This paper points out a conceptual flaw present in a recent publication. It shows how the methodology can be modified to correct this flaw. It also presents improved bounds to determine the nature of a given problem.

The problem of determining optimal reorganization policies for databases which employ file structures with overflow chaining is studied. The dynamics of the file performance driven by update transactions and reorganizations is formulated as a stochastic control model which incorporates...

In recent years, there has been a proliferation of database systems in all types of organizations. In many cases, these databases are developed in different departments and maintained autonomously. Much is to be gained, however, if databases across departments, divisions, or even organizations...

Because of the heterogeneous nature of different data sources, data integration is often one of the most challenging tasks in managing modern information systems. While the existing literature has focused on problems such as schema integration and entity identification, it has largely overlooked...

We analyze the allocation of objects in a network of caches that collaborate to service requests from customers. A thorough analysis of this problem in centralized and decentralized setups, both of which occur in practice, is essential for understanding the benefits of collaboration. A key...

Despite the widespread adoption of search and recommendation technologies on the Internet, empirical research that examines the effect of these technologies is scarce. How do online consumers use these technologies? Does consumers' technology usage have an effect on the sales to them or their...

This study examines coordination issues that occur in allocating spending between advertising and information technology (IT) in electronic retailing. Electronic retailers run the risk of overspending on advertising to attract customers but underspending on IT, thus resulting in inadequate...