2019

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Joint Optimization of Cascade Ranking Models
Luke Gallagher | Ruey-Cheng Chen | Roi Blanco | J. Shane Culpepper
Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining, WSDM 2019, Melbourne, VIC, Australia, February 11-15, 2019

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A Rank-biased Neural Network Model for Click Modeling
Haitao Yu | Adam Jatowt | Roi Blanco | Joemon M. Jose | Ke Zhou
Proceedings of the 2019 Conference on Human Information Interaction and Retrieval, CHIIR 2019, Glasgow, Scotland, UK, March 10-14, 2019

2018

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Characterizing and Predicting Users' Behavior on Local Search Queries
Fidel Cacheda | Roi Blanco | Nicola Barbieri
2018 Volume 12 Issue 2

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Revisiting the cluster-based paradigm for implicit search result diversification
Haitao Yu | Adam Jatowt | Roi Blanco | Hideo Joho | Joemon M. Jose | Long Chen | Fajie Yuan
2018 Volume 54 Issue 4

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Characterizing, predicting, and handling web search queries that match very few or no results
Erdem Sarigil | Ismail Sengor Altingovde | Roi Blanco | Berkant Barla Cambazoglu | Rifat Ozcan | Özgür Ulusoy
2018 Volume 69 Issue 2

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Query Driven Algorithm Selection in Early Stage Retrieval
Joel M. Mackenzie | J. Shane Culpepper | Roi Blanco | Matt Crane | Charles L. A. Clarke | Jimmy Lin
Proceedings of the Eleventh ACM International Conference on Web Search and Data Mining, WSDM 2018, Marina Del Rey, CA, USA, February 5-9, 2018

2017

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Re-Finding Behaviour in Vertical Domains
Seyedeh Sargol Sadeghi | Roi Blanco | Peter Mika | Mark Sanderson | Falk Scholer | David Vallet
2017 Volume 35 Issue 3

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Decoding multi-click search behavior based on marginal utility
Haitao Yu | Adam Jatowt | Roi Blanco | Hideo Joho | Joemon M. Jose
2017 Volume 20 Issue 1

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An in-depth study on diversity evaluation: The importance of intrinsic diversity
Haitao Yu | Adam Jatowt | Roi Blanco | Hideo Joho | Joemon M. Jose
2017 Volume 53 Issue 4

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Test Collection for Evaluating Actionable Knowledge Graphs
Roi Blanco | Hideo Joho | Adam Jatowt | Haitao Yu
Proceedings of the First Workshop on Knowledge Graphs and Semantics for Text Retrieval and Analysis (KG4IR 2017) co-located with the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2017), Shinjuku, Tokyo, Japan, August 11, 2017

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Lightweight Multilingual Entity Extraction and Linking
Aasish Pappu | Roi Blanco | Yashar Mehdad | Amanda Stent | Kapil Thadani
Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017

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A Concise Integer Linear Programming Formulation for Implicit Search Result Diversification
Haitao Yu | Adam Jatowt | Roi Blanco | Hideo Joho | Joemon M. Jose | Long Chen | Fajie Yuan
Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017

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Click Through Rate Prediction for Local Search Results
Fidel Cacheda | Nicola Barbieri | Roi Blanco
Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017

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Overview of NTCIR-13 Actionable Knowledge Graph (AKG) Task
Roi Blanco | Hideo Joho | Adam Jatowt | Haitao Yu | Shuhei Yamamoto
The 13th NTCIR Conference, Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, December 5-8, 2017

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Modelling Information Needs in Collaborative Search Conversations
Sosuke Shiga | Hideo Joho | Roi Blanco | Johanne R. Trippas | Mark Sanderson
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

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Efficient Cost-Aware Cascade Ranking in Multi-Stage Retrieval
Ruey-Cheng Chen | Luke Gallagher | Roi Blanco | J. Shane Culpepper
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2016

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Term-by-Term Query Auto-Completion for Mobile Search
Saúl Vargas | Roi Blanco | Peter Mika
Proceedings of the Ninth ACM International Conference on Web Search and Data Mining, San Francisco, CA, USA, February 22-25, 2016

