Lecture Notes in Computer Science 11437 Commenced Publication in 1973 Founding and Former Series Editors: Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen Editorial Board Members David Hutchison Lancaster University, Lancaster, UK Takeo Kanade Carnegie Mellon University, Pittsburgh, PA, USA Josef Kittler University of Surrey, Guildford, UK Jon M. Kleinberg Cornell University, Ithaca, NY, USA Friedemann Mattern ETH Zurich, Zurich, Switzerland John C. Mitchell Stanford University, Stanford, CA, USA Moni Naor Weizmann Institute of Science, Rehovot, Israel C. Pandu Rangan Indian Institute of Technology Madras, Chennai, India Bernhard Steffen TU Dortmund University, Dortmund, Germany Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA
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Lecture Notes in Computer Science 11437
Commenced Publication in 1973Founding and Former Series Editors:Gerhard Goos, Juris Hartmanis, and Jan van Leeuwen
Editorial Board Members
David HutchisonLancaster University, Lancaster, UK
Takeo KanadeCarnegie Mellon University, Pittsburgh, PA, USA
Josef KittlerUniversity of Surrey, Guildford, UK
Jon M. KleinbergCornell University, Ithaca, NY, USA
Friedemann MatternETH Zurich, Zurich, Switzerland
John C. MitchellStanford University, Stanford, CA, USA
Moni NaorWeizmann Institute of Science, Rehovot, Israel
C. Pandu RanganIndian Institute of Technology Madras, Chennai, India
Bernhard SteffenTU Dortmund University, Dortmund, Germany
Demetri TerzopoulosUniversity of California, Los Angeles, CA, USA
Doug TygarUniversity of California, Berkeley, CA, USA
More information about this series at http://www.springer.com/series/7409
This Springer imprint is published by the registered company Springer Nature Switzerland AGThe registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
The 41st European Conference on Information Retrieval (ECIR) was held in Cologne,Germany, during April 14–18, 2019, and brought together hundreds of researchersfrom Europe and abroad. The conference was organized by GESIS – Leibniz Institutefor the Social Sciences and the University of Duisburg-Essen—in cooperation with theBritish Computer Society’s Information Retrieval Specialist Group (BCS-IRSG).
These proceedings contain the papers, presentations, workshops, and tutorials givenduring the conference. This year the ECIR 2019 program boasted a variety of novelwork from contributors from all around the world and provided new platforms forpromoting information retrieval-related (IR) activities from the CLEF Initiative. Intotal, 365 submissions were fielded across the tracks from 50 different countries.
The final program included 39 full papers (23% acceptance rate), 44 short papers(29% acceptance rate), eight demonstration papers (67% acceptance rate), ninereproducibility full papers (75% acceptance rate), and eight invited CLEF papers. Allsubmissions were peer reviewed by at least three international Program Committeemembers to ensure that only submissions of the highest quality were included in thefinal program. As part of the reviewing process we also provided more detailed reviewforms and guidelines to help reviewers identify common errors in IR experimentationas a way to help ensure consistency and quality across the reviews.
The accepted papers cover the state of the art in IR: evaluation, deep learning,dialogue and conversational approaches, diversity, knowledge graphs, recommendersystems, retrieval methods, user behavior, topic modelling, etc., and also includednovel application areas beyond traditional text and Web documents such as the pro-cessing and retrieval of narrative histories, images, jobs, biodiversity, medical text, andmath. The program boasted a high proportion of papers with students as first authors, aswell as papers from a variety of universities, research institutes, and commercialorganizations.
In addition to the papers, the program also included two keynotes, four tutorials,four workshops, a doctoral consortium, and an industry day. The first keynote waspresented by this year’s BCS IRSG Karen Sparck Jones Award winner, Prof. KrisztianBalog, On Entities and Evaluation, and the second keynote was presented by Prof.Markus Strohmaier, On Ranking People. The tutorials covered a range of topics fromconducting lab-based experiments and statistical analysis to categorization and deeplearning, while the workshops brought together participants to discuss algorithmselection (AMIR), narrative extraction (Text2Story), Bibliometrics (BIR), as well associal media personalization and search (SoMePeAS). As part of this year’s ECIR wealso introduced a new CLEF session to enable CLEF organizers to report on andpromote their upcoming tracks. In sum, this added to the success and diversity of ECIRand helped build bridges between communities.
