Robert H. Ledwith

Extraction of chemical reaction information from primary journal text

C.-S. Ai, Paul E. Blower, Robert H. Ledwith, 1990, J. Chem. Inf. Comput. Sci..

Extracting Reaction Information from Chemical Databases

C.-S. Ai, Paul E. Blower, Robert H. Ledwith, 1991, Knowledge Discovery in Databases.

Development of a large, concept-oriented database for information retrieval

Robert H. Ledwith, 1988, SIGIR '88.

On the Difficulties of Applying the Results of Information Retrieval Research to Aid in the Searching of Larg Scientific Databases

Robert H. Ledwith, 1992, Inf. Process. Manag..