Luis Gravano

According to our database, Luis Gravano authored at least 105 papers between 1991 and 2023.

Collaborative distances:

• Dijkstra number of three.
• Erdős number of three.

2023

What is a good question? Task-oriented asking with fact-level masking.

Matthew Toles, Yukun Huang, Zhou Yu, Luis Gravano

CoRR, 2023

2021

Quantifying the Effects of COVID-19 on Restaurant Reviews.

Ivy Cao, Zizhou Liu, Giannis Karamanolakis, Daniel Hsu, Luis Gravano

Proceedings of the Ninth International Workshop on Natural Language Processing for Social Media, 2021

2020

Cross-Lingual Text Classification with Minimal Resources by Transferring a Sparse Teacher.

Giannis Karamanolakis, Daniel Hsu, Luis Gravano

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2020, 2020

Detecting Foodborne Illness Complaints in Multiple Languages Using English Annotations Only.

Ziyi Liu, Giannis Karamanolakis, Daniel Hsu, Luis Gravano

Proceedings of the 11th International Workshop on Health Text Mining and Information Analysis, 2020

2019

Leveraging Just a Few Keywords for Fine-Grained Aspect Detection Through Weakly Supervised Co-Training.

Giannis Karamanolakis, Daniel Hsu, Luis Gravano

Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing, 2019

Weakly Supervised Attention Networks for Fine-Grained Opinion Mining and Public Health.

Giannis Karamanolakis, Daniel Hsu, Luis Gravano

Proceedings of the 5th Workshop on Noisy User-generated Text, 2019

2018

Discovering foodborne illness in online restaurant reviews.

Thomas Effland, Anna Lawson, Sharon Balter, Katelynn Devinney, Vasudha Reddy, HaeNa Waechter, Luis Gravano, Daniel Hsu

J. Am. Medical Informatics Assoc., 2018

2017

Fast and Accurate Time-Series Clustering.

John Paparrizos, Luis Gravano

ACM Trans. Database Syst., 2017

Sampling strategies for information extraction over the deep web.

Pablo Barrio, Luis Gravano

Inf. Process. Manag., 2017

2016

k-Shape: Efficient and Accurate Clustering of Time Series.

John Paparrizos, Luis Gravano

SIGMOD Rec., 2016

Predicting the impact of scientific concepts using full-text features.

Kathy McKeown, Hal Daumé III, Snigdha Chaturvedi, John Paparrizos, Kapil Thadani, Pablo Barrio, Or Biran, Suvarna Bothe, Michael Collins, Kenneth R. Fleischmann, Luis Gravano, Rahul Jha, Ben King, Kevin McInerney, Taesun Moon, Arvind Neelakantan, Diarmuid Ó Séaghdha, Dragomir R. Radev, Thomas Clay Templeton, Simone Teufel

J. Assoc. Inf. Sci. Technol., 2016

2015

Learning to Rank Adaptively for Scalable Information Extraction.

Pablo Barrio, Gonçalo Simões, Helena Galhardas, Luis Gravano

Proceedings of the 18th International Conference on Extending Database Technology, 2015

Ranking Deep Web Text Collections for Scalable Information Extraction.

Pablo Barrio, Luis Gravano, Chris Develder

Proceedings of the 24th ACM International Conference on Information and Knowledge Management, 2015

2014

REEL: A Relation Extraction Learning framework.

Pablo Barrio, Gonçalo Simões, Helena Galhardas, Luis Gravano

Proceedings of the IEEE/ACM Joint Conference on Digital Libraries, 2014

2013

When Speed Has a Price: Fast Information Extraction Using Approximate Algorithms.

Gonçalo Simões, Helena Galhardas, Luis Gravano

Proc. VLDB Endow., 2013

Effective Event Identification in Social Media.

Fotis Psallidas, Hila Becker, Mor Naaman, Luis Gravano

IEEE Data Eng. Bull., 2013

2012

Answering General Time-Sensitive Queries.

