Oktie Hassanzadeh is a Senior Research Scientist at IBM, working at the intersection of data management, knowledge graphs, and AI. His work focuses on large-scale data integration, semantic data discovery, and enabling large language models to reason over structured enterprise data. He has authored more than 160 publications and is an inventor on more than 30 patent applications, with contributions spanning data lakes, semantic technologies, text-to-SQL evaluation, and knowledge-driven AI systems. His recognitions include Best Paper awards at ESWC, a Best System Demonstration Award at ICAPS, first prize at the ISWC Semantic Web Challenge, membership in the winning team of the FinCausal Shared Task, and two first prizes at the SEMANTiCS Triplification Challenge. He earned his Ph.D. in Computer Science from the University of Toronto, where he received the IBM Ph.D. Fellowship and the Yahoo! Key Scientific Challenges Award. He co-organizes the TaDA workshop at VLDB and the SemTab challenge at ISWC, and regularly serves on program committees and review boards for leading venues including VLDB, IJCAI, AAAI, and ISWC.
160+ publications including 70+ top-quality peer-reviewed conference and journal articles and 32 patent applications (issued and pending)
21 years of research in Computer Science
26 years of experience in software development
Recipient of several IBM corporate awards and various academic prizes and awards
Extensive experience in supervising research projects and mentoring software engineers and graduate students
Holder of Teaching in Higher Education (THE500) Certificate from University of Toronto
Graduate of Advanced MicroMBA Course (IBM)
Lecturer in Professional Studies, Columbia University
Research Interests
Large-Scale Data Integration, Data Discovery, Data Exploration, and Data Curation
Text-to-SQL, Semantic Query Processing Engines, and AI-Native Data Systems
Benchmarking and Evaluation of LLM-Based Systems for Structured Enterprise Data
Knowledge Graphs, Semantic Web, Linked Data, and Automated Knowledge Base Construction
Recent Roles
Senior Research Scientist
IBM T.J. Watson Research Center
2011-12 - present · Yorktown Heights, NY
Leading research directions and building systems at the intersection of structured data, knowledge graphs, and AI/LLMs. Combines academic impact (best paper and best demonstration awards at top CS/AI/DM venues), system building (production deployments recognized through repeated IBM Research Accomplishment awards), and research leadership of multi-year programs and community-defining challenges.
Lecturer in Professional Studies
Columbia University
2025-09 - 2025-12 · New York, NY
Taught APAN 5400 — Fundamentals of Data Engineering, a core graduate course of Columbia's School of Professional Studies Applied Analytics program.
Education
Ph.D. in Computer Science
University of Toronto
M.Sc. in Computer Science
University of Toronto
B.Sc. in Computer Engineering — Dual Majors in Software Engineering and Hardware Engineering
Sharif University of Technology
Publications & Patents
163 entries
Sorted by year (newest first), including patents, with descending numbering.
Showing 163 entries
No.
Title
Authors
Venue
Year
Links
#163
Text-to-SQL Evaluation Toolkit
O. Hassanzadeh, Y. Perlitz, N. Pham, T. Kaple, K. Zrobek, L. Vu, M. Glass, D. Subramanian, M. Pourreza, D. Rafiei
VLDB (Demo Track)
2026
#162
When Text-to-SQL Evaluation Misleads: Rethinking Benchmarking Practices
O. Hassanzadeh, Y. Perlitz, N. Pham, T. Dinger, T. Kaple, L. Vu, M. Glass, S. Subramanian
IEEE ICDE (Extended Abstract)
2026
#161
Predicting Table Joinability in Data Lakes using a Metadata Knowledge Graph
S. Shirai, D. Bhattacharjya, O. Hassanzadeh, G. Rossiello
TaDA Workshop @ VLDB
2026
#160
Can a Single Tabular Embedding Model Service Different Tasks?
N. S. D'Souza, L. Vogel, K. Srinivas, S. Shirai, O. Hassanzadeh, H. Samulowitz
TaDA Workshop @ VLDB
2026
#159
Towards Universal Tabular Embeddings: A Benchmark Across Data Tasks
L. Vogel, K. Srinivas, N. S. D'Souza, S. Shirai, O. Hassanzadeh, H. Samulowitz
CoRR/arXiv
2026
#158
TabSketchFM: Sketch-based Tabular Representation Learning for Data Discovery over Data Lakes
A. Khatiwada, H. Kokel, I. Abdelaziz, S. Chaudhury, J. Dolby, O. Hassanzadeh, Z. Huang, T. Pedapati, H. Samulowitz, K. Srinivas
IEEE ICDE
2025
#157
Knowledge Base Construction for Knowledge-Augmented Text-to-SQL
J. Baek, H. Samulowitz, O. Hassanzadeh, D. Subramanian, S. Shirai, A. Gliozzo, D. Bhattacharjya
Findings of ACL
2025
#156
KG2Tables: A Domain-Specific Tabular Data Generator to Evaluate Semantic Table Interpretation Systems (Resource Paper)
N. Abdelmageed, E. Jiménez-Ruiz, O. Hassanzadeh, B. König-Ries
Trans. Graph Data Knowl.
