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This study presents a novel algorithm for identifying ghost targets in automotive radar by estimating complex valued signal strength across a two-dimensional angle grid defined by direction-of-arrival (DOA) and direction-of-departure (DOD).…

信号处理 · 电气工程与系统科学 2026-02-13 Junho Kweon , Vishal Monga

Text-to-image (T2I) diffusion models have demonstrated impressive capabilities in generating high-quality images given a text prompt. However, ensuring the prompt-image alignment remains a considerable challenge, i.e., generating images…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Liyao Jiang , Negar Hassanpour , Mohammad Salameh , Mohan Sai Singamsetti , Fengyu Sun , Wei Lu , Di Niu

Parameter-efficient fine-tuning methods, such as LoRA, reduces the number of trainable parameters. However, they often suffer from scalability issues and differences between their learning pattern and full fine-tuning. To overcome these…

机器学习 · 计算机科学 2025-01-22 Hamid Nasiri , Peter Garraghan

Low-Rank Adaptation (LoRA) is widely used for parameter-efficient fine-tuning of large language models, but it is notably ineffective at removing backdoor behaviors from poisoned pretrained models when fine-tuning on clean dataset. Contrary…

计算与语言 · 计算机科学 2026-01-13 Hoang-Chau Luong , Lingwei Chen

Despite the efficacy of network sparsity in alleviating the deployment strain of Large Language Models (LLMs), it endures significant performance degradation. Applying Low-Rank Adaptation (LoRA) to fine-tune the sparse LLMs offers an…

机器学习 · 计算机科学 2025-02-21 Weizhong Huang , Yuxin Zhang , Xiawu Zheng , Yang Liu , Jing Lin , Yiwu Yao , Rongrong Ji

Low-rank adaption (LoRA) is a prominent method that adds a small number of learnable parameters to the frozen pre-trained weights for parameter-efficient fine-tuning. Prompted by the question, ``Can we make its representation enough with…

计算机视觉与模式识别 · 计算机科学 2024-06-14 Injoon Hwang , Haewon Park , Youngwan Lee , Jooyoung Yang , SunJae Maeng

The integration of Smart Surfaces in 6G communication networks, also dubbed as Reconfigurable Intelligent Surfaces (RISs), is a promising paradigm change gaining significant attention given its disruptive features. RISs are a key enabler in…

网络与互联网体系结构 · 计算机科学 2025-03-31 Guillermo Encinas-Lago , Francesco Devoti , Marco Rossanese , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

Language models increasingly show their work by writing step-by-step reasoning before answering. But are these steps genuinely used, or is the answer rigid - fixed before reasoning begins? We introduce the Step-Level Reasoning Capacity…

计算与语言 · 计算机科学 2026-04-14 Abhinaba Basu , Pavan Chakraborty

Empirical studies suggest that machine learning models trained with empirical risk minimization (ERM) often rely on attributes that may be spuriously correlated with the class labels. Such models typically lead to poor performance during…

机器学习 · 计算机科学 2023-03-02 Sheng Liu , Xu Zhang , Nitesh Sekhar , Yue Wu , Prateek Singhal , Carlos Fernandez-Granda

Semantic object mapping in uncertain, perceptually degraded environments during long-range multi-robot autonomous exploration tasks such as search-and-rescue is important and challenging. During such missions, high recall is desirable to…

Clarification questions help conversational search systems resolve ambiguous or underspecified user queries. While prior work has focused on fluency and alignment with user intent, especially through facet extraction, much less attention…

计算与语言 · 计算机科学 2026-01-21 Ahmed Rayane Kebir , Vincent Guigue , Lynda Said Lhadj , Laure Soulier

The modernization of existing and new nuclear power plants with digital instrumentation and control systems (DI&C) is a recent and highly trending topic. However, there lacks strong consensus on best-estimate reliability methodologies by…

软件工程 · 计算机科学 2022-05-25 Edward Chen , Han Bao , Tate Shorthill , Carl Elks , Athira Varma Jayakumar , Nam Dinh

Retrieval-Augmented Generation (RAG) systems often struggle to handle multi-hop question-answering tasks accurately due to irrelevant context retrieval and limited complex reasoning capabilities. We introduce Collab-RAG, a collaborative…

计算与语言 · 计算机科学 2025-04-08 Ran Xu , Wenqi Shi , Yuchen Zhuang , Yue Yu , Joyce C. Ho , Haoyu Wang , Carl Yang

Recent advancements in fine-tuning Vision-Language Foundation Models (VLMs) have garnered significant attention for their effectiveness in downstream few-shot learning tasks.While these recent approaches exhibits some performance…

计算机视觉与模式识别 · 计算机科学 2025-01-29 Chunpeng Zhou , Qianqian Shen , Zhi Yu , Jiajun Bu , Haishuai Wang

With the rise in scale for deep learning models to billions of parameters, the computational cost of fine-tuning remains a significant barrier to deployment. While Low-Rank Adaptation (LoRA) has become the standard for parameter-efficient…

计算与语言 · 计算机科学 2026-05-11 Ionut-Vlad Modoranu , Mher Safaryan , Dan Alistarh

Large vision-language models (LVLMs) often hallucinate objects that are not present in the input image, largely because visual grounding weakens as decoding progresses. Existing inference-time mitigation methods modify logits or hidden…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Soumyadeep Jana , Pulkit Mittal , Sanasam Ranbir Singh

Fast and efficient AI inference is increasingly important, and recent models that directly learn low-level logic operations have achieved state-of-the-art performance. However, existing logic neural networks incur high training costs,…

机器学习 · 计算机科学 2026-02-04 Lino Gerlach , Thore Gerlach , Liv Våge , Elliott Kauffman , Isobel Ojalvo

Network-oriented research has been increasingly popular in many scientific areas. In neuroscience research, imaging-based network connectivity measures have become the key for understanding brain organizations, potentially serving as…

机器学习 · 统计学 2023-03-14 Yikai Wang , Ying Guo

Fine-tuning helps large language models (LLM) recover degraded information and enhance task performance. Although Low-Rank Adaptation (LoRA) is widely used and effective for fine-tuning, we have observed that its scaling factor can limit or…

Low rank adaptation (LoRA) has emerged as a prominent technique for fine-tuning large language models (LLMs) thanks to its superb efficiency gains over previous methods. While extensive studies have examined the performance and structural…

机器学习 · 计算机科学 2025-05-20 Zi Liang , Haibo Hu , Qingqing Ye , Yaxin Xiao , Ronghua Li