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Dialogue data in real scenarios tend to be sparsely available, rendering data-starved end-to-end dialogue systems trained inadequately. We discover that data utilization efficiency in low-resource scenarios can be enhanced by mining…

计算与语言 · 计算机科学 2023-05-26 Shimin Li , Xiaotian Zhang , Yanjun Zheng , Linyang Li , Xipeng Qiu

Embedding fusion has emerged as an effective approach for enhancing performance across various NLP tasks. However, systematic guidelines for selecting optimal layers and developing effective fusion strategies for the integration of LLMs…

计算与语言 · 计算机科学 2025-04-09 Jiho Gwak , Yuchul Jung

Large Language Models (LLMs) have shown impressive zero-shot performance across a variety of Natural Language Processing tasks, including document re-ranking. However, their effectiveness degrades on unseen tasks and domains, largely due to…

信息检索 · 计算机科学 2025-05-02 Marco Braga , Pranav Kasela , Alessandro Raganato , Gabriella Pasi

In this paper, we introduce the MLM (Multiple Languages and Modalities) dataset - a new resource to train and evaluate multitask systems on samples in multiple modalities and three languages. The generation process and inclusion of semantic…

机器学习 · 计算机科学 2020-10-27 Jason Armitage , Endri Kacupaj , Golsa Tahmasebzadeh , Swati , Maria Maleshkova , Ralph Ewerth , Jens Lehmann

Multilingual Neural Machine Translation (MNMT) for low-resource languages (LRL) can be enhanced by the presence of related high-resource languages (HRL), but the relatedness of HRL usually relies on predefined linguistic assumptions about…

计算与语言 · 计算机科学 2019-10-31 Surafel M. Lakew , Alina Karakanta , Marcello Federico , Matteo Negri , Marco Turchi

Instruction Tuning (IT) has been proven to be an effective approach to unlock the powerful capabilities of large language models (LLMs). Recent studies indicate that excessive IT data can degrade LLMs performance, while carefully selecting…

计算与语言 · 计算机科学 2026-03-16 Xin Chen , Junchao Wu , Shu Yang , Runzhe Zhan , Zeyu Wu , Min Yang , Shujian Huang , Lidia S. Chao , Derek F. Wong

Large language models (LLMs) have been applied to a wide range of tasks, including text summarization, web navigation, and chatbots. They have benefitted from supervised fine-tuning (SFT) and reinforcement learning from human feedback…

计算与语言 · 计算机科学 2024-08-07 Ryan Aponte , Ryan A. Rossi , Shunan Guo , Franck Dernoncourt , Tong Yu , Xiang Chen , Subrata Mitra , Nedim Lipka

Datasets nowadays are generally constructed from multiple sources and using different synthetic techniques, making data de-noising and de-duplication crucial before being used for post-training. In this work, we propose to perform…

计算与语言 · 计算机科学 2024-12-24 Qi Jia , Siyu Ren , Ziheng Qin , Fuzhao Xue , Jinjie Ni , Yang You

Online coordination of multi-robot systems in open and unknown environments faces significant challenges, particularly when semantic features detected during operation dynamically trigger new tasks. Recent large language model (LLMs)-based…

机器人学 · 计算机科学 2025-08-21 Yuxiao Zhu , Junfeng Chen , Xintong Zhang , Meng Guo , Zhongkui Li

Unseen data can degrade performance of deep neural net acoustic models. To cope with unseen data, adaptation techniques are deployed. For unlabeled unseen data, one must generate some hypothesis given an existing model, which is used as the…

计算与语言 · 计算机科学 2018-02-21 Vikramjit Mitra , Horacio Franco

When developing new large language models (LLMs), a key step is evaluating their final performance, often by computing the win-rate against a reference model based on external feedback. Human feedback is the gold standard, particularly for…

机器学习 · 计算机科学 2025-02-26 Zhaoyi Zhou , Yuda Song , Andrea Zanette

Reinforcement learning (RL) is one of the active fields in machine learning, demonstrating remarkable potential in tackling real-world challenges. Despite its promising prospects, this methodology has encountered with issues and challenges,…

机器学习 · 计算机科学 2024-11-21 Alireza Rashidi Laleh , Majid Nili Ahmadabadi

Instruction tuning is a widely used approach to improve the instruction-following ability of large language models (LLMs). Instruction-tuning datasets typically include a mixture of context-augmented and context-free examples, yet prior…

Large language models have demonstrated remarkable capabilities across various tasks, primarily attributed to the utilization of diversely sourced data. However, the impact of pretraining data composition on model performance remains poorly…

机器学习 · 计算机科学 2025-01-28 Ce Ge , Zhijian Ma , Daoyuan Chen , Yaliang Li , Bolin Ding

Modern language models (LMs) increasingly require two critical resources: computational resources and data resources. Data selection techniques can effectively reduce the amount of training data required for fine-tuning LMs. However, their…

计算与语言 · 计算机科学 2026-02-20 Hongming Li , Yang Liu , Chao Huang

Large language models (LLMs) are very proficient text generators. We leverage this capability of LLMs to generate task-specific data via zero-shot prompting and promote cross-lingual transfer for low-resource target languages. Given…

计算与语言 · 计算机科学 2024-07-16 Barah Fazili , Ashish Sunil Agrawal , Preethi Jyothi

The recent history of machine learning research has taught us that machine learning methods can be most effective when they are provided with very large, high-capacity models, and trained on very large and diverse datasets. This has spurred…

机器学习 · 计算机科学 2021-10-26 Sergey Levine

Fine-tuning pre-trained language models (LMs) is essential for enhancing their capabilities. Existing techniques commonly fine-tune on input-output pairs (e.g., instruction tuning) or with numerical rewards that gauge the output quality…

计算与语言 · 计算机科学 2024-03-20 Xingyao Wang , Hao Peng , Reyhaneh Jabbarvand , Heng Ji

While large language models (LLMs) demonstrate reasonable zero-shot capability across many downstream tasks, fine-tuning is a common practice to improve their performance. However, a task's data efficiency--i.e., the number of fine-tuning…

机器学习 · 计算机科学 2026-01-01 Gyung Hyun Je , Colin Raffel

AI agents powered by large language models (LLMs) are being used to solve increasingly complex software engineering challenges, but struggle with hardware design tasks. Register Transfer Level (RTL) code presents a unique challenge for…