2025
#155
TOPJoin: A Context-Aware Multi-Criteria Approach for Joinable Column Search
H. Kokel, A. Khatiwada, T. Pedapati, H. Ananthakrishnan, O. Hassanzadeh, H. Samulowitz, K. Srinivas
TaDA Workshop @ VLDB
2025
#154
Joint Proceedings of Industry, Doctoral Consortium, Posters and Demos of the 24th International Semantic Web Conference (ISWC-C 2025)
I. Celino, O. Hassanzadeh, A. Bernstein, N. F. Noy, G. Cheng, S. Wang, S. Ferrada, T. Soulard, K. Kozaki, H. Takeda, A. Gentile
CEUR Workshop Proceedings 4085, CEUR-WS.org (Nara, Japan, Nov 2-6)
2025
#153
Proceedings of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching co-located with the 23rd International Semantic Web Conference (ISWC 2024) (SemTab 2024)
O. Hassanzadeh, M. Cremaschi, V. Cutrona, F. D'Adda, V. Efthymiou, B. Kruit, E. A. Lobo, N. H. Pham
CEUR Workshop Proceedings 3889, CEUR-WS.org (Baltimore, USA, Nov 13)
2025
#152
Proceedings of the 19th International Workshop on Ontology Matching co-located with ISWC 2024 (OM-2024)
E. Jiménez-Ruiz, O. Hassanzadeh, C. Trojahn, S. Hertling, H. Li, P. Shvaiko, J. Euzenat
CEUR Workshop Proceedings 3897, CEUR-WS.org (Baltimore, USA, Nov 11)
2025
#151
Results of SemTab 2025
O. Hassanzadeh, M. Cremaschi, F. D'Adda, F. J. Azanzi, J. P. BIKIM, E. Jimenez-Ruiz
OM@ISWC
2025
#150
Sensible Join Discovery Framework for Tabular Data Integration in Data Lakes
A. Khatiwada, A. M. Gliozzo, D. Bhattacharjya, G. Rossiello, H. Kokel, H. C. Samulowitz, K. Srinivas, O. Hassanzadeh, U. Khurana
US Patent Application. Filed June 2025
2025
#149
Link Prediction Using an Ensemble of Representations and Rules
A. Khatiwada, O. Hassanzadeh, S. Shirai
US Patent Application. Filed September 2025
2025
#148
Knowledge Generation for Natural Language Interfaces to Databases
A. M. Gliozzo, D. Subramanian, H. C. Samulowitz, J. Baek, O. Hassanzadeh, S. Shirai
US Patent Application. Filed May 2025
2025
#147
Focused Natural Language Question Generation for Database Exploration
A. M. Gliozzo, D. Subramanian, G. Rossiello, L. Amini, L. H. Vu, M. F. M. Chowdhury, M. R. Glass, N. H. Pham, O. Hassanzadeh, T. Kaple, T. R. Dinger
US Patent Application. Filed March 2025
2025
#146
CHRONOS: A Schema-Based Event Understanding and Prediction System
M. Chang, A. Fokoue-nkoutche, R. Uceda-sosa, P. Awasthy, K. Barker, S. Kumaravel, O. Hassanzadeh, E. Figueiredo De Souza Soares, T. Gao, D. Bhattacharjya, H. Florian, S. Roukos
IAAI
2024
#145
Distilling Event Sequence Knowledge From Large Language Models
S. Wadhwa, O. Hassanzadeh, D. Bhattacharjya, K. Barker, J. Ni
ISWC
2024
#144
WikiCausal: Corpus and Evaluation Framework for Causal Knowledge Graph Construction
O. Hassanzadeh
ISWC Posters/Demos
2024
#143
KG2Tables: Your way to generate an STI benchmark for your domain
N. Abdelmageed, E. Jiménez-Ruiz, O. Hassanzadeh, B. König-Ries
ISWC Posters/Demos
2024
#142
Knowledge Graphs in Pharmacovigilance: A Scoping Review
M. Hauben, M. Rafi, I. Abdelaziz, O. Hassanzadeh
Clinical Therapeutics
2024
#141
2nd International Workshop on Tabular Data Analysis (TaDA)
V. Efthymiou, S. Galhotra, O. Hassanzadeh, C. Lei, K. Srinivas
VLDB Workshops
2024
#140
Results of SemTab 2024
O. Hassanzadeh, N. Abdelmageed, M. Cremaschi, V. Cutrona, F. D'Adda, V. Efthymiou, B. Kruit, E. Lobo, N. Mihindukulasooriya, N. H. Pham
SemTab@ISWC
2024
#139
Large-scale Schema Discovery for Lakehouses
A. M. Gliozzo, D. K. I. Weidele, G. Rossiello, M. F. M. Chowdhury, M. R. Glass, O. Hassanzadeh, S. Bagchi
US Patent Application. Filed May 2024
2024
#138
Pairwise Causality Guided Transformers for Event Sequences
X. Shou, D. Bhattacharjya, T. Gao, S. Subramanian, O. Hassanzadeh, K. Bennett
NeurIPS
2023
#137
Event Prediction using Case-Based Reasoning over Knowledge Graphs
S. Shirai, D. Bhattacharjya, O. Hassanzadeh
WWW
2023
#136
Probabilistic Rule Induction from Event Sequences with Logical Summary Markov Models
D. Bhattacharjya, O. Hassanzadeh, R. Luss, K. Murugesan
IJCAI
2023
#135
Probabilistic Attention-to-Influence Neural Models for Event Sequences
X. Shou, D. Bhattacharjya, T. Gao, D. Subramanian, O. Hassanzadeh, K. Bennett
ICML
2023
#134
An analysis of one-to-one matching algorithms for entity resolution
G. Papadakis, V. Efthymiou, E. Thanos, O. Hassanzadeh, P. Christen
VLDB J.
2023
#133
Unleashing the Potential of Data Lakes with Semantic Enrichment using Foundation Models
N. Mihindukulasooriya, S. Dash, S. Bagchi, F. Chowdhury, G. Rossiello, A. Gliozzo, A. Farkash, M. Glass, I. Gokhman, O. Hassanzadeh, N. Pham, B. Rozenberg, Y. Sagron, S. Subramanian, T. Takahashi, T. Tateishi, L. Vu
ISWC Industry Track
2023
#132
