SVM for predicting buy/sell of Reliance Stock

Comparing different SVM Kernels, specifically the linear kernel, polynomial kernel, and the Radial Basis Function Kernel, in their effectiveness when applied to predict buy/sell of Reliance Stock. A much detailed approach can be found on the accompanying Medium article

Model details

Featuresets: various technical indicators for Reliance Stock Labels: - Buy/Sell - Buy - if price is predicted to rise - Sell - of price is predicted to drop

Results (Accuracy)

• Linear kernel: 51.43%
• Polynomial Kernel: 53.15%
• Radial Basis Function Kernel: 52.00%
• Random Model Accuracy : 33%

Interesting aspects for improvement:

• Effects of feature standardization on SVMs
• Predictability of certain technical indicators, can be studied using Hypothesis Testing
• Use Sentiment Analysis and news on Reliance Stock/Stocks in your portfolio.
• Use more number of technical indicators(since SVM works well with high-dimensional data, you can easily add more features without worrying much about the curse of dimensionality).
• Apply the same on a diversified portfolio of stocks rather than a single stock.
• Find a domain-specific kernel, which can give the performance a significant boost, i.e., a kernel which works well for finance/time-series data, this needs some research.
• Fine-tune the existing SVM Architecture (use RandomSearch rather than GridSearch to make life easier)
• Interpret your model with model agnostic techniques (such as LIME)to understand any bias(if it exists) and understand which feature is contributing more to your prediction.
• Use more data(even more than 10 years of data) to obtain much better results, which of course comes at the cost of more time required to train the SVM.
• Try other classifiers, such as KNN, which can be quite similar to RBF-based SVM to see if there is any improvement in the performance.