Jasper Brandes


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Effect Functors for Opinion Inference
Josef Ruppenhofer | Jasper Brandes
Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16)

Sentiment analysis has so far focused on the detection of explicit opinions. However, of late implicit opinions have received broader attention, the key idea being that the evaluation of an event type by a speaker depends on how the participants in the event are valued and how the event itself affects the participants. We present an annotation scheme for adding relevant information, couched in terms of so-called effect functors, to German lexical items. Our scheme synthesizes and extends previous proposals. We report on an inter-annotator agreement study. We also present results of a crowdsourcing experiment to test the utility of some known and some new functors for opinion inference where, unlike in previous work, subjects are asked to reason from event evaluation to participant evaluation.


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Ordering adverbs by their scaling effect on adjective intensity
Josef Ruppenhofer | Jasper Brandes | Petra Steiner | Michael Wiegand
Proceedings of the International Conference Recent Advances in Natural Language Processing

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Extending effect annotation with lexical decomposition
Josef Ruppenhofer | Jasper Brandes
Proceedings of the 6th Workshop on Computational Approaches to Subjectivity, Sentiment and Social Media Analysis


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Comparing methods for deriving intensity scores for adjectives
Josef Ruppenhofer | Michael Wiegand | Jasper Brandes
Proceedings of the 14th Conference of the European Chapter of the Association for Computational Linguistics, volume 2: Short Papers