Conversational GUI for Semantic Automation Layer
D. K. I. Weidele, G. Rossiello, G. Bramble, A. N. Valente, S. Bagchi, Md. F. M. Chowdhury, M. Martino, N. Mihindukulasooriya, H. Ananthakrishnan, H. Strobelt, H. Patel, A. M. Gliozzo, O. Cornec, A. Gupta, S. Mehta, M. Kesarwani, H. Samulowitz, O. Hassanzadeh, A. Agarwal, L. Amini
ISWC Industry Track
2023
#131
A Case-Based Reasoning Approach to Knowledge-Based Event Prediction
S. Shirai, D. Bhattacharjya, O. Hassanzadeh
ISWC Demo Track
2023
#130
Matching Table Metadata with Business Glossaries Using Large Language Models
E. Lobo, O. Hassanzadeh, N. Pham, N. Mihindukulasooriya, D. Subramanian, H. Samulowitz
OM@ISWC
2023
#129
An Evaluation Framework for Mapping News Headlines to Event Classes in a Knowledge Graph
S. F. Mbouadeu, M. E. Lorenzo, K. Barker, O. Hassanzadeh
CASE @ RANLP
2023
#128
LakeBench: Benchmarks for Data Discovery over Data Lakes
K. Srinivas, J. Dolby, I. Abdelaziz, O. Hassanzadeh, H. Kokel, A. Khatiwada, T. Pedapati, S. Chaudhury, H. Samulowitz
CoRR/arXiv
2023
#127
Open Government Data Corpus for Table Search
M. Glass, S. Bagchi, O. Hassanzadeh, G. Rossiello, A. Gliozzo
CoRR/arXiv
2023
#126
Improving Neural Ranking Models with Traditional IR Methods
A. Saha, O. Hassanzadeh, A. Gittens, J. Ni, K. Srinivas, B. Yener
CoRR/arXiv
2023
#125
A Cross-Domain Evaluation of Approaches for Causal Knowledge Extraction
A. Saha, O. Hassanzadeh, A. Gittens, J. Ni, K. Srinivas, B. Yener
CoRR/arXiv
2023
#124
Joint Proceedings of Workshops at the 49th International Conference on Very Large Data Bases (VLDB 2023)
R. Bordawekar, C. Cappiello, V. Efthymiou, L. Ehrlinger, V. Gadepally, S. Galhotra, S. Geisler, S. Groppe, L. Gruenwald, A. Y. Halevy, H. Harmouch, O. Hassanzadeh, I. F. Ilyas, E. Jiménez-Ruiz, S. Krishnan, T. Lahiri, G. Li, J. Lu, W. Mauerer, U. Farooq Minhas, F. Naumann, M. T. Özsu, E. Rezig, K. Srinivas, M. Stonebraker, S. R. Valluri, M. Vidal, H. Wang, J. Wang, Y. Wu, X. Xue, M. Zaït, K. Zeng
Proceedings of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching, SemTab 2023, co-located with ISWC 2023
V. Efthymiou, E. Jiménez-Ruiz, J. Chen, V. Cutrona, O. Hassanzadeh, J. Sequeda, K. Srinivas, N. Abdelmageed, M. Hulsebos, A. Khatiwada, K. Korini, B. Kruit
CEUR Workshop Proceedings 3557, CEUR-WS.org (Athens, Greece, Nov 6-10)
2023
#122
Proceedings of the 18th International Workshop on Ontology Matching co-located with ISWC 2023 (OM@ISWC 2023)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, O. Hassanzadeh, C. Trojahn
CEUR Workshop Proceedings
2023
#121
Results of SemTab 2023
O. Hassanzadeh, N. Abdelmageed, V. Efthymiou, J. Chen, V. Cutrona, M. Hulsebos, E. Jiménez-Ruiz, A. Khatiwada, K. Korini, B. Kruit, J. Sequeda, K. Srinivas
SemTab@ISWC
2023
#120
Preface: Tabular Data Analysis Workshop (TaDA)
V. Efthymiou, O. Hassanzadeh, E. Jiménez-Ruiz, K. Srinivas
VLDB Workshops
2023
#119
Summary Markov Models for Event Sequences
D. Bhattacharjya, S. Sihag, O. Hassanzadeh, L. Bialik
IJCAI
2022
#118
Knowledge-Based News event Analysis and Forecasting Toolkit
O. Hassanzadeh, P. Awasthy, K. Barker, O. Bhardwaj, D. Bhattacharjya, M. Feblowitz, L. Martie, J. Ni, K. Srinivas, L. Yip
IJCAI Demonstration Track
2022
#117
Knowledge-Based News Event Analysis Toolkit
O. Hassanzadeh, P. Awasthy, K. Barker, O. Bhardwaj, D. Bhattacharjya, M. Feblowitz, A. Khatiwada, L. Martie, S. F. Mbouadeu, J. Ni, A. Saha, S. Shirai, K. Srinivas, L. Yip
ISWC Industry Track
2022
#116
Bipartite Graph Matching Algorithms for Clean-Clean Entity Resolution: An Empirical Evaluation
G. Papadakis, V. Efthymiou, E. Thanos, O. Hassanzadeh
EDBT
2022
#115
SPOCK at FinCausal 2022: Causal Information Extraction Using Span-Based and Sequence Tagging Models
A. Saha, J. Ni, O. Hassanzadeh, A. Gittens, K. Srinivas, B. Yener
FinCausal @ LREC (Winning Team)
2022
#114
Rule-Based Link Prediction over Event-Related Causal Knowledge in Wikidata
S. Shirai, A. Khatiwada, O. Hassanzadeh, D. Bhattacharjya
Wikidata Workshop @ ISWC
2022
#113
Knowledge graph embeddings for causal relation prediction
A. Khatiwada, S. Shirai, K. Srinivas, O. Hassanzadeh
DL4KG @ ISWC
2022
#112
Proceedings of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching (SemTab 2022) co-located with ISWC 2022
V. Efthymiou, E. Jiménez-Ruiz, J. Chen, V. Cutrona, O. Hassanzadeh, J. Sequeda, K. Srinivas, N. Abdelmageed, M. Hulsebos
CEUR Workshop Proceedings
2022
#111
Proceedings of the 17th International Workshop on Ontology Matching co-located with ISWC 2022 (OM@ISWC 2022)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, O. Hassanzadeh, C. Trojahn
