Khuzaima Daudjee

I am a Professor in the research stream and David R. Cheriton Faculty Fellow in the Cheriton School of Computer Science at the University of Waterloo.

I am interested in systems-oriented research. I work at the intersection of systems and data management, particularly on building large-scale systems, storage and infrastructure in the cloud and on modern hardware. I am affiliated with two research groups: Data Systems and Systems & Networks.

If you are interested in graduate studies, check out this link.

Awards/Honours

ACM Distinguished Scientist – awarded for outstanding scientific contributions to computing
ACM SIGMOD Best System Demonstration Awards
ACM Symposium on Cloud Computing Best Paper Award
Sapienza Fellowship (Category A: awarded to professors/researchers with an outstanding track record in their field)
Mercator Fellowship
Salesforce Research Award
Outstanding Performance Awards, University of Waterloo
VLDB Distinguished Associate Editor Awards
SIGMOD Distinguished Program Committee Member
VLDB Distinguished Reviewer Awards
EDBT Distinguished Meta-Reviewer

Activities

Program Committee Chair:
42nd IEEE International Conference on Data Engineering (ICDE 2026)
Associate Editor/Chair:
ACM SIGMOD 2025
Proc. VLDB 2026
ACM SIGMOD 2026
IEEE ICDE 2025
EDBT 2025
VLDB Journal
ACM Heidelberg Laureate Forum Selection Committee 2023-2024
Associate Editor/Chair:
ACM SIGMOD 2024
ACM SIGMOD 2023
Proceedings of VLDB Endowment (PVLDB) Volume 16 (2022-2023)
Proceedings of VLDB Endowment (PVLDB) Volume 15 (2021-2022)
38th IEEE International Conference on Data Engineering (ICDE 2022)
Information Systems 2017-2025
Distributed and Parallel Databases 2020-2024
IEEE Transactions on Knowledge and Data Engineering (TKDE) 2017-2022

Program Committees:

Publications

Some Refereed Papers:

• Zeynep Korkmaz, Tamer Özsu, Khuzaima Daudjee, Locality-Aware Cache Replacement Policy for Graph Traversals, to appear in Proc. VLDB 2025.
• S. Choy, J. Lee, B. Wong, K. Daudjee, Conflux: A Multi-homed Adaptive Bitrate Protocol for On-Site Live Video Streaming, to appear in IEEE/ACM Transactions on Networking.
• B. Guo, U. Anand, A. Chen, K. Daudjee, Cephalo: Harnessing Heterogeneous GPU Clusters for Training Transformer Models (preprint), to appear in ACM International Conference on Supercomputing, 2025.
• J. Zhang, Z. Pan, M. Xu, K. Daudjee, S. Liu, FreeRide: Harvesting Bubbles in Pipeline Parallelism, to appear in ACM/IFIP International Middleware Conference, 2025.
• T. Kashi, K. Salem, J. Kim, K. Daudjee, Eventual Durability, VLDB 2025.
• Mark Dodds, Khuzaima Daudjee, Apache Ignite + Calcite Composable Database System: Experimental Evaluation and Analysis, in EDBT 2025
• Joshua Hildred, Michael Abebe, Khuzaima Daudjee, Caerus: Low-Latency Distributed Transactions for Geo-Replicated Systems, in VLDB 2024.
• M. Khalaji, T. Brown, K. Daudjee, V. Aksenov, Practical Hardware Transactional vEB Trees, in 2024 ACM Symposium on Principles and Practice of Parallel Programming.
• Lasantha Fernando, Harsh Bindra, Khuzaima Daudjee, An Experimental Analysis of Quantile Sketches over Data Streams, in Proc. EDBT 2023.
• Michael Abebe^*, Horatiu Lazu, Khuzaima Daudjee, Tiresias: Enabling Predictive Autonomous Storage and Indexing, in Proc. VLDB 2022.
  *Cheriton School of Computer Science Distinguished Dissertation Award Winner
• B. Guo, V. Guo, A. Kim, J. Hildred, K. Daudjee, Hydrozoa: Dynamic Hybrid-Parallel DNN Training on Serverless Containers, in Proc. MLSys 2022.
• Michael Abebe, Horatiu Lazu, Khuzaima Daudjee, Proteus: Autonomous Adaptive Storage for Mixed Workloads, in Proc. of ACM International Conference on Management of Data (SIGMOD), 2022.

• Brad Glasbergen, Fangyu Wu, Khuzaima Daudjee, Dendrite: Bolt-on Adaptivity for Data Systems, in Proc. of ACM International Conference on Management of Data (SIGMOD) System Demonstration Track, 2021. Best System Demonstration Award
• Omar Farhat, Khuzaima Daudjee, Leonardo Querzoni, Klink: Progress-Aware Scheduling for Streaming Data Systems, in Proc. of ACM International Conference on Management of Data (SIGMOD), 2021.
• Kyle Langendoen, Brad Glasbergen, Khuzaima Daudjee, NIR-Tree: A Non-Intersecting R-Tree, in Proc. of 33rd International Conference on Scientific and Statistical Database Management (SSDBM), 2021.
• Michael Abebe, Brad Glasbergen, Khuzaima Daudjee, MorphoSys: Automatic Physical Design Metamorphosis for Distributed Database Systems, in Proc. VLDB 2020.
• Brad Glasbergen, Michael Abebe, Khuzaima Daudjee, Amit Levi, Sentinel: Universal Analysis and Insight for Data Systems, in Proc. VLDB 2020.
• Brad Glasbergen, Michael Abebe, Khuzaima Daudjee, Daniel Vogel, Jian Zhao, Sentinel: Understanding Data Systems, in Proc. of ACM International Conference on Management of Data (SIGMOD) Systems Demonstration Track, 2020. Best System Demonstration Award
• Brad Glasbergen, Kyle Langendoen, Michael Abebe, Khuzaima Daudjee, ChronoCache: Predictive and Adaptive Mid-Tier Query Result Caching, in Proc. of ACM International Conference on Management of Data (SIGMOD), 2020.
• Runsheng Benson Guo, Khuzaima Daudjee, Research Challenges in Deep Reinforcement Learning-based Join Query Optimization in aiDM@SIGMOD 2020.
• Michael Abebe, Brad Glasbergen, Khuzaima Daudjee, DynaMast: Adaptive Dynamic Mastering for Replicated Systems, in Proc. of IEEE International Conference on Data Engineering (ICDE), 2020.
• Omar Farhat, Harsh Bindra, Khuzaima Daudjee, Leaving Stragglers at the Window: Low-Latency Stream Sampling with Accuracy Guarantees, in Proc. 14th ACM International Conference on Distributed and Event-Based Systems (DEBS) 2020.
• M. Kazhamiaka, B. Memon, C. Kankanamge, S. Sahu, S. Rizvi, B. Wong, K. Daudjee, Sift: Resource-Efficient Consensus with RDMA, Proc. 2019 ACM CoNEXT, pages 260-271.
• Güneş Aluç, M. Tamer Özsu, Khuzaima Daudjee, Building Self-Clustering RDF Databases Using Tunable-LSH, VLDB Journal, Volume 28, Issue 2, pages 173-195, 2019.
• Michael Abebe, Brad Glasbergen, Khuzaima Daudjee, WatDFS: A Project for Understanding Distributed Systems in the Undergraduate Curriculum, ACM Technical Symposium on Computer Science Education (SIGCSE), pages 920-926, 2019.
• Brad Glasbergen, Michael Abebe, Khuzaima Daudjee, Tutorial: Adaptive Replication and Partitioning in Data Systems, in Proc. of the 19th ACM/IFIP/USENIX International Middleware Conference, 2018.
• Michael Abebe, Khuzaima Daudjee, Brad Glasbergen, Y. Tian, EC-Store: Bridging the Gap Between Storage and Latency in Distributed Erasure Coded Systems, in Proc. 38th IEEE International Conference on Distributed Computing Systems (ICDCS).
• B. Glasbergen, M. Abebe, K. Daudjee, S. Foggo, A. Pacaci, Apollo: Learning Query Correlations for Predictive Caching in Geo-Distributed Systems, in Proc. 21st International Conference on Extending Database Technology (EDBT), 2018.
• X. Cui, M. Mior, B. Wong, K. Daudjee, S. Rizvi, NetStore: Leveraging Network Optimizations to Improve Distributed Transaction Processing Performance in Proc. 2017 ACM International Workshop on Active Middleware on Modern Hardware.
• J. Mate, K. Daudjee, S. Kamali, Robust Multi-Tenant Server Consolidation in the Cloud for Data Analytics Workloads in Proc. 37th IEEE International Conference on Distributed Computing Systems (ICDCS), 2017.

