Publications

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. Robust Training of Temporal GNNs using Nearest Neighbour based Hard Negatives (to appear). Proc. of the ACM India Joint International Conference on Data Sciences and Management of Data (CoDS-COMAD) 2024 (11th ACM iKDD CoDS and 29th COMAD), 2024.

. Navigating the Structured What-If Spaces: Counterfactual Generation via Structured Diffusion. Proc. of the 2nd IEEE Conference on Secure and Trustworthy Machine Learning (IEEE SaTML), 2024.

. Generative Modeling of Labeled Graphs under Data Scarcity (to appear). Proc. of the 2nd Learning on Graphs Conference (LoG), 2024.

. Data-Dependent Generalization Bounds for Neural Networks with ReLU. Transactions on Machine Learning Research (TMLR), 2024.

. Evaluating Cross-modal Generative Models using Retrieval Task (to appear, short-paper). Proc. of the 46th Intl. ACM SIGIR Conf. on Research and Development in Information Retrieval (SIGIR), 2023.

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. GRAFENNE: Continual learning on Graphs with Heterogeneous and Dynamic Feature Sets (to appear). Proc. of the 40th International Conference on Machine Learning (ICML), 2023.

. Counterfactual Sentence Generation with Plug-and-Play Perturbation. Proc. of the 1st IEEE Conference on Secure and Trustworthy Machine Learning (IEEE SaTML), 2023.

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. DetAIL : A Tool to Automatically Detect and Analyze Drift In Language. Proc. of the 35th Conference on Innovative Applications of Artificial Intelligence (AAAI/IAAI), 2023.

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. Teaching Old DB Neu(ral) Tricks: Learning Embeddings on Multi-tabular Databases. Proc. of the ACM India Joint International Conference on Data Sciences and Management of Data (CoDS-COMAD) 2022 (10th ACM iKDD CoDS and 28th COMAD), 2023.

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. Modeling Spatial Trajectories using Coarse-Grained Smartphone Logs . IEEE Transactions on Big Data (IEEE TBD), 2023.

. LCM: A Surprisingly Effective Framework for Supervised Cross-modal Retrieval. Proc. of the ACM India Joint International Conference on Data Sciences and Management of Data (CoDS-COMAD) 2022 (10th ACM iKDD CoDS and 28th COMAD), 2023.

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. IITDLI : Legal Case Retrieval Based on Lexical Models. Proc. of the Competition on Legal Information Extraction/Entailment (COLIEE) Workshop, 2023.

. Modeling Continuous Time Sequences with Intermittent Observations using Marked Temporal Point Processes (to appear). ACM Transactions on Intelligent Systems and Technology (ACM TIST), 2022.

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. ProActive: Self-Attentive Temporal Point Process Flows for Activity Sequences. Proc. of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), 2022.

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. New wine in an old bottle: Data-aware hash functions for Bloom filters. PVLDB, 2022.

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. Doing More with Less: Overcoming Data Scarcity for POI Recommendation via Cross-Region Transfer. ACM Transactions on Intelligent Systems and Technology (ACM TIST), 2022.

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. Answering Regular Path Queries through Exemplars. PVLDB, 2022.

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. TIGGER: Scalable Generative Modelling for Temporal Interaction Graphs. Proc. of the 36th AAAI Conference on Artificial Intelligence (AAAI), 2022.

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. Learning Temporal Point Processes for Efficient Retrieval of Continuous Time Event Sequences. Proc. of the 36th AAAI Conference on Artificial Intelligence (AAAI), 2022.

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. VizAI : Selecting Accurate Visualizations of Numerical Data. Proc. of the ACM India Joint International Conference on Data Sciences and Management of Data (CoDS-COMAD) (9th ACM iKDD CoDS and 27th COMAD), 2022.

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. Modeling Spatial Trajectories using Coarse-Grained Smartphone Logs (to appear). IEEE Transactions on Big Data (IEEE TBD), 2022.

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. A Survey on Temporal Graph Representation Learning and Generative Modeling. CoRR, 2022.

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. Robust Text Generation using Sequence-to-Sequence Pre-Training. Proc. of the CtrlGen: Controllable Generative Modelling in Language and Vision Workshop at Conference on Neural Information Processing Systems (NeuRIPS), 2021.