CEUR Workshop Proceedings
2022
#110
Open Knowledge Network Roadmap – Powering the next data revolution
C. Baru, et al.
NSF Report (September)
2022
#109
IBM Scenario Planning Advisor: A Neuro-Symbolic ERM Solution
M. Feblowitz, O. Hassanzadeh, M. Katz, S. Sohrabi, K. Srinivas, O. Udrea
AAAI (Demonstration)
2021
#108
Predicting the Future with Wikidata and Wikipedia
O. Hassanzadeh
ISWC Demonstration
2021
#107
IBM Scenario Planning Advisor: A Neuro-Symbolic ERM Solution
M. Feblowitz, O. Hassanzadeh, M. Katz, S. Sohrabi, K. Srinivas, O. Udrea
AAAI Demonstration
2021
#106
Unsupervised Causal Knowledge Extraction from Text using Natural Language Inference
M. Bhandari, M. Feblowitz, O. Hassanzadeh, K. Srinivas, S. Sohrabi
AAAI Student Abstract
2021
#105
Building a Knowledge Graph of Events and Consequences Using Wikidata
O. Hassanzadeh
Wikidata Workshop @ ISWC
2021
#104
Scenario Planning In The Wild: A Neuro-Symbolic Approach
M. Katz, K. Srinivas, S. Sohrabi, M. Feblowitz, O. Udrea, O. Hassanzadeh
SPARK @ ICAPS
2021
#103
Towards a Framework for Data Excellence in Data-Centric AI: Lessons from the Semantic Web
O. Seneviratne, O. Hassanzadeh, D. Gruen, J. P. McCusker, D. McGuinness
NeurIPS DCAI Workshop
2021
#102
Proceedings of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching (SemTab 2021) co-located with ISWC 2021
E. Jiménez-Ruiz, O. Hassanzadeh, V. Efthymiou, J. Chen, K. Srinivas, V. Cutrona
CEUR Workshop Proceedings
2021
#101
Proceedings of the 16th International Workshop on Ontology Matching co-located with ISWC 2021 (OM@ISWC 2021)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, O. Hassanzadeh, C. Trojahn
CEUR Workshop Proceedings
2021
#100
Results of SemTab 2021
V. Cutrona, J. Chen, V. Efthymiou, O. Hassanzadeh, E. Jiménez-Ruiz, J. Sequeda, K. Srinivas, N. Abdelmageed, M. Hulsebos, D. Oliveira, C. Pesquita
SemTab@ISWC
2021
#99
Unsupervised Causal Knowledge Extraction from Text
M. Bhandari, M. Feblowitz, O. Hassanzadeh, K. Srinivas, S. Sohrabi
US Patent Application. Filed June 2021
2021
#98
Automated Scenario Generation from Text
M. Katz, K. Srinivas, S. Sohrabi, M. Feblowitz, O. Udrea, O. Hassanzadeh
US Patent Application. Filed March 2021
2021
#97
Causal Knowledge Extraction through Large-Scale Text Mining
O. Hassanzadeh, D. Bhattacharjya, M. Feblowitz, K. Srinivas, M. Perrone, S. Sohrabi, M. Katz
AAAI (Demonstration)
2020
#96
IBM Scenario Planning Advisor: A Neuro-Symbolic ERM solution
M. Feblowitz, O. Hassanzadeh, M. Katz, S. Sohrabi, K. Srinivas, O. Udrea
ICAPS System Demonstration (Best System Demonstration Award)
2020
#95
SemTab 2019: Resources to Benchmark Tabular Data to Knowledge Graph Matching Systems
E. Jiménez-Ruiz, O. Hassanzadeh, V. Efthymiou, J. Chen, K. Srinivas
ESWC
2020
#94
Interactive Planning-Based Hypothesis Generation with LTS++
S. Sohrabi, O. Udrea, A. Riabov, O. Hassanzadeh
Knowledge Engineering Tools and Techniques for AI Planning
2020
#93
A minimal information model for potential drug-drug interactions
H. Hochheiser, X. Jing, E. Garcia, S. Ayvaz, R. Sahay, M. Dumontier, J. M. Banda, O. Beyan, M. Brochhausen, E. Draper, S. Habiel, O. Hassanzadeh, M. Herrero-Zazo, B. Hocum, J. Horn, B. Lebaron, D. C. Malone, Ø. Nytrø, T. Reese, K. Romagnoli, J. Schneider, L. Y. Zhang, R. D. Boyce
Frontiers in Pharmacology
2020
#92
Proceedings of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching (SemTab 2020) co-located with ISWC 2020
E. Jiménez-Ruiz, O. Hassanzadeh, V. Efthymiou, J. Chen, K. Srinivas, V. Cutrona
CEUR Workshop Proceedings (November 5)
2020
#91
Proceedings of the 15th International Workshop on Ontology Matching co-located with ISWC 2020 (OM@ISWC 2020)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, O. Hassanzadeh, C. Trojahn
CEUR Workshop Proceedings 2788, CEUR-WS.org
2020
#90
Proceedings of the Semantic Web Challenge on Tabular Data to Knowledge Graph Matching co-located with ISWC 2019 (SemTab@ISWC 2019)
E. Jiménez-Ruiz, O. Hassanzadeh, K. Srinivas, V. Efthymiou, J. Chen
CEUR Workshop Proceedings 2553, CEUR-WS.org (Auckland, New Zealand, Oct 30)
2020
#89
Proceedings of the 14th International Workshop on Ontology Matching co-located with ISWC 2019 (OM@ISWC 2019)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, O. Hassanzadeh, C. Trojahn
CEUR Workshop Proceedings 2536, CEUR-WS.org (Auckland, New Zealand, Oct 26)
2020
#88
Results of SemTab 2020
E. Jiménez-Ruiz, O. Hassanzadeh, V. Efthymiou, J. Chen, K. Srinivas, V. Cutrona
SemTab@ISWC
2020
#87
Answering Binary Causal Questions Through Large-Scale Text Mining: An Evaluation Using Cause-Effect Pairs from Human Experts
O. Hassanzadeh, D. Bhattacharjya, M. D. Feblowitz, K. Srinivas, M. Perrone, S. Sohrabi, M. Katz
IJCAI
2019
#86
IBM Scenario Planning Advisor: Plan recognition as AI planning in practice
S. Sohrabi, M. Katz, O. Hassanzadeh, O. Udrea, M. D. Feblowitz, A. Riabov
AI Commun.
2019
#85
Automated Feature Enhancement for Predictive Modeling using External Knowledge
S. Galhotra, U. Khurana, O. Hassanzadeh, K. Srinivas, H. Samulowitz, M. Qi
ICDM Demonstration Track
2019
#84
KAFE: Automated Feature Enhancement for Predictive Modeling using External Knowledge
S. Galhotra, U. Khurana, O. Hassanzadeh, K. Srinivas, H. Samulowitz
KR2ML @ NeurIPS
2019
#83
Causal Knowledge Extraction from Text
O. Hassanzadeh, D. Bhattacharjya, M. D. Feblowitz, K. Srinivas, M. Perrone, S. Sohrabi, M. Katz
US Patent Application. Filed June 2019
2019
#82
Semantic Concept Discovery over Event Databases
O. Hassanzadeh, S. Trewin, A. Gliozzo
ESWC (Best In-Use Track Paper Award)
2018
#81
IBM Scenario Planning Advisor: Plan Recognition as AI Planning in Practice
S. Sohrabi, M. Katz, O. Hassanzadeh, O. Udrea, M. D. Feblowitz
IJCAI (Runner-Up Best Demo Award)
2018
#80
Inducing Implicit Relations from Text Using Distantly Supervised Deep Nets
M. Glass, A. Gliozzo, O. Hassanzadeh, N. Mihindukulasooriya, G. Rossiello
ISWC
2018
#79
Ontology Augmentation Through Matching with Web Tables
O. Lehmberg, O. Hassanzadeh
OM Workshop
2018
#78
Proceedings of the 13th International Workshop on Ontology Matching co-located with ISWC 2018 (OM@ISWC 2018)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, M. Cheatham, O. Hassanzadeh, R. Ichise
CEUR Workshop Proceedings 2288, CEUR-WS.org (Monterey, CA, USA, Oct 8)
2018
#77
Semantic Concept Discovery over Event Databases
O. Hassanzadeh, S. Trewin, A. Gliozzo
US Patent Application. Filed October 2018
2018
#76
High-Quality Knowledge Base Construction Through Comprehensive Noise Detection
N. Mihindukulasooriya, O. Hassanzadeh, S. Dash, A. Gliozzo
US Patent Application. Filed September 2018
2018
#75
Large-scale structural and textual similarity-based mining of knowledge graph to predict drug-drug interactions
