Information retrieval (IR) is the science and practice of matching information seekers with the information being sought. Research on IR focuses on improving the effectiveness and efficiency of retrieval techniques and evaluating competing retrieval mechanisms. For example, Internet search...

As this volume demonstrates, a wide variety of methodologies exist to evaluate particularly the objectives and outcomes of research and development programs. These include surveys, statistical and econometric estimations, patent analyses, bibliometrics, scientometrics, network analyses, case...

The only comprehensive source of the actual costs of environmental abatement activities in the United States has been the Pollution Abatement Costs and Expenditures (PACE) survey. This survey collects facility-level data on capital and operating costs of pollution abatement, focusing on...

Escalating energy demand may be the most important issue facing the United States and the world today. There is little disagreement that research and development (R&D) is needed to develop new energy technologies for the future; however, there is less agreement over the specific research agenda...