Search Results for author: Thu Nguyen

Found 20 papers, 10 papers with code

How Human-Centered Explainable AI Interface Are Designed and Evaluated: A Systematic Survey

no code implementations21 Mar 2024 Thu Nguyen, Alessandro Canossa, Jichen Zhu

Despite its technological breakthroughs, eXplainable Artificial Intelligence (XAI) research has limited success in producing the {\em effective explanations} needed by users.

Explainable artificial intelligence Explainable Artificial Intelligence (XAI)

Imputation using training labels and classification via label imputation

1 code implementation28 Nov 2023 Thu Nguyen, Tuan L. Vo, Pål Halvorsen, Michael A. Riegler

However, even though the label is usually available in the training data, the common practice of imputation usually only relies on the input and ignores the label.

Classification Imputation +1

Correlation visualization under missing values: a comparison between imputation and direct parameter estimation methods

no code implementations10 May 2023 Nhat-Hao Pham, Khanh-Linh Vo, Mai Anh Vu, Thu Nguyen, Michael A. Riegler, Pål Halvorsen, Binh T. Nguyen

Correlation matrix visualization is essential for understanding the relationships between variables in a dataset, but missing data can pose a significant challenge in estimating correlation coefficients.

Imputation

Blockwise Principal Component Analysis for monotone missing data imputation and dimensionality reduction

no code implementations10 May 2023 Tu T. Do, Mai Anh Vu, Tuan L. Vo, Hoang Thien Ly, Thu Nguyen, Steven A. Hicks, Michael A. Riegler, Pål Halvorsen, Binh T. Nguyen

To address this issue, we propose a Blockwise principal component analysis Imputation (BPI) framework for dimensionality reduction and imputation of monotone missing data.

Dimensionality Reduction Imputation

VISEM-Tracking, a human spermatozoa tracking dataset

1 code implementation6 Dec 2022 Vajira Thambawita, Steven A. Hicks, Andrea M. Storås, Thu Nguyen, Jorunn M. Andersen, Oliwia Witczak, Trine B. Haugen, Hugo L. Hammer, Pål Halvorsen, Michael A. Riegler

A manual assessment of sperm motility requires microscopy observation, which is challenging due to the fast-moving spermatozoa in the field of view.

Combining datasets to increase the number of samples and improve model fitting

1 code implementation11 Oct 2022 Thu Nguyen, Rabindra Khadka, Nhan Phan, Anis Yazidi, Pål Halvorsen, Michael A. Riegler

For many use cases, combining information from different datasets can be of interest to improve a machine learning model's performance, especially when the number of samples from at least one of the datasets is small.

Imputation Time Series Analysis +1

Unequal Covariance Awareness for Fisher Discriminant Analysis and Its Variants in Classification

1 code implementation26 May 2022 Thu Nguyen, Quang M. Le, Son N. T. Tu, Binh T. Nguyen

Fisher Discriminant Analysis (FDA) is one of the essential tools for feature extraction and classification.

Classification

Parallel feature selection based on the trace ratio criterion

no code implementations3 Mar 2022 Thu Nguyen, Thanh Nhan Phan, Van Nhuong Nguyen, Thanh Binh Nguyen, Pål Halvorsen, Michael Riegler

The experiments show that our method can produce a small set of features in a fraction of the amount of time by the other methods under comparison.

feature selection Management

FinNet: Solving Time-Independent Differential Equations with Finite Difference Neural Network

1 code implementation18 Feb 2022 Son N. T. Tu, Thu Nguyen

Deep learning approaches for partial differential equations (PDEs) have received much attention in recent years due to their mesh-freeness and computational efficiency.

Computational Efficiency

DPER: Efficient Parameter Estimation for Randomly Missing Data

1 code implementation6 Jun 2021 Thu Nguyen, Khoi Minh Nguyen-Duy, Duy Ho Minh Nguyen, Binh T. Nguyen, Bruce Alan Wade

The missing data problem has been broadly studied in the last few decades and has various applications in different areas such as statistics or bioinformatics.

Imputation

COVID-19 and Big Data: Multi-faceted Analysis for Spatio-temporal Understanding of the Pandemic with Social Media Conversations

no code implementations22 Apr 2021 Shayan Fazeli, Davina Zamanzadeh, Anaelia Ovalle, Thu Nguyen, Gilbert Gee, Majid Sarrafzadeh

We provide a multi-faceted analysis of critical properties exhibited by these conversations on social media regarding the novel coronavirus pandemic.

Learning To Count Everything

1 code implementation CVPR 2021 Viresh Ranjan, Udbhav Sharma, Thu Nguyen, Minh Hoai

We also present a novel adaptation strategy to adapt our network to any novel visual category at test time, using only a few exemplar objects from the novel category.

Object Counting

EPEM: Efficient Parameter Estimation for Multiple Class Monotone Missing Data

1 code implementation23 Sep 2020 Thu Nguyen, Duy H. M. Nguyen, Huy Nguyen, Binh T. Nguyen, Bruce A. Wade

The problem of monotone missing data has been broadly studied during the last two decades and has many applications in different fields such as bioinformatics or statistics.

Imputation

Faster feature selection with a Dropping Forward-Backward algorithm

no code implementations17 Oct 2019 Thu Nguyen

In this era of big data, feature selection techniques, which have long been proven to simplify the model, makes the model more comprehensible, speed up the process of learning, have become more and more important.

feature selection

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