• Minyang Han^*, Khuzaima Daudjee, Providing Serializability for Pregel-like Graph Processing Systems in Proc. 19th International Conference on Extending Database Technology (EDBT), 2016. Code is available here.
  *Winner of Governor General's Gold Medal (top research award university-wide)

• Shreya Agrawal, Khuzaima Daudjee, A Performance Comparison of Algorithms for Byzantine Agreement in Distributed Systems in Proc. 12th European Dependable Computing Conference, pages 249-260, 2016.

• S. Radhakrishnan, B. Muscedere, K. Daudjee, V-Hadoop: Virtualized Hadoop Using Containers, in Proc. 15th IEEE International Symposium on Network Computing and Applications (IEEE NCA), 2016.

• Minyang Han, Khuzaima Daudjee, Giraph Unchained: Barrierless Asynchronous Parallel Execution in Pregel-like Graph Processing Systems in Proc. VLDB 2015. Code for our GiraphUC system is available here.

• J. Kim, K. Salem, K. Daudjee, A. Aboulnaga, X. Pan, Database High Availability Using SHADOW Systems in Proc. ACM Symposium on Cloud Computing, 2015. Best Paper Award

• F. Abu-Khzam, K. Daudjee, A. Mouawad, N. Nishimura, On Scalable Parallel Recursive Backtracking, in Journal of Parallel and Distributed Computing, pages 65-75, 2015.

• J. Kim, K. Salem, K. Daudjee, Write Amplification: An Analysis of In-Memory Database Durability Techniques in Proc. VLDB International Workshop on In-Memory Data Management and Analytics (IMDM), 2015.

• F. Petroni, L. Querzoni, K. Daudjee, S. Kamali, G. Iacoboni, HDRF: Stream-Based Partitioning for Power-Law Graphs in Proc. 24th ACM International Conference on Information and Knowledge Management (CIKM), 2015. [HDRF has been integrated into PowerGraph.]

• D. Nicoara, S. Kamali, K. Daudjee, L. Chen, Hermes: Dynamic Partitioning for Distributed Social Network Graph Databases in Proc. 18th International Conference on Extending Database Technology (EDBT), 2015.

• G. Aluç, M. T. Özsu, K. Daudjee, O. Hartig, Executing Queries over Schemaless RDF Databases in Proc. 31st IEEE International Conference on Data Engineering (ICDE), 2015.

• G. Aluç, O. Hartig, M. T. Özsu, K. Daudjee, Diversified Stress Testing of RDF Data Management Systems, in Proc. 13th International Semantic Web Conference, 2014.

• Minyang Han, K. Daudjee, K. Ammar, M. T. Özsu, X. Wang, T. Jin, An Experimental Comparison of Pregel-like Graph Processing Systems, in Proc. VLDB 2014. Information on our experimental testbed is available from here.

• Prima Chairunnanda, Khuzaima Daudjee, M. Tamer Özsu, ConfluxDB: Multi-Master Replication for Partitioned Snapshot Isolation Databases, in Proc. VLDB 2014.

