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Text Algorithms in Economics
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DOI：10.1146/annurev-economics-082222-074352.png)
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摘要
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This article provides an overview of the methods used for algorithmic text analysis in economics, with a focus on three key contributions. First, we introduce methods for representing documents as high-dimensional count vectors over vocabulary terms, for representing words as vectors, and for representing word sequences as embedding vectors. Second, we define four core empirical tasks that encompass most text-as-data research in economics and enumerate the various approaches that have been taken so far to accomplish these tasks. Finally, we flag limitations in the current literature, with a focus on the challenge of validating algorithmic output.
Keyword:
text as data
topic models
word embeddings
large language models
transformer models
期刊
IF:
11.4
论文数:
356
被引数:
4.5K
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