. Regex Queries over Incomplete Knowledge Bases. Proc. of the 3rd Conference on Automated Knowledge Base Construction (AKBC), 2021.

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. Region-Invariant Normalizing Flows for Mobility Transfer (short-paper). Proc. of the 30th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2021.

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. Computing and Maintaining Provenance of Query Result Probabilities in Uncertain Knowledge Graphs. Proc. of the 30th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2021.

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. BERT Meets Relational DB: Contextual Representations of Relational Databases. CoRR, 2021.

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. Fast One-class Classification using Class Boundary-preserving Random Projections. Proc. of the 27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), 2021.

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. Tracking entities in technical procedures -- a new dataset and baselines. CoRR, 2021.

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. Learning Temporal Point Processes with Intermittent Observations. Proc. of the 24th International Conference on Artificial Intelligence and Statistics (AISTATS), 2021.

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. Analyzing Topic Transitions in Text-based Social Cascades using Dual-Network Hawkes Process. Proc. of the 25th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), 2021.

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. Modeling Implicit Communities from Geo-tagged Event Traces using Spatio-Temporal Point Processes. Proc. of the 21st International Conference on Web Information Systems Engineering (WISE 2020), 2020.

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. How and Why is An Answer (Still) Correct? Maintaining Provenance in Dynamic Knowledge Graphs. Proc. of the 29th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2020.

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. IterefinE: Iterative KG Refinement Embeddings using Symbolic Knowledge. Proc. of the 2nd Conference on Automated Knowledge Base Construction (AKBC), 2020.

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. Knowledge Base Inference for Regular Expression Queries. CoRR, 2020.

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. Aspect-based Academic Search using Domain-specific KB.. Proc. of the 42nd European Conference on Information Retrieval (ECIR), 2020.

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. Ranking Marginal Influencers in a Target-labeled Network. Proc. of the ACM India Joint International Conference on Data Sciences and Management of Data (CoDS-COMAD) 2020 (7th ACM iKDD CoDS and 25th COMAD), 2020.

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. Adaptive Learned Bloom Filters under Incremental Workloads (Best Paper). Proc. of the ACM India Joint International Conference on Data Sciences and Management of Data (CoDS-COMAD) 2020 (7th ACM iKDD CoDS and 25th COMAD), 2020.

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. Topics are not Marks: Modeling Text-based Cascades using Multi-network Hawkes Process. Workshop on Learning with Temporal Point Processes with 33rd Conference on Neural Information Processing Systems, 2019.

. On Embeddings in Relational Databases. Workshop on Knowledge Representation for Machine Learning (KR2ML) with 33rd Conference on Neural Information Processing Systems, 2019.

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. Time-series as Background Data for Relating Medical Diagnoses Terms. Proc. of the 10th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics (ACM BCB), 2019.

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. Efficiently Answering Regular Simple Path Queries on Large Labeled Networks. Proc. of the ACM SIGMOD Intl. Conf. on Management of Data (SIGMOD), 2019.

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. Location-Specific Influence Quantification in Location based Social Networks. ACM Transactions on Intelligent Systems and Technology (ACM TIST), 2019.

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. ARROW: Approximating Reachability using Random-walks Over Web-scale Graphs. Proc. of the 35th IEEE Intl. Conference on Data Engineering (ICDE), 2019.

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. Using Word Embeddings for Information Retrieval: How Collection and Term Normalization Choices Affect Performance (short paper). Proc. of the 27th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2018.

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. Sampling and Reconstruction Using Bloom Filters. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2018.

. Discovering Topical Interactions in Text-based Cascades using Hidden Markov Hawkes Processes. Proc. of the 13th IEEE Intl. Conference on Data Mining (ICDM), 2018.

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. DataVizard: Recommending Visual Presentations for Structured Data. Proc. of the 21st Intl. Workshop on Web and Databases (WebDB), 2018.

. A Change Tracking Framework for Financial Documents. Proc. of the 15th IEEE International Conference on Services Computing (IEEE SCC), 2018.

. Tracking the Impact of Fact Deletions on Knowledge Graph Queries using Provenance Polynomials. Proc. of the 26th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2017.