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Overview of NTCIR-12 Temporal Information Access (Temporalia-2) Task
Hideo Joho | Adam Jatowt | Roi Blanco | Haitao Yu | Shuhei Yamamoto
Proceedings of the 12th NTCIR Conference on Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, June 7-10, 2016

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An In-Depth Study of Implicit Search Result Diversification
Haitao Yu | Adam Jatowt | Roi Blanco | Hideo Joho | Joemon M. Jose | Long Chen | Fajie Yuan
Information Retrieval Technology - 12th Asia Information Retrieval Societies Conference, AIRS 2016, Beijing, China, November 30 - December 2, 2016, Proceedings

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Building Test Collections for Evaluating Temporal IR
Hideo Joho | Adam Jatowt | Roi Blanco | Haitao Yu | Shuhei Yamamoto
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

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Memory-based Recommendations of Entities for Web Search Users
Ignacio Fernández-Tobías | Roi Blanco
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

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Exploiting Green Energy to Reduce the Operational Costs of Multi-Center Web Search Engines
Roi Blanco | Matteo Catena | Nicola Tonellotto
Proceedings of the 25th International Conference on World Wide Web, WWW 2016, Montreal, Canada, April 11 - 15, 2016

2015

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Temporal Information Retrieval
Nattiya Kanhabua | Roi Blanco | Kjetil Nørvåg
2015 Volume 9 Issue 2

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Ranking of daily deals with concept expansion
Roi Blanco | Michael Matthews | Peter Mika
2015 Volume 51 Issue 4

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IntoNews: Online news retrieval using closed captions
Roi Blanco | Gianmarco De Francisci Morales | Fabrizio Silvestri
2015 Volume 51 Issue 1

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Temporal information searching behaviour and strategies
Hideo Joho | Adam Jatowt | Roi Blanco
2015 Volume 51 Issue 6

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Fast and Space-Efficient Entity Linking for Queries
Roi Blanco | Giuseppe Ottaviano | Edgar Meij
Proceedings of the Eighth ACM International Conference on Web Search and Data Mining, WSDM 2015, Shanghai, China, February 2-6, 2015

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Online News Tracking for Ad-Hoc Information Needs
Jeroen B. P. Vuurens | Arjen P. de Vries | Roi Blanco | Peter Mika
Proceedings of the 2015 International Conference on The Theory of Information Retrieval, ICTIR 2015, Northampton, Massachusetts, USA, September 27-30, 2015

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Online News Tracking for Ad-Hoc Queries
Jeroen B. P. Vuurens | Arjen P. de Vries | Roi Blanco | Peter Mika
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

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Local Ranking Problem on the BrowseGraph
Michele Trevisiol | Luca Maria Aiello | Paolo Boldi | Roi Blanco
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

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From "Selena Gomez" to "Marlon Brando": Understanding Explorative Entity Search
Iris Miliaraki | Roi Blanco | Mounia Lalmas
Proceedings of the 24th International Conference on World Wide Web, WWW 2015, Florence, Italy, May 18-22, 2015

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Predicting Re-finding Activity and Difficulty
Sargol Sadeghi | Roi Blanco | Peter Mika | Mark Sanderson | Falk Scholer | David Vallet
Advances in Information Retrieval - 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings

2014

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Information extraction from multimedia web documents: an open-source platform and testbed
David Paul Dupplaw | Michael Matthews | Richard Johansson | Giulia Boato | Andrea Costanzo | Marco Fontani | Enrico Minack | Elena Demidova | Roi Blanco | Thomas Griffiths | Paul H. Lewis | Jonathon S. Hare | Alessandro Moschitti
2014 Volume 3 Issue 2

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Overview of NTCIR-11 Temporal Information Access (Temporalia) Task
Hideo Joho | Adam Jatowt | Roi Blanco | Hajime Naka | Shuhei Yamamoto
Proceedings of the 11th NTCIR Conference on Evaluation of Information Access Technologies, NTCIR-11, National Center of Sciences, Tokyo, Japan, December 9-12, 2014

