ISA-21 is the 21st Joint ACL - ISO Workshop on Interoperable Semantic Annotation. ISA workshops bring together researchers who produce or consume annotations of semantic information as expresses in text, speech, gestures, graphics, video, images, and in communicative behaviour in which multiple modalities are used. The workshops provide a forum for researchers to identify and discuss challenges in semantic information, effective for both human and computational understanding, and to critically examine and compare innovative and existing approaches and frameworks. For more information see the ISA-21 website: https://sigsem.uvt.nl/isa21/

Submission Guidelines

All papers must be original and not simultaneously submitted to another journal or conference. All submissions should be marked acoording to their category (long or short ressearch paper, or project note). These categories are distinguished as follows:

• Research papers describe original research in the area of semantic annotation; these can be either long (6-8 pages plus references and appendices) or short (3-4 papers plus references)
• Project notes describe recent, ongoing or planned projects involving semantic annotation (2-4 pages including reeferences). 

Topics

• methodological aspects of semantic annotation
• design and evaluation of annotation schemes
• innovative methods for manual, automated and semi-automated annotation
• integration of semantic annotation and other linguistic annotation
• combining annotations of distinct semantic phenomena
• multi-layered annotations and representations
• levels of granularity in annotations
• use of context in approaches to semantic annotation
• semantic annotation, representation, and interpretation
• uncertainty and ambiguity in semantic annotations
• comparison of annotation schemes
• semantic annotation, lexical semantics, and ontologies
• metrics for evaluating semantic annotations
• qualitative and quantitative evaluation of semantic annotations
• experiments in semantic annotation
• applications of semantic annotations
• standards for semantic annotation
• language- or application-specific aspects of semantic annotation
• best practices for semantic annotation efforts
• annotations that capture semantic information in images and video

Contact

All questions about submissions should be emailed to harry.bunt@tilburguniversity.edu