. Sampling and Reconstruction Using Bloom Filters (poster). Proc. of the 33rd IEEE Intl. Conference on Data Engineering (ICDE), 2017.

. Sampling and Reconstruction Using Bloom Filters. 2017.

. STREAK: An Efficient Engine for Processing Top-k SPARQL Queries with Spatial Filters. 2017.

. LoCaTe: Influence Quantification for Location Promotion in Location-based Social Networks. Proc. of the 26th Intl. Joint Conf. on Artificial Intelligence (IJCAI), 2017.

. DataVizard: Recommending Visual Presentations for Structured Data. 2017.

. Quark-X: An Efficient Top-K Processing Framework for RDF Quad Stores. Proc. of the 25th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2016.

. Instant Espresso: Interactive Analysis of Relationships in Knowledge Graphs (demonstration). Proc. of the 25th Intl. Conf. on World Wide Web (WWW), 2016.

. ESPRESSO: Explaining Relationships between Entity Sets. Proc. of the 25th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2016.

. Tracking the Conductance of Rapidly Evolving Topic-Subgraphs. PVLDB, 2015.

. Inferring and Exploiting Categories for Next Location Prediction (poster). Proc. of the 24th Intl. Conf. on World Wide Web (WWW), 2015.

. Towards Generating Text Summaries for Entity Chains. Proc. of the 36th European Conference on Information Retrieval (ECIR), 2014.

. Towards Generating Text Summaries for Entity Chains. Proc. of the 36th European Conference on Information Retrieval (ECIR), 2014.

. RQ-RDF-3X: Going Beyond Triplestores. Proc. of the 5th Intl. Workshop on Data Engineering meet the Semantic Web (DESWeb), 2014.

. Phrase Query Optimization on Inverted Indexes (short paper). Proc. of the 23rd ACM Intl. Conference on Information and Knowledge Management (CIKM), 2014.

. Sparqling Kleene: Fast Regex Paths in RDF-3x. Proc. of the First Intl. Workshop on Graph Data Management and Experience (GRADES) – colocated with SIGMOD, 2013.

. Label Constrained Shortest Path Estimation (poster). Proc. of the 22nd ACM Intl. Conference on Information and Knowledge Management (CIKM), 2013.

. Generating Text Summaries of Graph Snippets. Proc. of the 19th Intl. Conf. on Management of Data (COMAD), 2013.

. FERRARI : Flexible and Efficient Reachability Range Assignment for Graph Indexing. Proc. of the 29th IEEE Intl. Conference on Data Engineering (ICDE), 2013.

. Efficient Computation of Relationship-Centrality in Large Entity-Relationship Graphs (poster). Proc. of the 12th Intl. Semantic Web Conference (ISWC), 2013.

. Computing n-gram Statistics in MapReduce. Proc. of the 16th Intl. Conference on Extending Database Technology (EDBT), 2013.

. D-Hive: Data Bees Pollinating RDF, Text, and Time. Proc. of the 6th Biennial Conf. on Innovative Data Systems Research (CIDR)(OIV track), 2013.

. Index Maintenance for Time-travel Text Search. Proc. of the 35th Intl. ACM SIGIR Conf. on Research and Development in Information Retrieval (SIGIR), 2012.

. High-Performance Reachability Query Processing under Index Size Restrictions. 2012.

. Computing n-gram Statistics in MapReduce. 2012.

. Temporal Index Sharding for Space-Time Efficiency in Archive Search. Proc. of the 34th Intl. ACM SIGIR Conf. on Research and Development in Information Retrieval (SIGIR), 2011.

. Temporal Index Sharding for Space-Time Efficiency in Archive Search. 2011.

. Temporal Knowledge for Timely Intelligence. Proc. of the BIRTE, Lecture Notes in Information Processing (LNAI), 2010.

. NEAT: News Exploration Along Time. Proc. of the 32nd European Conference on Information Retrieval (ECIR), 2010.

. Interesting-Phrase Mining for Ad-hoc Text Analytics. PVLDB, 2010.

. InZeit: Efficiently Identifying Insightful Time-points. PVLDB, 2010.

. Fast and Accurate Estimation of Shortest Paths in Large Graphs. Proc. of the 19th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2010.