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Identifying Re-finding Difficulty from User Query Logs
Sargol Sadeghi | Roi Blanco | Peter Mika | Mark Sanderson | Falk Scholer | David Vallet
Proceedings of the 2014 Australasian Document Computing Symposium, ADCS 2014, Melbourne, VIC, Australia, November 27-28, 2014

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Focused Crawling for Structured Data
Robert Meusel | Peter Mika | Roi Blanco
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, CIKM 2014, Shanghai, China, November 3-7, 2014

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NTCIR temporalia: a test collection for temporal information access research
Hideo Joho | Adam Jatowt | Roi Blanco
23rd International World Wide Web Conference, WWW '14, Seoul, Republic of Korea, April 7-11, 2014, Companion Volume

2013

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A survey of temporal web search experience
Hideo Joho | Adam Jatowt | Roi Blanco
22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013, Companion Volume

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Towards leveraging closed captions for news retrieval
Roi Blanco | Gianmarco De Francisci Morales | Fabrizio Silvestri
22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013, Companion Volume

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Web usage mining with semantic analysis
Laura Hollink | Peter Mika | Roi Blanco
22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013

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Influence of Timeline and Named-Entity Components on User Engagement
Yashar Moshfeghi | Michael Matthews | Roi Blanco | Joemon M. Jose
Advances in Information Retrieval - 35th European Conference on IR Research, ECIR 2013, Moscow, Russia, March 24-27, 2013. Proceedings

2012

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Graph-based term weighting for information retrieval
Roi Blanco | Christina Lioma
2012 Volume 15 Issue 1

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FBM-Yahoo! at RepLab 2012
José M. Chenlo | Jordi Atserias | Carlos Rodriguez | Roi Blanco
CLEF 2012 Evaluation Labs and Workshop, Online Working Notes, Rome, Italy, September 17-20, 2012

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Extending BM25 with multiple query operators
Roi Blanco | Paolo Boldi
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

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Language intent models for inferring user browsing behavior
Manos Tsagkias | Roi Blanco
The 35th International ACM SIGIR conference on research and development in Information Retrieval, SIGIR '12, Portland, OR, USA, August 12-16, 2012

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Characterizing web search queries that match very few or no results
Ismail Sengör Altingövde | Roi Blanco | Berkant Barla Cambazoglu | Rifat Ozcan | Erdem Sarigil | Özgür Ulusoy
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

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You should read this! let me explain you why: explaining news recommendations to users
Roi Blanco | Diego Ceccarelli | Claudio Lucchese | Raffaele Perego | Fabrizio Silvestri
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

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Measuring website similarity using an entity-aware click graph
Pablo N. Mendes | Peter Mika | Hugo Zaragoza | Roi Blanco
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

2011

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Energy-price-driven query processing in multi-center web search engines
Enver Kayaaslan | Berkant Barla Cambazoglu | Roi Blanco | Flavio Paiva Junqueira | Cevdet Aykanat
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Repeatable and reliable search system evaluation using crowdsourcing
Roi Blanco | Harry Halpin | Daniel M. Herzig | Peter Mika | Jeffrey Pound | Henry S. Thompson | Duc Thanh Tran
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Ranking related news predictions
Nattiya Kanhabua | Roi Blanco | Michael Matthews
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Enhanced results for web search
Kevin Haas | Peter Mika | Paul Tarjan | Roi Blanco
Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2011, Beijing, China, July 25-29, 2011

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Hybrid models for future event prediction
Giuseppe Amodeo | Roi Blanco | Ulf Brefeld
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011

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Keyword search over RDF graphs
Shady Elbassuoni | Roi Blanco
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011

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Coreference aware web object retrieval
Jeffrey Dalton | Roi Blanco | Peter Mika
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011

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Assigning documents to master sites in distributed search
Roi Blanco | Berkant Barla Cambazoglu | Flavio Paiva Junqueira | Ivan Kelly | Vincent Leroy
Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011

