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Note: Links lead to the DBLP on the Web. Walid G. Aref Mohamed Y. Eltabakh , Ramy Eltarras , Walid G. Aref: Space-Partitioning Trees in PostgreSQL: Realization and Performance. ICDE 2006 : 100 Xiaopeng Xiong , Walid G. Aref: R-trees with Update Memos. ICDE 2006 : 22 Xiaopeng Xiong , Mohamed F. Mokbel , Walid G. Aref: LUGrid: Update-tolerant Grid-based Indexing for Moving Objects. MDM 2006 : 13 Ihab F. Ilyas , Walid G. Aref: Rank-Aware Query Processing and Optimization. ICDE 2005 : 1144 Xiaopeng Xiong , Mohamed F. Mokbel , Walid G. Aref: SEA-CNN: Scalable Processing of Continuous K-Nearest Neighbor Queries in Spatio-temporal Databases. ICDE 2005 : 643-654 Mohamed G. Elfeky , Walid G. Aref, Ahmed K. Elmagarmid : WARP: Time Warping for Periodicity Detection. ICDM 2005 : 138-145 Mohamed H. Ali , Walid G. Aref, Cristina Nita-Rotaru : SPASS: scalable and energy-efficient data acquisition in sensor databases. MobiDE 2005 : 81-88 Mohamed F. Mokbel , Walid G. Aref: GPAC: generic and progressive processing of mobile queries over mobile data. Mobile Data Management 2005 : 155-163 Moustafa A. Hammad , Walid G. Aref, Ahmed K. Elmagarmid : Optimizing In-Order Execution of Continuous Queries over Streamed Sensor Data. SSDBM 2005 : 143-146 Mohamed H. Ali , Mohamed F. Mokbel , Walid G. Aref, Ibrahim Kamel : Detection and Tracking of Discrete Phenomena in Sensor-Network Databases. SSDBM 2005 : 163-172 Hicham G. Elmongui , Mohamed F. Mokbel , Walid G. Aref: Spatio-temporal Histograms. SSTD 2005 : 19-36 Mohamed H. Ali , Walid G. Aref, Raja Bose , Ahmed K. Elmagarmid , Abdelsalam Helal , Ibrahim Kamel , Mohamed F. Mokbel : NILE-PDT: A Phenomenon Detection and Tracking Framework for Data Stream Management Systems. VLDB 2005 : 1295-1298 Mohamed F. Mokbel , Xiaopeng Xiong , Moustafa A. Hammad , Walid G. Aref: Continuous Query Processing of Spatio-Temporal Data Streams in PLACE. GeoInformatica 9 (4): 343-365 (2005) Mohamed F. Mokbel , Walid G. Aref: PLACE: A Scalable Location-aware Database Server for Spatio-temporal Data Streams. IEEE Data Eng. Bull. 28 (3): 3-10 (2005) Mohamed G. Elfeky , Walid G. Aref, Ahmed K. Elmagarmid : Periodicity Detection in Time Series Databases. IEEE Trans. Knowl. Data Eng. 17 (7): 875-887 (2005) Mourad Ouzzani , Walid G. Aref, Elisa Bertino , Ann Christine Catlin , Christopher W. Clifton , Wing-Kai Hon , Ahmed K. Elmagarmid , Arif Ghafoor , Susanne E. Hambrusch , Sunil Prabhakar , Jeffrey Scott Vitter , Xiang Zhang : The Indiana Center for Database Systems at Purdue University. SIGMOD Record 34 (2): 53-58 (2005) Mohamed G. Elfeky , Walid G. Aref, Ahmed K. Elmagarmid : Using Convolution to Mine Obscure Periodic Patterns in One Pass. EDBT 2004 : 605-620 Mohamed F. Mokbel , Ming Lu , Walid G. Aref: Hash-Merge Join: A Non-blocking Join Algorithm for Producing Fast and Early Join Results. ICDE 2004 : 251-263 Thanaa M. Ghanem , Rahul Shah , Mohamed F. Mokbel , Walid G. Aref, Jeffrey Scott Vitter : Bulk Operations for Space-Partitioning Trees. ICDE 2004 : 29-41 Mohamed F. Mokbel , Walid G. Aref, Khaled M. Elbassioni , Ibrahim Kamel : Scalable Multimedia Disk Scheduling. ICDE 2004 : 498-509 Moustafa A. Hammad , Mohamed F. Mokbel , Mohamed H. Ali , Walid G. Aref, Ann Christine Catlin , Ahmed K. Elmagarmid , M. Eltabakh , Mohamed G. Elfeky , Thanaa M. Ghanem , R. Gwadera , Ihab F. Ilyas , Mirette S. Marzouk , Xiaopeng Xiong : Nile: A Query Processing Engine for Data Streams. ICDE 2004 : 851 Ihab F. Ilyas , Rahul Shah , Walid G. Aref, Jeffrey Scott Vitter , Ahmed K. Elmagarmid : Rank-aware Query Optimization. SIGMOD Conference 2004 : 203-214 Mohamed F. Mokbel , Xiaopeng Xiong , Walid G. Aref: SINA: Scalable Incremental Processing of Continuous Queries in Spatio-temporal Databases. SIGMOD Conference 2004 : 623-634 Xiaopeng Xiong , Mohamed F. Mokbel , Walid G. Aref, Susanne E. Hambrusch , Sunil Prabhakar : Scalable Spatio-temporal Continuous Query Processing for Location-aware Services. SSDBM 2004 : 317- Mohamed F. Mokbel , Xiaopeng Xiong , Moustafa A. Hammad , Walid G. Aref: Continuous Query Processing of Spatio-temporal Data Streams in PLACE. STDBM 2004 : 57-64 Mohamed F. Mokbel , Xiaopeng Xiong , Walid G. Aref, Susanne E. Hambrusch , Sunil Prabhakar , Moustafa A. Hammad : PLACE: A Query Processor for Handling Real-time Spatio-temporal Data Streams. VLDB 2004 : 1377-1380 Thanaa M. Ghanem , Walid G. Aref: Databases Deepen the Web. IEEE Computer 37 (1): 116-117 (2004) Walid G. Aref, Mohamed G. Elfeky , Ahmed K. Elmagarmid : Incremental, Online, and Merge Mining of Partial Periodic Patterns in Time-Series Databases. IEEE Trans. Knowl. Data Eng. 16 (3): 332-342 (2004) Xingquan Zhu , Xindong Wu , Jianping Fan , Ahmed K. Elmagarmid , Walid G. Aref: Exploring video content structure for hierarchical summarization. Multimedia Syst. 10 (2): 98-115 (2004) Walid G. Aref, Ann Christine Catlin , Ahmed K. Elmagarmid , Jianping Fan , Moustafa A. Hammad , Ihab F. Ilyas , Mirette S. Marzouk , Sunil Prabhakar , Yi-Cheng Tu , Xingquan Zhu : VDBMS: A testbed facility for research in video database benchmarking. Multimedia Syst. 9 (6): 575-585 (2004) Ihab F. Ilyas , Walid G. Aref, Ahmed K. Elmagarmid : Supporting top-k join queries in relational databases. VLDB J. 13 (3): 207-221 (2004) Mohamed F. Mokbel , Walid G. Aref, Susanne E. Hambrusch , Sunil Prabhakar : Towards scalable location-aware services: requirements and research issues. GIS 2003 : 110-117 Xingquan Zhu , Walid G. Aref, Jianping Fan , Ann Christine Catlin , Ahmed K. Elmagarmid : Medical Video Mining for Efficient Database Indexing, Management and Access. ICDE 2003 : 569-580 Mohamed F. Mokbel , Walid G. Aref, Ananth Grama : Spectral LPM: An Optimal Locality-Preserving Mapping using the Spectral (not Fractal) Order. ICDE 2003 : 699-701 Walid G. Aref, Moustafa A. Hammad , Ann Christine Catlin , Ihab F. Ilyas , Thanaa M. Ghanem , Ahmed K. Elmagarmid , Mirette S. Marzouk : Video query processing in the VDBMS testbed for video database research. MMDB 2003 : 25-32 Moustafa A. Hammad , Walid G. Aref, Ahmed K. Elmagarmid : Stream Window Join: Tracking Moving Objects in Sensor-Network Databases. SSDBM 2003 : 75-84 Mohamed F. Mokbel , Walid G. Aref: On Querz Processing and Optimality Using