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The integration of large language models (LLMs) into automated algorithm design has shown promising potential. A prevalent approach embeds LLMs within search routines to iteratively generate and refine candidate algorithms. However, most…

机器学习 · 计算机科学 2026-05-20 Fei Liu , Rui Zhang , Xi Lin , Zhichao Lu , Qingfu Zhang

Large language models are first pre-trained on trillions of tokens and then instruction-tuned or aligned to specific preferences. While pre-training remains out of reach for most researchers due to the compute required, fine-tuning has…

计算与语言 · 计算机科学 2024-06-10 Megh Thakkar , Quentin Fournier , Matthew D Riemer , Pin-Yu Chen , Amal Zouaq , Payel Das , Sarath Chandar

Fine-tuning large language models (LLMs) based on human preferences, commonly achieved through reinforcement learning from human feedback (RLHF), has been effective in improving their performance. However, maintaining LLM safety throughout…

人工智能 · 计算机科学 2025-02-18 Yingshui Tan , Yilei Jiang , Yanshi Li , Jiaheng Liu , Xingyuan Bu , Wenbo Su , Xiangyu Yue , Xiaoyong Zhu , Bo Zheng

Fine-tuning Large Language Models (LLMs) for downstream tasks often compromises safety alignment, even when using parameter-efficient methods like LoRA. In this work, we uncover a notable property: fine-tuned models preserve the geometric…

机器学习 · 计算机科学 2025-11-25 Thong Bach , Thanh Nguyen-Tang , Dung Nguyen , Thao Minh Le , Truyen Tran

Large Language Models (LLMs) are trained on large corpora written by humans and demonstrate high performance on various tasks. However, as humans are susceptible to cognitive biases, which can result in irrational judgments, LLMs can also…

计算与语言 · 计算机科学 2024-12-03 Yasuaki Sumita , Koh Takeuchi , Hisashi Kashima

Methods for adapting language models (LMs) to new tasks and domains have traditionally assumed white-box access to the model, and work by modifying its parameters. However, this is incompatible with a recent trend in the field, where the…

计算与语言 · 计算机科学 2023-05-29 Aitor Ormazabal , Mikel Artetxe , Eneko Agirre

Low-rank adaptation (LoRA) has emerged as a new paradigm for cost-efficient fine-tuning of large language models (LLMs). However, fine-tuned LLMs often become overconfident especially when fine-tuned on small datasets. Bayesian methods,…

机器学习 · 计算机科学 2024-02-07 Adam X. Yang , Maxime Robeyns , Xi Wang , Laurence Aitchison

The machine learning community has witnessed impressive advancements since large language models (LLMs) first appeared. Yet, their massive memory consumption has become a significant roadblock to large-scale training. For instance, a 7B…

机器学习 · 计算机科学 2024-12-30 Rui Pan , Xiang Liu , Shizhe Diao , Renjie Pi , Jipeng Zhang , Chi Han , Tong Zhang

Humanitarian organizations face a critical choice: invest in costly commercial APIs or rely on free open-weight models for multilingual human rights monitoring. While commercial systems offer reliability, open-weight alternatives lack…

计算与语言 · 计算机科学 2025-10-28 Poli Nemkova , Amrit Adhikari , Matthew Pearson , Vamsi Krishna Sadu , Mark V. Albert

The fine-tuning of Large Language Models (LLMs) has enabled them to recently achieve milestones in natural language processing applications. The emergence of ever larger LLMs has paved the way for more efficient fine-tuning methods. Among…

计算与语言 · 计算机科学 2024-02-01 Christophe Tribes , Sacha Benarroch-Lelong , Peng Lu , Ivan Kobyzev

Cognitive Behavioral Therapy (CBT) is a well-established, evidence-based treatment for Major Depressive Disorder. Unfortunately, there exist significant barriers to individuals accessing CBT, including cost, scarcity of therapists and…

人工智能 · 计算机科学 2025-09-23 Talha Tahir

The SLAM paper demonstrated that on-device Small Language Models (SLMs) are a viable and cost-effective alternative to API-based Large Language Models (LLMs), such as OpenAI's GPT-4, offering comparable performance and stability. However,…

计算与语言 · 计算机科学 2024-07-19 Roland Daynauth , Jason Mars

In an era where language models are increasingly integrated into decision-making and communication, understanding the biases within Large Language Models (LLMs) becomes imperative, especially when these models are applied in the economic…

计算与语言 · 计算机科学 2024-07-30 Ahmed Agiza , Mohamed Mostagir , Sherief Reda

Large Language Models (LLMs) consistently excel in diverse medical Natural Language Processing (NLP) tasks, yet their substantial computational requirements often limit deployment in real-world healthcare settings. In this work, we…

计算与语言 · 计算机科学 2026-02-20 Pietro Ferrazzi , Mattia Franzin , Alberto Lavelli , Bernardo Magnini

While large language models (LLMs) such as Llama-2 or GPT-4 have shown impressive zero-shot performance, fine-tuning is still necessary to enhance their performance for customized datasets, domain-specific tasks, or other private needs.…

机器学习 · 计算机科学 2025-01-07 Chia-Yi Hsu , Yu-Lin Tsai , Chih-Hsun Lin , Pin-Yu Chen , Chia-Mu Yu , Chun-Ying Huang

Hyperparameter optimization is a crucial problem in Evolutionary Computation. In fact, the values of the hyperparameters directly impact the trajectory taken by the optimization process, and their choice requires extensive reasoning by…

神经与进化计算 · 计算机科学 2024-08-06 Leonardo Lucio Custode , Fabio Caraffini , Anil Yaman , Giovanni Iacca

Safety alignment of Large Language Models (LLMs) has recently become a critical objective of model developers. In response, a growing body of work has been investigating how safety alignment can be bypassed through various jailbreaking…

机器学习 · 计算机科学 2024-12-06 Jason Vega , Junsheng Huang , Gaokai Zhang , Hangoo Kang , Minjia Zhang , Gagandeep Singh

There is increasing interest in the application large language models (LLMs) to the medical field, in part because of their impressive performance on medical exam questions. While promising, exam questions do not reflect the complexity of…

Fine-tuning Large Language Models (LLMs) with Low-Rank Adaptation (LoRA) enhances adaptability while reducing computational costs. However, fine-tuning can compromise safety alignment, even with benign data, increasing susceptibility to…

机器学习 · 计算机科学 2025-06-25 Shuang Ao , Yi Dong , Jinwei Hu , Sarvapali Ramchurn

The rapid growth of biomedical literature poses challenges for manual knowledge curation and synthesis. Biomedical Natural Language Processing (BioNLP) automates the process. While Large Language Models (LLMs) have shown promise in general…