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Emotion Aggregation Dataset Format

Below is an example of dataset aggregation using 3-annotators

Detecting Emotion (multi-label classification and single-label classification)

  • text_id: A unique identifier for the text sample.
  • text_content: The actual text content that needs to be classified for emotions.
  • annotator_id: A unique identifier for the annotator who provided the emotion labels for the given text sample.
  • happy, sad, anger, fear, surprise, disgust: These columns represent the emotion labels provided by the annotator. Each column contains a binary value (0 or 1) indicating the absence or presence of that particular emotion in the text sample, as perceived by the annotator. Note: A text can have multiple emotion (e.g., in the first example below, the first annotator has both happy and surprise).

Example Dataset (3- annotators)

tex_id text_content anno_id happy sad anger fear surprise disgust
1 It's a sunny day! 1 1 0 0 0 1 0
1 It's a sunny day! 2 1 0 0 0 0 0
1 It's a sunny day! 3 1 0 0 0 1 0
2 I failed the exam. 1 0 1 1 0 0 0
2 I failed the exam. 2 0 1 0 0 0 0
2 I failed the exam. 3 0 1 1 0 0 1
3 I saw the dog on monday! 1 0 0 0 0 0 0
3 I saw the dog on monday! 2 0 0 0 0 0 0
3 I saw the dog on monday! 3 0 0 0 0 0 0

In this example:

  • For the text "It's a sunny day!", one annotator labeled it as "happy" and "surprise", another labeled it as "happy", and the third labeled it as "happy" and "surprise".
  • For the text "I failed the exam.", one annotator labeled it as "sad" and "anger", another labeled it as "sad", and the third labeled it as "sad", "anger", and "disgust".
  • For the text "I saw the dog on monday!", all annotators agreed that there is no emotion expressed. It can be interepreted as "none of the emtions" or "neutral"

Data Agreegation

To aggregate the emotion labels using majority voting when there are three annotators, you can follow these steps:

For each text sample, create a separate row for each emotion category (happy, sad, anger, fear, surprise, disgust). In each row, include the text content, emotion category, and the votes (0 or 1) from each annotator for that emotion category. Calculate the majority vote for each emotion category by summing the votes from the three annotators. If the sum is greater than or equal to 2, the majority vote is 1 (indicating the presence of that emotion); otherwise, the majority vote is 0.

Aggregated Dataset Format

text_id text_content emotion annotator_1 annotator_2 annotator_3 majority_vote
1 It's a sunny day! happy 1 1 1 1
1 It's a sunny day! sad 0 0 0 0
1 It's a sunny day! anger 0 0 0 0
1 It's a sunny day! fear 0 0 0 0
1 It's a sunny day! surprise 1 0 1 1
1 It's a sunny day! disgust 0 0 0 0
2 I failed the exam. happy 0 0 0 0
2 I failed the exam. sad 1 1 1 1
2 I failed the exam. anger 1 0 1 1
2 I failed the exam. fear 0 0 0 0
2 I failed the exam. surprise 0 0 0 0
2 I failed the exam. disgust 0 0 1 0

In this format, each row represents a combination of a text sample and an emotion category. The votes from each annotator are provided, and the majority_vote column indicates the final label based on the majority vote across the three annotators. The majority_vote column is the ground truth label for our dataset.

We can use the dataset above in two settings: Single-Label Emotion Classification and Multi-Label Emotion Classification

Single-Label Emotion Classification and Multi-Label Emotion Classification

In single-label classification, we will filter the dataset to include only those instances where all three annotators agree on a single emotion class for each text. This filtered dataset will be used to analyze the presence or absence of a single emotion. Below is an example of single Emotion Classification Dataset

text_id text_content emotion annotator_1 annotator_2 annotator_3 majority_vote
1 It's a sunny day! happy 1 1 1 1
2 I failed the exam. sad 1 1 1 1

Multi-Emotion Classification Dataset

In multi-label classification, we will filter on instances where a text has more than one emotion class annotated by different annotators (majority vote). This filtered dataset will be used for multi-class emotion classification problems. Below is an example Multi-Emotion Classification Dataset

text_id text_content emotion annotator_1 annotator_2 annotator_3 majority_vote
4 I missed the bus. sad 1 1 1 1
4 I missed the bus. anger 1 1 0 1

We can see text I missed the bus has two emotions - sadness and anger.

Detecting Emotion Intensity (ordinal classification)

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