The success of ECIR 2019 would not have been possible without all the help fromthe team of volunteers and reviewers. We wish to thank all our track chairs for
coordinating the different tracks along with the teams of meta-reviewers and reviewerswho helped ensure the high quality of the program. We also wish to thank the demochairs: Christina Lioma and Dagmar Kern; student mentorship chairs: Ahmet Aker andLaura Dietz; doctoral consortium chairs: Ahmet Aker, Dimitar Dimitrov and ZeljkoCarevic; workshop chairs: Diane Kelly and Andreas Rauber; tutorial chairs: GuillaumeCabanac and Suzan Verberne; industry chair: Udo Kruschwitz; publicity chair: IngoFrommholz; and sponsorship chairs: Jochen L. Leidner and Karam Abdulahhad. Wewould like to thank our webmaster, Sascha Schüller and our local chair, Nina Dietzelalong with all the student volunteers who helped to create an excellent online andoffline experience for participants and attendees.
ECIR 2019 was sponsored by: DFG (Deutsche Forschungsgemeinschaft), BCS(British Computer Society), SIGIR (Special Interest Group on Information Retrieval),City of Cologne, Signal Media Ltd, Bloomberg, Knowledge Spaces, Polygon AnalyticsLtd., Google, Textkernel, MDPI Open Access Journals, and Springer. We thank themall for their support and contributions to the conference.
Finally, we wish to thank all the authors, reviewers, and contributors to theconference.
April 2019 Leif AzzopardiBenno SteinNorbert FuhrPhilipp MayrClaudia Hauff
Djoerd Hiemstra
vi Preface
Organization
General Chairs
Norbert Fuhr Universität Duisburg-Essen, GermanyPhilipp Mayr GESIS – Leibniz Institute for the Social Sciences,
Germany
Program Chairs
Leif Azzopardi University of Glasgow, UKBenno Stein Bauhaus-Universität Weimar, Germany
Short Papers and Poster Chairs
Claudia Hauff Delft University of Technology, The NetherlandsDjoerd Hiemstra University of Twente, The Netherlands
Workshop Chairs
Diane Kelly University of Tennessee, USAAndreas Rauber Vienna University of Technology, Austria
Tutorial Chairs
Guillaume Cabanac University of Toulouse, FranceSuzan Verberne Leiden University, The Netherlands
Demo Chairs
Christina Lioma University of Copenhagen, DenmarkDagmar Kern GESIS – Leibniz Institute for the Social Sciences,
Germany
Industry Day Chair
Udo Kruschwitz University of Essex, UK
Proceedings Chair
Philipp Mayr GESIS – Leibniz Institute for the Social Sciences,Germany
Publicity Chair
Ingo Frommholz University of Bedfordshire, UK
Sponsor Chairs
Jochen L. Leidner Thomson Reuters/University of Sheffield, UKKaram Abdulahhad GESIS – Leibniz Institute for the Social Sciences,
Germany
Student Mentoring Chairs
Ahmet Aker Universität Duisburg-Essen, GermanyLaura Dietz University of New Hampshire, USA
Website Infrastructure
Sascha Schüller GESIS – Leibniz Institute for the Social Sciences,Germany
Local Chair
Nina Dietzel GESIS – Leibniz Institute for the Social Sciences,Germany
Program Committee
Mohamed Abdel Maksoud Codoma.tech Advanced Technologies, EgyptAhmed Abdelali Research AdministrationKaram Abdulahhad GESIS - Leibniz institute for the Social Sciences,
GermanyDirk Ahlers Norwegian University of Science and Technology,
NorwayQingyao Ai University of Massachusetts Amherst, USAAhmet Aker University of Duisburg Essen, GermanyElif Aktolga Apple Inc., USADyaa Albakour Signal Media, UKGiambattista Amati Fondazione Ugo Bordoni, ItalyLinda Andersson Vienna University of Technology, AustriaAvi Arampatzis Democritus University of Thrace, GreeceIoannis Arapakis Telefonica Research, SpainJaime Arguello The University of North Carolina at Chapel Hill, USALeif Azzopardi University of Strathclyde, UKEbrahim Bagheri Ryerson University, USAKrisztian Balog University of Stavanger, NorwayAlvaro Barreiro University of A Coruña, Spain
viii Organization
Alberto Barrón-Cedeño Qatar Computing Research Institute, QatarSrikanta Bedathur IIT Delhi, IndiaAlejandro Bellogin Universidad Autonoma de Madrid, SpainPatrice Bellot Aix-Marseille Université - CNRS (LSIS), FrancePablo Bermejo Universidad de Castilla-La Mancha, SpainCatherine Berrut LIG, Université Joseph Fourier Grenoble I, FrancePrakhar Biyani YahooPierre Bonnet CIRAD, FranceGloria Bordogna National Research Council of Italy – CNR, ItalyDimitrios Bountouridis Delft University of Technology, The NetherlandsPavel Braslavski Ural Federal University, RussiaPaul Buitelaar Insight Centre for Data Analytics, National University
of Ireland Galway, IrelandGuillaume Cabanac IRIT - Université Paul Sabatier Toulouse 3, FranceFidel Cacheda Universidade da Coruña, SpainSylvie Calabretto LIRIS, FrancePável Calado Universidade de Lisboa, PortugalArthur Camara Delft University of Technology, The NetherlandsRicardo Campos Polytechnic Institute of Tomar, PortugalFazli Can Bilkent University, TurkeyIván Cantador Universidad Autónoma de Madrid, SpainCornelia Caragea University of Illinois at Chicago, USAZeljko Carevic GESIS, GermanyClaudio Carpineto Fondazione Ugo Bordoni, ItalyPablo Castells Universidad Autónoma de Madrid, SpainLong Chen University of Glasgow, UKMax Chevalier IRIT, FranceManoj Chinnakotla Microsoft, IndiaNurendra Choudhary International Institute of Information Technology,
Hyderabad, IndiaVincent Claveau IRISA - CNRS, FranceFabio Crestani University of Lugano (USI), SwitzerlandBruce Croft University of Massachusetts Amherst, USAZhuyun Dai Carnegie Mellon University, USAJeffery Dalton University of Glasgow, UKMartine De Cock University of Washington, USAPablo de La Fuente Universidad de Valladolid, SpainMaarten de Rijke University of Amsterdam, The NetherlandsArjen de Vries Radboud University, The NetherlandsYashar Deldjoo Polytechnic University of Milan, ItalyKuntal Dey IBM India Research Lab, IndiaEmanuele Di Buccio University of Padua, ItalyGiorgio Maria Di Nunzio University of Padua, ItalyLaura Dietz University of New Hampshire, USADimitar Dimitrov GESIS, GermanyMateusz Dubiel University of Strathclyde, UK
Organization ix
Carsten Eickhoff Brown University, USATamer Elsayed Qatar University, QatarLiana Ermakova UBO, FranceCristina España-Bonet UdS and DFKI, GermanyJose Alberto Esquivel Signal Media, UKHui Fang University of Delaware, USAHossein Fani University of New Brunswick, CanadaPaulo Fernandes PUCRS, BrazilNicola Ferro University of Padua, ItalyIngo Frommholz University of Bedfordshire, UKNorbert Fuhr University of Duisburg-Essen, GermanyMichael Färber University of Freiburg, GermanyPatrick Gallinari LIP6 - University of Paris 6, FranceShreyansh Gandhi Walmart Labs, USADebasis Ganguly IBM Ireland Research Lab, IrelandWei Gao Victoria University of Wellington, New ZealandDario Garigliotti University of Stavanger, NorwayAnastasia Giachanou University of Lugano, SwitzerlandGiorgos Giannopoulos Imis Institute, Athena R.C., GreeceLorraine Goeuriot University Grenoble Alpes, CNRS, FranceJulio Gonzalo UNED, SpainPawan Goyal IIT Kharagpur, IndiaMichael Granitzer University of Passau, GermanyGuillaume Gravier CNRS, IRISA, FranceShashank Gupta International Institute of Information Technology,
Hyderabad, IndiaCathal Gurrin Dublin City University, IrelandMatthias Hagen Martin-Luther-Universität Halle-Wittenberg, GermanyShuguang Han Google, USAAllan Hanbury Vienna University of Technology, AustriaPreben Hansen Stockholm University, SwedenDonna Harman NIST, USAMorgan Harvey Northumbria University, UKFaegheh Hasibi Norwegian University of Science and Technology,
NorwayClaudia Hauff Delft University of Technology, The NetherlandsJer Hayes Accenture, IrelandBen He University of Chinese Academy of Sciences, ChinaNathalie Hernandez IRIT, FranceDjoerd Hiemstra University of Twente, The NetherlandsFrank Hopfgartner The University of Sheffield, UKAndreas Hotho University of Würzburg, GermanyGilles Hubert IRIT, FranceAli Hürriyetoğlu Koc University, TurkeyDmitry Ignatov National Research University Higher School
