Projects

Projects Projects | Nisha Selvarajan

Projects Projects | Nisha Selvarajan

AWS Rekognition and Java to Identify Objects / Text in Images

Amazon Rekognition is an Amazon Web Service (AWS) that provides image and video analysis services. You can provide an image or video and the service will detect objects, people and scenes. The purpose of Rekognition is to analyze images and predict what objects are in the image, if there are any faces, transcribe text, and other tasks.In this post, we can see the demo of AWS Rekognition which using both custom model & predefined models. Click here for detailed post.

Deep Learning for NLP: Twitter Sentimental Analysis in Python

Obtaining feedback from a few of the customers is easy. However, imagine that you could ask the whole world! You would know immediately the general opinion and could react accordingly. This machine learning solution examines twitter data for their tonality. The classification, whether a tweet is positive or negative, i.e. the tonality, is done by a deep neural network. The deep convolutional neural network architecture we constructed in this project,is a feedforward neural net using the TensorFlow library in Python. The neural network classifies tweet vectors in negative or positive using the Bag of Words model,ReLU activation function and softmax activation function, which will classify the tweet to either positive or negative.Click here for code and detailed report.

Real Time Stock Market Prediction - Neural Network, ARIMA, RandomForest, SVM, DecisionTree

According to the forecast of stock price trends, investors trade stocks. In recent years, many researchers focus on adopting machine learning (ML) algorithms to predict stock price trends. In this work, Artificial Neural Network /ARIMA / Random Forest / SVM/ Decision Tree techniques have been utilized for predicting the next day closing price for companies in real time.To achieve this goal, we trained traditional machine learning algorithms and created/trained multiple deep learning models taking into consideration the importance of the stock indicators & historical data. Click here for detailed post.

R - Apriori - Online Buying Behavior

Ability to recognize and track frequent item sets in data help businesses shift through the layers of seemingly unrelated data for meaningful relationships. Apriori algorithm is one of the most popular data mining approach for finding frequent item sets from a transaction dataset and derive association rules. Rules are the discovered knowledge from the data base. Once frequent item sets are obtained,it is straightforward to generate association rules with confidence larger than or equal to a user specified minimum confidence.In this post we can explore how to find association rules and formulate some predictions for the online store. Click here for detailed post.

R - Neural Network & SVM - Predict Success Of Bank Telemarketing

The shift towards decision making (DM) based on machine learning techniques techniques will change the way in which consumer markets and our societies function. Through ML, predictive analytics is being used by businesses to identify these patterns and major trends with the objective to improve the DM and influence future business outcomes. This project proposes an Neural Network (ANN)/ SVM approach to predict the success of telemarketing calls for selling bank long-term deposits. To validate the proposed model, we uses the bank marketing data of 41188 phone calls. The NN attains 90% of accuracy which outperforms other conventional classifiers and confirms that it is credible and valuable approach for telemarketing campaign managers. Click here for code and detailed report.

R - Naive Bayes - Validating Yelp Food Establishment Ratings based on Reviews.

We are living in a review-obsessed culture and, when we are looking for a place have lunch or have dinner, it has now become a common reflex to check online ratings before making a final call.It is obvious that a restaurant with poor rating will probably face serious business issues and maybe have to stop its activity. By building Rating Prediction which will relate text based feedback to a star rating, we can help these restaurants understand how they would rate on Yelp .Our approach is to use Naive Bayes classifier and build a text classifier which predicts the number of stars given by the user based on the review text. Click here for code and detailed report.

R - KNN - Predicting Song Popularity using Spotify Dataset

Why Do Some Songs Become Popular? DJ Khaled boldly claimed to always know when a song will be a hit. We decided to further investigate by asking three key questions: Are there certain characteristics for hit songs, what are the largest influencers on a song’s success, and can old songs even predict the popularity of new songs? Predicting how popular a song will be no easy task. To answer these questions, we made use of the Spotify song dataset, and used KNN machine learning to build a model with 85% accuracy. Click here for code and detailed report.

Analysing Cryptocurrency Market- Linear, Polynominal, Spline, GAM, Cubic Regression & Extreme Gradient Boosting

Cryptocurrencies are becoming increasingly relevant in the financial world and can be considered as an emerging market.By analyzing bit coin historical features, such as bitcoin tradevolume, bitcoin blockssize, bitcoin difficultyto find a new block,total value of coinbase block rewards , transaction fees paid to miners, we can predict the variation and can predict the ups and downsof bitcoin price . In this post, we propose the usage of common machine learning algorithms like Linear, Polynominal, Spline, GAM, Cubic Regression & Extreme Gradient Boosting for predicting the price movement of the Bitcoin. Click here for detailed post.

Python - ML - Predicting video game hits

Hundreds of new games launch every month. Yet only a fraction of makes their way to the top. If you ever wondered what makes a video game a bestseller, now you have a full overview of factors that make its breakout success. In this project, I will analyze sales data from 8K video games, identify variables most correlated to hits (games which sell over 1M units) and implement a prediction model using machine learning algorithms to separate winners from losers. Click here for code and detailed report.