Search Results for author: Chih-Hui Ho

Found 14 papers, 5 papers with code

Long-Tailed Anomaly Detection with Learnable Class Names

no code implementations29 Mar 2024 Chih-Hui Ho, Kuan-Chuan Peng, Nuno Vasconcelos

Phase 2 then learns the parameters of the reconstruction and classification modules of LTAD.

Anomaly Detection

ProTeCt: Prompt Tuning for Taxonomic Open Set Classification

1 code implementation4 Jun 2023 Tz-Ying Wu, Chih-Hui Ho, Nuno Vasconcelos

A new Prompt Tuning for Hierarchical Consistency (ProTeCt) technique is then proposed to calibrate classification across label set granularities.

Classification open-set classification

Toward Unsupervised Realistic Visual Question Answering

no code implementations ICCV 2023 Yuwei Zhang, Chih-Hui Ho, Nuno Vasconcelos

To resolve the first drawback, we propose a new testing dataset, RGQA, which combines AQs from an existing VQA dataset with around 29K human-annotated UQs.

Question Answering Visual Question Answering

DISCO: Adversarial Defense with Local Implicit Functions

1 code implementation11 Dec 2022 Chih-Hui Ho, Nuno Vasconcelos

The problem of adversarial defenses for image classification, where the goal is to robustify a classifier against adversarial examples, is considered.

Adversarial Defense Image Classification

YORO -- Lightweight End to End Visual Grounding

1 code implementation15 Nov 2022 Chih-Hui Ho, Srikar Appalaraju, Bhavan Jasani, R. Manmatha, Nuno Vasconcelos

We present YORO - a multi-modal transformer encoder-only architecture for the Visual Grounding (VG) task.

Natural Language Queries Visual Grounding

Spatio-Temporal Modeling for Flash Memory Channels Using Conditional Generative Nets

no code implementations19 Nov 2021 Simeng Zheng, Chih-Hui Ho, Wenyu Peng, Paul H. Siegel

We evaluate the model over a range of time stamps using the cell read voltage distributions, the cell level error rates, and the relative frequency of errors for patterns most susceptible to inter-cell interference (ICI) effects.

OOWL500: Overcoming Dataset Collection Bias in the Wild

no code implementations24 Aug 2021 Brandon Leung, Chih-Hui Ho, Amir Persekian, David Orozco, Yen Chang, Erik Sandstrom, Bo Liu, Nuno Vasconcelos

Second, it is used to show that the augmentation of in the wild datasets, such as ImageNet, with in the lab data, such as OOWL500, can significantly decrease these biases, leading to object recognizers of improved generalization.

Adversarial Attack Data Augmentation +2

Black-Box Test-Time Shape REFINEment for Single View 3D Reconstruction

no code implementations23 Aug 2021 Brandon Leung, Chih-Hui Ho, Nuno Vasconcelos

Much recent progress has been made in reconstructing the 3D shape of an object from an image of it, i. e. single view 3D reconstruction.

3D Reconstruction Single-View 3D Reconstruction

Contrastive Learning with Adversarial Examples

no code implementations NeurIPS 2020 Chih-Hui Ho, Nuno Vasconcelos

This paper addresses the problem, by introducing a new family of adversarial examples for constrastive learning and using these examples to define a new adversarial training algorithm for SSL, denoted as CLAE.

Contrastive Learning Self-Supervised Learning

Solving Long-tailed Recognition with Deep Realistic Taxonomic Classifier

1 code implementation ECCV 2020 Tz-Ying Wu, Pedro Morgado, Pei Wang, Chih-Hui Ho, Nuno Vasconcelos

Motivated by this, a deep realistic taxonomic classifier (Deep-RTC) is proposed as a new solution to the long-tail problem, combining realism with hierarchical predictions.

Exploit Clues from Views: Self-Supervised and Regularized Learning for Multiview Object Recognition

1 code implementation CVPR 2020 Chih-Hui Ho, Bo Liu, Tz-Ying Wu, Nuno Vasconcelos

Multiview recognition has been well studied in the literature and achieves decent performance in object recognition and retrieval task.

Object Object Recognition +2

PIEs: Pose Invariant Embeddings

no code implementations CVPR 2019 Chih-Hui Ho, Pedro Morgado, Amir Persekian, Nuno Vasconcelos

The new pose-invariant models are shown to have interesting properties, both theoretically and through experiments, where they outperform existing multiview approaches.

General Classification Retrieval

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