Defending against energy efficient link layer jamming denial of service attack in wireless sensor networks. - Ahmed R. Mahmood; Hussein H. Aly; Mohamed N. El-Derini (AICCSA, 2011)

The Palm-tree Index: Indexing with the crowd. - Ahmed R. Mahmood; Walid G. Aref; Eduard C. Dragut; Saleh M. Basalamah (DBCrowd, 2013)

CRIS - Computational research infrastructure for science. - Eduard C. Dragut; Peter Baker; Jia Xu; Muhammad I. Sarfraz; Elisa Bertino; Amgad Madkour; Raghu Agarwal; Ahmed R. Mahmood; Sangchun Han (IRI, 2013)

Indexing recent trajectories of moving objects. - Ahmed R. Mahmood; Walid G. Aref; Ahmed M. Aly; Saleh M. Basalamah (SIGSPATIAL/GIS, 2014)

A Demonstration of AQWA: Adaptive Query-Workload-Aware Partitioning of Big Spatial Data. - Ahmed M. Aly; Ahmed S. Abdelhamid; Ahmed R. Mahmood; Walid G. Aref; Mohamed S. Hassan 002; Hazem Elmeleegy; Mourad Ouzzani (Proc. VLDB Endow., 2015)

AQWA: Adaptive Query-Workload-Aware Partitioning of Big Spatial Data. - Ahmed M. Aly; Ahmed R. Mahmood; Mohamed S. Hassan 002; Walid G. Aref; Mourad Ouzzani; Hazem Elmeleegy; Thamir Qadah (Proc. VLDB Endow., 2015)

Tornado: A Distributed Spatio-Textual Stream Processing System. - Ahmed R. Mahmood; Ahmed M. Aly; Thamir Qadah; El Kindi Rezig; Anas Daghistani; Amgad Madkour; Ahmed S. Abdelhamid; Mohamed S. Hassan 002; Walid G. Aref; Saleh M. Basalamah (Proc. VLDB Endow., 2015)

Atlas: on the expression of spatial-keyword group queries using extended relational constructs. - Ahmed R. Mahmood; Walid G. Aref; Ahmed M. Aly; MingJie Tang (SIGSPATIAL/GIS, 2016)

Cruncher: Distributed in-memory processing for location-based services. - Ahmed S. Abdelhamid; MingJie Tang; Ahmed M. Aly; Ahmed R. Mahmood; Thamir Qadah; Walid G. Aref; Saleh M. Basalamah (ICDE, 2016)

Query Processing Techniques for Big Spatial-Keyword Data. - Ahmed R. Mahmood; Walid G. Aref (SIGMOD Conference, 2017)

FAST: Frequency-Aware Spatio-Textual Indexing for In-Memory Continuous Filter Query Processing. - Ahmed R. Mahmood; Walid G. Aref; Ahmed M. Aly (CoRR, 2017)

Pattern-Driven Data Cleaning. - El Kindi Rezig; Mourad Ouzzani; Walid G. Aref; Ahmed K. Elmagarmid; Ahmed R. Mahmood (CoRR, 2017)

SRC: tornado: a distributed spatio-textual stream processing system. - Ahmed R. Mahmood (ACM SIGSPATIAL Special, 2017)

Adaptive processing of spatial-keyword data over a distributed streaming cluster. - Ahmed R. Mahmood; Anas Daghistani; Ahmed M. Aly; MingJie Tang; Saleh M. Basalamah; Sunil Prabhakar 001; Walid G. Aref (SIGSPATIAL/GIS, 2018)

FAST: Frequency-Aware Indexing for Spatio-Textual Data Streams. - Ahmed R. Mahmood; Ahmed M. Aly; Walid G. Aref (ICDE, 2018)

Disk-Based Indexing of Recent Trajectories. - Ahmed R. Mahmood; Ahmed M. Aly; Tatiana Kuznetsova; Saleh M. Basalamah; Walid G. Aref (ACM Trans. Spatial Algorithms Syst., 2018)

Efficient Support of Text and Time in Spatial Data Systems - Ahmed R. Mahmood (2018)

Indexing with Crowds. - Ahmed R. Mahmood; Walid G. Aref; Saleh M. Basalamah (Encyclopedia of Database Systems (2nd ed.), 2018)

An Investigation of Grid-enabled Tree Indexes for Spatial Query Processing. - Jaewoo Shin; Ahmed R. Mahmood; Walid G. Aref (SIGSPATIAL/GIS, 2019)

Spatio-temporal access methods: a survey (2010 - 2017). - Ahmed R. Mahmood; Sri Punni; Walid G. Aref (GeoInformatica, 2019)

Streaming Big Spatial Data. - Ahmed R. Mahmood; Walid G. Aref (Encyclopedia of Big Data Technologies, 2019)

Scalable Processing of Spatial-Keyword Queries - Ahmed R. Mahmood; Walid G. Aref (Morgan & Claypool Publishers, 2019)

Prompt: Dynamic Data-Partitioning for Distributed Micro-batch Stream Processing Systems. - Ahmed S. Abdelhamid; Ahmed R. Mahmood; Anas Daghistani; Walid G. Aref (SIGMOD Conference, 2020)

LocationSpark: In-memory Distributed Spatial Query Processing and Optimization. - Mingjie Tang; Yongyang Yu; Ahmed R. Mahmood; Qutaibah M. Malluhi; Mourad Ouzzani; Walid G. Aref (Frontiers Big Data, 2020)

SSTD: A Distributed System on Streaming Spatio-Textual Data. - Yue Chen; Zhida Chen; Gao Cong; Ahmed R. Mahmood; Walid G. Aref (Proc. VLDB Endow., 2020)

Horizon: Scalable Dependency-driven Data Cleaning. - El Kindi Rezig; Mourad Ouzzani; Walid G. Aref; Ahmed K. Elmagarmid; Ahmed R. Mahmood; Michael Stonebraker (Proc. VLDB Endow., 2021)

SWARM: Adaptive Load Balancing in Distributed Streaming Systems for Big Spatial Data. - Anas Daghistani; Walid G. Aref; Arif Ghafoor; Ahmed R. Mahmood (ACM Trans. Spatial Algorithms Syst., 2021)