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Текстова регресия×TF-IDF×
ОбластИзвличане на текстИзвличане на текст
СемействоProcess / pipelineProcess / pipeline
Година на възникване1988
СъздателSalton & Buckley
ТипSupervised regression on text featuresText vectorization / term-weighting scheme
Основополагащ източникGentzkow, M., Kelly, B. & Taddy, M. (2019). Text as Data. Journal of Economic Literature, 57(3), 535-574. DOI ↗Salton, G. & Buckley, C. (1988). Term-weighting approaches in automatic text retrieval. Information Processing & Management, 24(5), 513-523. DOI ↗
Други названияtext-as-data regression, predicting numeric outcomes from text, Metin Tabanlı Regresyonterm weighting, tf-idf weighting, TF-IDF Vektörizasyonu
Свързани43
РезюмеText-based regression predicts a continuous target variable using features extracted from text — TF-IDF scores, embeddings, or n-grams — as the independent variables. Building on the text-as-data programme consolidated by Gentzkow, Kelly and Taddy (2019), it lets a numeric outcome such as a price, a rating, or a sentiment score be estimated directly from documents, and is widely used in social-science, economics, and finance applications.TF-IDF, introduced by Salton and Buckley (1988), is a term-weighting scheme that scores each word in a document by how often it appears there and how rare it is across the whole collection. It turns raw text into weighted document vectors, giving high weight to terms that are frequent in one document but uncommon elsewhere.
ScholarGateНабор от данни
  1. v1
  2. 2 Източници
  3. PUBLISHED
  1. v1
  2. 1 Източници
  3. PUBLISHED

Към търсенето Изтегляне на слайдове

ScholarGateСравнение на методи: Text Regression · TF-IDF. Извлечено на 2026-06-17 от https://scholargate.app/bg/compare