Mitarbeiterinnen und Mitarbeiter

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Vita

I'm a postdoctoral researcher at GESIS - Leibniz Institute for the Social Sciences in Köln, Germany. Before joining GESIS, I was a researcher in L3S Research CenterLeibniz Univerisity Hannover. I'm focusing on the research topics in the field of search as learning, user modeling, information retrieval and semantic Web. 


For more information, please refer to my homepage.

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Service

(Co-/) Chair of

  • IWILDS2020: 1st International Workshop on Investigating Learning During Web Search, collocated with the CIKM 2020 conference, 19 October 2020.
  • 8th International Workshop on Learning and Education with Web Data (LILE2019), collocated with 2019 ACM Conference on Web Science (WebSci19), 30 June 2019. Boston, MA, US.
  • SALMM: Search as Learning with Multimedia Information workshop (SALMM2019), collocated with 27th ACM International Conference on Multimedia (ACMMM19), 21 - 25 October 2019, Nice, France.

PC Member of

  • 6th ACM SIGIR Conference on Human Information Interaction and Retrieval (CHIIR2021)
  • The 29th ACM International Conference on Information and Knowledge Management (CIKM 2020)
  • 31st ACM Conference on Hypertext and Social Media (HT’20)
  • 3rd International Workshop on EntitY Retrieval and lEarning (EYRE '20), co-located with CIKM 2020
  • The 19th International Semantic Web Conference Poster & Demo track (ISWC 2020 P&D)
  • 7th International Workshop on Dataset PROFlLing and Search (PROFILES 2020), Co-located with The 19th International Semantic Web Conference (ISWC 2020)
  • The Web Conference 2020 (TheWebConf 2020 | Poster Track )
  • CLEOPATRA – 1ST International Workshop on Cross-Lingual Event-Centric Open Analytica. Co-located with The 17th Extended Semantic Web Conference (ESWC 2020)
  • 2nd International Workshop on EntitY REtrieval (EYRE-19), co-located with CIKM 2019
  • 2019 IEEE International Conference on Big Knowledge (ICBK 2019)
  • 30th ACM Conference on Hypertext and Social Media (HT’19 )
  • 2019 ISTIL Workshop at SETE 2019 (4th International Symposium on Emerging Technologies for Education) in conjunction with the 18th International Conference on Web-based Learning (ICWL 2019)
  • 6th International Workshop on Dataset PROFlLing and Search (PROFILES 2019), Co-located with The 18th International Semantic Web Conference (ISWC 2019)
  • The 18th International Semantic Web Conference Poster & Demo track (ISWC 2019 P&D)
  • 2018 IEEE International Conference on Big Knowledge (ICBK 2018)
  • 2018 AFEL Workshop (Workshop on Analytics for Everyday Learning). The workshop is co-located with the European Conference on Technology-Enhanced Learning (EC-TEL 2018)
  • The 17th International Semantic Web Conference Poster & Demo track (ISWC 2018 P&D)
  • International Workshop on Profiling and Searching Data on the Web (PROFILES & DATA SEARCH worksop), Co-located with The Web Conference '2018 (WWW 2018)
  • 2018 China Conference on Knowledge Graph and Semantic Computing (CCKS 2018)
  • 7th International Workshop on Learning & Education with Web Data (LILE 2018), collocated with 10th ACM Conference on Web Science (WebSci18)
  • The 16th International Semantic Web Conference Poster & Demo track (ISWC 2017 P&D)
  • 4th International Workshop on Dataset PROFIling and fEderated Search for Web Data (PROFILES2017), Co-located with: The 16th International Semantic Web Conference (ISWC 2017)
  • 3rd International Workshop on Summarizing and Presenting Entities and Ontologies (SumPre 2017)
  • 2016 China Conference on Knowledge Graph and Semantic Computing (CCKS 2016)

