Dr Ziqi Zhang

Information School

Senior Lecturer in Social Media

Dr Ziqi Zhang
ziqi.zhang@sheffield.ac.uk
+44 114 222 2657

Full contact details

Dr Ziqi Zhang
Information School
Regent Court (IS)
211 Portobello
Sheffield
S1 4DP
Profile

I am currently an academic member of staff of the Information School. Before joining the Information School in 2018, I was a computer science lecturer at the Computing and Technology Department, Nottingham Trent University (2016-18), and a researcher in the Department of Computer Science, University of Sheffield (pre-2016).

My research addresses methods that enable machines to extract human knowledge from text, to represent such knowledge in a structured representation that is understandable and usable by machines. This covers areas of knowledge graphs, natural language processing, text mining, and social media analytics. My work features close collaboration with industry partners, to apply research output to real-world problem solving. For example, I worked with Archaeological Data Services from the University of York to create ArchSearch, an advanced search engine for archaeology grey literature backed by an archaoelogy knowledge graph. I worked with The Klood Ltd to create the first football rumour extraction engine based on Twitter, FootballWhispers.com. And I worked with Vamstar Ltd. to develop a knowledge graph of the healthcare sector supply chain, in order to improve public healthcare procurement. These projects are funded by a range of research councils and private bodies, such EPSRC, AHRC, and InnovateUK.

I am always looking for PhD students in the areas of knowledge graphs, text mining and social media analytics. And I am interested in collaboration with external partners in any capacity.

University responsibilities

  • Exams Officer
Research interests

My research addresses methods that enable machines to extract human knowledge from text, to represent such knowledge in a structured representation that is understandable and usable by machines. This ultimately enhances our capability of processing and sense-making of very large scale data, improving decision making. Specifically, this include but is not limited to:

  • Knowledge graph research: the automatic creation, augmentation, and mapping of structured ‘databases’ that support machine understandability and reasoning. Knowledge graphs are widely used today by search engines and industry applications. For example, Google uses knowledge graphs to improve its search results; pharmaceutical companies use knowledge graphs to discover unknown chemical compouds that can be used for drug development. Our project ‘Archaeotools’ was an example of developing knowledge graphs for the archaeology domain. This led to the ArchSearch service that currently powers one of the largest archaeology databse in the UK.
  • Information Extraction: developing computational methods to automatically transform unstructured, natural language text into structured representation that could support machine understandability and reasoning. This could include the extraction of terms, concepts, named entities, and relations between them from texts. I am particularly interested in the development and adaptation of IE methods in domain specific contexts, such as bibliometrics research, cultural heritage, and the legal domain.
  • Social media analysis: the application and adaptation of Information Extraction methods onto social media text analytics, to enable event discovery and monitoring. For example, I worked with Rotherham United Football Club to develop content moderation methods to tackle online hate. I worked with Diabetes.co.uk to develop computational methods for analysing user generated content in its forums. And I worked with a team of researchers to develop the first football rumour extraction engine using Twitter, FootballWhispers.com.
  • Semantic Web and Linked Data: the broader range of topics related to the vision of tomorrow’s Web where machine understandable data are put on the Web, shared and reused across application, enterprise, and community boundaries.
Publications

