Hakan Ferhatosmanoglu
Professor
Department of Computer Science
hakan.f at warwick.ac.uk
Recent:
- Congratulations to Joe Oakley who defended his PhD thesis on "Enhancing Serverless Architectures for Data-Intensive Workloads”
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D3-GNN: Dynamic Distributed Dataflow for Streaming Graph Neural NetworksLink opens in a new window (codeLink opens in a new window on Apache Flink), with Rustam Guliyev and Aparajita Haldar, VLDB '24
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Fully Serverless Distributed Inference with Scalable Cloud CommunicationLink opens in a new window, with Joe OakleyLink opens in a new window, ICDE '24Link opens in a new window
- Serverless Spatio-temporal Traffic ForecastingLink opens in a new window, GeoInformatica '24
- Congratulations to Shuang Wang who defended her PhD thesis on "Learning-based Quantization for Graph Neural Networks and Spatio-Temporal Data Repositories"
- Congratulations to Chris Conlan who defended his PhD thesis on "Dynamic Spatio-Temporal Analytics for Measuring and Improving Accessibility in Cities"
- Aparajita presented our distributed GNNLink opens in a new window work in the Scalable ML sessionLink opens in a new window at VLDB in VancouverLink opens in a new window
- Congratulations to Teddy Cunningham for a Faculty of Science, Engineering, and Medicine PhD thesis prizeLink opens in a new window
- Low-bit quantization for graph neural networks;Link opens in a new window RustamLink opens in a new window presented the paper, at ACM CIKM '23 in BirminghamLink opens in a new window
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Spatio-temporal access queriesLink opens in a new window with applications to ML based urban accessibility analysisLink opens in a new window and healthcareLink opens in a new window
- Aparajita HaldarLink opens in a new window defended her PhD thesis, "Hypergraph-based Optimisations for Scalable Graph Analytics and Learning", congrats Aparajita!
- Real-time spatio-temporal forecastingLink opens in a new window, with a cloud-based software for TfWM
- Detecting spread, sentinel and susceptible nodes in temporal networksLink opens in a new window, ACM Transactions on Spatial Algorithms and Systems '23
- Scaling graph neural networksLink opens in a new window, PVLDB '22 (presentation in VLDB '23)
- Congratulations to Teddy CunninghamLink opens in a new window who defended his PhD thesis titled "Generating and Sharing Differentially Private Spatio-Temporal Data Using Real-World Knowledge"
- Fair recourse-aware rankingLink opens in a new window, ACM CIKM '22
- Faculty of Science, Engineering and Medicine Post-Doctoral Research Prize (2022)Link opens in a new window to Gunduz Demirci, for his work on parallel and distributed neural networks. Congratulations!
- Private spatio-temporal trajectory sharingLink opens in a new window with local differential privacy, VLDB '21
- Spatio-temporal quantizationLink opens in a new window for compressed storage and querying of large datasets, VLDB '21
- Synthetic spatial data generationLink opens in a new window with differential privacy, SSTD '21
- Distinguished PC at ACM SIGMOD '21Link opens in a new window
- Scaling deep learning training and inferenceLink opens in a new window via model-wise distributed memory parallelism and hypergraph partitioning, ACM ICS '21
- Scaling similarity ranking on large graphsLink opens in a new window, World Wide Web '21
- Project on spatio-temporal graph analytics, with WMCA and ADEPT Live Labs; post-doctoral researcher position
- Best CS dissertation award to Sean Hooker for his work on sparsification and quantization of deep neural networks
- Project on spatio-temporal ML, with TfWM, Immense Simulations, one.network, blacc, and O2
- Spatio-temporal forecastingLink opens in a new window via graph ML, ACM IMWUT '20
- Scalable linkageLink opens in a new window for large-scale spatio-temporal databases, ACM SIGMOD '20
BiographyLink opens in a new window
My research is on scalable data systems and analytics, spatial-temporal data management, and large-scale similarity search. The projects typically involve efficient management of information from multiple data sources while protecting the privacy of data subjects. Here are some recent publications.
