| September 2015 | Vol. 38 No. 3 |
IEEE Computer Society
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Letters |
| Letter from the Editor-in-Chief | David Lomet | 1 |
| Letter from the Special Issue Editor | Chris Jermaine | 2 |
Special Issue on Approximate Query Processing and Applications |
| A Handbook for Building an Approximate Query Engine | Barzan Mozafari, Ning Niu | 3 |
| Scalable Analytics Model Calibration with Online Aggregation | Florin Rusu, Chengjie Qin, Martin Torres | 30 |
| On the Complexity of Evaluating Order Queries with the Crowd | Benoit Groz, Tova Milo, Sudeepa Roy | 44 |
| SampleClean: Fast and Reliable Analytics on Dirty Data |   |
| Sanjay Krishnan, Jiannan Wang, Michael J. Franklin, Ken Goldberg, Tim Kraska, Tova Milo, Eugene Wu | 59 |
| Independent Range Sampling on a RAM | Xiaocheng Hu, Miao Qiao, Yufei Tao | 76 |
| Hidden Database Research and Analytics (HYDRA) System |   |
| Yachao Lu, Saravanan Thirumuruganathan, Nan Zhang, Gautam Das | 84 |
| Approximate Geometric Query Tracking over Distributed Streams | Minos Garofalakis | 103 |
Announcements and Notices |
| TCDE Membership Form | backcover |