I. Abdelaziz, A. Fokoue, O. Hassanzadeh, P. Zhang, M. Sadoghi
J. Web Semant.
2017
#74
Matching Web Tables with Knowledge Base Entities: From Entity Lookups to Entity Embeddings
V. Efthymiou, O. Hassanzadeh, M. Rodriguez-Muro, V. Christophides
ISWC
2017
#73
Semantic Concept Discovery Over Event Data
O. Hassanzadeh, S. Trewin, A. Gliozzo
ISWC Industry Track
2017
#72
Proceedings of the 11th International Workshop on Ontology Matching collocated with ISWC 2017 (OM@ISWC 2017)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, M. Cheatham, O. Hassanzadeh, R. Ichise
CEUR Workshop Proceedings 2032, CEUR-WS.org (Vienna, Austria, Oct 21)
2017
#71
Predicting Drug-Drug Interactions Through Large-Scale Similarity-Based Link Prediction
A. Fokoue, M. Sadoghi, O. Hassanzadeh, P. Zhang
ESWC (Best In-Use Track Paper Award)
2016
#70
Predicting Drug-Drug Interactions Through Similarity-Based Link Prediction Over Web Data
A. Fokoue, O. Hassanzadeh, M. Sadoghi, P. Zhang
WWW Companion
2016
#69
Self-Curating Databases
M. Sadoghi, K. Srinivas, O. Hassanzadeh, Y. Chang, M. Canim, A. Fokoue, Y. Feldman
EDBT
2016
#68
Tiresias: Knowledge Engineering and Large-Scale Machine Learning for Interpretable Drug-Drug Interaction Prediction
A. Fokoue, O. Hassanzadeh, M. Sadoghi, P. Zhang
AMIA System Demonstration
2016
#67
Towards Large-Scale Predictive Drug Safety: A Computational Framework for Inferring Drug Interactions Through Similarity-Based Link Prediction
A. Fokoue, O. Hassanzadeh, M. Sadoghi, P. Zhang
AMIA Poster
2016
#66
Joint Learning of Local and Global Features for Entity Linking via Neural Networks
T. H. Nguyen, N. R. Fauceglia, M. Rodriguez-Muro, O. Hassanzadeh, A. M. Gliozzo, M. Sadoghi
COLING
2016
#65
Finding Diverse High-Quality Plans for Hypothesis Generation
S. Sohrabi, A. V. Riabov, O. Udrea, O. Hassanzadeh
ECAI
2016
#64
Interactive Planning-Based Hypothesis Generation with LTS++
S. Sohrabi, A. V. Riabov, O. Udrea, O. Hassanzadeh
IJCAI
2016
#63
Proceedings of the 11th International Workshop on Ontology Matching collocated with ISWC 2016 (OM@ISWC 2016)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, M. Cheatham, O. Hassanzadeh, R. Ichise
CEUR Workshop Proceedings 1766 (Kobe, Japan, Oct 18)
2016
#62
Proceedings of the 10th International Workshop on Ontology Matching collocated with ISWC 2015 (OM@ISWC 2015)
P. Shvaiko, J. Euzenat, E. Jiménez-Ruiz, M. Cheatham, O. Hassanzadeh
CEUR Workshop Proceedings 1545 (Bethlehem, PA, USA, Oct 12)
2016
#61
System and Method for Learning Semantic-Aware Graph Embeddings Using Set-centric Approach
G. I. Diaz, A. Fokoue, M. Sadoghi, O. Hassanzadeh, M. Rodriguez-Muro
IBM Docket YOR820161380. Filed November 2016.
2016
#60
System and Method for Joint Learning of Local and Global Features for Entity Linking via Neural Networks
T. H. Nguyen, N. R. Fauceglia, M. Sadoghi, M. Rodriguez-Muro, O. Hassanzadeh, A. M. Gliozzo
IBM Docket YOR820161390. Filed October 2016.
2016
#59
Augmenting Knowledge Graphs with Concise Higher-Level Relationships
R. Farrell, M. Sadoghi, O. Hassanzadeh, M. Sellmann
IBM Docket YOR820161233. Filed August 2016.
2016
#58
Automatic and Interpretable Linkage Prediction Through Knowledge-Driven Similarity Analysis
O. Hassanzadeh, A. Fokoue, M. Sadoghi, R. Farrell, M. Sellmann, P. Zhang
IBM Docket YOR820160603. Filed July 2016.
2016
#57
System and Methods for Expressive Temporal Prediction Over Semantically-Driven Time Window
M. Sadoghi, R. Farrell, O. Hassanzadeh, M. Sellmann
IBM Docket YOR820160591. Filed July 2016.
2016
#56
A Method and System for Efficient Online, Iterative, Targeted Feature Selection
R. Farrell, M. Sadoghi, M. Sellmann, O. Hassanzadeh
IBM Docket YOR820160589. Filed July 2016.
2016
#55
Toward a Complete Dataset of Drug-Drug Interaction Information from Publicly Available Sources
S. Ayvaz, J. R. Horn, O. Hassanzadeh, Q. Zhu, J. Stan, N. P. Tatonetti, S. Vilar, M. Brochhausen, M. Samwald, M. Rastegar-Mojarad, M. Dumontier, R. D. Boyce
J. Biomedical Informatics
2015
#54
Schema Management for Document Stores
L. Wang, O. Hassanzadeh, S. Zhang, J. Shi, L. Jiao, J. Zou, C. Wang
PVLDB
2015
#53
Automatic Curation of Clinical Trials Data in LinkedCT
O. Hassanzadeh, R. J. Miller
ISWC
2015
#52
LinkedCT Live: Platform for Online Curation of Clinical Trials Data
O. Hassanzadeh, R. J. Miller, F. Nargesian, E. Zhu
ISWC Demonstration
2015
#51
VizCurator: A Visual Tool for Curating Open Data
B. Ghadiri Bashardoost, C. Christodoulakis, S. Hassas Yeganeh, R. J. Miller, K. Lyons, O. Hassanzadeh
WWW Companion
2015
#50
Understanding a Large Corpus of Web Tables Through Matching with Knowledge Bases
O. Hassanzadeh, M. J. Ward, K. Srinivas, M. Rodriguez-Muro
OM Workshop
2015
#49
Knowledge Graph Augmentation through Schema Extension
O. Hassanzadeh, O. Lehmberg, M. Sadoghi Hamedani
IBM Docket YOR820151554. Filed September 2015.