Journal Reviews

  • Semantic Web journal
  • IEEE’s Transactions on Learning Technologies

Teaching & Supervising

  • Supervised/co-supervised several bachelor/master students with their research project and thesis
      • 2019 Master thesis "Investigating the Influence of Resource Consumption Behavior on User Knowledge State in Informational Web Search Sessions" (- Domain Specific User Knowledge Modeling Based on Resource Consumption Behavior in Informational Web Search Sessions)
      • 2018 Master thesis "Detecting Informational Web Search Missions in Query Logs"
      • 2017 Student research project "A Clustering-based Approach towards Identity Resolution for Entity Variants in Web Markup"
      • 2017 DAAD funded international internship student project, "Analyse Web Markup Data of Type Event"
      • 2016 LUH student lab project "Entity Resolution & Clustering with Weighted Structural Similarity Metric and Pruning"
  • Teaching assistant of course Data & Knowledge Engineering at HHU, 19 & 20 summer semester
  • Teaching assistant of course Introduction to Data Science at LUH, 17-18 winter semester
  • Mentoring students from the Web Science Seminar course at LUH, 18 summer semester

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Forschung


Journal papers

  1. Yu, R. , Gadiraju, U. , Fetahu, B. , Lehmberg, O. , Ritze, D. and Dietze, S. KnowMore – Knowledge Base Augmentation with Structured Web Markup. Semantic Web Journal. (accepted on Dec 2017, click here to access the camera ready version)


Conference full research papers

  1. Yu, R. , Gadiraju, U. , Holtz, P. , Rokicki, M. , Kemkes, P. and Dietze, S. Predicting User Knowledge Gain in Informational Search Sessions. Proceedings of the 41st International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2018
  2. Gadiraju, U. , Yu, R. , Dietze, S. and Holtz, P. Analyzing Knowledge Gain of Users in Informational Search Sessions on the Web. 2018 ACM on Conference on Human Information Interaction and Retrieval (CHIIR), 2018
  3. Dietze, S. , Taibi, D. , Yu, R. , Barker, P. and d’Aquin, M. Analysing and Improving embedded Markup of Learning Resources on the Web. Proceedings of the 26th International Conference on World Wide Web (WWW), 2017
  4. Yu, R. , Gadiraju, U. , Fetahu, B. and Dietze, S. Adaptive Focused Crawling of Linked Data. Proceedings of the 2015 Conference on Web Information Systems Engineering (WISE). Miami, FL, US. 2015.
  5. Yu, R. , Liu, C., Jin, X., Wang, Y. and Cheng, X. Chinese Spam Microblog Filtering Based on the Fusion of Multi-Angle FeaturesThe 19th China Conference on Information Retrieval (CCIR). Taiyuan, Shanxi, China, Jul 2013. (In Chinese)


Workshop papers

  1. Ran YuMining Machine-Readable Knowledge from Structured Web Markup. Joint Proceedings of the 6th International Workshop on Dataset PROFlLing and Search & the 1st Workshop on Semantic Explainability, ISWC 2019. (invited paper)
  2. Masoud Davari, Ran Yu and Stefan Dietze. Understanding the Influence of Topic Familiarity on Search Behavior in Digital Libraries. The 2nd International Workshop on ExplainAble Recommendation and Search (EARS), 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2019. (pdf)
  3. Ran Yu, Ujwal Gadiraju and Stefan Dietze. Detecting, Understanding and Supporting Everyday Learning in Web Search. Workshop on Learning & Education with Web Data (LILE), 10th ACM Conference on Web Science (WebSci), 2018 (pdf)
  4. Anett Hoppe, Peter Holtz, Yvonne Kammerer, Ran Yu, Stefan Dietze and Ralph Ewerth. Current Challenges for Studying Search as Learning Processes. Workshop on Learning & Education with Web Data (LILE), 10th ACM Conference on Web Science (WebSci), 2018
  5. Pracheta Sahoo, Ujwal Gadiraju, Ran Yu, Sriparna Saha and Stefan Dietze. Analysing Structured Scholarly Data Embedded in Web Pages. International Workshop on Semantic, Analytics, Visualization. 25th International Conference on World Wide Web (WWW), 2016 (pdf)


Conference short papers & posters & demos

  1. Yu, R. , Gadiraju, U. , Fetahu, B. and Dietze, S. FuseM: Query-centric Data Fusion on Structured Web Markup. 2017 IEEE 33nd International Conference on Data Engineering (ICDE), 2017
  2. Yu, R. , Fetahu, B. , Gadiraju, U. and Dietze, S. A Survey on Challenges for Entity Retrieval in Web Markup Data. ISWC P&D, 2016
  3. Yu, R. , Gadiraju, U. , Zhu, X. , Fetahu, B. and Dietze, S. Towards Entity Summarisation on Structured Web Markup. The Semantic Web: ESWC 2016 Satellite Events, 2016


