Abstract
With the rise of e-commerce, online consumer reviews have become crucial for consumers’ purchasing decisions. Most of the existing research focuses on the detection of explicit features and sentiments in such reviews, thereby ignoring all that is reviewed implicitly. This study builds, in extension of an existing implicit feature algorithm that can only assign one implicit feature to each sentence, a classifier that predicts the presence of multiple implicit features in sentences. The classifier makes its prediction based on a score function and is trained by means of a threshold. Only if this score exceeds the threshold, we allow for the detection of multiple implicit feature. In this way, we increase the recall while limiting the decrease in precision. In the more realistic scenario, the classifier-based approach improves the \(F_1\)-score by 1.6 % points on a restaurant review data set.
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The authors are partially supported by the Dutch national program COMMIT.
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Dosoula, N., Griep, R., den Ridder, R., Slangen, R., Schouten, K., Frasincar, F. (2016). Detection of Multiple Implicit Features per Sentence in Consumer Review Data. In: Arnicans, G., Arnicane, V., Borzovs, J., Niedrite, L. (eds) Databases and Information Systems. DB&IS 2016. Communications in Computer and Information Science, vol 615. Springer, Cham. https://doi.org/10.1007/978-3-319-40180-5_20
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DOI: https://doi.org/10.1007/978-3-319-40180-5_20
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