2015
#48
A System for Personalized and Detailed Adverse Drug Reactions Prediction
A. Fokoue, P. Zhang, O. Hassanzadeh, M. Sadoghi Hamedani, M. Sellmann
IBM Docket YOR820151392. Filed September 2015.
2015
#47
Method and Apparatus for Identifying Semantically Related Records
A. Kementsietsidis, O. Hassanzadeh
IBM Docket YOR820140306. Filed September 2015.
2015
#46
Exploring Big Data with Helix: Finding Needles in a Big Haystack
J. B. Ellis, A. Fokoue, O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward
SIGMOD Record
2014
#45
Method to Compute Top-K Plans and Top-M Clusters of Plans
S. Sohrabi, O. Udrea, A. V. Riabov, O. Hassanzadeh
IBM Docket YOR820140621. Filed September 2014.
2014
#44
A Method for Data Virtualization Across Heterogeneous Formats
O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward, A. Fokoue
IBM Docket YOR820131244. Filed May 2014.
2014
#43
Discovering Linkage Points over Web Data
O. Hassanzadeh, K. Q. Pu, S. Hassas Yeganeh, R. J. Miller, M. Hernandez, L. Popa, H. Ho
PVLDB
2013
#42
Next Generation Data Analytics at IBM Research
O. Hassanzadeh, A. Kementsietsidis, B. Kimelfeld, R. Krishnamurthy, F. Ozcan, I. Pandis
VLDB Industry Vision
2013
#41
Extending the Web of Drug Identity with Knowledge Extracted from United States Product Labels
O. Hassanzadeh, Q. Zhu, R. Freimuth, R. D. Boyce
AMIA Summit on Translational Bioinformatics
2013
#40
Dynamic Enhancement of Drug Product Labels to Support Drug Safety, Efficacy, and Effectiveness
R. D. Boyce, J. R. Horn, O. Hassanzadeh, A. de Waard, J. Schneider, J. S. Luciano, M. Rastegar-Mojarad, M. Liakata
J. Biomedical Semantics
2013
#39
Method and Apparatus of Replicating Records Based on Correlated Attributes for Multi-Column Range Summaries
M. Sadoghi Hamedani, T. Malkemus, Y. Chang, O. Hassanzadeh
IBM Docket YOR820130867. Filed September 2013.
2013
#38
Methods and System for Discovery of Linkage Points between Data Sources
O. Hassanzadeh, M. Hernandez, L. Popa, H. Ho
IBM Docket YOR820121699. Filed January 2013.
2013
#37
Uniform Search, Navigation and Combination of Heterogeneous Data
J. Ellis, O. Hassanzadeh, M. J. Ward
IBM Docket YOR820121432. Filed May 2013.
2013
#36
Method and Apparatus of Replicating Records based on Correlated Attributes for Multi-Column Range Summaries
M. Sadoghi Hamedani, T. Malkemus, Y. Chang, O. Hassanzadeh
IBM Docket YOR820130867. Filed October 2013.
2013
#35
Instance-Based Matching of Large Ontologies Using Locality-Sensitive Hashing
S. Duan, A. Fokoue, O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward
ISWC
2012
#34
Data Management Issues on the Semantic Web
O. Hassanzadeh, A. Kementsietsidis, Y. Velegrakis
ICDE Seminar
2012
#33
Publishing Bibliographic Data on the Semantic Web using BibBase
R. S. Xin, O. Hassanzadeh, C. Fritz, S. Sohrabi, R. J. Miller
Semantic Web Journal
2012
#32
Semantic Link Discovery over Relational Data
O. Hassanzadeh, A. Kementsietsidis, L. Lim, R. J. Miller, M. Wang
Book Chapter: Semantic Search over the Web, Springer
2012
#31
Record Linkage for Web Data
O. Hassanzadeh
Ph.D. Thesis, University of Toronto
2012
#30
System and Methods for Linking Data Elements Based on Similarity of Data Values and Semantic Annotations
J. Ellis, A. Fokoue, O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward
IBM Docket YOR920120394US1 & YOR920120394US2. Filed June-July 2012.
2012
#29
System and Methods for Linking Data Elements Based on Similarity of Data Values and Semantic Annotations
S. Duan, A. Fokoue, O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward
IBM Docket YOR920120394US1 & YOR920120394US2. Filed June-July 2012.
2012
#28
Linked Open Drug Data for Pharmaceutical Research and Development
M. Samwald, A. Jentzsch, C. Bouton, C. Kallesøe, E. Willighagen, J. Hajagos, M. S. Marshall, E. Prud'hommeaux, O. Hassanzadeh, E. Pichler, S. Stephens
J. Cheminformatics
2011
#27
Helix: Online Enterprise Data Analytics
O. Hassanzadeh, S. Duan, A. Fokoue, A. Kementsietsidis, K. Srinivas, M. J. Ward
WWW Demo Track
2011
#26
Linking Semistructured Data on the Web
S. Hassas Yeganeh, O. Hassanzadeh, R. J. Miller
WebDB
2011
#25
Annotating Schema Elements Based on Associating Data Instances with Knowledge Base Entities
S. Duan, A. Fokoue, O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward
US Patent Application 2012/0246175 A1. Filed March 2011.
2011
#24
Aggregating Search Results Based on Associating Data Instances with Knowledge Base Entities
S. Duan, A. Fokoue, O. Hassanzadeh, A. Kementsietsidis, K. Srinivas, M. J. Ward
US Patent Application 2012/0246154 A1. Filed March 2011.
2011
#23
Semantic Link Discovery
O. Hassanzadeh, A. Kementsietsidis, L. Lim, M. Wang
US Patent Application 2011/0106836 A1. 2009.