• Güneş Aluç, M. Tamer Özsu, Khuzaima Daudjee, Workload Matters: Why RDF Databases Need a New Design, in Proc. VLDB 2014.

• Khuzaima Daudjee, Shahin Kamali, Alejandro López-Ortiz, On the Online Fault-Tolerant Server Consolidation Problem in 26th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA 2014).

• A. Singh, X. Cui, B. Cassell, B. Wong, K. Daudjee, MicroFuge: A Middleware Approach to Providing Performance Isolation in Cloud Storage Systems, in 34th IEEE International Conference on Distributed Computing Systems (ICDCS).

• S. Chowdhury, A. Roy, M. Shaikh, K. Daudjee, A Taxonomy of Decentralized Online Social Networks in Peer-to-Peer Networking and Applications, Springer, 2014.

• B. Lei, I. Surya, S. Kamali, K. Daudjee, Data Partitioning for Video-on-Demand Services, in 12th IEEE International Symposium on Network Computing and Applications (IEEE NCA13).

• L. Northam, R. Smits, K. Daudjee, J. Istead, Ray Tracing in the Cloud using MapReduce, in the 2013 IEEE International Conference on High-Performance Computing and Simulation.

• Simon Forsyth, Khuzaima Daudjee, Update Management in Decentralized Social Networks, in Fifth ICDCS International Workshop on Hot Topics in Peer-to-peer computing and Online Social neTworking (HotPOST'13).

• P. Chairunnanda, S. Forsyth and K. Daudjee, Graph Data Partition Models for Online Social Networks, in 23rd ACM Conference on Hypertext and Social Media, 2012.

• Shahin Kamali, Pedram Ghodsnia, Khuzaima Daudjee, Dynamic Data Allocation with Replication in Distributed Systems, in the 30th IEEE International Conference on Performance Computing and Communications, 2011, 8 pages.

• Patrick Kling, M. Tamer Özsu, Khuzaima Daudjee, Scaling XML Query Processing: Distribution, Localization and Pruning, Distributed and Parallel Databases (DAPD) journal, Volume 29, Numbers 5-6, Pages 445-490, 2011.

• Patrick Kling, M. Tamer Özsu, Khuzaima Daudjee, Generating Efficient Execution Plans for Vertically Partitioned XML Databases, in Proc. of VLDB, Vol. 4, No. 1, 2011.

• S. Savinov, K. Daudjee, Dynamic Database Replica Provisioning through Virtualization, in Proceedings of the Second International Workshop on Cloud Data Management (CloudDB), Toronto, Canada, ACM press, 2010.

• Qiang Wang, Khuzaima Daudjee, M. Tamer Özsu, Popularity-aware Prefetch in P2P Range Caching, extended version of P2P'08 paper, in Peer-to-Peer Networking and Applications journal, Volume 3, Number 2, pages 145-160, Springer-Verlag, 2010.

• K. Henry, C. Swanson, Q. Xie, K. Daudjee, Efficient Hierarchical Quorums in Unstructured Peer-to-Peer Networks, in Proceedings of the 17th International Conference on Cooperative Information Systems (CoopIS), pages 183-200, Portugal, 2009.

• Qiang Wang, Khuzaima Daudjee, M. Tamer Özsu, Popularity-aware Prefetch in P2P Range Caching, in Proceedings of the 8th IEEE International Conference on Peer-to-Peer Computing (P2P'08), Germany, 2008, pages 53-62.

• Khuzaima Daudjee and Kenneth Salem, Lazy Database Replication with Snapshot Isolation, in Proceedings of the 32nd International Conference on Very Large Data Bases (VLDB), Seoul, Korea, pages 715-726, ACM Press, 2006.

My academic ancestry traces back to Galileo.

Teaching

CS 848 – Data Infrastructure (Winter 2025): focused on research problems related to managing data across large-scale systems infrastructure.

Contact

E-mail: firstname dot lastname @uwaterloo.ca

Office: Davis Centre 3512