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Belfast Naturalistic Database

Belfast Naturalistic Database. Leaders Ellen Douglas-Cowie and Edelle McMahon. Some factual information about BND. Audiovisual Naturalistic/real life 127 speakers 298 ‘ emotional clips’ 1 relatively neutral + at least 1 emotional state Clips span 10-60 secs and are contextualised

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Belfast Naturalistic Database

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  1. Belfast Naturalistic Database Leaders Ellen Douglas-Cowie and Edelle McMahon

  2. Some factual information about BND • Audiovisual • Naturalistic/real life • 127 speakers • 298 ‘ emotional clips’ • 1 relatively neutral + at least 1 emotional state • Clips span 10-60 secs and are contextualised • Extracted from television chat shows, recording sessions with friends • Distribution of clips across wide emotional space – active, passive, positive, negative • Labelled for emotion using Feeltrace + categorical system • ASSESS applied to speech

  3. Core Aims of Database • To be the first large audiovisual naturalistic database of emotion • To collect examples of ‘bounded emotions’ – states that contrast with normal mainly rational state • To seek out the most emotionally intense examples, with the expectation of finding discrete, ‘pure’ emotions • To cover a wide range of emotions

  4. Aims versus the reality • Emotion in real life is not always bounded, or discrete or pure • Emotion can be pervasive rather than discrete, and actions and interactions can be emotionally ‘coloured’ in quite complex ways • Signs of emotion not always what we had expected • In practical terms naturalistic data is messy as a basis for machine training – overlapping voices, extreme movement, hiding of face, background noise etc

  5. Aims of practical • To show how emotion in real life goes beyond our original stereotypes of bounded emotions • To highlight the practical problems of using ‘real’ data for machine training • To use the naturalistic database as a basis for thinking about frameworks for the collection and description of emotion

  6. Format of practical • Demonstration/Exercise 1 (Group work) Examples of the range and form of emotion in real life as provided by the BND • Demonstration/Exercise 2 (Individual work followed by group discussion) Examples which show the problems in identifying the emotion in real life data • Demonstration/Exercise 3 (Individual work followed by group discussion) The nature of emotion from different sources: stimulus present, recall, semi performance, acted

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