Spectral Locality-Preserving Mappings. SSTD 2003 : 102-121 Moustafa A. Hammad , Michael J. Franklin , Walid G. Aref, Ahmed K. Elmagarmid : Scheduling for shared window joins over data streams. VLDB 2003 : 297-308 Ihab F. Ilyas , Walid G. Aref, Ahmed K. Elmagarmid : Supporting Top-k Join Queries in Relational Databases. VLDB 2003 : 754-765 Mohamed F. Mokbel , Walid G. Aref, Ibrahim Kamel : Analysis of Multi-Dimensional Space-Filling Curves. GeoInformatica 7 (3): 179-209 (2003) Mohamed F. Mokbel , Thanaa M. Ghanem , Walid G. Aref: Spatio-Temporal Access Methods. IEEE Data Eng. Bull. 26 (2): 40-49 (2003) Mohamed F. Mokbel , Walid G. Aref, Ibrahim Kamel : Performance of multi-dimensional space-filling curves. ACM-GIS 2002 : 149-154 Dmitri V. Kalashnikov , Sunil Prabhakar , Susanne E. Hambrusch , Walid G. Aref: Efficient Evaluation of Continuous Range Queries on Moving Objects. DEXA 2002 : 731-740 Xingquan Zhu , Jianping Fan , Walid G. Aref, Ahmed K. Elmagarmid : ClassMiner: Mining Medical Video Content Structure and Events Towards Efficient Access and Scalable Skimming. DMKD 2002 Christos Berberidis , Walid G. Aref, Mikhail J. Atallah , Ioannis P. Vlahavas , Ahmed K. Elmagarmid : Multiple and Partial Periodicity Mining in Time Series Databases. ECAI 2002 : 370-374 Walid G. Aref, Ann Christine Catlin , Ahmed K. Elmagarmid , Jianping Fan , J. Guo , Moustafa A. Hammad , Ihab F. Ilyas , Mirette S. Marzouk , Sunil Prabhakar , Abdelmounaam Rezgui , S. Teoh , Evimaria Terzi , Yi-Cheng Tu , Athena Vakali , Xingquan Zhu : A Distributed Database Server for Continuous Media. ICDE 2002 : 490-491 Walid G. Aref, Khaled El-Bassyouni , Ibrahim Kamel , Mohamed F. Mokbel : Scalable QoS-Aware Disk-Scheduling. IDEAS 2002 : 256-265 Walid G. Aref, Ann Christine Catlin , Jianping Fan , Ahmed K. Elmagarmid , Moustafa A. Hammad , Ihab F. Ilyas , Mirette S. Marzouk , Xingquan Zhu : A Video Database Management System for Advancing Video Database Research. Multimedia Information Systems 2002 : 8-17 Christos Berberidis , Ioannis P. Vlahavas , Walid G. Aref, Mikhail J. Atallah , Ahmed K. Elmagarmid : On the Discovery of Weak Periodicities in Large Time Series. PKDD 2002 : 51-61 Ihab F. Ilyas , Walid G. Aref, Ahmed K. Elmagarmid : Joining Ranked Inputs in Practice. VLDB 2002 : 950-961 Sunil Prabhakar , Yuni Xia , Dmitri V. Kalashnikov , Walid G. Aref, Susanne E. Hambrusch : Query Indexing and Velocity Constrained Indexing: Scalable Techniques for Continuous Queries on Moving Objects. IEEE Trans. Computers 51 (10): 1124-1140 (2002) F. A. Kokkoras , Haitao Jiang , Ioannis P. Vlahavas , Ahmed K. Elmagarmid , Elias N. Houstis , Walid G. Aref: Smart VideoText: a video data model based on conceptual graphs. Multimedia Syst. 8 (4): 328-338 (2002) Walid G. Aref: ACM-GIS 2001, Proceedings of the Ninth ACM International Symposium on Advances in Geographic Information Systems, Atlanta, GA, USA, November 9-10, 2001 ACM 2001 Mohamed F. Mokbel , Walid G. Aref: Irregularity in Multi-Dimensional Space-Filling Curves with Applications in Multimedia Databases. CIKM 2001 : 512-519 Walid G. Aref, Ihab F. Ilyas : An Extensible Index for