Completed

In this project, we provide efficient, parallelized inference algorithms for Allocation Model which has a close relationship with Nonnegative Matrix Factorization. NMF is the problem of writing a nonnegative matrix, X, as the multiplication two nonnegative factor matrices, W and H. Bayesian analysis of NMF models show us that (M x N) X matrix is implicitly decomposed into a hidden (M x N x K) tensor S. Allocation Model starts from this idea, and analyzes hidden tensor S more explicitly.

As the number of computer programs that need the gradient of functions increase, (such as machine learning programs that use gradient descent algorithms) efficient derivation of gradients problem has risen. Many machine learning / deep learning algorithms use derivations at each step. So the efficiency of the derivation matters a lot for those programs. There are three main ways to differentiate a function. On this project, we implemented automatic differentiation which is the most suitable one of these methods for our purpose of use.

Grocery shopping is a daily activity for most people. Not only do people buy what they need but probably also what is promoted at the time. Super markets promote some products daily, or weekly. The problem is that they promote the same products to all people. Some people might like the products whereas some might not. What is lacking is a personalized promotions so that super markets will promote products based on user’s shopping history and history of people with similar history.

Understanding the need of the infant from his/her cry is a major topic which is studied by psychologists and medical doctors at the beginning. After the technological improvement, with the help of data analysis and data processing, this topic has got a big interest and be considered in many researches. In this project, we developed an approach to find a good accuracy of recognizing and classifying a newborn's cry into 8 categories which are 'Hunger, Need of Burping, Belly Pain, Discomfort, Tiredness, Loneliness, Cold/Hot and Scared' .

In this decade, the music industry had a paradigm shift to digital distribution through online music stores and music streaming services, like Spotify, Apple Music, Amazon Music and SoundCloud. However, with the massive increase of available songs in the platforms, users of those encountered the problem of choosing suitable songs for them. Therefore, music recommendation systems became much more important to guide listeners to explore new songs suitable for their taste.