Text2Chart: A Multi-Staged Chart Generator from Natural Language Text

• URL: http://arxiv.org/abs/2104.04584v1
• Date: Fri, 9 Apr 2021 19:42:24 GMT
• Title: Text2Chart: A Multi-Staged Chart Generator from Natural Language Text
• Abstract summary: Text2Chart takes natural language text as input and produce visualization as two-dimensional charts. It identifies the axis elements of a chart from the given text known as x and y entities. It generates a chart type suitable for the given text: bar, line or pie.
• Score: 0.3518016233072556
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Generation of scientific visualization from analytical natural language text is a challenging task. In this paper, we propose Text2Chart, a multi-staged chart generator method. Text2Chart takes natural language text as input and produce visualization as two-dimensional charts. Text2Chart approaches the problem in three stages. Firstly, it identifies the axis elements of a chart from the given text known as x and y entities. Then it finds a mapping of x-entities with its corresponding y-entities. Next, it generates a chart type suitable for the given text: bar, line or pie. Combination of these three stages is capable of generating visualization from the given analytical text. We have also constructed a dataset for this problem. Experiments show that Text2Chart achieves best performances with BERT based encodings with LSTM models in the first stage to label x and y entities, Random Forest classifier for the mapping stage and fastText embedding with LSTM for the chart type prediction. In our experiments, all the stages show satisfactory results and effectiveness considering formation of charts from analytical text, achieving a commendable overall performance.

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