Federated learning is a distributed machine learning technique that aggregates every client model on the server side. There can be various types of attacks to destroy the robustness of this learning system. Model poisoning attack is realized after the training is finished. In this project, we will use a recently developed method* for analyzing the effect of model poisoning attack that might occur during training.
Federated learning is a distributed machine learning technique that aggregates every client model on the server side. There can be various types of attacks to destroy the robustness of this learning system. A recent study* introduces a low-cost approach for the server to detect these malicious models by coordinate-based statistical comparison. In this project, we will extend this method for detecting model poisoning attacks both on the clients and on the server.
We frequently perform multiple activities simultaneously in daily life, such as drinking coffee while walking or conversing with a friend while standing. When the traditional single-label output is preferred for activity recognition with wearable sensor data, this requires multiple classes with many possibilities for concurrent activities, such as creating a class for "drinking coffee while walking" and another class for "talking while walking". Instead, this study will investigate a multi-label output system to provide information about which activities are performed together.
Motion sensor data consists of time-series signals. With the increasing popularity in the computer vision domain, the idea of representing time series as 2d images is gaining attention and providing promising results. However, there are different methods to encode time series as images, and each may perform differently on different datasets. This project will investigate the impact of using different "encoding time series as image" methods with different parameter settings.
Wearable devices can capture multimodal data corresponding to a person’s activity, stress, and sleep information to measure and improve health and well-being. Besides device measurement, there are also survey data as another information-gathering methodology. These can be related to gold standard questionnaires for sleep and st. Also, it may include some subjective assessments related to health satisfaction, overall health, happiness, diet, etc. In this project, the aim is to apply state-of-the-art deep learning techniques such as CNN, GNN and LSTM.
Wearable devices can capture multimodal data corresponding to a person’s activity, stress, and sleep information to measure and improve health and well-being. Besides device measurement, there are also survey data as another information-gathering methodology. These can be related to gold standard questionnaires for sleep and st. Also, it may include some subjective assessments related to health satisfaction, overall health, happiness, diet, etc. In this project, the aim is to apply state-of-the-art deep learning techniques such as CNN, LSTM and GNN.