Papers with multi-objective optimization
Encouraging Good Processes Without the Need for Good Answers: Reinforcement Learning for LLM Agent Planning (2025.emnlp-industry)
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| Challenge: | Currently, the dominant end-to-end reinforcement learning paradigm for agents in Large Language Models (LLMs) employs multi-objective optimization that jointly trains both planning and answer summarization capabilities. |
| Approach: | They propose a framework that decouples the training process to enable a focused, single-objective optimization of the planning module. |
| Outcome: | The proposed framework achieves an 8%–12% improvement in planning performance compared to end-to-end baselines. |
Extracting Military Event Temporal Relations via Relative Event Time Prediction and Virtual Adversarial Training (2025.findings-naacl)
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| Challenge: | Existing models for extracting event temporal relations typically compare the relative times of events directly, neglecting the contextual information between event pairs. |
| Approach: | They propose a temporal relationship extraction model based on relative event time prediction and virtual adversarial training, MFRV. |
| Outcome: | The proposed model can capture and infer temporal relationships and can be generalized by generating adversarial samples. |
CONGRAD: Conflicting Gradient Filtering for Multilingual Preference Alignment (2026.eacl-long)
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Jiangnan Li, Thuy-Trang Vu, Christian Herold, Amirhossein Tebbifakhr, Shahram Khadivi, Gholamreza Haffari
| Challenge: | Naive joint training of large language models can suffer from negative interference. |
| Approach: | They propose a filtering method that aggregates cross-lingually beneficial gradients and filters for those with high cross-linguistic affinity. |
| Outcome: | The proposed method outperforms baselines in both seen and unseen languages with minimal alignment tax. |
MSMO-ABSA: Multi-Scale and Multi-Objective Optimization for Cross-Lingual Aspect-Based Sentiment Analysis (2026.acl-long)
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| Challenge: | Aspect-based sentiment analysis (ABSA) has seen success with English texts, but real-world social media interactions often involve multiple languages. |
| Approach: | They propose a framework for cross-lingual ABSA that incorporates code-switched bilingual sentences into the language discriminator and consistency training modules to enhance cross-linguistic alignment. |
| Outcome: | The proposed framework achieves cross-lingual sentence-level and aspect-level alignment, aligning features of aspect terms in different contextual environments. |
Online Iterative Self-Alignment for Radiology Report Generation (2025.acl-long)
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| Challenge: | Existing methods for RRG rely on supervised fine-tuning based on data pairs of radiological images and corresponding radiologist-annotated reports. |
| Approach: | They propose a method that performs supervised fine-tuning on data pairs of radiological images and corresponding radiologist-annotated reports. |
| Outcome: | The proposed method surpasses existing methods and achieves state-of-the-art performance across multiple evaluation metrics. |