ACM Transactions on Information Systems (TOIS), Volume 12

Volume 12, Number 1, January 1994

• Robert B. Allen: Editorial. 1
• TOIS Charter. 3
• Gary Marchionini, Gregory Crane: Evaluating Hypermedia and Learning: Methods and Results from the Perseus Project. 5-34
• Alexandra Poulovassilis, Mark Levene: A Nested-Graph Model for the Representation and Manipulation of Complex Objects. 35-68
• Peter Schäuble, Beat Wüthrich: On the Expressive Power of Query Languages. 69-91
• Norbert Fuhr, Ulrich Pfeifer: Probabilistic Information Retrieval as a Combination of Abstraction, Inductive Learning, and Probabilistic Assumptions. 92-115

Volume 12, Number 2, April 1994

• Rob King: Introduction to the Special Issue on Social Science Perspectives on IS. 117-118
• M. Lynne Markus: Finding a Happy Medium: Explaining the Negative Effects of Electronic Communication on Social Life at Work. 119-149
• Geoff Walsham, Timothy Mwololo Waema: Information Systems Strategy and Implementation: A Case Study of a Building Society. 150-173
• Wanda J. Orlikowski, Debra C. Gash: Technological Frames: Making Sense of Information Technology in Organizations. 174-207
• Karen Ruhleder: Rich and Lean Representations of Information for Knowledge Work: The Role of Computing Packages in the Work of Classical Scholars. 208-230

Volume 12, Number 3, July 1994

• David D. Lewis, Philip J. Hayes: Guest Editorial - Special Issue on Text Categorization. 231
• Chidanand Apté, Fred Damerau, Sholom M. Weiss: Automated Learning of Decision Rules for Text Categorization. 233-251
• Yiming Yang, Christopher G. Chute: An Example-Based Mapping Method for Text Categorization and Retrieval. 252-277
• Elizabeth D. Liddy, Woojin Paik, Edmund S. Yu: Text Categorization for Multiple Users Based on Semantic Features from a Machine-Readable Dictionary. 278-295
• Ellen Riloff, Wendy G. Lehnert: Information as Basic for High-Precision Text Classification. 296-333

Volume 12, Number 4, October 1994

• Ulla Merz, Roger King: Direct: A Query Facility for Multiple Databases. 339-359
• Man Kit Chang, Carson C. Woo: A Speech-Act Negotiation Protocol: Design, Implementation, and Test Use. 360-382
• Richard Chimera, Ben Shneiderman: An Exploratory Evaluation of Three Interfaces for Browsing Large Hierarchical Tables of Contents. 383-406
• Stephen T. C. Wong: Preference-Based Decision Making for Cooperative Knowledge-Based Systems. 407-