Wisam Dakka, Luis Gravano, Panagiotis G. Ipeirotis

IEEE Trans. Knowl. Data Eng., 2012

Identifying content for planned events across social media sites.

Hila Becker, Dan Iter, Mor Naaman, Luis Gravano

Proceedings of the Fifth International Conference on Web Search and Web Data Mining, 2012

2011

Hip and trendy: Characterizing emerging trends on Twitter.

Mor Naaman, Hila Becker, Luis Gravano

J. Assoc. Inf. Sci. Technol., 2011

Selecting Quality Twitter Content for Events.

Hila Becker, Mor Naaman, Luis Gravano

Proceedings of the Fifth International Conference on Weblogs and Social Media, 2011

Beyond Trending Topics: Real-World Event Identification on Twitter.

Hila Becker, Mor Naaman, Luis Gravano

Proceedings of the Fifth International Conference on Weblogs and Social Media, 2011

Automatic Identification and Presentation of Twitter Content for Planned Events.

Hila Becker, Feiyang Chen, Dan Iter, Mor Naaman, Luis Gravano

Proceedings of the Fifth International Conference on Weblogs and Social Media, 2011

2010

Learning similarity metrics for event identification in social media.

Hila Becker, Mor Naaman, Luis Gravano

Proceedings of the Third International Conference on Web Search and Web Data Mining, 2010

Popularity-Guided Top-k Extraction of Entity Attributes.

Matthew Solomon, Cong Yu, Luis Gravano

Proceedings of the 13th International Workshop on the Web and Databases 2010, 2010

2009

Event Identification in Social Media.

Hila Becker, Mor Naaman, Luis Gravano

Proceedings of the 12th International Workshop on the Web and Databases, 2009

Querying text databases and the web: beyond traditional keyword search.

Luis Gravano

Proceedings of the First International Workshop on Keyword Search on Structured Data, 2009

Join Optimization of Information Extraction Output: Quality Matters!

Alpa Jain, Panagiotis G. Ipeirotis, AnHai Doan, Luis Gravano

Proceedings of the 25th International Conference on Data Engineering, 2009

2008

Classification-aware hidden-web text database selection.

Panagiotis G. Ipeirotis, Luis Gravano

ACM Trans. Inf. Syst., 2008

Building query optimizers for information extraction: the SQoUT project.

Alpa Jain, Panagiotis G. Ipeirotis, Luis Gravano

SIGMOD Rec., 2008

Optimizing SQL Queries over Text Databases.

Alpa Jain, AnHai Doan, Luis Gravano

Proceedings of the 24th International Conference on Data Engineering, 2008

2007

Modeling and managing changes in text databases.

Panagiotis G. Ipeirotis, Alexandros Ntoulas, Junghoo Cho, Luis Gravano

ACM Trans. Database Syst., 2007

Towards a query optimizer for text-centric tasks.

Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay Jain, Luis Gravano

ACM Trans. Database Syst., 2007

Efficient summarization-aware search for online news articles.

Wisam Dakka, Luis Gravano

Proceedings of the ACM/IEEE Joint Conference on Digital Libraries, 2007

Efficient Keyword Search Across Heterogeneous Relational Databases.

Mayssam Sayyadian, Hieu LeKhac, AnHai Doan, Luis Gravano

Proceedings of the 23rd International Conference on Data Engineering, 2007

SQL Queries Over Unstructured Text Databases.

Alpa Jain, AnHai Doan, Luis Gravano

Proceedings of the 23rd International Conference on Data Engineering, 2007

2006

To search or to crawl?: towards a query optimizer for text-centric tasks.

Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay Jain, Luis Gravano

Proceedings of the ACM SIGMOD International Conference on Management of Data, 2006

2005

XML & Data Streams.

Nicolas Bruno, Luis Gravano, Nick Koudas, Divesh Srivastava

Proceedings of the Stream Data Management, 2005

Modeling and Managing Content Changes in Text Databases.