2011
#22
Online Annotation of Text Streams with Structured Entities
K. Q. Pu, O. Hassanzadeh, R. Drake, R. J. Miller
CIKM
2010
#21
BibBase Triplified
O. Hassanzadeh, R. S. Xin, C. Fritz, Y. Yang, J. Du, M. Zhao, R. J. Miller
Helix addressed the problem of data discovery and curation of structured data in data lakes before the term "data lake" was coined. The system included an innovative user interface as well as a novel and highly efficient indexing mechanism for similarity analysis.
Data DiscoveryData CurationIndexingSimilarity AnalysisUI
CS 443 Database System Technology (Semantic Web, Linked Data)
University of Toronto
Invited Lecturer · Winter 2011
THE500 — selective program for senior PhD students and postdoctoral fellows on effective teaching strategies in higher education
Woodsworth College, University of Toronto
Teaching in Higher Education (THE500) Certificate · Winter 2011
CSC343 Introduction to Databases (Winter 2008, Winter 2009, Winter 2010); CSC467 Compilers and Interpreters (Fall 2005, Fall 2007); CSCA02 Why and How of Computing (Winter 2006, Fall 2006, Winter 2007)
University of Toronto
Teaching Assistant · 2005–2010
Programming Languages Design, Electrical and Computer Engineering Department
Shahid Beheshti University
Teaching Assistant · Fall 2004
Artificial Intelligence and Digital Systems Design, Computer Engineering Department
Sharif University of Technology
Teaching Assistant · Fall 2004
Digital Systems Design Laboratory, Computer Engineering Department
Sharif University of Technology
Instructor · Fall 2003
Professional Service
Senior Program Committee Member, ICDE 2027 (Research Track)
Co-Organizer, TaDA Workshop @ VLDB 2026
Sponsorship Co-Chair, IEEE ICDE 2026
Sponsorship Co-Chair, EDBT 2026
Senior Program Committee Member, AAAI 2026 (Research Track)
Program Committee Member, AAAI 2026 (Demo Track)
Co-Organizer, Beyond SQL: AI for Complex Data Management Workshop @ ICDE 2026
Co-Organizer, SURGeLLM Workshop @ ACL 2026
Program Committee Member, ISWC 2026
Senior Program Committee Member, ESWC 2026 (Resources Track)
Area Chair, IJCAI 2025
Co-Organizer, TaDA Workshop @ VLDB 2025
Member of the Review Board, PVLDB 2025-2026
Program Committee Member, EDBT 2025 Industrial and Application Track
Co-Chair, Industry Track, ISWC 2025
Co-Organizer, SemTab @ ISWC 2025
Co-Organizer, OM Workshop 2025
Senior Program Committee Member, Resource Track, ESWC 2025
Co-Organizer, Tabular Data, Semantics, and AI Seminar Series at IBM Research, 2024-2025
Member of the Review Board, PVLDB 2024-2025
Co-Organizer, TaDA Workshop @ VLDB 2024
Co-Organizer, SemTab @ ISWC 2024
Co-Organizer, OM Workshop 2024
Senior Program Committee Member, IJCAI 2024
Senior Program Committee Member, ESWC 2024
Co-Organizer, TaDA Workshop @ VLDB 2023
Participant, DARPA AI Forward Initiative 2023
Co-Organizer, SemTab @ ISWC 2023
Co-Organizer, OM Workshop 2023
Senior Program Committee Member, IJCAI 2023
Senior Program Committee Member, ESWC 2023
Program Committee Member, ISWC 2023
Program Committee Member, VLDB 2023 Industry Track
Program Committee Member, VLDB 2023 PhD Workshop
Program Committee Member, WWW 2023 Industry Track
Program Committee Member, NeSy 2023
Participant, NSF Open Knowledge Network Innovation Sprint 2022
Co-Organizer, SemTab @ ISWC 2022
Co-Organizer, OM Workshop 2022
Program Committee Member, AAAI 2022
Program Committee Member, VLDB 2022 Industry Track
Program Committee Member, WWW 2022
Program Committee Member, ISWC 2022
Co-Organizer, SemTab @ ISWC 2021
Co-Organizer, OM Workshop 2021
Senior Program Committee Member, IJCAI 2021
Program Committee Member, ISWC 2021
Program Committee Member, K-CAP 2021
Program Committee Member, CIKM 2021
Reviewer, Semantic Web Journal 2021
Co-Organizer, SemTab @ ISWC 2020
Co-Organizer, OM Workshop 2020
Program Committee Member, IJCAI 2020
Program Committee Member, AAAI 2020 Demonstration Track
Program Committee Member, ISWC 2020
Program Committee Member, ESWC 2020
Reviewer, VLDB Journal, Semantic Web Journal, SIGMOD Record 2020
Program Committee Member (Review Board), PVLDB 2019-2020
Co-Organizer, SemTab @ ISWC 2019
Co-Organizer, OM Workshop 2019
Program Committee Member, ICDE 2019
Program Committee Member, IJCAI 2019
Program Committee Member, ISWC 2019
Program Committee Member, ESWC 2019
Co-Organizer, OM Workshop 2018
Program Committee Member (Review Board), PVLDB 2018-2019
Program Committee Member, SIGMOD 2018
Program Committee Member, ISWC 2018
Program Committee Member, WWW 2018
Program Committee Member, ESWC 2018
Co-Organizer, OM Workshop 2017
Program Committee Member (Review Board), PVLDB 2017-2018
Program Committee Member, SIGMOD 2017
Program Committee Member, ISWC 2017
Program Committee Member, ESWC 2017
Co-Organizer, OM Workshop 2016
Program Committee Member, IJCAI 2016
Program Committee Member, SIGMOD 2016
Reviewer, AMIA 2016
Program Committee Member, EDBT 2016 Industrial Track
Program Committee Member, ESWC 2016
Program Committee Member, WebDB @ SIGMOD 2015 (Outstanding Reviewer Award)
Co-Organizer, OM Workshop 2015
Program Committee Member, ESWC 2015
Program Committee Member, EDBT 2015 Industrial Track
Program Committee Member, DESWeb @ ICDE 2015
Program Committee Member, SIGMOD 2015 Undergraduate Research Track
Program Committee Member, LDOW @ WWW 2015
Program Committee Member, Novel Web Search Interfaces @ CIKM 2015
Co-organizer, NSERC BIN Workshop at IBM Research 2012
Program Committee Member, ICDE 2012
Program Committee Member, LDOW @ WWW 2012