Scalable Data Systems
- SQUASH: Serverless and Distributed Quantization-based Attributed Vector Similarity SearchLink opens in a new window
- D3-GNN: Dynamic Distributed Dataflow for Streaming Graph Neural NetworksLink opens in a new window
- FSD-Inference: Fully Serverless Distributed Inference with Scalable Cloud CommunicationLink opens in a new window
- RoleSim*: Scaling Axiomatic Role-based Similarity Ranking on Large GraphsLink opens in a new window
- SLIM: Scalable Linkage of Mobility DataLink opens in a new window
- Cascade-aware Partitioning of Large Graph DatabasesLink opens in a new window
- Distributed Block Formation and Layout for Disk-based Management of Large-Scale GraphsLink opens in a new window
- Scaling Forecasting Algorithms using Clustered ModelingLink opens in a new window
- ALACA: A Platform for Dynamic Alarm Collection and Alert Notification in Network Management SystemsLink opens in a new window
- Aggregate Profile Clustering for Telco AnalyticsLink opens in a new window
- Temporal Workload-Aware Replicated Partitioning for Social NetworksLink opens in a new window
- λ-diverse Nearest Neighbors Browsing for Multi-dimensional dataLink opens in a new window
- S3-TM: Scalable Streaming Short Text MatchingLink opens in a new window
Spatial-Temporal Data Management
- Foresight Plus: Serverless Spatio-temporal Traffic ForecastingLink opens in a new window
- Temporal Cascade Model for Analyzing Spread in Evolving NetworksLink opens in a new window
- Real-World Trajectory Sharing with Local Differential PrivacyLink opens in a new window
- Privacy-Preserving Synthetic Location Data in the Real WorldLink opens in a new window
- PPQ-Trajectory: Spatio-temporal Quantization for Querying in Large Trajectory RepositoriesLink opens in a new window
- GeoPointGAN: Synthetic Spatial Data with Local Label Differential Privacy
- Dynamic Spatio-temporal Access Queries using Semi-Supervised RegressionLink opens in a new window
- Collective Shortest Paths for Minimizing Congestion on Temporal Load-aware Road NetworksLink opens in a new window
- Spatio-Temporal Linkage over Location-Enhanced ServicesLink opens in a new window
- Fair Task Allocation in Crowdsourced DeliveryLink opens in a new window
- Privacy-Preserving Aggregate Queries for Optimal Location SelectionLink opens in a new window
- D3P: Data-driven Demand Prediction for Fast Expanding Electric Vehicle Sharing SystemsLink opens in a new window
- Diverse Relevance Feedback for Time Series with Autoencoder Based SummarizationsLink opens in a new window
- Predicting Optimal Facility Location Without Customer LocationsLink opens in a new window
- Generating Time-Varying Road Network Data Using Sparse TrajectoriesLink opens in a new window
- Div-BLAST: Diversification of Sequence Search ResultsLink opens in a new window
- Diversity based Relevance Feedback for Time Series SearchLink opens in a new window
Program/Organization Committee
ACM SIGMOD 2025, 2024, VLDB 2025; IEEE ICDE 2025; ACM SoCC 2025, 2024, 2023; SIGMOD 2022, 2021; ICDE 2022, 2021, 2020, 2019; IEEE Mobile Data Management 2022, 2021, 2020, 2019; ACM CIKM 2021, 2020, 2019; VLDB 2019, 2018, 2017; SIGMOD 2018; ACM SIGIR 2017, 2016; CIKM 2017; SIGMOD 2016Link opens in a new window, VLDB 2016Link opens in a new window, ECML/PKDD 2015Link opens in a new window, ECML/PKDD 2014Link opens in a new window, VLDB 2014Link opens in a new window, VLDB 2013Link opens in a new window, VLDB 2012 (Co-Chair, Workshops Program)Link opens in a new window, VLDB 2012 (PC)Link opens in a new window, SIGMOD 2011Link opens in a new window, ICDE 2011Link opens in a new window, ICDM 2011Link opens in a new window, ICDM 2010Link opens in a new window, ACM SIGSPATIAL 2010Link opens in a new window, SIGMOD 2010 (Org.)Link opens in a new window, SIGMOD 2010 (PC)Link opens in a new window...
Research Awards
- DOE Career Award, U.S. Department of Energy
- NSF Career Award, U.S. National Science Foundation
- Alexander von Humboldt Foundation, George Forster Award
- Large Interdisciplinary Research Award, OSU
- Lumley Research Accomplishment Award, OSU
- IBM Faculty Award
- Career Award, GEBIP, Turkish Academy of Sciences