Panagiotis G. Ipeirotis, Alexandros Ntoulas, Junghoo Cho, Luis Gravano

Proceedings of the 21st International Conference on Data Engineering, 2005

2004

Learning to find answers to questions on the Web.

Eugene Agichtein, Steve Lawrence, Luis Gravano

ACM Trans. Internet Techn., 2004

Evaluating top-<i>k</i> queries over web-accessible databases.

Amélie Marian, Nicolas Bruno, Luis Gravano

ACM Trans. Database Syst., 2004

Optimizing Top-k Selection Queries over Multimedia Repositories.

Surajit Chaudhuri, Luis Gravano, Amélie Marian

IEEE Trans. Knowl. Data Eng., 2004

When one Sample is not Enough: Improving Text Database Selection Using Shrinkage.

Panagiotis G. Ipeirotis, Luis Gravano

Proceedings of the ACM SIGMOD International Conference on Management of Data, 2004

Selectivity Estimation for String Predicates: Overcoming the Underestimation Problem.

Surajit Chaudhuri, Venkatesh Ganti, Luis Gravano

Proceedings of the 20th International Conference on Data Engineering, 2004

2003

QProber: A system for automatic classification of hidden-Web databases.

Luis Gravano, Panagiotis G. Ipeirotis, Mehran Sahami

ACM Trans. Inf. Syst., 2003

Text joins in an RDBMS for web data integration.

Luis Gravano, Panagiotis G. Ipeirotis, Nick Koudas, Divesh Srivastava

Proceedings of the Twelfth International World Wide Web Conference, 2003

Modeling Query-Based Access to Text Databases.

Eugene Agichtein, Panagiotis G. Ipeirotis, Luis Gravano

Proceedings of the International Workshop on Web and Databases, 2003

Efficient IR-Style Keyword Search over Relational Databases.

Vagelis Hristidis, Luis Gravano, Yannis Papakonstantinou

Proceedings of 29th International Conference on Very Large Data Bases, 2003

QXtract: A Building Block for Efficient Information Extraction from Plain-Text Databases.

Eugene Agichtein, Luis Gravano

Proceedings of the 2003 ACM SIGMOD International Conference on Management of Data, 2003

Text Joins for Data Cleansing and Integration in an RDBMS.

Luis Gravano, Panagiotis G. Ipeirotis, Nick Koudas, Divesh Srivastava

Proceedings of the 19th International Conference on Data Engineering, 2003

Navigation- vs. Index-Based XML Multi-Query Processing.

Nicolas Bruno, Luis Gravano, Nick Koudas, Divesh Srivastava

Proceedings of the 19th International Conference on Data Engineering, 2003

Querying Text Databases for Efficient Information Extraction.

Eugene Agichtein, Luis Gravano

Proceedings of the 19th International Conference on Data Engineering, 2003

Categorizing web queries according to geographical locality.

Luis Gravano, Vasileios Hatzivassiloglou, Richard Lichtenstein

Proceedings of the 2003 ACM CIKM International Conference on Information and Knowledge Management, 2003

2002

Data Integration and Access - The Digital Government Research Center's Energy Data Collection (EDC) Project.

José Luis Ambite, Yigal Arens, Walter Bourne, Steven Feiner, Luis Gravano, Vasileios Hatzivassiloglou, Eduard H. Hovy, Judith Klavans, Andrew Philpot, Usha Ramachandran, Kenneth A. Ross, Jay Sandhaus, Deniz Sariöz, Rolfe R. Schmidt, Cyrus Shahabi, Anurag Singla, Surabhan Temiyabutr, Brian Whitman, Kazi A. Zaman

Proceedings of the Advances in Digital Government - Technology, Human Factors, and Policy, 2002

Top-k selection queries over relational databases: Mapping strategies and performance evaluation.

