Accepted Papers

Full Papers

A Computational Approach for Objectively Derived Systematic Review Search Strategies.
Harrisen Scells, Guido Zuccon, Bevan Koopman and Justin Clark

A Framework for Argument Retrieval: Ranking Argument Clusters by Frequency and Specificity.
Lorik Dumani, Patrick J. Neumann and Ralf Schenkel

A Hierarchical Model for Data-to-Text Generation.
Clément Rebuffel, Laure Soulier, Geoffrey Scoutheeten and Patrick Gallinari

A Mixed Semantic Features Model for Chinese NER with Characters and Words.
Ning Chang, Jiang Zhong and Qing Li

Accelerating Substructure Similarity Search for Formula Retrieval.
Wei Zhong, Shaurya Rohatgi, Jian Wu, C. Lee Giles and Richard Zanibbi

An Attention Model of Customer Expectation to Improve Review Helpfulness Prediction.
Xianshan Qu, Xiaopeng Li, Csilla Farkas and John Rose

Answering Event-Related Questions over Long-term News Article Archives.
Jiexin Wang, Adam Jatowt, Masatoshi Yoshikawa and Michael Färber

Axiomatic Analysis of Contact Recommendation Methods in Social Networks: an IR perspective.
Javier Sanz-Cruzado, Craig Macdonald, Iadh Ounis and Pablo Castells

Beyond Modelling: Understanding Mental Disorders in Online Social Media.
Esteban Andrés Ríssola, Mohammad Aliannejadi and Fabio Crestani

Biconditional Generative Adversarial Networks for Multiview Learning with Missing Views.
Anastasiia Doinychko and Massih-Reza Amini

Context-guided Learning to Rank Entities.
Makoto P. Kato, Wiradee Imrattanatrai, Takehiro Yamamoto, Hiroaki Ohshima and Katsumi Tanaka

Counterfactual Online Learning to Rank.
Shengyao Zhuang and Guido Zuccon

Crisis-DIAS: A Multimodal Damage Identification and Assessment System.
Mansi Agarwal, Maitree Leekha, Ramit Sawhney and Rajiv Ratn Shah

Curriculum Learning Strategies for IR: An Empirical Study on Conversation Response Ranking.
Gustavo Penha and Claudia Hauff

Diagnosing BERT with Retrieval Heuristics.
Arthur Câmara and Claudia Hauff

Domain-independent Extraction of Scientific Concepts from Research Articles.
Arthur Brack, Jennifer D’Souza, Anett Hoppe, Sören Auer and Ralph Ewerth

Early detection of rumours on Twitter via stance transfer learning.
Lin Tian, Xiuzhen Zhang, Yan Wang and Huan Liu

Evaluating the Effectiveness of the Standard Insights Extraction Pipeline for Bantu Languages.
Mathibele Nchabeleng and Joan Byamugisha

Generation of Synthetic Query Auto Completion Logs.
Unni Krishnan, Alistair Moffat, Justin Zobel and Bodo Billerbeck

Graph-Embedding Empowered Entity Retrieval.
Emma Gerritse, Faegheh Hasibi and Arjen de Vries

Hindi-English Hate Speech Detection: Debiasing and Practical perspectives.
Shivang Chopra, Ramit Sawhney, Puneet Mathur and Rajiv Ratn Shah

Improving Knowledge Graph Embedding using Locally and Globally Attentive Relation Paths.
Ningning Jia, Xiang Cheng and Sen Su

Inductive Document Network Embedding with Topic-Word Attention.
Robin Brochier, Adrien Guille and Julien Velcin

Interactive Learning for Multimedia at Large.
Omar Shahbaz Khan, Björn Þór Jónsson, Stevan Rudinac, Jan Zahálka, Hanna Ragnarsdóttir, Þórhildur Þorleiksdóttir, Gylfi Þór Guðmundsson, Laurent Amsaleg and Marcel Worring

Joint Geographical and Temporal Modeling based on Matrix Factorization for Point-of-Interest Recommendation.
Hossein A. Rahmani, Mohammad Aliannejadi, Mitra Baratchi and Fabio Crestani

