IEEE Computer Society
| December 1999 | Vol. 22 No. 4 |
IEEE Computer Society
|
Letters |
| Letter from the Editor-in-Chief | David Lomet | 1 |
| TC on Data Engineering: Election of Chair for 2000-01 | Paul Larson | 2 |
| TC on Data Engineering Election Ballot | 3 |
| Letter from the Special Issue Editor | Amr El Abbadi | 4 |
Special Issue on Retrieval and Maintenance of Summary Data |
| Approximate Query Answering Using Histograms | Viswanath Poosala, Venkatesh Ganti, Yannis E. Ioannidis | 5 |
| The Role of Approximations in Maintaining and Using Aggregate Views | Daniel Barbará and Xintao Wu | 15 |
| Some Approaches to Index Design for Cube Forests | Theodore Johnson and Dennis Shasha | 22 |
| Data Cubes in Dynamic Environments | Steve Geffner, Mirek Riedewald, Divyakant Agrawal and Amr El Abbadi | 31 |
| On Sampling and Relational Operators | Surajit Chaudhuri and Rajeev Motwani | 35 |
Announcements and Notices |
| 2000 Data Engineering Conference | backcover |