Nikolaos Aletras

2025

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Bridging the Gap: From Ad-hoc to Proactive Search in Conversations.
Chuan Meng|Francesco Tonolini|Fengran Mo|Nikolaos Aletras|Emine Yilmaz|Gabriella Kazai
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025

2023

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Self-training through Classifier Disagreement for Cross-Domain Opinion Target Extraction.
Kai Sun|Richong Zhang|Samuel Mensah|Nikolaos Aletras|Yongyi Mao|Xudong Liu
Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

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Towards Suicide Ideation Detection Through Online Conversational Context.
Ramit Sawhney|Shivam Agarwal|Atula Tejaswi Neerkaje|Nikolaos Aletras|Preslav Nakov|Lucie Flek
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

2020

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Automatic Generation of Topic Labels.
Areej Alokaili|Nikolaos Aletras|Mark Stevenson
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

2018

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Nowcasting the Stance of Social Media Users in a Sudden Vote: The Case of the Greek Referendum.
Adam Tsakalidis|Nikolaos Aletras|Alexandra I. Cristea|Maria Liakata
Proceedings of the 27th ACM International Conference on Information and Knowledge Management, CIKM 2018, Torino, Italy, October 22-26, 2018

2017

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Evaluating topic representations for exploring document collections.
Nikolaos Aletras|Timothy Baldwin|Jey Han Lau|Mark Stevenson
Journal of the Association for Information Science and Technology (JASIST) 2017 Volume 68 Issue 1
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Labeling Topics with Images Using a Neural Network.
Nikolaos Aletras|Arpit Mittal
Advances in Information Retrieval - 39th European Conference on IR Research, ECIR 2017, Aberdeen, UK, April 8-13, 2017, Proceedings

2016

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Why are these similar? Investigating item similarity types in a large digital library.
Aitor Gonzalez-Agirre|German Rigau|Eneko Agirre|Nikolaos Aletras|Mark Stevenson
Journal of the Association for Information Science and Technology (JASIST) 2016 Volume 67 Issue 7
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Inferring the Socioeconomic Status of Social Media Users Based on Behaviour and Language.
Vasileios Lampos|Nikolaos Aletras|Jens K. Geyti|Bin Zou|Ingemar J. Cox
Advances in Information Retrieval - 38th European Conference on IR Research, ECIR 2016, Padua, Italy, March 20-23, 2016. Proceedings

2015

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TM 2015 - Topic Models: Post-Processing and Applications Workshop.
Nikolaos Aletras|Jey Han Lau|Timothy Baldwin|Mark Stevenson
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, CIKM 2015, Melbourne, VIC, Australia, October 19 - 23, 2015