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- Annastiina Ahola, Lilli Peura, Rafael Leal, Heikki Rantala and Eero Hyvönen: Using generative AI and LLMs to enrich art collection metadata for searching, browsing, and studying art history in Digital Humanities
- Eero Hyvönen, Petri Leskinen, Henna Poikkimäki, Heikki Rantala, Jouni Tuominen, Senka Drobac, Ossi Koho, Ilona Pikkanen and Hanna-Leena Paloposki: LetterSampo Finland (1809–1917) Data Service and Portal: Searching, Exploring, and Analyzing Historical Letters and Their Underlying Networks
- Michael Lewis, Eljas Oksanen, Frida Ehrnsten, Heikki Rantala, Jouni Tuominen and Eero Hyvönen: The Impact of Human Decision-making on the Research Value of Archaeological Data
- Tomaž Erjavec, Matyáš Kopp, Nikola Ljubešić, Taja Kuzman, Paul Rayson, Petya Osenova, Maciej Ogrodniczuk, Çağrı Çöltekin, Danijel Koržinek, Katja Meden, Jure Skubic, Peter Rupnik, Tommaso Agnoloni, José Aires, Starkaður Barkarson, Roberto Bartolini, Núria Bel, María Calzada Pérez, Roberts Darģis, Sascha Diwersy, Maria Gavriilidou, Ruben van Heusden, Mikel Iruskieta, Neeme Kahusk, Anna Kryvenko, Noémi Ligeti-Nagy, Carmen Magariños, Martin Mölder, Costanza Navarretta, Kiril Simov, Lars Magne Tungland, Jouni Tuominen, John Vidler, Adina Ioana Vladu, Tanja Wissik, Väinö Yrjänäinen and and Darja Fišer: ParlaMint II: Advancing Comparable Parliamentary Corpora Across Europe
Saha - Browser Based Semantic Annotation Tool
Page updated: 11.05.2011
Saha is a browser-based annotation tool, which can be used to annotate e.g. web-pages and
other documents on the web. With Saha, annotation process can be easily distributed and it can be
used without installing any annotation software on user's computer.
Annotations are stored in a database, from which they can be retrieved for use in semantic applications, like portals using multi facet search paradigm. Saha uses semantic web technologies such as OWL and RDF(S).
Saha's user-interface consists of property-input-form, which can be easily configured for the annotation-schema being used. Different kinds of resources can be used as values of the properties:
- Resources defined in external ontologies and fetched to the annotation using the Onki Ontology Library Service
- Resources defined in other external sources, such as CultureSampo
- Instances of classes defined in the annotation-schema
- Literal values
Saha has undergone several major development versions. Demo of the current Saha (SAHA3) is available here. Please note that while browser interoperability is a design goal, some advanced features might not work properly in older versions of Internet Explorer.
Saha (SAHA3) is open source software and published in Google Code under the MIT license for open collaboration.
Basic documentation about Saha is available in the Saha Technical Report
Articles
2010
2007
2006
Contact person:
Jussi Kurki
University of Helsinki
firstname.lastname@helsinki.fi
Prof. Eero Hyvönen
Helsinki University of Technology, Laboratory of Media Technology and University of Helsinki
eero.hyvonen [at] tkk.fi