of Economics, Russia
x Organization
Bogdan Ionescu University Politehnica of Bucharest, RomaniaRadu Tudor Ionescu University of Bucharest, RomaniaShoaib Jameel Kent University, UKAdam Jatowt Kyoto University, JapanShen Jialie Queen’s University, Belfast, UKJiepu Jiang Virginia Tech, USAXiaorui Jiang Aston University, UKAlexis Joly Inria, FranceGareth Jones Dublin City University, IrelandJaap Kamps University of Amsterdam, The NetherlandsNattiya Kanhabua NTENT, SpainJaana Kekäläinen University of Tampere, FinlandDiane Kelly University of Tennessee, USALiadh Kelly Maynooth University, IrelandDagmar Kern GESIS, GermanyRoman Kern Graz University of Technology, AustriaDhruv Khattar International Institute of Information Technology
Hyderabad, IndiaJulia Kiseleva Microsoft Research AI, USADietrich Klakow Saarland University, GermanyYiannis Kompatsiaris CERTH - ITI, GreeceKriste Krstovski University of Massachusetts Amherst, USAUdo Kruschwitz University of Essex, UKVaibhav Kumar Carnegie Mellon University, USAOren Kurland Technion, IsraelChiraz Latiri University of Tunis, TunisiaWang-Chien Lee The Pennsylvania State University, USATeerapong Leelanupab King Mongkut’s Institute of Technology LadkrabangMark Levene Birkbeck, University of London, UKLiz Liddy Center for Natural Language Processing,
Syracuse University, USANut Limsopatham AmazonChunbin Lin Amazon AWS, USAChristina Lioma University of Copenhagen, DenmarkAldo Lipani University College London, UKNedim Lipka Adobe, USAElena Lloret University of Alicante, SpainFernando Loizides Cardiff University, UKDavid Losada University of Santiago de Compostela, SpainNatalia Loukachevitch Research Computing Center of Moscow
State University, RussiaBernd Ludwig University of Regensburg, GermanyMihai Lupu Research Studios, AustriaCraig Macdonald University of Glasgow, UKAndrew Macfarlane City University London, UKJoao Magalhaes Universidade NOVA de Lisboa, Portugal
Organization xi
Walid Magdy The University of Edinburgh, UKMarco Maggini University of Siena, ItalyMaria Maistro University of Padua, ItalyThomas Mandl University of Hildesheim, GermanyBehrooz Mansouri Rochester Institute of Technology, USAIlya Markov University of Amsterdam, The NetherlandsStefania Marrara Consorzio C2T, ItalyMiguel Martinez-Alvarez Signal, UKBruno Martins IST and INESC-ID - Instituto Superior Técnico,
University of Lisbon, PortugalLuis Marujo Snap Inc., USAYosi Mass IBM Haifa Research Lab, IsraelPhilipp Mayr GESIS, GermanyEdgar Meij Bloomberg L.P., UKMassimo Melucci University of Padua, ItalyMarcelo Mendoza Universidad Técnica Federico Santa María, BrazilAlessandro Micarelli Roma Tre University, ItalyDmitrijs Milajevs Queen Mary University of London, UKSeyed Abolghasem
MirroshandelSharif University of Technology, Iran
Stefano Mizzaro University of Udine, ItalyBoughanem Mohand IRIT University Paul Sabatier Toulouse, FranceFelipe Moraes Delft University of Technology, The NetherlandsAjinkya More Netflix, USAJose Moreno IRIT/UPS, FranceYashar Moshfeghi University of Strathclyde, UKJosiane Mothe Institut de Recherche en Informatique de Toulouse,
FranceAndré Mourão Universidade NOVA de Lisboa, PortugalHenning Müller HES-SO, SwitzerlandFranco Maria Nardini ISTI-CNR, ItalyWolfgang Nejdl L3S and University of Hannover, GermanyMahmood Neshati Sharif University of Technology, IranDong Nguyen University of Twente, The NetherlandsMassimo Nicosia University of Trento, ItalyJian-Yun Nie University of Montreal, CanadaQiang Ning University of Illinois at Urbana-Champaign, USABoris Novikov National Research University Higher School
of Economics, RussiaAndreas Nuernberger Otto-von-Guericke University of Magdeburg, GermanyAurélie Névéol LIMSI, CNRS, Université Paris-Saclay, FranceNeil O’Hare Yahoo Research, USASalvatore Orlando Università Ca’ Foscari Venezia, ItalyIadh Ounis University of Glasgow, UKMourad Oussalah University of Oulu, FinlandDeepak P. Queen’s University Belfast, Ireland
