Complexity

Research Article

Anticipating Stock Market of the Renowned Companies: A Knowledge Graph Approach

Table 1

A review of financial expert system. ANN, NB, KNN, SVM, DT and SVR stand for artificial neural network, naive Bayes, k nearest neighbors, support vector machine, decision tree, and support vector regression, respectively. Measure metrics: mean squared error (MSE); root mean square error (RMSE); area under the curve (AUC).
PaperText type Feature extractionModel typePerformance measure
[13]Professional newspaperStock dataNBAccuracy
[14]Professional newspaperStock dataSVMAccuracy
[15]Message boardStock dataRegressionCorrelation coefficient
[16]PRNewswireStock dataKNN, SVMAccuracy, F1-score
[17]Aggregate newsStock data,
bag-of-words		SVRMSE, accuracy
[18]Corporate disclosuresStock data,
bag-of-words		MultipleAccuracy, recall, precision, F1-score
[19]Financial newsStock data,
sentiment		DTAccuracy, recall, precision, F1-score
[20]Web mediaStock data,
bag-of-words.		SVRAccuracy, recall, precision, F1-score
[21]Mixed typeStock data,
bag-of-words
sentiment,		SVRRMSE, accuracy, precision
[22]Message boardStock data,
sentiment		SVMAccuracy
[23]Mixed typeStock data,
technical indicators,
sentiment		ANN, SVM, DTAccuracy, AUC, F1-score, precision
[24]NoneStock dataRegressionCorrelation coefficient
[25]Media newsStock dataRegressionCorrelation coefficient
Our financial expert systemFinancial newsStock data,
technical indicators,
bag-of-words,
syntax		MultipleAccuracy, F1-score