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2篇 您的检索式:作者名="D.Prabha"
    题名 作者 年代 出处 被引量
1Understand Students Feedback Using Bi-Integrated CRF Model Based Target Extraction显示文摘Educational institutions showing interest to find the opinion of the students about their course and the instructors to enhance the teaching-learning process.For this,most research uses sentiment analysis to track students’behavior.Traditional sentence-level sentiment analysis focuses on the whole sentence sentiment.Previous studies show that the sentiments alone are not enough to observe the feeling of the students because different words express different sentiments in a sentence.There is a need to extract the targets in a given sentence which helps to find the sentiment towards those targets.Target extraction is the subtask of targeted sentiment analysis.In this paper,we proposed the innovative model to find the targets of the given sentence using Bi-Integrated Conditional Random Fields(CRF).A Parallel fusion neural network model is designed to perform this task.We evaluate the model using the Michigan dataset and we build a dataset for target extraction from student reviews.The experimental results show that our proposed fusion model achieves better results compared to baseline models.K.Sangeetha D.Prabha 2022Computer Systems Science & Engineering2022,40,2:0
2Ensemble Variable Selection for Naive Bayes to Improve Customer Behaviour Analysis显示文摘Executing customer analysis in a systemic way is one of the possible solutions for each enterprise to understand the behavior of consumer patterns in an efficient and in-depth manner.Further investigation of customer patterns helps thefirm to develop efficient decisions and in turn,helps to optimize the enter-prise’s business and maximizes consumer satisfaction correspondingly.To con-duct an effective assessment about the customers,Naive Bayes(also called Simple Bayes),a machine learning model is utilized.However,the efficacious of the simple Bayes model is utterly relying on the consumer data used,and the existence of uncertain and redundant attributes in the consumer data enables the simple Bayes model to attain the worst prediction in consumer data because of its presumption regarding the attributes applied.However,in practice,the NB pre-mise is not true in consumer data,and the analysis of these redundant attributes enables simple Bayes model to get poor prediction results.In this work,an ensem-ble attribute selection methodology is performed to overcome the problem with consumer data and to pick a steady uncorrelated attribute set to model with the NB classifier.In ensemble variable selection,two different strategies are applied:one is based upon data perturbation(or homogeneous ensemble,same feature selector is applied to a different subsamples derived from the same learning set)and the other one is based upon function perturbation(or heterogeneous ensemble different feature selector is utilized to the same learning set).Further-more,the feature set captured from both ensemble strategies is applied to NB indi-vidually and the outcome obtained is computed.Finally,the experimental outcomes show that the proposed ensemble strategies perform efficiently in choosing a steady attribute set and increasing NB classification performance efficiently.R.Siva Subramanian D.Prabha 2022Computer Systems Science & Engineering2022,41,4:0
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