Journal articles

Chapters

Conference proceedings papers

  • Fallatah O, Zhang Z & Hopfgartner F (2021) A hybrid approach for large knowledge graphs matching. Proceedings of the 16th International Workshop on Ontology Matching (OM 2021). Virtual Conference, 25 October 2021 - 25 October 2021. View this article in WRRO RIS download Bibtex download
  • Zhao Z, Zhang Z & Hopfgartner F (2021) A Comparative Study of Using Pre-trained Language Models for Toxic Comment Classification. Companion Proceedings of the Web Conference 2021 View this article in WRRO RIS download Bibtex download
  • Fallatah O, Zhang Z & Hopfgartner F (2021) KGMatcher Results for OAEI 2021. CEUR Workshop Proceedings, Vol. 3063 (pp 160-166) RIS download Bibtex download
  • Zhang Z, Bizer C, Peeters R & Primpeli A (2020) MWPD2020: Semantic web challenge on mining the web of html-embedded product data. CEUR Workshop Proceedings, Vol. 2720 RIS download Bibtex download
  • Fallatah O, Zhang Z & Hopfgartner F (2020) A gold standard dataset for large knowledge graphs matching. CEUR Workshop Proceedings, Vol. 2788 (pp 24-35) RIS download Bibtex download
  • Zhang Z, Petrak J & Maynard D (2018) Adapted TextRank for Term Extraction: A generic method of improving automatic term extraction algorithms. Procedia Computer Science, Vol. 137 (pp 102-108), 10 September 2018 - 13 September 2018. View this article in WRRO RIS download Bibtex download
  • Robinson D, Zhang Z & Tepper J (2018) Hate speech detection on Twitter : feature engineering v.s. feature selection. The Semantic Web: ESWC 2018 Satellite Events (pp 46-49). Crete, Greece, 3 June 2018 - 7 June 2018. View this article in WRRO RIS download Bibtex download
  • Zhang Z, Robinson D & Tepper J (2018) Detecting Hate Speech on Twitter Using a Convolution-GRU Based Deep Neural Network. Lecture Notes in Computer Science, Vol. 10843 (pp 745-760), 3 June 2018 - 7 June 2018. View this article in WRRO RIS download Bibtex download
  • Zhang Z, Nuzzolese AG & Gentile AL (2017) Entity deduplication on ScholarlyData. The Semantic Web, Vol. Part 1 (pp 85-100), 28 May 2017 - 1 June 2017. View this article in WRRO RIS download Bibtex download
  • Mazumdar S & Zhang Z (2016) Visualizing semantic table annotations with TableMiner. CEUR Workshop Proceedings, Vol. 1690 RIS download Bibtex download
  • Mazumdar S & Zhang Z (2016) A tool for creating and visualizing semantic annotations on relational tables. CEUR Workshop Proceedings, Vol. 1699 (pp 2-10) RIS download Bibtex download
  • Zhang Z, Gao J & Ciravegna F (2016) JATE 2.0: Java Automatic Term Extraction with Apache Solr. Proceedings of the 10th International Conference on Language Resources and Evaluation, LREC 2016 (pp 2262-2269) View this article in WRRO RIS download Bibtex download
  • Gentile AL, Zhang Z & ciravegna F (2014) Self Training Wrapper Induction with Linked Data. TSD2014. B'rno, 8 September 2014 - 12 September 2014. RIS download Bibtex download
  • (2014) The Semantic Web – ISWC 2014 RIS download Bibtex download
  • Zhang Z (2014) Disambiguating Web tables using partial data. CEUR Workshop Proceedings, Vol. 1272 (pp 213-216) RIS download Bibtex download
  • Zhang Z (2014) Learning with Partial Data for Semantic Table Interpretation (pp 607-618) RIS download Bibtex download
  • Zhang Z, Cohn T & Ciravegna F (2013) Topic-oriented Words as Features for Named Entity Recognition. Proceedings of the 14th International Conference on Intelligent Text Processing and Computational Linguistics (CICLING) RIS download Bibtex download
  • Blomqvist E, Zhang Z, Gentile AL, Augenstein I & Ciravegna F (2013) Statistical knowledge patterns for characterising linked data. CEUR Workshop Proceedings, Vol. 1188 RIS download Bibtex download
  • Gentile AL, Zhang Z, D'Amato C & Paulheim H (2013) LD4IE - Linked data for information extraction. CEUR Workshop Proceedings, Vol. 1057 RIS download Bibtex download
  • Augenstein I, Gentile AL, Norton B, Zhang Z & Ciravegna F (2013) Mapping keywords to Linked Data resources for automatic query expansion. CEUR Workshop Proceedings, Vol. 992 (pp 9-20) RIS download Bibtex download
  • Elbedweihy K, Wrigley SN, Ciravegna F & Zhang Z (2013) Using BabelNet in bridging the gap between natural language queries and linked data concepts. CEUR Workshop Proceedings, Vol. 1064 RIS download Bibtex download
  • Augenstein I, Gentile AL, Norton B, Zhang Z & Ciravegna F (2013) Mapping Keywords to Linked Data Resources for Automatic Query Expansion (pp 101-112) RIS download Bibtex download
  • Gentile AL, Zhang Z & Ciravegna F (2013) Web scale information extraction with LODIE. AAAI Fall Symposium - Technical Report, Vol. FS-13-04 (pp 24-27) RIS download Bibtex download
  • Zhang Z, gentile AL, Ciravegna & Augenstein (2013) Unsupervised Wrapper Induction using Linked Data. K-cap 2013, 23 June 2013 - 26 June 2013. RIS download Bibtex download
  • Ciravegna F, Gentile A & Zhang Z (2012) LODIE - Linked Open Data for Web-scale Information Extraction. Semantic Web and Information Extraction workshop in EKAW2012 RIS download Bibtex download