Book chapters

  1. Beetz, J. , Blümel, I. , Dietze, S. , Fetahu, B. , Gadiraju, U. , Hecher, M. , Krijnen, T. , Lindlar, M. , Tamke, M. , Wessel, R. and Yu, REnrichment and Preservation of Architectural Knowledge. 3D Research Challenges in Cultural Heritage II, 2016

Other types of publications

  1. Ralph Ewerth, Stefan Dietze, Anett Hoppe, Ran YuSALMM'19: First International Workshop on Search as Learning with Multimedia Information. ACM Multimedia 2019: 2724-2725 (pdf) (workshop summary)
  2. Ran Yu, Mathieu d'Aquin, Dragan Gasevic, Joachim Kimmerle, Eelco Herder, and Ralph Ewerth. "LILE2019: 8th International Workshop on Learning and Education with Web Data." In Companion Publication of the 10th ACM Conference on Web Science, pp. 15-16. ACM, 2019. (workshop summary)
  3. Ran Yu, Ujwal Gadiraju, Besnik Fetahu, Oliver Lehmberg, Dominique Ritze, Stefan Dietze: Reflections on: KnowMore - knowledge base augmentation with structured web markup. ISWC 2019, journal track. (extended abstract)

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Veröffentlichungen

Publikation

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Zeitschriftenaufsatz

Yu, Ran, Ujwal Gadiraju, Besnik Fetahu, Oliver Lehmberg, Dominique Ritze, and Stefan Dietze. 2019. "KnowMore – Knowledge Base Augmentation with Structured Web Markup." Semantic Web Journal 10 (1): 159-180. doi: http://dx.doi.org/10.3233/SW-180304. http://www.semantic-web-journal.net/content/knowmore-knowledge-base-augmentation-structured-web-markup-1.

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Beitrag im Sammelwerk

Davari, Masoud, Ran Yu, and Stefan Dietze. 2020 (Forthcoming). "Understanding the Influence of Topic Familiarity on SearchBehavior in Digital Libraries." In InProceedings of SIGIR 2019 Workshop on ExplainAble Recommendation and Search(EARS’19), https://ears2019.github.io/Davari-EARS2019.pdf.

Yu, Ran, Mathieu d'Aquin, Dragan Gasevic, Joachim Kimmerle, Eelco Herder, and Ralph Ewerth. 2019. "LILE2019: 8th International Workshop on Learning and Education with Web Data." In WebSci '19: Companion Publication of the 10th ACM Conference on Web Science, edited by Paolo Boldi, Brooke Foucault Welles, Katharina Kinder-Kurlanda, Christo Wilson, Isabella Peters, and Wagner Meira, 15-16. New York: ACM. doi: http://dx.doi.org/10.1145/3328413.3329404.

Yu, Ran. 2019. "Mining Machine-Readable Knowledge from Structured Web Markup." In Joint Proceedings of the 6th International Workshop on Dataset PROFlLing and Search & the 1st Workshop on Semantic Explainability co-located with the 18th International Semantic Web Conference (ISWC 2019), edited by Elena Demidova, Stefan Dietze, John Breslin, Simon Gottschalk, Philipp Cimiano, Basil Ell, Agnieszka Lawrynowicz, Laura Moss, and Axel-Cyrille Ngonga Ngomo, CEUR workshop proceedings 2465, 16. Aachen: RWTH.

Ewerth, Ralph, Stefan Dietze, Anett Hoppe, and Ran Yu. 2019. "SALMM'19: First International Workshop on Search as Learning with Multimedia Information." In MM '19: Proceedings of the 27th ACM International Conference on Multimedia, edited by Laurent Amsaleg, Benoit Huet, Martha Larson, Guillaume Gravier, Hayley Hung, Chong-Wah Ngo, and Wei Tsang Ooi, 2724-2725. New York: ACM. https://doi.org/10.1145/3343031.3350553.

Gadiraju, Ujwal, Ran Yu, Stefan Dietze, and Peter Holtz. 2018. "Analyzing Knowledge Gain of Users in Informational Search Sessions on the Web." In CHIIR '18 Proceedings of the 2018 Conference on Human Information Interaction & Retrieval , edited by Chirag Shah, Nicholas J. Belkin, Katriina Byström, Jeff Huang, and Falk Scholer, 2-11. New York: ACM. doi: http://dx.doi.org/10.1145/3176349.3176381.

