scispace - formally typeset
Search or ask a question

What is the best way to select the parameters for a SVM sentiment classifier? 


Best insight from top research papers

The best way to select parameters for a SVM sentiment classifier is to use the genetic algorithm to optimize the SVM model . The genetic algorithm is an optimization algorithm that can be used to select the optimal support vector subset and optimize the SVM parameters. This method has been shown to significantly improve sentiment classification compared to traditional SVM modeling capabilities . Additionally, feature selection methods such as content and syntax models can be used to automatically learn a set of features in a review document and remove entities being reviewed from subjective expressions . The selection of classification algorithms, feature selection methods, and feature dimensions can also be determined through experiments .

Answers from top 5 papers

More filters
Papers (5)Insight
The paper does not provide information on the best way to select parameters for a SVM sentiment classifier. The paper focuses on comparing classification methods using feature selection for smartphone sentiment analysis.
The paper does not provide information on the best way to select parameters for a SVM sentiment classifier. The paper is about comparing classification methods using feature selection for smartphone sentiment analysis.
Proceedings ArticleDOI
Fang Luo, Cheng Li, Zehui Cao 
04 May 2016
59 Citations
The paper does not provide information on the best way to select parameters for a SVM sentiment classifier.
The paper proposes using a genetic algorithm to optimize the parameters for a SVM sentiment classifier.
The paper does not provide information on the best way to select parameters for a SVM sentiment classifier.

Related Questions

What is the best SVM text classification feature extractor?5 answersThe best SVM text classification feature extractor depends on the specific application and dataset. In the research conducted on sentiment analysis of tweets, various feature extraction methods were compared. On the other hand, in the field of speech recognition, combining feature extraction methods such as GFCC and LFCC resulted in high accuracy levels, especially when optimized with PCA. Additionally, a study comparing word2vec and TF-IDF for text classification found that word2vec with KNN algorithm achieved high accuracy with fewer features compared to TF-IDF. Therefore, the choice of the best SVM text classification feature extractor should consider the specific data characteristics and the desired outcome, whether it be sentiment analysis, speech recognition, or general text classification tasks.
How to find best parameters in SVR?5 answersThe best parameters for Support Vector Regression (SVR) can be found using various techniques. One commonly used approach is grid search, which involves exhaustively searching through a range of parameter values. However, this method can be time-consuming, especially for large datasets. To address this issue, several improved algorithms have been proposed. One such algorithm reduces the number of cross-validation tests by calculating the penalty factor using an empirical formula and then using a grid search algorithm to find the best kernel parameter and non-sensitive coefficient. Another approach involves using sinusoidal excitation signals and a kernel space feature called inter-cluster distance (ICD) to determine a more effective searching range for the kernel parameter. Additionally, orthogonal array and variable selection methods based on the Taguchi method have been proposed to decrease the computational time required for parameter tuning. These methods have been shown to significantly reduce training time while maintaining prediction accuracy.
How can we improve the training speed of SVMs for sentiment analysis?5 answersTo improve the training speed of SVMs for sentiment analysis, one approach is to reduce the size of the training set. This can be achieved by leveraging contextual features from unlabeled movie and restaurant reviews with a neural-network-based learning model, such as the Ladder network. Another method is to combine multiple lexicons and filter out the corpus using these lexicons before forwarding it to the classifiers. This approach has shown to improve the accuracy of the classifiers. Additionally, using a self-supervised learning model, such as the masked language model (MLM), to calculate word weights and simultaneously execute fine-tuning tasks can also enhance sentiment analysis performance with a small amount of training data.
What are the effective parameters for SVM sentiment analysis?2 answersEffective parameters for SVM sentiment analysis include the choice of feature extraction method and the tuning of SVM parameters. Feature extraction methods such as Distributed bag of words, Distributed memory mean, Distributed Memory Concatenation, and Term Frequency-Inverse Document Frequency models can be used to extract features from pre-processed tweets. Tuning SVM parameters using optimization algorithms like the Shark smell optimizer (SSO) can significantly impact the model accuracy. Additionally, the choice of kernel function in SVM, such as nonparallel SVM (NPSVM), twin SVM (TWSVM), linear kernel, polynomial kernel, or radial basis function (RBF) kernel, can also affect the accuracy and stability of sentiment analysis.
What are the limitations of SVM for long text sentiment analysis?5 answersSVM has limitations for long text sentiment analysis. One limitation is its slow performance when dealing with big data arrays. Another limitation is that SVM sacrifices the distribution of data, which can result in a deficiency of accuracy and stability when applied to sentiment analysis of big and mazy sentiment data. Additionally, many sentiment analysis frameworks based on SVM have low accuracy on textual data corpus containing emoticons and special texts. These frameworks are also energy and computation intensive, which limits their real-time deployment.
How to perform SVM?6 answers