. Efficient Temporal Keyword Queries over Versioned Text. Proc. of the 19th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2010.

. Durable Top-k Search in Document Archives. Proc. of the ACM SIGMOD Intl. Conf. on Management of Data (SIGMOD), 2010.

. Bonsai: Growing Interesting Small Trees. Proc. of the 10th IEEE Intl. Conference on Data Mining (ICDM), 2010.

. Antourage: Mining Distance-Constrained Trips from Flickr. Proc. of the 19th Intl. Conf. on World Wide Web (WWW), 2010.

. A Language Modeling Approach for Temporal Information Needs. Proc. of the 32nd European Conference on Information Retrieval (ECIR), 2010.

. Efficient Temporal Keyword Queries over Versioned Text. 2010.

. Bonsai: Growing Interesting Small Trees. 2010.

. A Language Modeling Approach for Temporal Information Needs. 2010.

. Towards Time-aware Link Prediction in Evolving Social Networks. Proc. of the 3rd ACM Workshop on Social Network Mining and Analysis (SNA-KDD), 2009.

. Time will Tell: Leveraging Temporal Expressions in IR. Proc. of the ACM Intl. Conference on Web Search and Data Mining (WSDM) - Late-breaking Results Track, 2009.

. EverLast: A Distributed Architecture for Preserving the Web. Proc. of the ACM/IEEE Joint Conference on Digital Libraries (JCDL), 2009.

. Bridging the Terminology Gap in Web Archive Search. Proc. of the 12th Intl. Workshop on Web and Databases (WebDB), 2009.

. Scalable Phrase Mining for Ad-hoc Text Analytics. 2009.

. Tunable Word-level Index Compression for Versioned Corpora. Proc. of the Workshop on Efficiency Issues in Information Retrieval (EIIR) - colocated with ECIR, 2008.

. Flood Little, Cache More: Effective Result-reuse in P2P IR Systems. Proc. of the 13th Intl. Conference on Database Systems for Advanced Applications (DASFAA), 2008.

. FluxCapacitor: Efficient Time-travel Text Search. Proc. of the 33rd Intl. Conf. on Very Large Databases (VLDB), 2007.

. EntityAuthority: Semantically Enriched Graph-based Authority Propagation. Proc. of the 10th Intl. Workshop on Web and Databases (WebDB), 2007.

. Efficient Time-travel on Versioned Text Collections. Proc. of the 12th GI-Fachtagung für Datenbanksysteme in Business, Technologie und Web (BTW), 2007.

. Comparing Apples and Oranges: Normalized PageRank for Evolving Graphs (poster). Proc. of the 16th Intl. Conf. on World Wide Web (WWW), 2007.

. A Time Machine for Text Search. Proc. of the 30th Intl. ACM SIGIR Conf. on Research and Development in Information Retrieval (SIGIR), 2007.

. A Pocket Guide to Web History. Proc. of the 14th String Processing and Information Retrieval Symposium (SPIRE), 2007.

. A Time Machine for Text Search. 2007.

. Rank Synopses for Efficient Time Travel on the Web Graph. Proc. of the 15th ACM Intl. Conference on Information and Knowledge Management (CIKM), 2006.

. BuzzRank ... and the Trend is your Friend. Proc. of the 15th Intl. Conf. on World Wide Web (WWW), 2006.

. Search-optimized Persistent Suffix-tree Storage for Biological Applications. Proc. of the 12th IEEE International Conference on High Performance Computing (HiPC), 2005.

. Engineering a Fast Online Persistent Suffix Tree Construction. Proc. of the 20th IEEE Intl. Conference on Data Engineering (ICDE), 2004.

. BODHI: A Database Habitat for Bio-diversity Information. Proc. of the ACM SIGMOD Intl. Conf. on Management of Data (SIGMOD), 2004.

. Search Optimized Persistent Suffix-tree Storage. 2004.

. A Product Line Architecture for Word-of-Mouth Social Software. 2004.

. The Building of BODHI, a Biodiversity Database System. Information Systems, 2003.

. The Building of BODHI, a Bio-diversity Database System. 2001.

. Design and Implementation of a Biodiversity Information Management System. Proc. of the 10th Intl. Conf. on Management of Data (COMAD), 2000.