Search Results for author: Zukang Liao

Found 6 papers, 1 papers with code

Image Similarity using An Ensemble of Context-Sensitive Models

no code implementations15 Jan 2024 Zukang Liao, Min Chen

In this work, we present a novel approach for building an image similarity model based on labelled data in the form of A:R vs B:R. We address the challenges of sparse sampling in the image space (R, A, B) and biases in the models trained with context-based data by using an ensemble model.

Dimensionality Reduction

Background Invariance Testing According to Semantic Proximity

no code implementations19 Aug 2022 Zukang Liao, Pengfei Zhang, Min Chen

This ontology enables (i) efficient and meaningful search for background scenes of different semantic distances to a target image, (ii) quantitative control of the distribution and sparsity of the sampled background scenes, and (iii) quality assurance using visual representations of invariance testing results (referred to as variance matrices).

Object Recognition

ML4ML: Automated Invariance Testing for Machine Learning Models

1 code implementation27 Sep 2021 Zukang Liao, Pengfei Zhang, Min Chen

In this paper, we show that testing the invariance qualities of ML models may result in complex visual patterns that cannot be classified using simple formulas.

BIG-bench Machine Learning

Simultaneous Adversarial Training - Learn from Others Mistakes

no code implementations21 Jul 2018 Zukang Liao

Adversarial examples are maliciously tweaked images that can easily fool machine learning techniques, such as neural networks, but they are normally not visually distinguishable for human beings.

Domain Adaptation

Transfer Learning for Action Unit Recognition

no code implementations19 Jul 2018 Yen Khye Lim, Zukang Liao, Stavros Petridis, Maja Pantic

This paper presents a classifier ensemble for Facial Expression Recognition (FER) based on models derived from transfer learning.

Action Unit Detection Facial Action Unit Detection +3

Local Deep Neural Networks for Age and Gender Classification

no code implementations24 Mar 2017 Zukang Liao, Stavros Petridis, Maja Pantic

We tested the proposed modified local deep neural networks approach on the LFW and Adience databases for the task of gender and age classification.

Age And Gender Classification Age Classification +3

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