xii Organization
Jiaul Paik IIT Kharagpur, IndiaJoao Palotti Vienna University of Technology/Qatar Computing
Research Institute, Austria/QatarGirish Palshikar Tata Research Development and Design Centre, IndiaJavier Parapar University of A Coruña, SpainGabriella Pasi Università degli Studi di Milano Bicocca, ItalyArian Pasquali University of Porto, PortugalBidyut Kr. Patra VTT Technical Research Centre, FinlandPavel Pecina Charles University in Prague, Czech RepublicGustavo Penha UFMGAvar Pentel University of Tallinn, EstoniaRaffaele Perego ISTI-CNR, ItalyVivien Petras Humboldt-Universität zu Berlin, GermanyJeremy Pickens Catalyst Repository Systems, USAKaren Pinel-Sauvagnat IRIT, FranceFlorina Piroi Vienna University of Technology, AustriaBenjamin Piwowarski CNRS, Pierre et Marie Curie University, FranceVassilis Plachouras Facebook, UKBob Planque Vrije Universiteit Amsterdam, The NetherlandsSenja Pollak University of Ljubljana, SloveniaMartin Potthast Leipzig University, GermanyGeorges Quénot Laboratoire d’Informatique de Grenoble, CNRS,
FranceRazieh Rahimi University of Tehran, IranNitin Ramrakhiyani TCS Research, Tata Consultancy Services Ltd., IndiaJinfeng Rao University of Maryland, USAAndreas Rauber Vienna University of Technology, AustriaTraian Rebedea University Politehnica of Bucharest, RomaniaNavid Rekabsaz Idiap Research Institute, SwitzerlandSteffen Remus University of Hamburg, GermanyPaolo Rosso Universitat Politècnica de València, SpainDmitri Roussinov University of Strathclyde, UKStefan Rueger Knowledge Media Institute, UKTony Russell-Rose UXLabs, UKAlan Said University of Skövde, SwedenMark Sanderson RMIT University, AustraliaEric Sanjuan Laboratoire Informatique d’Avignon- Université
d’Avignon, FranceRodrygo Santos Universidade Federal de Minas Gerais, BrazilKamal Sarkar Jadavpur University, Kolkata, IndiaFabrizio Sebastiani Italian National Council of Research, ItalyFlorence Sedes IRIT P. Sabatier University, FranceGiovanni Semeraro University of Bari, ItalyProcheta Sen Indian Statistical Institute, IndiaArmin Seyeditabari UNC Charlotte, USAMahsa Shahshahani University of Amsterdam, The NetherlandsAzadeh Shakery University of Tehran, Iran
Organization xiii
Manish Shrivastava International Institute of Information Technology,Hyderabad, India
Ritvik Shrivastava Columbia University, USARajat Singh International Institute of Information Technology,
Hyderabad, IndiaEero Sormunen University of Tampere, FinlandLaure Soulier Sorbonne Universités UPMC-LIP6, FranceRene Spijker Cochran, The NetherlandsEfstathios Stamatatos University of the Aegean, GreeceBenno Stein Bauhaus-Universität Weimar, GermanyL. Venkata Subramaniam IBM Research, IndiaHanna Suominen The ANU, AustraliaPascale Sébillot IRISA, FranceLynda Tamine IRIT, FranceThibaut Thonet University of Grenoble Alpes, FranceMarko Tkalcic Free University of Bozen-Bolzano, ItalyNicola Tonellotto ISTI-CNR, ItalyMichael Tschuggnall Institute for computer science, DBIS, Innsbruck,
AustriaTheodora Tsikrika Information Technologies Institute, CERTH, GreeceDenis Turdakov Institute for System Programming RASFerhan Ture Comcast Labs, USAYannis Tzitzikas University of Crete and FORTH-ICS, GreeceSumithra Velupillai KTH Royal Institute of Technology, SwedenSuzan Verberne Leiden University, The NetherlandsVishwa Vinay Adobe Research Bangalore, IndiaMarco Viviani Università degli Studi di Milano-Bicocca - DISCo,
ItalyStefanos Vrochidis Information Technologies Institute, GreeceShuohang Wang Singapore Management University, SingaporeChrista Womser-Hacker Universität Hildesheim, GermanyChenyan Xiong Carnegie Mellon University; Microsoft, USAGrace Hui Yang Georgetown University, USAPeilin Yang Twitter Inc., USATao Yang University of California at Santa Barbara, USAAndrew Yates Max Planck Institute for Informatics, GermanyHai-Tao Yu University of Tsukuba, JapanHamed Zamani University of Massachusetts Amherst, USAEva Zangerle University of Innsbruck, AustriaFattane Zarrinkalam Ferdowsi University, IranDan Zhang Facebook, USADuo Zhang Kunlun Inc.Shuo Zhang University of Stavanger, NorwaySicong Zhang Georgetown University, USAGuoqing Zheng Carnegie Mellon University, USALeonardo Zilio Université catholique de Louvain, BelgiumGuido Zuccon The University of Queensland, Australia