  • Zhang Z, Webster P, Uren V, Varga A & Ciravegna F (2012) Automatically Extracting Procedural Knowledge from Instructional Texts using Natural Language Processing. International Conference on Language Resources and Evaluation (LREC 2012). Istanbul View this article in WRRO RIS download Bibtex download
  • Gentile AL, Zhang & Ciravegna (2012) LODIE: Linked Open Data for Web-scale Information Extraction. Proceedings of the Workshop on Semantic Web and Information Extraction (SWAIE 2012). Galway, 8 October 2012 - 12 October 2012. RIS download Bibtex download
  • Dadzie A, Uren V, Zhang Z & Webster P (2011) An Integrated Environment for Semantic Knowledge Work. Conference on Information and Knowledge Management. Demo track at the 20th ACM Conference on Information and Knowledge Management RIS download Bibtex download
  • Zhang Z, Gentile A & Ciravegna F (2011) Harnessing different knowledge sources to measure semantic relatedness under a uniform model. Empirical Methods in Natural Language Processing RIS download Bibtex download
  • Dadzie A-S, Uren V, Zhang Z & Webster P (2011) An integrated environment for semantic knowledge work. Proceedings of the 20th ACM international conference on Information and knowledge management - CIKM '11, 24 October 2011 - 28 October 2011. View this article in WRRO RIS download Bibtex download
  • Zhang Z, Gentile AL & Ciravegna F (2011) Harnessing different knowledge sources to measure semantic relatedness under a uniform model. EMNLP '11 Proceedings of the Conference on Empirical Methods in Natural Language Processing (pp 991-1002). Stroudsburg, 27 July 2011 - 29 July 2011. RIS download Bibtex download
  • Fernandez M, Zhang Z, Lopez V, Uren V & Motta E (2011) Ontology augmentation: Combining semantic web and text resources. KCAP 2011 - Proceedings of the 2011 Knowledge Capture Conference (pp 9-16) RIS download Bibtex download
  • Zhang Z, Chapman S & Ciravegna F (2010) A Methodology towards Effective and Efficient Manual Document Annotation: Addressing Annotator Discrepancy and Annotation Quality.. EKAW, Vol. 6317 (pp 301-315) RIS download Bibtex download
  • Zhang Z, Uren V & Ciravegna F (2010) A comprehensive solution to procedural knowledge acquisition using information extraction. KDIR 2010 - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval (pp 432-437) RIS download Bibtex download
  • Zhang Z, Iria J & Ciravegna F (2010) Improving Domain-specific Entity Recognition with Automatic Term Recognition and Feature Extraction.. LREC RIS download Bibtex download
  • Zhang Z, Gentile A, Xia L, Iria J & Chapman S (2010) A Random Graph Walk based Approach to Compute Semantic Relatedness Using Knowledge from Wikipedia. Language Resources and Evaluation RIS download Bibtex download
  • Gentile AL, Zhang Z, Xia L & Iria J (2009) Graph-based Semantic Relatedness for Named Entity Disambiguation. Proceedings of S3T 2009: International Conference on Software, Services and Semantic Technologies, 28-29 October 2009, Sofia, Bulgaria (pp 13-20-13-20) RIS download Bibtex download
  • Zhang Z, Lei X, Greenwood M & Iria J (2009) Too Many Mammals: Improving the Diversity of Automatically Recognized Terms. Proceedings of the International Conference on Recent Advances in Natural Language Processing RIS download Bibtex download
  • Zhang Z & Iria J (2009) A Novel Approach to Automatic Gazetteer Generation using Wikipedia. Proceedings of the ACL’09 Workshop on Collaboratively Constructed Semantic Resources RIS download Bibtex download
  • Brewster C, Jupp S, Luciano J, Shotton D, Stevens RD & Zhang Z (2009) Issues in learning an ontology from text. BMC Bioinformatics, Vol. 10(SUPPL. 5) View this article in WRRO RIS download Bibtex download
  • Jeffrey S, Richards J, Ciravegna F, Waller S, Chapman S & Zhang Z (2008) When ontology and reality collide: the Archaeotools project, facetted classification and natural language processing in an archaeological context.. 36th Annual Conference on Computer Applications and Quantitative Methods in Archaeology On the Road to Reconstructing the Past RIS download Bibtex download
  • Zhang Z, Iria J, Brewster C & Ciravegna F (2008) A Comparative Evaluation of Term Recognition Algorithms.. LREC RIS download Bibtex download
  • Brewster C, Iria J, Zhang Z, Ciravegna F, Guthrie F & Wilks Y (2007) Dynamic Iterative Ontology Learning. Proceedings of Recent Advances in Natural Language Processing 2007 (RANLP-07) RIS download Bibtex download
  • Iria J, Xia L & Zhang Z (2007) WIT: Web People Search Disambiguation using Random Walks. Proceedings of the 4th International Workshop on Semantic Evaluations (Semeval 2007), RIS download Bibtex download
  • Gentile A, Zhang Z, Lei X & Iria J () Semantic Relatedness approach for Named Entity Disambiguation. Italian Research Conference on Digital Libraries RIS download Bibtex download
  • Zhang , Gentile AL, augenstein , Blomqvist E & ciravegna () Mining Equivalent Relations from Linked Data. http://aclweb.org/anthology/P/P13/P13-2052.pdf. Sofia, Bulgaria, 4 August 2013 - 9 August 2013. RIS download Bibtex download
  • Zhang , Gentile AL, blomqvist E, augenstein & ciravegna () Statistical Knowledge Patterns: Identifying Synonymous Relations in Large Linked Datasets. International Semantic Web Conference ISWC 2013. Sydney, Australia, 21 October 2013 - 25 October 2013. RIS download Bibtex download
Research group

