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Table 3 Example distribution of the training set (train), validation set (valid), and testing set (test) from the dataset set of news articles

From: DAViS: a unified solution for data collection, analyzation, and visualization in real-time stock market prediction

Dataset Portion (%) Begin date End date Data points
Train 80 Feb, 2015 Jun, 2017 20,466
Test 10 Jun, 2017 Oct, 2017 2549
Valid 10 Oct, 2017 Feb, 2018 2577