We present a parallel wikified data set of parallel texts in eleven language pairs from the educational domain. English sentences are lined up to sentences in eleven other languages (BG, CS, DE, EL, HR, IT, NL, PL, PT, RU, ZH) where names and noun phrases (entities) are manually annotated and linked to their respective Wikipedia pages. For every linked entity in English, the corresponding term or phrase in the target language is also marked and linked to its Wikipedia page in that language. The annotation process was performed via crowdsourcing. In this paper we present the task, annotation process, the encountered difficulties with crowdsourcing for complex annotation, and the data set in more detail. We demonstrate the usage of the data set for Wikification evaluation. This data set is valuable as it constitutes a rich resource consisting of annotated data of English text linked to translations in eleven languages including several languages such as Bulgarian and Greek for which not many LT resources are available.
Hendrickx, I., Takoulidou, E., Naskos, T., Kermanidis, K. L., Sosoni, V., De Vos, H., … Van Den Bosch, A. (2019). A multilingual wikified data set of educational material. In LREC 2018 - 11th International Conference on Language Resources and Evaluation (pp. 467–473). European Language Resources Association (ELRA).
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