Joint Word and Entity Embeddings for Entity Retrieval from Knowledge Graph.
Fedor Nikolaev and Alexander Kotov

KvGR: A Graph-Based Interface for Explorative Sequential Question Answering on Heterogeneous Information Sources.
Hans Friedrich Witschel, Kaspar Riesen and Loris Grether

Learning Advanced Similarities and Training Features for Toponym Interlinking.
Giorgos Giannopoulos, Vassilis Kaffes and Georgios Kostoulas

Learning based Methods for Code Runtime Complexity Prediction.
Jagriti Sikka, Kushal Satya, Yaman Kumar, Shagun Uppal, Rajiv Ratn Shah and Roger Zimmermann

Learning to Rank Images with Cross-Modal Graph Convolutions.
Thibault Formal, Stéphane Clinchant, Jean Michel Renders, Sooyeol Lee and Geun Hee Cho

Leveraging Schema Labels to Enhance Dataset Search.
Zhiyu Chen, Haiyan Jia, Jeff Heflin and Brian Davison

Motion Words: A Text-like Representation of 3D Skeleton Sequences.
Jan Sedmidubsky, Petra Budikova, Vlastislav Dohnal and Pavel Zezula

Moving from formal towards coherent concept analysis: why, when and how.
Pavlo Kovalchuk, Diogo Proença, José Borbinha and Rui Henriques

Multi-components system for automatic Arabic diacritization.
Hamza Abbad and Shengwu Xiong

Multimodal Entity Linking for Tweets.
Omar Adjali, Romaric Besancon, Olivier Ferret, Herve Le Borgne and Brigitte Grau

Patch-based Identification of Lexical Semantic Relations.
Nesrine Bannour, Gaël Dias, Chahir Youssef and Houssam Akhmouch

Quantum-like Structure in Multidimensional Relevance Judgements.
Sagar Uprety, Prayag Tiwari, Shahram Dehdashti, Lauren Fell, Dawei Song, Peter Bruza and Massimo Melucci

ReadNet: A Hierarchical Transformer Framework for Web Article Readability Analysis.
Changping Meng, Muhao Chen and Jie Mao

Recognizing Semantic Relations: Attention-Based Transformers vs. Recurrent Models.
Dmitri Roussinov, Serge Sharoff and Nadezhda Puchnina

Recommending Music Curators: A Neural Style-Aware Approach.
Jianling Wang and James Caverlee

Regularised Intent Model for Discovering Multiple Intents in E-Commerce Tail Queries.
Subhadeep Maji, Bharat Thakarar, Priyank Patel, Mohit Kumar and Krishna Azad Tripathi

Reinforced Rewards Framework for Text Style Transfer.
Abhilasha Sancheti, Kundan Krishna, Anandhavelu N and Balaji Vasan Srinivasan

Relevance Ranking based on Query-Aware Context Analysis.
Ali Montazeralghaem, Razieh Rahimi and James Allan

Seed-guided Deep Document Clustering.
Maziar Moradi Fard, Thibaut Thonet and Eric Gaussier

Semantic Modelling of Citation Contexts for Context-aware Citation Recommendation.
Tarek Saier and Michael Färber

Semantic Path-Based Learning for Review Volume Prediction.
Ujjwal Sharma, Stevan Rudinac, Marcel Worring, Joris Demmers and Willemijn van Dolen

Temporal Latent Space Modeling for Community Prediction.
Hossein Fani, Ebrahim Bagheri and Weichang Du

TransRev: Modeling Reviews as Translations from Users to Items.
Alberto Garcia-Duran

Using Image Captions and Multitask Learning for Recommending Query Reformulations.
Gaurav Verma, Vishwa Vinay, Sahil Bansal, Shashank Oberoi, Makkunda Sharma and Prakhar Gupta

Utilising Information Foraging Theory for User Interaction with Image Query Auto-Completion.
Amit Kumar Jaiswal, Haiming Liu and Ingo Frommholz