This talk addresses two broad topics, entities and evaluation, which have been the mainfocus of my research for over ten years. Over the past decade, we have witnessedentities becoming first-class citizens in many information access scenarios [1]. Withthis has also come an increased reliance on knowledge bases (a.k.a. knowledge graphs),which organize information about entities in a structured and semantically meaningfulway. Knowledge bases have enabled significant advancements on specific retrievaltasks, such as entity retrieval and entity linking [2], as well as have contributed to thegrand challenge effort of building intelligent personal assistants. The talk provides abrief synthesis of progress thus far, then highlights some open challenges that remain inthis space. In particular, the concept of a personal knowledge graph is introduced,which is a resource of structured information about entities personally relevant to agiven user. A range of tasks associated to personal knowledge graphs are alsodiscussed.
The second part of the talk concentrates on evaluation, which has been a centraltheme in information retrieval since the inception of the field. For a long time,system-oriented evaluation has primarily been performed using offline test collections,following the Cranfield paradigm. While this rigorous methodology ensures therepeatability and reproducibility of experiments, it is inherently limited by abstractingthe actual user, to a large extent, away. In this talk, an argument is made for the(complementary) need of online evaluation. Specifically, the “living labs” evaluationmethodology is presented, along with past and current efforts to implement it as acollaborative research and development scheme [3, 4].
References
1. Balog, K.: Entity-Oriented Search. The Information Retrieval Series. Springer, Cham (2018).https://eos-book.org
2. Hasibi, F., Balog, K. Bratsberg, S.E.: Exploiting entity linking in queries for entity retrieval.In: Proceedings of the 2nd ACM International Conference on the Theory of InformationRetrieval, ICTIR 2016, pp. 209–218 (2016)
3. Jagerman, R., Balog, K., Rijke, M.D.: Opensearch: Lessons learned from an online evaluationcampaign. J. Data Inf. Qual. 10(3), 13:1–13:15 (2018)
4. Schuth, A., Balog, K., Kelly, L.: Overview of the living labs for information retrieval eval-uation (LL4IR) CLEF lab 2015. In: Mothe, J., et al. (eds.) CLEF 2015. LNCS, vol. 9283,pp. 484–496. Springer, Cham (2015). https://doi.org/10.1007/978-3-319-24027-5_47
RWTH Aachen University and GESIS - Leibniz Institute for the Social [email protected]
http://cssh.rwth-aachen.de
Abstract. The popularity of search engines on the World Wide Web is atestament to the broad impact of the work done by the information retrievalcommunity over the last decades. The advances achieved by this communityhave not only made the World Wide Web more accessible, they have also madeit appealing to consider the application of ranking algorithms to other domains,beyond the ranking of documents. One of the most interesting examples is thedomain of ranking people. In this talk, I will first highlight some of the manychallenges that come with deploying ranking algorithms to individuals. I willthen show how mechanisms that are perfectly fine to utilize when rankingdocuments can have undesired or even detrimental effects when ranking people.This talk intends to stimulate a discussion on the manifold, interdisciplinarychallenges around the increasing adoption of ranking algorithms in computa-tional social systems.