2010

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The 8th workshop on large-scale distributed systems for information retrieval (LSDS-IR'10)
Roi Blanco | Berkant Barla Cambazoglu | Claudio Lucchese
2010 Volume 44 Issue 2

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Probabilistic static pruning of inverted files
Roi Blanco | Alvaro Barreiro
2010 Volume 28 Issue 1

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Proceedings of the 8th Workshop on Large-Scale Distributed Systems for Information Retrieval, Geneva, Switzerland, July 23, 2010

Proceedings of the 8th Workshop on Large-Scale Distributed Systems for Information Retrieval, Geneva, Switzerland, July 23, 2010

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Entity summarization of news articles
Gianluca Demartini | Malik Muhammad Saad Missen | Roi Blanco | Hugo Zaragoza
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

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Finding support sentences for entities
Roi Blanco | Hugo Zaragoza
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

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Caching search engine results over incremental indices
Roi Blanco | Edward Bortnikov | Flavio Junqueira | Ronny Lempel | Luca Telloli | Hugo Zaragoza
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

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TAER: time-aware entity retrieval-exploiting the past to find relevant entities in news articles
Gianluca Demartini | Malik Muhammad Saad Missen | Roi Blanco | Hugo Zaragoza
Proceedings of the 19th ACM Conference on Information and Knowledge Management, CIKM 2010, Toronto, Ontario, Canada, October 26-30, 2010

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Caching search engine results over incremental indices
Roi Blanco | Edward Bortnikov | Flavio Junqueira | Ronny Lempel | Luca Telloli | Hugo Zaragoza
Proceedings of the 19th International Conference on World Wide Web, WWW 2010, Raleigh, North Carolina, USA, April 26-30, 2010

2009

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Mixed monolingual homepage finding in 34 languages: the role of language script and search domain
Roi Blanco | Christina Lioma
2009 Volume 12 Issue 3

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A Logical Inference Approach to Query Expansion with Social Tags
Christina Lioma | Roi Blanco | Marie-Francine Moens
Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings

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A Belief Model of Query Difficulty That Uses Subjective Logic
Christina Lioma | Roi Blanco | Raquel Mochales Palau | Marie-Francine Moens
Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings

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Part of Speech Based Term Weighting for Information Retrieval
Christina Lioma | Roi Blanco
Advances in Information Retrieval, 31th European Conference on IR Research, ECIR 2009, Toulouse, France, April 6-9, 2009. Proceedings

2008

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ECIR 2008 Workshop on Efficiency Issues on Information Retrieval
Roi Blanco | Fabrizio Silvestri
2008 Volume 42 Issue 1

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Efficiency Issues in Information Retrieval Workshop
Roi Blanco | Fabrizio Silvestri
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

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Probabilistic Document Length Priors for Language Models
Roi Blanco | Alvaro Barreiro
Advances in Information Retrieval , 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

2007

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Random walk term weighting for information retrieval
Roi Blanco | Christina Lioma
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

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Boosting static pruning of inverted files
Roi Blanco | Alvaro Barreiro
SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007

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Static Pruning of Terms in Inverted Files
Roi Blanco | Alvaro Barreiro
Advances in Information Retrieval, 29th European Conference on IR Research, ECIR 2007, Rome, Italy, April 2-5, 2007, Proceedings

2006

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TSP and cluster-based solutions to the reassignment of document identifiers
Roi Blanco | Alvaro Barreiro
2006 Volume 9 Issue 4

2005

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Characterization of a simple case of the reassignment of document identifiers as a pattern sequencing problem
Roi Blanco | Alvaro Barreiro
SIGIR 2005: Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Salvador, Brazil, August 15-19, 2005

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Document Identifier Reassignment Through Dimensionality Reduction
Roi Blanco | Alvaro Barreiro
Advances in Information Retrieval, 27th European Conference on IR Research, ECIR 2005, Santiago de Compostela, Spain, March 21-23, 2005, Proceedings