Biography
I am an Adjunct Professor at the University of Wisconsin-Madison and a Senior Software Engineer at Google.
My research and professional work focus on AI and LLM-Powered Databases, Distributed, and Spatial Data Management.
At Google, I lead the design of LLM-powered SQL-to-SQL rewrite tools and the support of geospatial operators in distributed query engines. Academically, I explore scalable spatial, spatial-keyword, and spatio-temporal analytics, data cleaning, and AI and LLM-optimized databases.
Publications
Recent & Featured Work (2024–2026)
SOLAR: Scalable Distributed Spatial Joins through Learning-based Optimization
Y. Liu, A. Mahmood, A. Magdy, M. Zhu
To appear ICDE, 2026
Progressive and Scalable Hotspot Detection through Local K-Function in Spatial Networks
Y. Kang, Y. Liu, P. Juvekar, A. Mahmood, S. Wang, A. Magdy
ACM Transactions on Spatial Algorithms and Systems (TSAS), 2025
Pyneapple-L: Scalable Expressive Learning-based Spatial Analysis
Y. Liu et al., A. Mahmood, et al.
ACM SIGSPATIAL (Best Demo Award), 2024
Pyneapple-R: Scalable and Expressive Spatial Regionalization
Y. Kang, Y. Liu, H. Alrashid, A. Mahmood, et al.
IEEE ICDE, 2024
Books & Core Spatial-Keyword Research
Scalable Processing of Spatial-Keyword Queries (Complete Monograph)
A. R. Mahmood and W. G. Aref
Morgan & Claypool Publishers, 2019/2022
Select Systems Papers
PRUC: P-regions with user-defined constraint
Y. Liu, A. R. Mahmood, A. Magdy, and S. Rey
2022Proceedings of the VLDB Endowment (PVLDB) 15 (3)
An Experimental Evaluation and Investigation of Waves of Misery in R-trees
L. Xing, E. Lee, T. An, B. Chu, A. R. Mahmood, A. M. Aly, J. Wang, and W. G. Aref
2022Proceedings of the VLDB Endowment (PVLDB) 15 (3)
Horizon: Scalable Dependency-driven Data Cleaning
M. Ouzzani, W. G. Aref, A. K. Elmagarmid, A. R. Mahmood, and M. Stonebraker
2021Proceedings of the VLDB Endowment (PVLDB) 14 (11)
Swarm: Adaptive load balancing in distributed streaming systems for big spatial data
A. Daghistani, W. G. Aref, A. Ghafoor, and A. R. Mahmood
2021ACM Transactions on Spatial Algorithms and Systems (TSAS) 7 (3)
Prompt: Dynamic data-partitioning for distributed micro-batch stream processing systems
A. S. Abdelhamid, A. R. Mahmood, A. Daghistani, and W. G. Aref
2020Proceedings of the 2020 ACM SIGMOD International Conference on Management of Data
Spatio-temporal access methods: a survey (2010-2017)
A. R. Mahmood, S. Punni, and W. G. Aref
2019GeoInformatica 23 (1)
Adaptive processing of spatial-keyword data over a distributed streaming cluster
A. R. Mahmood, A. Daghistani, A. M. Aly, M. Tang, S. Basalamah, S. Prabhakar, and W. G. Aref
2018Proceedings of the 26th ACM SIGSPATIAL International Conference on Advances in GIS
FAST: frequency-aware indexing for spatio-textual data streams
A. R. Mahmood, A. M. Aly, and W. G. Aref
20182018 IEEE 34th International Conference on Data Engineering (ICDE)
Aqwa: adaptive query workload aware partitioning of big spatial data
A. M. Aly, A. R. Mahmood, M. S. Hassan, W. G. Aref, M. Ouzzani, and H. Elmeleegy
2015Proceedings of the VLDB Endowment (PVLDB) 8 (13)
Tornado: A distributed spatio-textual stream processing system
A. R. Mahmood, A. M. Aly, T. Qadah, E. K. Rezig, A. Daghistani, A. Madkour, et al.
2015Proceedings of the VLDB Endowment (PVLDB) 8 (12)
Full List on Google Scholar →