Spatial Databases. SSDBM 2001 : 49-58 Susanne E. Hambrusch , Chuan-Ming Liu , Walid G. Aref, Sunil Prabhakar : Query Processing in Broadcasted Spatial Index Trees. SSTD 2001 : 502-521 James Joshi , Walid G. Aref, Arif Ghafoor , Eugene H. Spafford : Security models for web-based applications. Commun. ACM 44 (2): 38-44 (2001) Husni Fahmi , Walid G. Aref, Mudassir Latif , Basit Shafiq , Arif Ghafoor , Peiya Liu , Liang H. Hsu : Distributed web-based framework for real-time multimedia object communication. Comput. Syst. Sci. Eng. 16 (2): 79-88 (2001) Ashraf Aboulnaga , Walid G. Aref: Window Query Processing in Linear Quadtrees. Distributed and Parallel Databases 10 (2): 111-126 (2001) James Joshi , Arif Ghafoor , Walid G. Aref, Eugene H. Spafford : Digital Government Security Infrastructure Design Challenges. IEEE Computer 34 (2): 66-72 (2001) Walid G. Aref, Ibrahim Kamel , Shahram Ghandeharizadeh : Disk Scheduling in Video Editing Systems. IEEE Trans. Knowl. Data Eng. 13 (6): 933-950 (2001) Jianping Fan , David K. Y. Yau , Ahmed K. Elmagarmid , Walid G. Aref: Automatic image segmentation by integrating color-edge extraction and seeded region growing. IEEE Transactions on Image Processing 10 (10): 1454-1466 (2001) Walid G. Aref, Ihab F. Ilyas : SP-GiST: An Extensible Database Index for Supporting Space Partitioning Trees. J. Intell. Inf. Syst. 17 (2-3): 215-240 (2001) Jianping Fan , Walid G. Aref, Mohand-Said Hacid , Ahmed K. Elmagarmid : An improved automatic isotropic color edge detection technique. Pattern Recognition Letters 22 (13): 1419-1429 (2001) Elisa Bertino , Moustafa A. Hammad , Walid G. Aref, Ahmed K. Elmagarmid : An Access Control Model for Video Database Systems. CIKM 2000 : 336-343 Walid G. Aref, Ibrahim Kamel : On Multi-dimensional Sorting Orders. DEXA 2000 : 774-783 Husni Fahmi , Walid G. Aref, Mudassir Latif , Arif Ghafoor , Peiya Liu , Liang H. Hsu : Distributed Framework for Real-Time Multimedia Object Communication. ISORC 2000 : 252-259 Wael M. Badawy , Walid G. Aref: On Local Heuristics to Speed Up Polygon-Polygon Intersection Tests. ACM-GIS 1999 : 97-102 Cuneyt Akinlar , Walid G. Aref, Ibrahim Kamel , Sarit Mukherjee : Autonomous Disks: The Building Block for a Scalable Distributed File System. Multimedia Information Systems 1999 : 41-47 Walid G. Aref, Daniel Barbará : Supporting Electronic Ink Databases. Inf. Syst. 24 (4): 303-326 (1999) Walid G. Aref, Hanan Samet : Efficient Window Block Retrieval in Quadtree-Based Spatial Databases. GeoInformatica 1 (1): 59-91 (1997) Walid G. Aref, Hanan Samet : Cascaded Spatial Join Algorithms with Spatially Sorted Output. ACM-GIS 1996 : 17-24 Walid G. Aref, Daniel Barbará , Daniel P. Lopresti : Ink as a First-Class Datatype in Multimedia Databases. Multimedia Database System: Issues and Research Direction 1996 : 113-163 Walid G. Aref, Hanan Samet : A Window Retrieval Algorithm for Spatial Databases Using Quadtrees. ACM-GIS 1995 : 69- Walid G. Aref, Daniel Barbará , Stephen Johnson , Sharad Mehrotra : Efficient Processing of Proximity Queries for Large Databases. ICDE 1995 : 147-154 Walid G. Aref, Daniel Barbará , Padmavathi Vallabhaneni : The Handwritten Trie: Indexing Electronic Ink. SIGMOD Conference 1995 : 151-162 Hanan Samet , Walid G. Aref: Spatial Data Models and Query Processing. Modern Database Systems 1995 : 338-360 Walid G. Aref, Ibrahim Kamel , Daniel P. Lopresti : On Handling Electronic Ink. ACM Comput. Surv. 27 (4): 564-567 (1995) Walid G. Aref, Hanan Samet : An Algorithm for Perspective Viewing of Objects Represented by Octrees. Comput. Graph. Forum 14 (1): 59-66 (1995) Walid G. Aref, Hanan Samet : A Cost Model for Query Optimization Using R-Trees. ACM-GIS 1994 : 0- Walid G. Aref, Hanan Samet : Hashing by Proximity to Process Duplicates in Spatial Databases. CIKM 1994 : 347-354 Walid G. Aref, Hanan Samet : Estimating Selectivity Factors of Spatial Operations. FMLDO 1993 : 31-43 Walid G. Aref, Hanan Samet : Decomposing a Window into Maximal Quadtree Blocks. Acta Inf. 30 (5): 425-439 (1993) Walid G. Aref, Hanan Samet : Extending a DBMS with Spatial Operations. SSD 1991 : 299-318 Walid G. Aref, Hanan Samet : Optimization for Spatial Query Processing. VLDB 1991 : 81-90 Walid G. Aref, Hanan Samet : Efficient Processing of Window Queries in The Pyramid Data Structure. PODS 1990 : 265-272 1 [ 28 ] 2 [ 18 ] 3 [ 66 ] [ 75 ] [ 77 ] [ 80 ] 4 [ 38 ] [ 42 ] 5 [ 19 ] 6 [ 11 ] [ 12 ] [ 14 ] [ 17 ] 7 [ 38 ] [ 42 ] 8 [ 22 ] [ 71 ] 9 [ 75 ] 10 [ 39 ] [ 41 ] [ 52 ] [ 54 ] [ 57 ] [ 66 ] [ 71 ] 11 [ 71 ] 12 [ 40 ] 13 [ 67 ] 14 [ 59 ] [ 66 ] [ 70 ] [ 72 ] [ 81 ] 15 [ 22 ] [ 23 ] [ 25 ] [ 35 ] [ 37 ] [ 38 ] [ 39 ] [ 41 ] [ 42 ] [ 43 ] [ 48 ] [ 49 ] [ 51 ] [ 52 ] [ 54 ] [ 56 ] [ 57 ] [ 58 ] [ 59 ] [ 65 ] [ 66 ] [ 70 ] [ 71 ] [ 72 ] [ 75 ] [ 78 ] [ 81 ] 16 [ 76 ] 17 [ 66 ] 18 [ 86 ] 19 [ 86 ] 20 [ 20 ] [ 29 ] 21 [ 23 ] [ 25 ] [ 39 ] [ 41 ] [ 43 ] [ 54 ] [ 57 ] [ 58 ] 22 [ 49 ] 23 [ 20 ] [ 27 ] [ 29 ] [ 30 ] [ 71 ] 24 [ 26 ] 25 [ 46 ] [ 52 ] [ 60 ] [ 66 ] [ 68 ] 26 [ 53 ] 27 [ 41 ] 28 [ 66 ] 29 [ 23 ] 30 [ 31 ] [ 36 ] [ 44 ] [ 55 ] [ 61 ] [ 63 ] [ 71 ] 31 [ 22 ] [ 39 ] [ 41 ] [ 49 ] [ 51 ] [ 52 ] [ 57 ] [ 61 ] [ 62 ] [ 66 ] [ 74 ] [ 78 ] 32 [ 75 ] 33 [ 71 ] 34 [ 35 ] 35 [ 20 ] [ 29 ] 36 [ 24 ] [ 32 ] [ 37 ] [ 39 ] [ 41 ] [ 48 ] [ 52 ] [ 56 ] [ 57 ] [ 65 ] [ 66 ] [ 83 ] 37 [ 35 ] 38 [ 12 ] 39 [ 27 ] [ 30 ] 40 [ 36 ] [ 44 ] 41 [ 9 ] [ 18 ] [ 21 ] [ 26 ] [ 40 ] [ 45 ] [ 47 ] [ 67 ] [ 75 ] [ 77 ] 42 [ 35 ] 43 [ 20 ] [ 29 ] 44 [ 31 ] 45 [ 20 ] [ 29 ] 46 [ 9 ] [ 14 ] 47 [ 69 ] 48 [ 39 ] [ 41 ] [ 52 ] [ 57 ] [ 66 ] 49 [ 12 ] 50 [ 33 ] [ 40 ] [ 45 ] [ 46 ] [ 47 ] [ 50 ] [ 53 ] [ 55 ] [ 61 ] [ 62 ] [ 63 ] [ 64 ] [ 66 ] [ 67 ] [ 68 ] [ 69 ] [ 73 ] [ 74 ] [ 75 ] [ 76 ] [ 77 ] [ 79 ] [ 82 ] [ 84 ] 51 [ 18 ] 52 [ 80 ] 53 [ 71 ] 54 [ 31 ] [ 36 ] [ 41 ] [ 44 ] [ 55 ] [ 57 ] [ 61 ] [ 63 ] [ 71 ] 55 [ 41 ] 56 [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] [ 7 ] [ 8 ] [ 10 ] [ 13 ] [ 15 ] [ 16 ] 57 [ 29 ] 58 [ 65 ] [ 68 ] 59 [ 27 ] [ 30 ] 60 [ 41 ] 61 [ 41 ] 62 [ 41 ] [ 57 ] 63 [ 41 ] 64 [ 11 ] 65 [ 65 ] [ 68 ] [ 71 ] 66 [ 35 ] [ 38 ] [ 42 ] 67 [ 58 ] 68 [ 36 ] 69 [ 61 ] [ 62 ] [ 63 ] [ 64 ] [ 66 ] [ 74 ] [ 82 ] [ 84 ] [ 85 ] 70 [ 25 ] 71 [ 71 ] 72 [ 39 ] [ 41 ] [ 43 ] [ 54 ] [ 57 ] [ 58 ]  ©2006 Association for Computing Machinery |
