Learning deep news sentiment representations for macro-finance

Axel Groß-Klußmann ()
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Axel Groß-Klußmann: Quoniam Asset Management GmbH

Digital Finance, 2024, vol. 6, issue 3, No 1, 377 pages

Abstract: Abstract This paper introduces custom neural network techniques to the problem of latent economic factor extraction for voluminous news analytics data. In the context of macro-financial news, we derive low-dimensional representations of time series that arise in textual sentiment analyses spanning various topics. We explore three applications for compressed news sentiment data: nowcasting GDP growth, explaining asset class returns in a panel data analysis, and time series momentum investment. Our empirical study shows that nonlinear data representations based on supervised autoencoder architectures compare favorably to alternatives across all applications. In specific, we demonstrate that augmenting autoencoders with supervision tasks based on common asset class returns and market characteristics disciplines the dimension reduction and naturally supports the transparency of resulting representations. Taken together, our findings position supervised autoencoders as attractive competitor models alongside PCA and PLS approaches.

Keywords: Neural networks; Sentiment analysis; Semi-structured data; Dimension reduction; Latent factor extraction; High-frequency macro-data (search for similar items in EconPapers)
JEL-codes: C38 C45 C55 C58 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s42521-024-00107-2

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