Presentation on theme: "Belfast Naturalistic Database"— Presentation transcript:
1 Belfast Naturalistic Database LeadersEllen Douglas-Cowie and Edelle McMahon
2 Some factual information about BND AudiovisualNaturalistic/real life127 speakers298 ‘ emotional clips’1 relatively neutral + at least 1 emotional stateClips span secs and are contextualisedExtracted from television chat shows, recording sessions with friendsDistribution of clips across wide emotional space – active, passive, positive, negativeLabelled for emotion using Feeltrace + categorical systemASSESS applied to speech
3 Core Aims of DatabaseTo be the first large audiovisual naturalistic database of emotionTo collect examples of ‘bounded emotions’ – states that contrast with normal mainly rational stateTo seek out the most emotionally intense examples, with the expectation of finding discrete, ‘pure’ emotionsTo cover a wide range of emotions
4 Aims versus the reality Emotion in real life is not always bounded, or discrete or pureEmotion can be pervasive rather than discrete, and actions and interactions can be emotionally ‘coloured’ in quite complex waysSigns of emotion not always what we had expectedIn 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 practicalTo show how emotion in real life goes beyond our original stereotypes of bounded emotionsTo highlight the practical problems of using ‘real’ data for machine trainingTo 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 BNDDemonstration/Exercise 2 (Individual work followed by group discussion)Examples which show the problems in identifying the emotion in real life dataDemonstration/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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