Nicolas Bruno, Surajit Chaudhuri, Luis Gravano

ACM Trans. Database Syst., 2002

Query- vs. Crawling-based Classification of Searchable Web Databases.

Luis Gravano, Panagiotis G. Ipeirotis, Mehran Sahami

IEEE Data Eng. Bull., 2002

Distributed Search over the Hidden Web: Hierarchical Database Sampling and Selection.

Panagiotis G. Ipeirotis, Luis Gravano

Proceedings of 28th International Conference on Very Large Data Bases, 2002

Extending SDARTS: extracting metadata from web databases and interfacing with the open archives initiative.

Panagiotis G. Ipeirotis, Tom Barry, Luis Gravano

Proceedings of the ACM/IEEE Joint Conference on Digital Libraries, 2002

Evaluating Top-k Queries over Web-Accessible Databases.

Nicolas Bruno, Luis Gravano, Amélie Marian

Proceedings of the 18th International Conference on Data Engineering, San Jose, CA, USA, February 26, 2002

Web Mining Meets Web Search.

Luis Gravano

Proceedings of the 2002 ACM SIGMOD Workshop on Research Issues in Data Mining and Knowledge Discovery, 2002

2001

Reminiscences on Influential Papers.

Kenneth A. Ross, Stefano Ceri, Luis Gravano, Per-Åke Larson, Leonid Libkin, Tova Milo

SIGMOD Rec., 2001

Using q-grams in a DBMS for Approximate String Processing.

Luis Gravano, Panagiotis G. Ipeirotis, H. V. Jagadish, Nick Koudas, S. Muthukrishnan, Lauri Pietarinen, Divesh Srivastava

IEEE Data Eng. Bull., 2001

Letter from the Special Issue Editor.

Luis Gravano

IEEE Data Eng. Bull., 2001

Simplifying Data Access: The Energy Data Collection Project.

José Luis Ambite, Yigal Arens, Eduard H. Hovy, Andrew Philpot, Luis Gravano, Vasileios Hatzivassiloglou, Judith Klavans

Computer, 2001

Learning search engine specific query transformations for question answering.

Eugene Agichtein, Steve Lawrence, Luis Gravano

Proceedings of the Tenth International World Wide Web Conference, 2001

Approximate String Joins in a Database (Almost) for Free.

Luis Gravano, Panagiotis G. Ipeirotis, H. V. Jagadish, Nick Koudas, S. Muthukrishnan, Divesh Srivastava

Proceedings of the VLDB 2001, 2001

Probe, Count, and Classify: Categorizing Hidden Web Databases.

Panagiotis G. Ipeirotis, Luis Gravano, Mehran Sahami

Proceedings of the 2001 ACM SIGMOD international conference on Management of data, 2001

STHoles: A Multidimensional Workload-Aware Histogram.

Nicolas Bruno, Surajit Chaudhuri, Luis Gravano

Proceedings of the 2001 ACM SIGMOD international conference on Management of data, 2001

Snowball: A Prototype System for Extracting Relations from Large Text Collections.

Eugene Agichtein, Luis Gravano, Jeff Pavel, Viktoriya Sokolova, Aleksandr Voskoboynik

Proceedings of the 2001 ACM SIGMOD international conference on Management of data, 2001

PERSIVAL, a system for personalized search and summarization over multimedia healthcare information.

Kathleen R. McKeown, Shih-Fu Chang, James J. Cimino, Steven Feiner, Carol Friedman, Luis Gravano, Vasileios Hatzivassiloglou, Steven Johnson, Desmond A. Jordan, Judith Klavans, André Kushniruk, Vimla L. Patel, Simone Teufel

Proceedings of the ACM/IEEE Joint Conference on Digital Libraries, 2001

PERSIVAL demo: categorizing hidden-web resources.

Panagiotis G. Ipeirotis, Luis Gravano, Mehran Sahami

Proceedings of the ACM/IEEE Joint Conference on Digital Libraries, 2001

SDLIP + STARTS = SDARTS a protocol and toolkit for metasearching.

