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An improved text similarity algorithm research for clinical decision support system

The paper presents an improved text similarity algorithm and applies to the Clinical Decision Support System. It can improve the efficiency of decision making. After analyzing the disadvantages of the conventional TF-IDF algorithm and Cosine Similarity calculation, we propose an improvement to the text similarity algorithm. The proposed algorithm takes into full consideration the impact of semantically-similar keywords and textually-similar keywords on text similarity, therefore achieves improved accuracy. The function of this Clinical Decision Support System is to search for relevant biomedical articles and locate solutions.