Papers by Junmo Kim
MATE: Meet At The Embedding - Connecting Images with Long Texts (2024.findings-emnlp)
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| Challenge: | Recent advances in Vision Language Models (VLMs) focus on aligning images with short descriptive captions. |
| Approach: | They propose a method that combines VLMs with Large Language Models to efficiently align images with long texts without additional text pairs. |
| Outcome: | The proposed method bridges the gap between VLM and LLM without additional image-long text pairs. |
Exploiting Numerical-Contextual Knowledge to Improve Numerical Reasoning in Question Answering (2022.findings-naacl)
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| Challenge: | Existing numerical reasoning models overly rely on parametric knowledge at inference time . previous studies show that understanding numbers in text improves numerical reasoning accuracy . |
| Approach: | They propose a numerical reasoning model that leverages parametric knowledge to alleviate this over-reliance on parametric information. |
| Outcome: | The proposed model improves numerical reasoning accuracy and performance in DROP. |
StablePrompt : Automatic Prompt Tuning using Reinforcement Learning for Large Language Model (2024.emnlp-main)
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| Challenge: | Recent advances in large language models have made it difficult to find appropriate prompts for tasks with multiple input-output formats. |
| Approach: | They propose a prompt tuning method based on reinforcement learning (RL) they propose an anchor model and an extension for generating input-dependent prompts. |
| Outcome: | The proposed method outperforms existing methods on a variety of tasks and achieves State-of-the-art performance across diverse types and sizes of LLMs. |
Translation Deserves Better: Analyzing Translation Artifacts in Cross-lingual Visual Question Answering (2024.findings-acl)
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ChaeHun Park, Koanho Lee, Hyesu Lim, Jaeseok Kim, Junmo Park, Yu-Jung Heo, Du-Seong Chang, Jaegul Choo
| Challenge: | Recent studies have employed machine translation systems for cross-lingual VQA tasks . however, translated texts contain unique characteristics distinct from human-written ones, referred to as translation artifacts. |
| Approach: | They propose a machine translation system that can train models in multiple languages . they propose augmentation strategies that reduce translation artifacts in translated texts . |
| Outcome: | The proposed approach reduces translation artifacts in models across languages and languages. |
Have You Seen That Number? Investigating Extrapolation in Question Answering Models (2021.emnlp-main)
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| Challenge: | Numerical reasoning in machine reading comprehension (MRC) has shown drastic improvements over the past few years. |
| Approach: | They propose an E-digit number form that alleviates the lack of extrapolation in numerical MRC models. |
| Outcome: | The proposed model can't extrapolate to unseen numbers, the authors say . they also show that the model needs to treat numbers differently from regular words . |
Preserving Multi-Modal Capabilities of Pre-trained VLMs for Improving Vision-Linguistic Compositionality (2024.emnlp-main)
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| Challenge: | Existing fine-tuning approaches for compositional understanding compromise performance in zero-shot multi-modal tasks. |
| Approach: | They propose a method to enhance compositional understanding in pre-trained vision and language models without sacrificing performance in zero-shot multi-modal tasks. |
| Outcome: | The proposed method achieves compositionality on par with state-of-the-art models and retains strong multi-modal capabilities. |
Why So Gullible? Enhancing the Robustness of Retrieval-Augmented Models against Counterfactual Noise (2024.findings-naacl)
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| Challenge: | Existing retrieval-augmented language models assume query relevance and irrelevance as dichotomy . existing models are highly brittle to the presence of conflicting information in both the fine-tuning and in-context few-shot learning scenarios. |
| Approach: | They propose methods for handling knowledge conflicts by fine-tuning a discriminator or prompting it to elicit its discriminative capability. |
| Outcome: | The proposed approaches significantly enhance model robustness on open-domain QA. |
Forget What Matters, Keep the Rest: Selective Unlearning of Informative Tokens (2026.acl-long)
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| Challenge: | Recent studies have explored token-wise loss regularizers that prioritize informative tokens, but rely on ground-truth confidence or external linguistic parsers, which limits their ability to capture contextual information or the model’s overall predictive state. |
| Approach: | They propose an Entropy-guided Token Weighting (ETW) token-level unlearning regularizer that uses entropy of the predictive distribution as a proxy for token informativeness. |
| Outcome: | The proposed token-level unlearning regularizer can achieve more effective unlearning while better preserving model utility than existing token-based approaches. |
Leveraging Order-Free Tag Relations for Context-Aware Recommendation (2021.emnlp-main)
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| Challenge: | Existing approaches to tag recommendation neglect orderlessness and inter-dependency . Empirical results on Instagram and Stack Overflow show that our method is significantly superior to the previous approaches. |
| Approach: | They propose a sequence-oblivious generation method for tag recommendation . the next tag to be generated is independent of the order of the generated tags . they also propose regressive generation methods that take orderlessness into account . |
| Outcome: | Empirical results show that the proposed method is superior to previous approaches . the proposed system is based on two domains, Instagram and Stack Overflow . |
Graph-Induced Transformers for Efficient Multi-Hop Question Answering (2022.emnlp-main)
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| Challenge: | Recent MHQA tasks that require inter-paragraph/sentence linkages use graphs to model internal structural information within text. |
| Approach: | They propose a graph-induced transformer that applies graph-derived attention patterns directly into a PLM without external graph modules. |
| Outcome: | The proposed model can replace external graph modules while preserving model performance. |