Noah Green, Panagiotis G. Ipeirotis, Luis Gravano

Proceedings of the ACM/IEEE Joint Conference on Digital Libraries, 2001

2000

Automatic Classification of Text Databases Through Query Probing.

Panagiotis G. Ipeirotis, Luis Gravano, Mehran Sahami

Proceedings of the Third International Workshop on the Web and Databases, 2000

Computing Geographical Scopes of Web Resources.

Junyan Ding, Luis Gravano, Narayanan Shivakumar

Proceedings of the VLDB 2000, 2000

An investigation of linguistic features and clustering algorithms for topical document clustering.

Vasileios Hatzivassiloglou, Luis Gravano, Ankineedu Maganti

Proceedings of the SIGIR 2000: Proceedings of the 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2000

Combining Strategies for Extracting Relations from Text Collections.

Eugene Agichtein, Eleazar Eskin, Luis Gravano

Proceedings of the 2000 ACM SIGMOD Workshop on Research Issues in Data Mining and Knowledge Discovery, 2000

<i>Snowball</i>: extracting relations from large plain-text collections.

Eugene Agichtein, Luis Gravano

Proceedings of the Fifth ACM Conference on Digital Libraries, 2000

Simplifying data access: the energy data collection (EDC) project.

José Luis Ambite, Yigal Arens, Luis Gravano, Vasileios Hatzivassiloglou, Eduard H. Hovy, Judith L. Klavans, Andrew Philpot, Usha Ramachandran, Jay Sandhaus, Anurag Singla, Brian Whitman

Proceedings of the 2000 National Conference on Digital Government Research, 2000

Characterizing Web Resources for Improved Search.

Luis Gravano

Proceedings of the First DELOS Network of Excellence Workshop on Information Seeking, 2000

1999

GlOSS: Text-Source Discovery over the Internet.

Luis Gravano, Hector Garcia-Molina, Anthony Tomasic

ACM Trans. Database Syst., 1999

Exploiting Geographical Location Information of Web Pages.

Orkut Buyukkokten, Junghoo Cho, Hector Garcia-Molina, Luis Gravano, Narayanan Shivakumar

Proceedings of the ACM SIGMOD Workshop on The Web and Databases, 1999

Evaluating Top-<i>k</i> Selection Queries.

Surajit Chaudhuri, Luis Gravano

Proceedings of the VLDB'99, 1999

1998

Database Research at Columbia University.

Shih-Fu Chang, Luis Gravano, Gail E. Kaiser, Kenneth A. Ross, Salvatore J. Stolfo

SIGMOD Rec., 1998

Mediating and Metasearching on the Internet.

Luis Gravano, Yannis Papakonstantinou

IEEE Data Eng. Bull., 1998

The Stanford InfoBus and Its Service Layers: Augmenting the Internet with High-Level Information Management Protocols.

Martin Röscheisen, Michelle Q. Wang Baldonado, Kevin Chen-Chuan Chang, Luis Gravano, Steven P. Ketchpel, Andreas Paepcke

Proceedings of the Digital Libraries in Computer Science: The MeDoc Approach, 1998

1997

Querying multiple document collections across the internet.

Luis Gravano

PhD thesis, 1997

Data Structures for Efficient Broker Implementation.

Anthony Tomasic, Luis Gravano, Calvin Lue, Peter M. Schwarz, Laura M. Haas

ACM Trans. Inf. Syst., 1997

The Stanford Digital Library Metadata Architecture.

Michelle Q. Wang Baldonado, Kevin Chen-Chuan Chang, Luis Gravano, Andreas Paepcke

Int. J. Digit. Libr., 1997

Merging Ranks from Heterogeneous Internet Sources.

Luis Gravano, Hector Garcia-Molina

Proceedings of the VLDB'97, 1997

STARTS: Stanford Proposal for Internet Meta-Searching (Experience Paper).

