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Retrieval-augmented generation (RAG) has shown impressive capability in providing reliable answer predictions and addressing hallucination problems. A typical RAG implementation uses powerful retrieval models to extract external information…

信息检索 · 计算机科学 2024-11-19 Ziwei Liu , Liang Zhang , Qian Li , Jianghua Wu , Guangxu Zhu

Retrieval-Augmented Generation (RAG) is a powerful technique for enriching Large Language Models (LLMs) with external knowledge, allowing for factually grounded responses, a critical requirement in high-stakes domains such as healthcare.…

计算与语言 · 计算机科学 2025-10-07 Eduardo Martínez Rivera , Filippo Menolascina

In the field of Material Science, effective information retrieval systems are essential for facilitating research. Traditional Retrieval-Augmented Generation (RAG) approaches in Large Language Models (LLMs) often encounter challenges such…

信息检索 · 计算机科学 2024-12-03 Radeen Mostafa , Mirza Nihal Baig , Mashaekh Tausif Ehsan , Jakir Hasan

Cross-lingual cross-modal retrieval has garnered increasing attention recently, which aims to achieve the alignment between vision and target language (V-T) without using any annotated V-T data pairs. Current methods employ machine…

计算机视觉与模式识别 · 计算机科学 2024-02-02 Yabing Wang , Fan Wang , Jianfeng Dong , Hao Luo

Accelerated Cardiovascular Magnetic Resonance (CMR) image reconstruction remains a critical challenge due to the trade-off between scan time and image quality, particularly when generalizing across diverse acquisition settings. We propose…

图像与视频处理 · 电气工程与系统科学 2025-10-30 Kian Anvari Hamedani , Narges Razizadeh , Shahabedin Nabavi , Mohsen Ebrahimi Moghaddam

Retrieval Augmented Generation (RAG) systems often struggle with domain-specific knowledge due to performance deterioration of pre-trained embeddings and prohibitive computational costs of large language model (LLM)-based retrievers. While…

信息检索 · 计算机科学 2025-09-15 Yao Zhao , Yantian Ding , Zhiyue Zhang , Dapeng Yao , Yanxun Xu

Generative retrieval is a promising new neural retrieval paradigm that aims to optimize the retrieval pipeline by performing both indexing and retrieval with a single transformer model. However, this new paradigm faces challenges with…

信息检索 · 计算机科学 2023-06-21 Thong Nguyen , Andrew Yates

While various models and computational tools have been proposed for structure and property analysis of molecules, generating molecules that conform to all desired structures and properties remains a challenge. Here, we introduce a…

Deep metric learning applied to various applications has shown promising results in identification, retrieval and recognition. Existing methods often do not consider different granularity in visual similarity. However, in many domain…

计算机视觉与模式识别 · 计算机科学 2021-05-17 Dipu Manandhar , Muhammet Bastan , Kim-Hui Yap

Retrieval-augmented generation (RAG) is a common way to ground language models in external documents and up-to-date information. Classical retrieval systems relied on lexical methods such as BM25, which rank documents by term overlap with…

计算与语言 · 计算机科学 2026-03-05 Martin Asenov , Kenza Benkirane , Dan Goldwater , Aneiss Ghodsi

We explore Multimodal Large Language Models (MLLMs), which integrate LLMs like GPT-4 to handle multimodal data, including text, images, audio, and more. MLLMs demonstrate capabilities such as generating image captions and answering…

计算与语言 · 计算机科学 2025-01-09 Shezheng Song , Xiaopeng Li , Shasha Li , Shan Zhao , Jie Yu , Jun Ma , Xiaoguang Mao , Weimin Zhang

Discovering new materials better suited to specific purposes is an important issue in improving the quality of human life. Here, a neural network that creates molecules that meet some desired conditions based on a deep understanding of…

机器学习 · 计算机科学 2022-02-15 Hyunseung Kim , Jonggeol Na , Won Bo Lee

Generative retrieval introduces a groundbreaking paradigm to document retrieval by directly generating the identifier of a pertinent document in response to a specific query. This paradigm has demonstrated considerable benefits and…

信息检索 · 计算机科学 2024-10-28 Mingming Li , Huimu Wang , Zuxu Chen , Guangtao Nie , Yiming Qiu , Guoyu Tang , Lin Liu , Jingwei Zhuo

Tandem mass spectra capture fragmentation patterns that provide key structural information about a molecule. Although mass spectrometry is applied in many areas, the vast majority of small molecules lack experimental reference spectra. For…

机器学习 · 计算机科学 2023-05-03 Adamo Young , Bo Wang , Hannes Röst

Cross-modal medical image-report retrieval task plays a significant role in clinical diagnosis and various medical generative tasks. Eliminating heterogeneity between different modalities to enhance semantic consistency is the key challenge…

计算机视觉与模式识别 · 计算机科学 2025-05-21 Zeqiang Wei , Kai Jin , Xiuzhuang Zhou

Open-domain question answering (QA) tasks usually require the retrieval of relevant information from a large corpus to generate accurate answers. We propose a novel approach called Generator-Retriever-Generator (GRG) that combines document…

计算与语言 · 计算机科学 2024-03-27 Abdelrahman Abdallah , Adam Jatowt

Large Language Models (LLMs) often suffer from hallucinations, which Retrieval-Augmented Generation (RAG) and GraphRAG mitigate by incorporating external knowledge and knowledge graphs (KGs). However, GraphRAG remains text-centric due to…

人工智能 · 计算机科学 2026-03-11 Xueyao Wan , Hang Yu

Large language models (LLMs) have recently become the leading source of answers for users' questions online. Despite their ability to offer eloquent answers, their accuracy and reliability can pose a significant challenge. This is…

We develop a combined machine learning (ML) and quantum mechanics approach that enables data-efficient reconstruction of flexible molecular force fields from high-level ab initio calculations, through the consideration of fundamental…

计算物理 · 物理学 2021-04-14 Stefan Chmiela , Huziel E. Sauceda , Alexandre Tkatchenko , Klaus-Robert Müller

Embedding-based retrieval models have made significant strides in retrieval-augmented generation (RAG) techniques for text and multimodal large language models (LLMs) applications. However, when it comes to speech larage language models…

音频与语音处理 · 电气工程与系统科学 2025-12-11 Chunyu Sun , Bingyu Liu , Zhichao Cui , Junhan Shi , Anbin Qi , Tian-hao Zhang , Dinghao Zhou , Lewei Lu