Hoppe, Anett, Peter Holtz, Yvonne Kammerer, Ran Yu, Stefan Dietze, and Ralph Ewerth. 2018. "Current Challenges for Studying Search as Learning Processes." In 7th Workshop on Learning & Education with Web Data (LILE2018), in conjunction with ACM Web Science 2018 (WebSci18), Amsterdam, NL, 27 May, 2018, edited by Stefan Dietze, Mathieu d'Aquin, Dragan Gasevic, Eelco Herder, and Joachim Kimmerle, ACM.

Yu, Ran, Ujwal Gadiraju, and Stefan Dietze. 2018. "Detecting, Understanding and Supporting Everyday Learning in Web Search." In 7th Workshop on Learning & Education with Web Data (LILE2018), in conjunction with ACM Web Science 2018 (WebSci18), Amsterdam, NL, 27 May, 2018, edited by Stefan Dietze, Mathieu d'Aquin, Dragan Gasevic, Eelco Herder, and Joachim Kimmerle, ACM.

Yu, Ran, Ujwal Gadiraju, Peter Holtz, Markus Rokicki, Philipp Kemkes, and Stefan Dietze. 2018. "Predicting User Knowledge Gain in Informational Search Sessions." In SIGIR '18 The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, edited by Kevyn Collins-Thompson, Qiaozhu Mei, Brian Davison, Yiqun Liu, and Emine Yilmaz, 75-84. New York: ACM. doi: http://dx.doi.org/10.1145/3209978.3210064. http://arxiv.org/abs/1805.00823.

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Herausgeberschaft

Ewerth, Ralph, Stefan Dietze, Anett Hoppe, and Ran Yu, ed. 2019. Proceedings of the 1st International Workshop on Search as Learning with Multimedia Information. MM 19 The 27th ACM International Conference on Multimedia, Nice, France - October 21 - 25, 2019. New York: ACM. https://dl.acm.org/citation.cfm?id=3347451.

Vortrag

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Konferenzbeitrag

Yu, Ran, Ujwal Gadiraju, Besnik Fetahu, Oliver Lehmberg, Dominique Ritze, and Stefan Dietze. 2019. "KnowMore – Knowledge Base Augmentation with Structured Web Markup." 18th International Semantic Web Conference (ISWC19), journal track, Auckland, New Zealan, 26.10.2019.

Yu, Ran, Mathieu d'Aquin, Dragan Gasevic, Joachim Kimmerle, Eelco Herder, and Ralph Ewerth. 2019. "LILE2019: 8th International Workshop on Learning and Education with Web Data.." ACM WebSci 2019, Boston, MA, USA​, 30.06.2019.

Yu, Ran. 2019. "Mining Machine-Readable Knowledge from Structured Web Markup." The 6th International Workshop on Dataset PROFlLing and Search & the 1st Workshop on Semantic Explainability, ISWC 2019, 27.10.2019.

Davari, Masoud, Ran Yu, and Stefan Dietze. 2019. "Understanding the Influence of Topic Familiarity on Search Behavior in Digital Libraries." SIGIR 2019 Workshop on ExplainAble Recommendation and Search (EARS’19), 25.09.2019.

Gadiraju, Ujwal, Ran Yu, Stefan Dietze, and Peter Holtz. 2018. "Analyzing Knowledge Gain of Users in Informational Search Sessions on the Web." Conference on Human Information Interaction & Retrieval 2018 , 12.03.2018.

Hoppe, Anett, Peter Holtz, Yvonne Kammerer, Ran Yu, Stefan Dietze, and Ralph Ewerth. 2018. "Current Challenges for Studying Search as Learning Processes." 7th Workshop on Learning & Education with Web Data (LILE2018), in conjunction with ACM Web Science 2018 (WebSci18), 27.05.2018.

Yu, Ran, Ujwal Gadiraju, and Stefan Dietze. 2018. "Detecting, Understanding and Supporting Everyday Learning in Web Search." 7th Workshop on Learning & Education with Web Data (LILE2018), in conjunction with ACM Web Science 2018 (WebSci18), 27.05.2018.

Yu, Ran, Ujwal Gadiraju, Peter Holtz, Markus Rokicki, Philipp Kemkes, and Stefan Dietze. 2018. "Predicting User Knowledge Gain in Informational Search Sessions." The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, 09.07.2018.