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Unsupervised Neural Machine Translation (UNMT) focuses on improving NMT results under the assumption there is no human translated parallel data, yet little work has been done so far in highlighting its advantages compared to supervised…

计算与语言 · 计算机科学 2023-12-21 Isidora Chara Tourni , Derry Wijaya

Recent studies have demonstrated the efficiency of generative pretraining for English natural language understanding. In this work, we extend this approach to multiple languages and show the effectiveness of cross-lingual pretraining. We…

计算与语言 · 计算机科学 2019-01-23 Guillaume Lample , Alexis Conneau

Parameter-Efficient Fine-Tuning (PEFT) is a popular class of techniques that strive to adapt large models in a scalable and resource-efficient manner. Yet, the mechanisms underlying their training performance and generalization remain…

机器学习 · 计算机科学 2026-02-10 Zahra Rahimi Afzal , Tara Esmaeilbeig , Mojtaba Soltanalian , Mesrob I. Ohannessian

We present an ensemble-driven self-training framework for unsupervised neural machine translation (UNMT). Starting from a primary language pair, we train multiple UNMT models that share the same translation task but differ in an auxiliary…

计算与语言 · 计算机科学 2026-03-19 Ido Aharon , Jonathan Shaki , Sarit Kraus

Fine-tuning Large Language Models (LLMs) typically involves either full fine-tuning, which updates all model parameters, or Parameter-Efficient Fine-Tuning (PEFT), which adjusts a small subset of parameters. However, both approaches have…

人工智能 · 计算机科学 2026-04-14 Shaocong Ma , Peiran Yu , Heng Huang

Supervised fine-tuning (SFT) is a fundamental post-training strategy to align Large Language Models (LLMs) with human intent. However, traditional SFT often ignores the one-to-many nature of language by forcing alignment with a single…

计算与语言 · 计算机科学 2026-05-07 Tao Liu , Taiqiang Wu , Runming Yang , Shaoning Sun , Junjie Wang , Yujiu Yang

The impact of subword tokenization on language model performance is well-documented for perplexity, with finer granularity consistently reducing this intrinsic metric. However, research on how different tokenization schemes affect a model's…

计算与语言 · 计算机科学 2025-08-12 Nishant Luitel , Nirajan Bekoju , Anand Kumar Sah , Subarna Shakya

While supervised fine-tuning (SFT) has been a straightforward approach for tailoring the output of foundation large language model (LLM) to specific preferences, concerns have been raised about the depth of this alignment, with some…

计算与语言 · 计算机科学 2024-04-26 Runzhe Zhan , Xinyi Yang , Derek F. Wong , Lidia S. Chao , Yue Zhang

Large language models (LLMs) have demonstrated significant progress in multilingual language understanding and generation. However, due to the imbalance in training data, their capabilities in non-English languages are limited. Recent…

Open-source large language models (LLMs) have gained significant strength across diverse fields. Nevertheless, the majority of studies primarily concentrate on English, with only limited exploration into the realm of multilingual abilities.…

计算与语言 · 计算机科学 2024-02-20 Haoyu Wang , Shuo Wang , Yukun Yan , Xujia Wang , Zhiyu Yang , Yuzhuang Xu , Zhenghao Liu , Liner Yang , Ning Ding , Xu Han , Zhiyuan Liu , Maosong Sun

Pre-trained Language Models (PLMs) can be accurately fine-tuned for downstream text processing tasks. Recently, researchers have introduced several parameter-efficient fine-tuning methods that optimize input prompts or adjust a small number…

计算与语言 · 计算机科学 2024-06-07 Saeed Najafi , Alona Fyshe

Language model pre-training has proven to be useful in learning universal language representations. As a state-of-the-art language model pre-training model, BERT (Bidirectional Encoder Representations from Transformers) has achieved amazing…

计算与语言 · 计算机科学 2020-02-06 Chi Sun , Xipeng Qiu , Yige Xu , Xuanjing Huang

Lemmatization is the process of grouping together the inflected forms of a word so they can be analysed as a single item, identified by the word's lemma, or dictionary form. In computational linguistics, lemmatisation is the algorithmic…

计算与语言 · 计算机科学 2022-07-26 Michal Karwatowski , Marcin Pietron

Despite the recent success of image-text contrastive models like CLIP and SigLIP, these models often struggle with vision-centric tasks that demand high-fidelity image understanding, such as counting, depth estimation, and fine-grained…

计算机视觉与模式识别 · 计算机科学 2025-04-09 Zineng Tang , Long Lian , Seun Eisape , XuDong Wang , Roei Herzig , Adam Yala , Alane Suhr , Trevor Darrell , David M. Chan

Adapting pretrained large language models (LLMs) to various downstream tasks in tens or hundreds of human languages is computationally expensive. Parameter-efficient fine-tuning (PEFT) significantly reduces the adaptation cost, by tuning…

计算与语言 · 计算机科学 2024-08-02 Chu-Cheng Lin , Xinyi Wang , Jonathan H. Clark , Han Lu , Yun Zhu , Chenxi Whitehouse , Hongkun Yu

Unlike mainstream languages (such as English and French), low-resource languages often suffer from a lack of expert-annotated corpora and benchmark resources that make it hard to apply state-of-the-art techniques directly. In this paper, we…

计算与语言 · 计算机科学 2019-07-04 Jan Christian Blaise Cruz , Charibeth Cheng

Recently, there is an effort to extend fine-grained entity typing by using a richer and ultra-fine set of types, and labeling noun phrases including pronouns and nominal nouns instead of just named entity mentions. A key challenge for this…

计算与语言 · 计算机科学 2021-06-09 Hongliang Dai , Yangqiu Song , Haixun Wang

Pre-trained language models (PLMs) aim to learn universal language representations by conducting self-supervised training tasks on large-scale corpora. Since PLMs capture word semantics in different contexts, the quality of word…

计算与语言 · 计算机科学 2022-03-22 Wenhao Yu , Chenguang Zhu , Yuwei Fang , Donghan Yu , Shuohang Wang , Yichong Xu , Michael Zeng , Meng Jiang

We introduce a few-shot benchmark consisting of 7 different classification tasks native to the Polish language. We conducted an empirical comparison with 0 and 16 shots between fine-tuning, linear probing, SetFit, and in-context learning…

计算与语言 · 计算机科学 2024-04-30 Tsimur Hadeliya , Dariusz Kajtoch

Large language model fine-tuning techniques typically depend on extensive labeled data, external guidance, and feedback, such as human alignment, scalar rewards, and demonstration. However, in practical application, the scarcity of specific…

计算与语言 · 计算机科学 2024-12-31 Jia Liu , Yue Wang , Zhiqi Lin , Min Chen , Yixue Hao , Long Hu