with the regulatory focus of the consumer was examined....

Purpose – This paper aims to examine whether information search frequency of accounting information is related to the explanatory power of accounting information for firm market value. It also examines whether information content and state of nature can have an impact on this relationship....

Purpose – This study aims to propose an artificial neural network to identify automatically topic changes in a user session by using the statistical characteristics of queries, such as time intervals and query reformulation patterns. Design/methodology/approach – A sample data log from the...

Economic aspects of a national electronic reserve service (NERS) were explored using Ithink Analyst, a modelling software package. A model was developed and simulations were used to monitor the effect of variations in the values of key model elements. The model was based on developments within...

As the World Wide Web continues its tremendous rate of development, providers of services on the web have difficult decisions to make regarding the deployment of new technologies: should they begin deployment of technologies such as HTML 4.0, CSS 2, Java, Dublin Core metadata, etc., or should...

At the heart of the Okapi system is a formula referring to some half a dozen variables, which estimate the probability that a given document is relevant to a given query. User interface design for Okapi aims to present its search capabilities as clearly and simply as possible. But between the...

Applying total quality management (TQM) to the software development process can control software quality and productivity. Selecting suitable tools for the TQM process can strengthen the capability of software quality assurance. This article provides a manager’s guide to implementing a total...

It is important to take into account the trade‐off between hardware and software systems when total computer‐system reliability/performance is evaluated and assessed. Develops an availability model for a hardware‐software system. The system treated here consists of one hardware and one...

The contents and function of a computer package to fit reliability models for computer software are outlined. Parameters in the models are, in the first place, estimated by maximum likelihood estimation procedures. Bayesian estimation methods are also used and are shown to give estimates with a...