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Alva Liu's Projects

alvayliu.github.io icon alvayliu.github.io

💎 🐳 A super customizable Jekyll theme for personal site, team site, blog, project, documentation, etc.

facial-emotion-classifier-with-cnn icon facial-emotion-classifier-with-cnn

This project was done as a part of the Deep Learning course in my degree. It features a facial emotion classifier with a deep convolutional neural network.

fashion-gan icon fashion-gan

Experimenting with Generative Adversarial Networks (GAN) to generate images similar to the Fashion MNIST dataset using PyTorch.

featureit icon featureit

A collection of functions that make feature engineering simpler

language-identification-with-cnn icon language-identification-with-cnn

Spoken language identification systems (LID) allow for automatic language detection given speech data. Among the many available methods that can be applied to this classification task, modern machine learning and deep learning approaches have been reported as effective. A previous study approached the problem of spoken language identification in the image domain by transforming speech samples to spectrograms and classifying them using convolutional neural networks (CNN). We have implemented two similar types of CNNs and trained them on data for five languages from the SpeechDat database. Then, we investigated how well their performance generalised on speech samples from another source then SpeechDat. The results indicated that even though the models could achieve over 80 % in test accuracy on SpeechDat data, they did not perform well on speech samples not originating from the SpeechDat database, with the best model achieving 37.5 % accuracy.

streaming-trend-detector icon streaming-trend-detector

A program that tracks the popularity of an user-specified keyword in streaming text data. Implementation in Scala using Kafka and Spark Streaming. Real-time visualization of trends in Python with Dash. Sentiment analysis with Stanford CoreNLP

time-series-analysis-in-r icon time-series-analysis-in-r

This repository contains several smaller projects and tutorials that I've created for fun about time series analysis in R.

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