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Jihwan Park

13 accepted papers

2026

GrayKD: Distilling Better Knowledge from Black-box LLM via Multi-rationale Injection

AAAI 2026technical

Knowledge distillation (KD) is a promising compression technique for reducing the computational burden of large language models (LLMs). Depending on access to the teacher model’s internal parameters, KD is typically categorized into white-box and black-box KD. While white-box KD benefits from full a

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2026

RegFormer: Transferable Relational Grounding for Efficient Weakly-Supervised Human-Object Interaction Detection

CVPR 2026

Weakly-supervised Human-Object Interaction (HOI) detection is essential for scalable scene understanding, as it learns interactions from only image-level annotations. Due to the lack of localization signals, prior works typically rely on an external object detector to generate candidate pairs and th

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2026

Transferable Model-agnostic Vision-Language Model Adaptation for Efficient Weak-to-Strong Generalization

AAAI 2026technical

Vision-Language Models (VLMs) have been widely used in various visual recognition tasks due to their remarkable generalization capabilities. As these models grow in size and complexity, fine-tuning becomes costly, emphasizing the need to reuse adaptation knowledge from

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2025

Super-Class Guided Transformer for Zero-Shot Attribute Classification

AAAI 2025technical

Attribute classification is crucial for identifying specific characteristics within image regions. Vision-Language Models (VLMs) have been effective in zero-shot tasks by leveraging their general knowledge from large-scale datasets. Recent studies demonstrate that transformer-based models with class…

2025

Visual Diversity and Region-aware Prompt Learning for Zero-shot HOI Detection

NeurIPS 2025poster

Zero-shot Human-Object Interaction detection aims to localize humans and objects in an image and recognize their interaction, even when specific verb-object pairs are unseen during training. Recent works have shown promising results using prompt learning with pretrained vision-language models such a…

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2024

Groupwise Query Specialization and Quality-Aware Multi-Assignment for Transformer-based Visual Relationship Detection

CVPR 2024poster

Visual Relationship Detection (VRD) has seen significant advancements with Transformer-based architectures recently. However we identify two key limitations in a conventional label assignment for training Transformer-based VRD models which is a process of mapping a ground-truth (GT) to a prediction.…

2024

Learning Contextualized Representation on Discrete Space Via Hierarchical Product Quantization

ICASSP 2024accepted

Self-supervised learning has recently demonstrated significant success in various speech processing applications. Recent studies report that pre-training with contextualized continuous targets plays a crucial role in fine-tuning for better speech downstream tasks. However, unlike the continuous targ…

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2023

Joint Unsupervised and Supervised Learning for Context-Aware Language Identification

ICASSP 2023accepted

Language identification (LID) recognizes the language of a spoken utterance automatically. According to recent studies, LID models trained with an automatic speech recognition (ASR) task perform better than those trained with a LID task only. However, we need additional text labels to train the mode…

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2023

Metric Learning for User-Defined Keyword Spotting

ICASSP 2023accepted

The goal of this work is to detect new spoken terms defined by users. While most previous works address Keyword Spotting (KWS) as a closed-set classification problem, this limits their transferability to unseen terms. The ability to define custom keywords has advantages in terms of user experience.I…

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2023

Open-vocabulary Video Question Answering: A New Benchmark for Evaluating the Generalizability of Video Question Answering Models

ICCV 2023poster

Video Question Answering (VideoQA) is a challenging task that entails complex multi-modal reasoning. In contrast to multiple-choice VideoQA which aims to predict the answer given several options, the goal of open-ended VideoQA is to answer questions without restricting candidate answers. However, th…

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2022

Consistency Learning via Decoding Path Augmentation for Transformers in Human Object Interaction Detection

CVPR 2022poster

Human-Object Interaction detection is a holistic visual recognition task that entails object detection as well as interaction classification. Previous works of HOI detection has been addressed by the various compositions of subset predictions, e.g., Image -> HO -> I, Image -> HI -> O. Recently, tran…

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2016

Dual-microphone voice activity detection based on using optimally weighted maximum a posteriori probabilities

ICASSP 2016accepted

In this paper, we propose to improve the dual-microphone voice activity detection (VAD) technique for which a discriminative weight training is applied to achieve optimally weighted spatial features. In our approach, we first derive the maximum a posteriori (MAP) probabilities from the spatial featu…

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