by Caterina Giannetti, Chiara Ongari, Giampiero M. Gallo, Maria Saveria Mavillonio, Stefano Borgioli
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Suggested foundations for text and language models in finance and financial machine learning. Specialist prerequisites vary by paper.
Understand how text is converted into numerical inputs.
Check whether labels measure the financial construct of interest.
Preserve time order and avoid future information in training.
Establish an interpretable baseline before a flexible model.
Test whether a text-derived signal survives an honest financial evaluation.
Measure agreement when constructing or checking labels.
Account for dependence and overlapping observations.
Choose a reproducible strategy, specify the trading rule, and test what remains after costs and estimation uncertainty.