VGCN-BERT: Augmenting BERT with Graph Embedding for Text Classification.
Zhibin Lu, Pan Du and Jian-Yun Nie

Variational Recurrent Sequence-to-Sequence Retrieval for Stepwise Illustration.
Vishwash Batra, Aparajita Haldar, Yulan He, Hakan Ferhatosmanoglu, George Vogiatzis and Tanaya Guha

Visual Re-ranking via Adaptive Collaborative Hypergraph Learning for Image Retrieval.
Noura Bouhlel, Ghada Feki and Chokri Ben Amar

What Can Task Teach Us About Query Reformulations?.
Lynda Tamine, Jesus Lovon Melgarejo and Karen Pinel-Sauvagnat

You Can Teach an Old Dog New Tricks: Rank Fusion applied to Coordination Level Matching for Ranking in Systematic Reviews.
Harrisen Scells, Guido Zuccon and Bevan Koopman

bias goggles – Graph-based Computation of the Bias of Web Domains through the Eyes of Users.
Panagiotis Papadakos and Giannis Konstantakis

Short Papers

A Latent Model for Ad Hoc Table Retrieval.
Ebrahim Bagheri and Feras Al-Obeidat

A Multi-task Approach to Open Domain Suggestion Mining using Language Model for Text Over-sampling.
Maitree Leekha, Mononito Goswami and Minni Jain

ANTIQUE: A Non-Factoid Question Answering Benchmark.
Helia Hashemi, Mohammad Aliannejadi, Hamed Zamani and Bruce Croft

Aspect-based Academic Search using Domain-specific KB.
Prajna Upadhyay, Srikanta Bedathur, Tanmoy Chakraborty and Maya Ramanath

Assessing the Impact of OCR Errors in Information Retrieval.
Guilherme Bazzo, Gustavo Lorentz, Danny Suarez Vargas and Viviane P. Moreira

BERT for Evidence Retrieval and Claim Verification.
Amir Soleimani, Christof Monz and Marcel Worring

BiOnt: Deep Learning using Multiple Biomedical Ontologies for Relation Extraction.
Diana Sousa and Francisco M. Couto

Calling attention to passages for biomedical question answering.
Tiago Almeida and Sérgio Matos

Contextualized Embeddings in Named-Entity Recognition: An Empirical Study on Generalization.
Bruno Taillé, Vincent Guigue and Patrick Gallinari

Crowdsourcing Truthfulness: The Impact of Judgment Scale and Assessor Bias.
David La Barbera, Kevin Roitero, Damiano Spina, Stefano Mizzaro and Gianluca Demartini

DAKE: Document-level Attention for Keyphrase Extraction.
Santosh Tokala Yaswanth Sri Sai, Debarshi Kumar Sanyal, Plaban Kumar Bhowmick and Partha Pratim Das

DSR: A Collection for the Evaluation of Graded Disease-Symptom Relations.
Markus Zlabinger, Sebastian Hofstätter, Navid Rekabsaz and Allan Hanbury

Distant Supervision for Extractive Question Summarization.
Tatsuya Ishigaki, Kazuya Machida, Hayato Kobayashi, Hiroya Takamura and Manabu Okumura

Document Network Projection in Pretrained Word Embedding Space.
Antoine Gourru, Julien Velcin, Julien Jacques and Adrien Guille

Domain Adaptation via Context Prediction for Engineering Diagram Search.
Harsh Jhamtani and Taylor Berg-Kirkpatrick

Dualism in Topical Relevance.
Panagiotis Papadakos and Orfeas Kalipolitis

Dynamic Heterogeneous Graph Embedding using Hierarchical Attentions.
Luwei Yang, Zhibo Xiao, Wen Jiang, Yi Wei, Yi Hu and Hao Wang

Easing Legal News Monitoring with Learning to Rank and BERT.
Luis Sanchez Izquierdo, Jiyin He, Jarana Manotumruksa, Dyaa Albakour, Miguel Martinez-Alvarez and Aldo Lipani

