Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classification-Regression for Chart Comprehension   Charts are a popular and effective form of data visualization. Chart question
answering (CQA) is a task used for assessing chart comprehension, which is
fundamentally different from understanding natural images. CQA requires
analyzing the relationships between the textual and the visual components of a
chart, in order to answer general questions or infer numerical values. Most
existing CQA datasets and it models are based on simplifying assumptions that
often enable surpassing human performance. In this work, we further explore the
reasons behind this outcome and propose a new model that jointly learns
classification and regression. Our language-vision set up with co-attention
transformers captures the complex interactions between the question and the
textual elements, which commonly exist in real-world charts. We validate these
conclusions with extensive experiments and breakdowns on the realistic PlotQA
dataset, outperforming previous approaches by a large margin, while showing
competitive performance on FigureQA. Our model's edge is particularly
emphasized on questions with out-of-vocabulary answers, many of which require
regression. We hope that this work will stimulate further research towards
solving the challenging and highly practical task of chart comprehension.

25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg