Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Developing a Data-Driven Categorical Taxonomy of Emotional Expressions
  in Real World Human Robot Interactions   Emotions are reactions that can be expressed through a variety of social
signals. For example, anger can be expressed through a scowl, narrowed eyes, a
long stare, or many other expressions. This complexity is problematic when
attempting to recognize a human's expression in a human-robot interaction:
categorical emotion models used in HRI typically use only a few prototypical
classes, and do not cover the wide array of expressions in the wild. We propose
a data-driven method towards increasing the number of known emotion classes
present in human-robot interactions, to 28 classes or more. The method includes
the use of automatic segmentation of video streams into short (<10s) videos,
and annotation using the large set of widely-understood emojis as categories.
In this work, we showcase our initial results using a large in-the-wild HRI
dataset (UE-HRI), with 61 clips randomly sampled from the dataset, labeled with
28 different emojis. In particular, our results showed that the "skeptical"
emoji was a common expression in our dataset, which is not often considered in
typical emotion taxonomies. This is the first step in developing a rich
taxonomy of emotional expressions that can be used in the future as labels for
training machine learning models, towards more accurate perception of humans by
robots.

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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: math
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: funct-an