Generating query suggestions for cross-language and cross-terminology health information retrieval.
Paulo Santos and Carla Teixeira Lopes

HQACAN: Hierarchical Question-Answer Cross-Attention Networks for Answer Selection.
Haitian Yang and Xuan Zhao

Hybrid Semantic Recommender System for Chemical Compounds.
Márcia Barros, André Moitinho and Francisco M. Couto

Identifying Notable News Stories.
Antonia Saravanou, Giorgio Stefanoni and Edgar Meij

Irony Detection in a Multilingual Context.
Bilal Ghanem, Jihen Karoui, Farah Benamara, Paolo Rosso and Véronique Moriceau

Keyphrase Extraction as Sequence Labeling using Contextualized Embeddings.
Dhruva Sahrawat, Debanjan Mahata, Haimin Zhang, Mayank Kulkarni, Rakesh Gosangi, Agniv Sharma, Amanda Stent, Yaman Kumar, Rajiv Ratn Shah and Roger Zimmermann

Learning Image Information for eCommerce Queries.
Utkarsh Porwal

Machine-actionable data management plans: A knowledge retrieval approach to automate the assessment of funders’ requirements.
João Cardoso, Diogo Proença and José Borbinha

MedLinker: Medical Entity Recognition and Linking combining Neural Language Models with Approximate Dictionary Matching.
Daniel Loureiro and Alipio Jorge

Neural Embedding-based Metrics for Pre-Retrieval Query Performance Prediction.
Negar Arabzadeh, Fattane Zarrinkalam, Jelena Jovanovic and Ebrahim Bagheri

Neural Query-biased Abstractive Summarization Using Copying Mechanism.
Tatsuya Ishigaki, Hen-Hsen Huang, Hiroya Takamura, Hsin-Hsi Chen and Manabu Okumura

Novel and Diverse Recommendations by Leveraging Linear Models with User and Item Embeddings.
Alfonso Landin, Javier Parapar and Alvaro Barreiro

On Biomedical Named Entity Recognition: Experiments in Bilingual Transfer for Clinical and Social Media Texts.
Zulfat Miftakhutdinov, Ilseyar Alimova and Elena Tutubalina

On the Temporality of Priors in Entity Linking.
Renato Stoffalette Joao

PMD: An Optimal Transportation-based User Distance for Recommender Systems.
Yitong Meng, Xinyan Dai, Xiao Yan, James Cheng, Weiwen Liu, Jun Guo, Benben Liao and Guangyong Chen

Personalized Video Summarization based exclusively on User Preferences.
Costas Panagiotakis, Harris Papadakis and Paraskevi Fragopoulou

Predicting the Size of Candidate Document Set for Implicit Web Search Result Diversification.
Yasar Baris Ulu and Ismail Sengor Altingovde

Ranking Significant Discrepancies in Clinical Reports.
Sean MacAvaney, Arman Cohan, Nazli Goharian and Ross Filice

Rethinking Query Expansion for BERT Reranking.
Ramith Padaki, Zhuyun Dai and Jamie Callan

Semi-Supervised Extractive Question Summarization Using Question-Answer Pairs.
Kazuya Machida, Tatsuya Ishigaki, Hayato Kobayashi, Hiroya Takamura and Manabu Okumura

SentiInc : Incorporating Sentiment Information into Sentiment Transfer without Parallel Data.
Kartikey Pant, Yash Verma and Radhika Mamidi

Session-based Path Prediction by Combining Local and Global Content Preferences.
Kushal Chawla and Niyati Chhaya

SlideImages: A Dataset for Educational Image Classification.
David Morris, Eric Müller-Budack and Ralph Ewerth

Suicide Risk Assessment via Temporal Psycholinguistic Modeling.
Ramit Sawhney, Puneet Mathur, Shivang Chopra and Rajiv Shah

Supervised Learning Methods for Diversification of Image Search Results.
Burak Goynuk and Ismail Sengor Altingovde

Teaching a New Dog Old Tricks: Resurrecting Multilingual Retrieval Using Zero-shot Learning.
Sean MacAvaney, Luca Soldaini and Nazli Goharian