Luis Gravano, Kevin Chen-Chuan Chang, Hector Garcia-Molina, Andreas Paepcke

Proceedings of the SIGMOD 1997, 1997

Metadata for Digital Libraries: Architecture and Design Rationale.

Michelle Q. Wang Baldonado, Kevin Chen-Chuan Chang, Luis Gravano, Andreas Paepcke

Proceedings of the 2nd ACM International Conference on Digital Libraries, 1997

1996

Optimizing Queries over Multimedia Repositories.

Surajit Chaudhuri, Luis Gravano

IEEE Data Eng. Bull., 1996

dSCAM: Finding Document Copies Across Multiple Databases.

Hector Garcia-Molina, Luis Gravano, Narayanan Shivakumar

Proceedings of the Fourth International Conference on Parallel and Distributed Information Systems, 1996

1995

Generalizing GlOSS to Vector-Space Databases and Broker Hierarchies.

Luis Gravano, Hector Garcia-Molina

Proceedings of the VLDB'95, 1995

1994

Fully Adaptive Minimal Deadlock-Free Packet Routing in Hypercubes, Meshes, and other Networks: Algorithms and Simulations.

Gustavo D. Pifarré, Luis Gravano, Sergio A. Felperin, Jorge L. C. Sanz

IEEE Trans. Parallel Distributed Syst., 1994

Adaptive Deadlock- and Livelock-Free Routing in the Hypercube Network.

Gustavo D. Pifarré, Luis Gravano, Gustavo Denicolay, Jorge L. C. Sanz

IEEE Trans. Parallel Distributed Syst., 1994

Adaptive Deadlock- and Livelock-Free Routing with All Minimal Paths in Torus Networks.

Luis Gravano, Gustavo D. Pifarré, Pablo E. Berman, Jorge L. C. Sanz

IEEE Trans. Parallel Distributed Syst., 1994

Storage-Efficient, Deadlock-Free Packet Routing Algorithms for Torus Networks.

Robert Cypher, Luis Gravano

IEEE Trans. Computers, 1994

Requirements for Deadlock-Free, Adaptive Packet Routing.

Robert Cypher, Luis Gravano

SIAM J. Comput., 1994

The Effectiveness of GlOSS for the Text Database Discovery Problem.

Luis Gravano, Hector Garcia-Molina, Anthony Tomasic

Proceedings of the 1994 ACM SIGMOD International Conference on Management of Data, 1994

Precision and Recall of GlOSS Estimators for Database Discovery.

Luis Gravano, Hector Garcia-Molina, Anthony Tomasic

Proceedings of the Third International Conference on Parallel and Distributed Information Systems (PDIS 94), 1994

1992

Adaptive Deadlock-Free Worrnhole Routing in Hypercubes.

Luis Gravano, Gustavo D. Pifarré, Gustavo Denicolay, Jorge L. C. Sanz

Proceedings of the 6th International Parallel Processing Symposium, 1992

Adaptive, Deadlock-Free Packet Routing in Torus Networks with Minimal Storage.

Robert Cypher, Luis Gravano

Proceedings of the 1992 International Conference on Parallel Processing, 1992

1991

Routing techniques for massively parallel communication.

Sergio A. Felperin, Luis Gravano, Gustavo D. Pifarré, Jorge L. C. Sanz

Proc. IEEE, 1991

Fully-Adaptive Minimal Deadlock-Free Packet Routing in Hypercubes, Meshes, and Other Networks.

Gustavo D. Pifarré, Luis Gravano, Sergio A. Felperin, Jorge L. C. Sanz

Proceedings of the 3rd Annual ACM Symposium on Parallel Algorithms and Architectures, 1991

Fully-adaptive routing: packet switching performance and wormhole algorithms.

Sergio A. Felperin, Luis Gravano, Gustavo D. Pifarré, Jorge L. C. Sanz

Proceedings of the Proceedings Supercomputing '91, 1991