Keywords: Information retrieval � Ranking � Computational social science
Pierre-Edouard Osche, Sylvain Castagnos, and Anne Boyer
Automated Early Leaderboard Generation from Comparative Tables . . . . . . . 244Mayank Singh, Rajdeep Sarkar, Atharva Vyas, Pawan Goyal,Animesh Mukherjee, and Soumen Chakrabarti
Query Analytics
Predicting the Topic of Your Next Query for Just-In-Time IR . . . . . . . . . . . 261Seyed Ali Bahrainian, Fattane Zarrinkalam, Ida Mele,and Fabio Crestani
QRFA: A Data-Driven Model of Information-Seeking Dialogues . . . . . . . . . 541Svitlana Vakulenko, Kate Revoredo, Claudio Di Ciccio,and Maarten de Rijke
Automated Semantic Annotation of Species Names in Handwritten Texts . . . 667Lise Stork, Andreas Weber, Jaap van den Herik, Aske Plaat,Fons Verbeek, and Katherine Wolstencroft
Tangent-V: Math Formula Image Search Using Line-of-Sight Graphs . . . . . . 681Kenny Davila, Ritvik Joshi, Srirangaraj Setlur, Venu Govindaraju,and Richard Zanibbi
Figure Retrieval from Collections of Research Articles . . . . . . . . . . . . . . . . 696Saar Kuzi and ChengXiang Zhai
Image Tweet Popularity Prediction with Convolutional Neural Network. . . . . 803Yihong Zhang and Adam Jatowt
Enriching Word Embeddings for Patent Retrieval with Global Context . . . . . 810Sebastian Hofstätter, Navid Rekabsaz, Mihai Lupu, Carsten Eickhoff,and Allan Hanbury
Impact of Training Dataset Size on Neural Answer Selection Models . . . . . . 828Trond Linjordet and Krisztian Balog
Unsupervised Explainable Controversy Detection from Online News . . . . . . . 836Youngwoo Kim and James Allan
Extracting Temporal Event Relations Based on Event Networks . . . . . . . . . . 844Duc-Thuan Vo and Ebrahim Bagheri
Dynamic-Keyword Extraction from Social Media . . . . . . . . . . . . . . . . . . . . 852David Semedo and João Magalhães
Local Popularity and Time in top-N Recommendation . . . . . . . . . . . . . . . . . 861Vito Walter Anelli, Tommaso Di Noia, Eugenio Di Sciascio,Azzurra Ragone, and Joseph Trotta
Michał Siedlaczek, Juan Rodriguez, and Torsten Suel
Cross-Domain Recommendation via Deep Domain Adaptation . . . . . . . . . . . 20Heishiro Kanagawa, Hayato Kobayashi, Nobuyuki Shimizu,Yukihiro Tagami, and Taiji Suzuki
It’s only Words and Words Are All I Have . . . . . . . . . . . . . . . . . . . . . . . . 30Manash Pratim Barman, Kavish Dahekar, Abhinav Anshuman,and Amit Awekar
Modeling User Return Time Using Inhomogeneous Poisson Process . . . . . . . 37Mohammad Akbari, Alberto Cetoli, Stefano Bragaglia,Andrew D. O’Harney, Marc Sloan, and Jun Wang
Document Performance Prediction for Automatic Text Classification . . . . . . . 132Gustavo Penha, Raphael Campos, Sérgio Canuto,Marcos André Gonçalves, and Rodrygo L. T. Santos
Contender: Leveraging User Opinions for Purchase Decision-Making . . . . . . 230Tiago de Melo, Altigran S. da Silva, Edleno S. de Moura,and Pável Calado
A Decade of Shared Tasks in Digital Text Forensics at PAN . . . . . . . . . . . . 291Martin Potthast, Paolo Rosso, Efstathios Stamatatos, and Benno Stein
Bogdan Ionescu, Henning Müller, Renaud Péteri,Duc-Tien Dang-Nguyen, Luca Piras, Michael Riegler, Minh-Triet Tran,Mathias Lux, Cathal Gurrin, Yashin Dicente Cid,Vitali Liauchuk, Vassili Kovalev, Asma Ben Abacha, Sadid A. Hasan,Vivek Datla, Joey Liu, Dina Demner-Fushman, Obioma Pelka,Christoph M. Friedrich, Jon Chamberlain, Adrian Clark,Alba García Seco de Herrera, Narciso Garcia, Ergina Kavallieratou,Carlos Roberto del Blanco, Carlos Cuevas Rodríguez,Nikos Vasillopoulos, and Konstantinos Karampidis