Text-Image-Video Summary Generation using Joint Integer Linear Programming.
Anubhav Jangra, Adam Jatowt, Mohammad Hasanuzzaman and Sriparna Saha

Towards Query Logs for Privacy Studies: On Deriving Search Queries from Questions.
Asia J. Biega, Jana Schmidt and Rishiraj Saha Roy

Understanding depression from psycholinguistic patterns in social media texts.
Alina Trifan, Rui Antunes, Sérgio Matos and José Luis Oliveira

Unsupervised Ensemble of Ranking Models for News Comments Using Pseudo Answers.
Soichiro Fujita, Hayato Kobayashi and Manabu Okumura

Reproducibility Papers

From MaxScore to Block-Max WAND: The Story of How Lucene Significantly Improved Query Evaluation Performance.
Adrien Grand, Robert Muir, Jim Ferenczi and Jimmy Lin

Influence of Random Walk Parametrization on Graph Embeddings.
Fabian Schliski, Jörg Schlötterer and Michael Granitzer

Knowledge Graph Entity Alignment with Graph Neural Networks: Lessons Learned.
Max Berrendorf, Evgeniy Faerman, Valentyn Melnychuk, Volker Tresp and Thomas Seidl

On the Replicability of Combining Word Embeddings and Retrieval Models.
Luca Papariello, Alexandros Bampoulidis and Mihai Lupu

Reproducibility is a Process, not an Achievement: The Replicability of IR Reproducibility Experiments.
Jimmy Lin and Qian Zhang

The Effect of Content-Equivalent Near-Duplicates on the Evaluation of Search Engines.
Maik Fröbe, Jan Philipp Bittner, Martin Potthast and Matthias Hagen

The Unfairness of Popularity Bias in Music Recommendation: A Reproducibility Study.
Dominik Kowald, Markus Schedl and Elisabeth Lex

Which BM25 Do You Mean? A Large-Scale Reproducibility Study of Scoring Variants.
Chris Kamphuis, Arjen de Vries, Leonid Boytsov and Jimmy Lin

Demo Papers

A Search Engine for Police Press Releases to Double-check the News.
Maik Fröbe, Nina Schwanke, Matthias Hagen and Martin Potthast

A Web-based Platform for Mining and Ranking Association Rules.
Addi Ait-Mlouk and Lili Jiang

Army ANT: A Workbench for Innovation in Entity-Oriented Search.
José Devezas and Sérgio Nunes

EveSense: What can you sense from Twitter?.
Muhammad Imran Razzak, Zafar Saeed and Rabeeh Ayaz

MathSeer: A Math-Aware Search Interface with Intuitive Formula Editing, Reuse, and Lookup.
Gavin Nishizawa, Jennifer Liu, Yancarlos Diaz, Abishai Dmello, Wei Zhong and Richard Zanibbi

NLPExplorer: Exploring the Universe of NLP Papers.
Monarch Parmar, Naman Jain, Pranjali Jain, Jayakrishna Sahit, Soham Pachpande, Shruti Singh and Mayank Singh

Neural-IR-Explorer: A Content-Focused Tool to Explore Neural Re-Ranking Results.
Sebastian Hofstätter, Markus Zlabinger and Allan Hanbury

Personal Research Assistant for Online Exploration of Historical News
Lidia Pivovarova, Axel Jean-Caurant, Jari Avikainen, Khalid Alnajjar, Mark Granroth-Wilding, Leo Leppänen, Elaine Zosa and Hannu Toivonen

QISS : an open source image similarity search engine.
Maxime Portaz, Ilyes Kacher, Hicham Randrianarivo and Sylvain Peyronnet

Revisionista.PT: Uncovering the News Cycle using Web Archives.
Flavio Martins and André Mourão

Doctoral Consortium Papers

Bibliometric-Enhanced Legal Information Retrieval.
Gineke Wiggers

Graph databases for Information Retrieval.
Chris Kamphuis

Graph-Based Entity-Oriented Search: A Unified Framework in Information Retrieval.
José Devezas

