Check out Check out release 1.7 with Improved Audio Labeling


Quick Start
label studio logo

Sentiment Analysis Text Classification

Classify the sentiment of text using this template. For example, if you want to classify the sentiment of reviews of musical instruments for sale on an online retailer.

Interactive Template Preview

Labeling Configuration

<View>
  <Header value="Choose text sentiment:"/>
  <Text name="my_text" value="$reviewText"/>
  <Choices name="sentiment" toName="my_text" choice="single" showInline="true">
    <Choice value="Positive"/>
    <Choice value="Negative"/>
    <Choice value="Neutral"/>
  </Choices>
</View>

About the labeling configuration

All labeling configurations must be wrapped in View tags.

You can add a header to provide instructions to the annotator:

<Header value="Choose text sentiment:"/>

Use the Text object tag to display the text to be classified:

<Text name="my_text" value="$reviewText"/>

Use the Choices control tag to provide the classification options to annotators, allow them to only select one option, and display the choices in one line:

<Choices name="sentiment" toName="my_text" choice="single" showInline="true">
    <Choice value="Positive"/>
    <Choice value="Negative"/>
    <Choice value="Neutral"/>
</Choices>

Enhance this template

You can enhance this template in many ways.

Perform multi-classification

You can use styling to visually separate different classification options to provide annotators a multi-classification task for text.

For example, wrap the individual choice options for a single Choices control tag in View tags that adjust the styling:

<Choices name="sentiment" toName="text" choice="multiple">
  <View style="display: flex; justify-content: space-between">
    <View style="width: 50%">
      <Header value="Select Topics" />
      <Choice value="Politics"/>
  	<Choice value="Business"/>
  	<Choice value="Sport"/>
    </View>
    <View>
      <Header value="Select Moods" />
      <Choice value="Cheerful"/>
  	<Choice value="Melancholy"/>
  	<Choice value="Romantic"/>
    </View>
  </View>
</Choices>

Add Header tags to each section to visually separate the choices on the interface, while still storing all choices with the text sample in the annotations.

Combine multiple types of labeling in three columns

You can also perform other types of labeling in addition to text classification as part of one labeling task. In this example, you can create a three column view on the labeling interface, with the text sample to annotate in the center column and classification choices and named entity recognition labels in the other columns. Because tags in a labeling configuration are rendered in order, the order of the elements specifies which column each content appears within.

Start by adding styling to the View tag for the labeling configuration to flex the display:

<View style="display: flex;">

Then use styling with a new View tag to create a column for the named entity recognition labels:

<View style="width: 150px; padding: 0 1em; margin-right: 0.5em; background: #f1f1f1; border-radius: 3px">    
  <Labels name="label" toName="text">
    <Label value="Person" />
    <Label value="Organization" />
  </Labels>
</View>

Specify the Text object tag in another set of View tags to place it in the center column. 

<View>
  <Text name="text" value="$text" />
</View>

Then create a third column with a View tag to display the available Choices for classification, including a Header to provide guidance to annotators:

<View style="padding: 0 1em; margin-left: 0.5em; background: #f1f1f1; border-radius: 3px">
  <Choices name="importance" toName="text">
    <Header value="Text Importance" />
    <Choice value="High" />
    <Choice value="Medium" />
    <Choice value="Low" />
  </Choices>
</View>

Don’t forget to close the original View tag:

</View>
Couldn't find what you were looking for? Please let us know on Slack 
If you found an error, you can file an issue on GitHub!