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Direct Preference Optimization (DPO) and its variants are increasingly used for aligning language models with human preferences. Although these methods are designed to teach a model to generate preferred responses more frequently relative…

机器学习 · 计算机科学 2025-04-29 Noam Razin , Sadhika Malladi , Adithya Bhaskar , Danqi Chen , Sanjeev Arora , Boris Hanin

Large language models (LLMs) are often modified after release through post-processing such as post-training or quantization, which makes it challenging to determine whether one model is derived from another. Existing provenance detection…

密码学与安全 · 计算机科学 2026-05-20 Yuepeng Hu , Zhengyuan Jiang , Mengyuan Li , Osama Ahmed , Zhicong Huang , Cheng Hong , Neil Gong

Direct preference optimization methods have emerged as a computationally efficient alternative to Reinforcement Learning from Human Feedback (RLHF) for aligning Large Language Models (LLMs). Latest approaches have streamlined the alignment…

机器学习 · 计算机科学 2026-02-04 Maksim Afanasyev , Illarion Iov

Large Language Models (LLMs) have revolutionized artificial intelligence with capabilities in reasoning, coding, and communication, driving innovation across industries. Their true potential depends on effective alignment to ensure correct,…

计算与语言 · 计算机科学 2025-07-25 Bowen Jin , Jinsung Yoon , Zhen Qin , Ziqi Wang , Wei Xiong , Yu Meng , Jiawei Han , Sercan O. Arik

While large language models (LLMs) exhibit significant utility across various domains, they simultaneously are susceptible to exploitation for unethical purposes, including academic misconduct and dissemination of misinformation.…

计算与语言 · 计算机科学 2024-09-24 Navid Ayoobi , Lily Knab , Wen Cheng , David Pantoja , Hamidreza Alikhani , Sylvain Flamant , Jin Kim , Arjun Mukherjee

Ensuring alignment with human preferences is a crucial characteristic of large language models (LLMs). Presently, the primary alignment methods, RLHF and DPO, require extensive human annotation, which is expensive despite their efficacy.…

计算与语言 · 计算机科学 2024-04-16 Haotian Luo

Measuring alignment between language and vision is a fundamental challenge, especially as multimodal data becomes increasingly detailed and complex. Existing methods often rely on collecting human or AI preferences, which can be costly and…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Hyojin Bahng , Caroline Chan , Fredo Durand , Phillip Isola

With the onset of large language models (LLMs), the performance of artificial intelligence (AI) models is becoming increasingly multi-dimensional. Accordingly, there have been several large, multi-dimensional evaluation frameworks put…

人机交互 · 计算机科学 2025-06-05 Sean Steinle

We find that large language models (LLMs) are more likely to modify human-written text than AI-generated text when tasked with rewriting. This tendency arises because LLMs often perceive AI-generated text as high-quality, leading to fewer…

计算与语言 · 计算机科学 2024-04-16 Chengzhi Mao , Carl Vondrick , Hao Wang , Junfeng Yang

An essential part of monitoring machine learning models in production is measuring input and output data drift. In this paper, we present a system for measuring distributional shifts in natural language data and highlight and investigate…

计算与语言 · 计算机科学 2023-12-06 Gyandev Gupta , Bashir Rastegarpanah , Amalendu Iyer , Joshua Rubin , Krishnaram Kenthapadi

Large Language Models (LLMs) have shown impressive performance across a variety of Artificial Intelligence (AI) and natural language processing tasks, such as content creation, report generation, etc. However, unregulated malign application…

计算与语言 · 计算机科学 2023-09-15 Harika Abburi , Michael Suesserman , Nirmala Pudota , Balaji Veeramani , Edward Bowen , Sanmitra Bhattacharya

The advancement of large language models (LLMs) has made it difficult to differentiate human-written text from AI-generated text. Several AI-text detectors have been developed in response, which typically utilize a fixed global threshold…

计算与语言 · 计算机科学 2026-02-03 Minseok Jung , Cynthia Fuertes Panizo , Liam Dugan , Yi R. , Fung , Pin-Yu Chen , Paul Pu Liang

The recent proliferation of AI-generated content has prompted significant interest in developing reliable detection methods. This study explores techniques for identifying AI-generated text through sentence-level evaluation within hybrid…

计算与语言 · 计算机科学 2024-12-30 Dima Galat

An ideal detection system for machine generated content is supposed to work well on any generator as many more advanced LLMs come into existence day by day. Existing systems often struggle with accurately identifying AI-generated content…

Out-of-distribution (OOD) detection is crucial for model reliability, as it identifies samples from unknown classes and reduces errors due to unexpected inputs. Vision-Language Models (VLMs) such as CLIP are emerging as powerful tools for…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Yabin Zhang , Wenjie Zhu , Chenhang He , Lei Zhang

Alignment techniques enable Large Language Models (LLMs) to generate outputs that align with human preferences and play a crucial role in their effectiveness. However, their impact often diminishes when applied to Small Language Models…

计算与语言 · 计算机科学 2025-03-06 Shiping Gao , Fanqi Wan , Jiajian Guo , Xiaojun Quan , Qifan Wang

LLM alignment ensures that large language models behave safely and effectively by aligning their outputs with human values, goals, and intentions. Aligning LLMs employ huge amounts of data, computation, and time. Moreover, curating data…

机器学习 · 计算机科学 2025-02-19 Amrit Khera , Rajat Ghosh , Debojyoti Dutta

The rapid adoption of large language models (LLMs), such as GPT-4 and Claude 3.5, underscores the need to distinguish LLM-generated text from human-written content to mitigate the spread of misinformation and misuse in education. One…

机器学习 · 统计学 2025-11-11 Xingchi Li , Xiaochi Liu , Guanxun Li

Widely applied large language models (LLMs) can generate human-like content, raising concerns about the abuse of LLMs. Therefore, it is important to build strong AI-generated text (AIGT) detectors. Current works only consider document-level…

计算与语言 · 计算机科学 2023-12-18 Pengyu Wang , Linyang Li , Ke Ren , Botian Jiang , Dong Zhang , Xipeng Qiu

The rapid progress of large language models has enabled the generation of text that closely resembles human writing, creating challenges for authenticity verification in education, publishing, and digital security. Detecting AI-generated…

计算与语言 · 计算机科学 2026-01-29 Michał Gromadzki , Anna Wróblewska , Agnieszka Kaliska