Program Committee Member, WebDB @ SIGMOD 2012
Reviewer, IEEE TKDE, VLDB Journal, TODS 2012
Program Committee Member, Joint Workshop on Semantic Technologies Applied to Biomedical Informatics and Individualized Medicine (SATBI+SWIM) @ ISWC 2012
Program Committee Member, ESWC Linked Open Data Track 2011
Reviewer, Linking Open Data Triplification Challenge (Government Track), 2010
External Reviewer, AAAI Spring Symposium 2010
Program Committee Member, LDOW @ WWW 2009
Reviewer, J. Semantic Web and Information Systems 2009
External Reviewer, SIGMOD 2008
External Reviewer, Information Systems 2008
External Reviewer, VLDB 2007
External Reviewer, IEEE TKDE 2007
Memberships
Member and Chair, Data Management Professional Interest Community (DM PIC), IBM T.J. Watson Research Center (since 2012)
Invited expert, World Wide Web Consortium (W3C) (September 2008 – December 2011)
Member, Linking Open Drug Data Task Force at W3C Semantic Web for Health Care and Life Sciences Interest Group (HCLSIG) (September 2008 – December 2011)
Member, Linking Open Data Community Project at W3C (2008 – 2017)
Member, ACM (since 2005)
Member, IEEE (since 2011)
Select Presentations
IBM Tech 2026 "Disrupt with Bob" Challenge — Winning Solution Presentation
IBM Tech 2026 Opening Ceremony (with IBM executives and 1K+ attendees)
2026 · San Diego, CA
Rethinking Evaluation for AI-Powered Data Systems
Invited Talk, 2nd Trends and Challenges in Industrial Data Systems Research (IDSR) Workshop @ ICDE 2026
2026 · Montreal, Canada
When Text-to-SQL Evaluation Misleads: Rethinking Benchmarking Practices
IEEE ICDE (Lightning Talk)
2026 · Montreal, Canada
Now What? Building Your Research Career After the PhD (Panelist)
ICDE 2026
2026 · Montreal, Canada
Leveraging Simple Semantic Models and Large Language Models for Event Analysis and Enterprise Data Management
Keynote, SemIIM Workshop @ ISWC
2024 · Baltimore, USA
Toward an AI Engine for News Event Analysis and Forecasting
MIT Lincoln Laboratory RAAINS Workshop
2023 · Virtual / Boston, MA
Knowledge-Based News Event Analysis and Forecasting
Keynote, FinNLP Workshop @ EMNLP
2022 · Virtual / Abu Dhabi
Knowledge Graphs for Data Exploration and Data Science
Invited Talk, Data Lab @ Northeastern University
2022 · Boston, MA
Semantic Concept Discovery Over Event Databases
ESWC 2018 (Best In-Use Track Paper Award)
2018 · Heraklion, Greece
Tiresias: Knowledge Engineering and Large-Scale Machine Learning for Interpretable Drug-Drug Interaction Prediction
AMIA Symposium
2016 · Chicago, IL
Automatic Curation of Clinical Trials Data in LinkedCT
ISWC
2015 · Bethlehem, PA
Understanding a Large Corpus of Web Tables Through Matching with Knowledge Bases
OM-2015 Workshop
2015 · Bethlehem, PA
LinkedCT Live: Platform for Online Curation of Clinical Trials Data
ISWC System Demonstration
2015 · Bethlehem, PA
Big Data Curation Through Knowledge Bases
Invited Talk, WACCK Workshop @ SIGMOD
2014 · Snowbird, UT
Discovering Linkage Points over Web Data
VLDB
2013 · Trento, Italy
Next Generation Data Analytics at IBM Research
VLDB Industry Vision
2013 · Trento, Italy
Instance-Based Matching of Large Ontologies Using Locality-Sensitive Hashing
ISWC
2012 · Boston, MA
Data Management Issues on the Semantic Web
Seminar, ICDE
2012 · Washington DC
Data Management Issues of Linked Open Data
Invited Talk, BIN Workshop
2012 · IBM Watson Research Center, NY
Linking Semistructured Data on the Web
WebDB
2011 · Athens, Greece
Publishing Relational Data in the Semantic Web
Invited Tutorial, ESWC
2011 · Heraklion, Greece
Publishing Bibliographic Data on the Semantic Web using BibBase
ISWC Poster
2010 · Shanghai, China
Semantic Link Discovery over Web Data
Invited Talk, UOIT
2010 · Oshawa, ON, Canada
Semantic Link Discovery over Web Data
Invited Talk, Thoora Inc
2010 · Toronto, ON, Canada
Semantic Link Discovery over Web Data
Poster, Yahoo! Key Scientific Challenges Summit
2010 · Sunnyvale, CA
Framework For Evaluating Clustering Algorithms In Duplicate Detection
VLDB
2009 · Lyon, France
Linkage Query Writer
VLDB System Demonstration
2009 · Lyon, France
A Declarative Framework for Semantic Link Discovery over Relational Data
WWW Poster
2009 · Madrid, Spain
Linked Movie Data Base
LDOW @ WWW
2009 · Madrid, Spain
Enabling Tailored Therapeutics with Linked Data
LDOW @ WWW
2009 · Madrid, Spain
Managing Linked Data on the Web: the LinkedMDB showcase
Invited Talk, Data Management PIC Seminar
2008 · IBM Watson Research Center, NY
Accuracy of Approximate String Joins Using Grams
QDB @ VLDB
2007 · Vienna, Austria
Honors and Awards
1st Prize, IBM Tech 2026 "Disrupt with Bob" Challenge (defined vision, formed team, and led development of a semantic query processing platform and UI; selected as top winner by a panel of IBM executives)
IBM Tech 2026 invitee (IBM's premier internal recognition for top technical talent)
IBM Research Accomplishment: GenAI Semantics for Structured Data, 2025
IBM Research Accomplishment: NL2Insights Product and Client Adoption & Impact, 2025
Distinguished Reviewer Award, VLDB 2025
IBM Outstanding Technical Accomplishment: AI Planning Technology for IBM Applications, 2024
IBM Research Accomplishment: Graphical Event Models, 2023
IBM Research Accomplishment: AI Planning Technology for IBM Applications, 2023
Member of Winning Team, FinCausal 2022 Shared Task (Financial Document Causality Detection)
Best System Demonstration Award, ICAPS 2020
Outstanding PC Member (Honorable Mention), ISWC 2020
Distinguished PVLDB Review Board Member Award, 2020