Incremental Approach for Automatic Generation of Domain-Specific Sentiment Lexicon.
Shamsuddeen Muhamamd

Reproducible Online Search Experiments.
Timo Breuer

Time-Critical Geolocation for Social Good.
Reem Suwaileh

Towards a better Contextualization of Web contents via Entity-level analytics.
Amit Kumar


BioASQ: Large-scale biomedical semantic indexing and question answering.
Martin Krallinger, Anastasia Krithara, Anastasios Nentidis, Georgios Paliouras and Marta Villegas

CLEF eHealth Evaluation Lab 2020.
Hanna Suominen, Liadh Kelly, Lorraine Goeuriot and Martin Krallinger

ChEMU: Named Entity Recognition and Event Extraction of Chemical Reactions from Patents.
Dat Quoc Nguyen, Zenan Zhai, Hiyori Yoshikawa, Biaoyan Fang, Christian Druckenbrodt, Camilo Thorne, Ralph Hoessel, Saber A. Akhondi, Trevor Cohn, Timothy Baldwin and Karin Verspoor

CheckThat! at CLEF 2020: Enabling the Automatic Identification and Verification of Claims on Social Media.
Alberto Barrón-Cedeño, Tamer Elsayed, Preslav Nakov, Giovanni Da San Martino, Maram Hasanain, Reem Suwaileh and Fatima Haouari

Finding Old Answers to New Math Questions: The ARQMath Lab at CLEF 2020.
Behrooz Mansouri, Anurag Agarwal, Douglas Oard and Richard Zanibbi

ImageCLEF 2020: Multimedia Retrieval in Lifelogging, Medical, Nature, and Internet Applications.
Bogdan Ionescu, Henning Müller, Renaud Peteri, Duc-Tien Dang-Nguyen, Liting Zhou, Luca Piras, Michael Riegler, Pål Halvorsen, Minh-Triet Tran, Mathias Lux, Cathal Gurrin, Jon Chamberlain, Adrian Clark, Antonio Campello, Alba G. Seco de Herrera, Asma Ben Abacha, Vivek Datla, Sadid A. Hasan, Joey Liu, Dina Demner-Fushman, Obioma Pelka, Christoph M. Friedrich, Yashin Dicente Cid, Serge Kozlovski, Vitali Liauchuk, Vassili Kovalev, Raul Berari, Paul Brie, Dimitri Fichou, Mihai Dogariu, Liviu Daniel Stefan and Mihai Gabriel Constantin

Introducing the CLEF 2020 HIPE Shared Task: Named Entity Recognition and Linking on Historical Newspapers.
Maud Ehrmann, Matteo Romanello, Stefan Bircher and Simon Clematide

LifeCLEF 2020 Teaser: Biodiversity Identification and Prediction Challenges.
Alexis Joly, Hervé Goëau, Stefan Kahl, Christophe Botella, Rafael Ruiz De Castaneda, Hervé Glotin, Elijah Cole, Julien Champ, Benjamin Deneu, Maximilien Servajean, Titouan Lorieul, Willem-Pier Vellinga, Fabian-Robert Stöter, Andrew Durso, Pierre Bonnet and Henning Müller

Living Labs for Academic Search at CLEF 2020.
Philipp Schaer, Johann Schaible and Bernd Müller

Shared Tasks on Authorship Analysis at PAN 2020.
Janek Bevendorff, Bilal Ghanem, Anastasia Giachanou, Mike Kestemont, Enrique Manjavacas, Martin Potthast, Francisco Manuel Rangel Pardo, Paolo Rosso, Günther Specht, Efstathios Stamatatos, Benno Stein, Matti Wiegmann and Eva Zangerle

Touché: First Shared Task on Argument Retrieval.
Alexander Bondarenko, Matthias Hagen, Martin Potthast, Henning Wachsmuth, Meriem Beloucif, Chris Biemann, Alexander Panchenko and Benno Stein

eRisk 2020: self-harm and depression challenges.
David E. Losada, Fabio Crestani and Javier Parapar