Current PhD students

  • Amnah Alluqman: computational assistant for online-shopping for visually impaired people
  • Daisy Da Moura Semedo: text mining in online health forums
  • Omaima Fallatah: knowledge graph matching
  • Jessica Fairbairn: computational methods for predicting hate speech propagation
  • Jenny Hayes: social activisim on the social media
  • Terence Egbelo: knowledge graph completion for drug discovery
  • Zhixue Zhao: computational methods for hate speech detection

    Past PhD examinations

    • Aug 2021: Ruizhe Li , Department of Computer Science, University of Sheffield
    • Aug 2020: Jun Zhang, Informatin School, University of Sheffield
    Teaching activities

    I lead two modules:

    • INF Introduction to Data Science covers key concepts and theories related to data science
    • INF6024 Researching Social Media covers topics on research methods, data collection and analysis methods and research ethics in the context of social media research
    Professional activities
    • External examiner for the Dublin City University
    • Member of the Alan Turing Institute’s Knowledge Graph network
    • Conference track co-chairs/senior committee members for the Extended Semantic Web Conference, the European Artificial Intelligence Conference
    • Guest editor for the Semantic Web Journal, Frontiers in Clinical Diabetes and Healthcare
    • Regular reviewer for conferences such as International Conference on Knowledge Engineering and Knowledge Management (EKAW), Internatonal Semantic Web Conference (ISWC), Extended Semantic Web Conference (ESWC), The Web Conference (WWW), Conference on Information and Knowledge Management (CIKM)
    • Regular reviewer for journals such as IEEE Transactions on Knowledge and Data Engineering, ACM Transactions on Knowledge Discovery from Data, IOS The Semantic Web Journal, Elsevier Information Processing and Management