Summary of the paper

Title PDFAnno: a Web-based Linguistic Annotation Tool for PDF Documents
Authors Hiroyuki Shindo, Yohei Munesada and Yuji Matsumoto
Abstract We present PDFAnno, a web-based linguistic annotation tool for PDF documents. PDF has become widespread standard for various types of publications, however, current tools for linguistic annotation mostly focus on plain-text documents. PDFAnno offers functions for various types of linguistic annotations directly on PDF, including named entity, dependency relation, and coreference chain. Furthermore, for multi-user support, it allows simultaneous visualization of multi-user's annotations on the single PDF, which is useful for checking inter-annotator agreement and resolving annotation conflicts. PDFAnno is freely available under open-source license at
Topics Tools, Systems, Applications, Information Extraction, Information Retrieval, Corpus (Creation, Annotation, Etc.)
Full paper PDFAnno: a Web-based Linguistic Annotation Tool for PDF Documents
Bibtex @InProceedings{SHINDO18.680,
  author = {Hiroyuki Shindo and Yohei Munesada and Yuji Matsumoto},
  title = "{PDFAnno: a Web-based Linguistic Annotation Tool for PDF Documents}",
  booktitle = {Proceedings of the Eleventh International Conference on Language Resources and Evaluation (LREC 2018)},
  year = {2018},
  month = {May 7-12, 2018},
  address = {Miyazaki, Japan},
  editor = {Nicoletta Calzolari (Conference chair) and Khalid Choukri and Christopher Cieri and Thierry Declerck and Sara Goggi and Koiti Hasida and Hitoshi Isahara and Bente Maegaard and Joseph Mariani and Hélène Mazo and Asuncion Moreno and Jan Odijk and Stelios Piperidis and Takenobu Tokunaga},
  publisher = {European Language Resources Association (ELRA)},
  isbn = {979-10-95546-00-9},
  language = {english}
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