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Supervised fine-tuning (SFT) of large language models (LLMs) for specialized tasks requires high-quality datasets, but manual curation is prohibitively expensive. Synthetic data generation offers scalability, but its effectiveness relies on…

机器学习 · 计算机科学 2025-11-13 Shuzhen Bi , Chang Song , Siyu Song , Jinze Lv , Jian Chen , Xinyun Wang , Aimin Zhou , Hao Hao

The development of clinical-grade artificial intelligence in pathology is limited by the scarcity of diverse, high-quality annotated datasets. Generative models offer a potential solution but suffer from semantic instability and…

Large language models (LLMs) inevitably exhibit hallucinations since the accuracy of generated texts cannot be secured solely by the parametric knowledge they encapsulate. Although retrieval-augmented generation (RAG) is a practicable…

计算与语言 · 计算机科学 2024-10-08 Shi-Qi Yan , Jia-Chen Gu , Yun Zhu , Zhen-Hua Ling

The success of large language models (LLMs) depends heavily on large-scale, high-quality instruction-following and reinforcement datasets. However, generating such data through human annotation is prohibitively time-consuming particularly…

计算与语言 · 计算机科学 2026-02-02 Chenhua Shi , Gregor Macdonald , Bhavika Jalli , Wanlu Lei , John Zou , Mridul Jain , Joji Philip

It is often desirable to distill the capabilities of large language models (LLMs) into smaller student models due to compute and memory constraints. One way to do this for classification tasks is via dataset synthesis, which can be…

计算与语言 · 计算机科学 2024-11-14 Abhishek Divekar , Greg Durrett

Augmenting large language models (LLMs) with external tools is a promising approach to enhance their capabilities, especially for complex tasks. Synthesizing tool-use data through real-world simulations is an effective way to achieve this.…

计算与语言 · 计算机科学 2025-11-10 Yirong Zeng , Xiao Ding , Yuxian Wang , Weiwen Liu , Wu Ning , Yutai Hou , Xu Huang , Duyu Tang , Dandan Tu , Bing Qin , Ting Liu

Transfer learning has become a popular task adaptation method in the era of foundation models. However, many foundation models require large storage and computing resources, which makes off-the-shelf deployment impractical. Post-training…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Jung Hwan Heo , Seyedarmin Azizi , Arash Fayyazi , Massoud Pedram

Large language models (LLMs) have shown impressive performance on general-purpose tasks, yet adapting them to specific domains remains challenging due to the scarcity of high-quality domain data. Existing data synthesis tools often struggle…

计算与语言 · 计算机科学 2025-07-08 Ziyang Miao , Qiyu Sun , Jingyuan Wang , Yuchen Gong , Yaowei Zheng , Shiqi Li , Richong Zhang

Retrieval-Augmented Generation (RAG) systems face significant performance gaps when applied to technical domains requiring precise information extraction from complex documents. Current evaluation methodologies relying on document-level…

机器学习 · 计算机科学 2025-02-25 Aryan Jadon , Avinash Patil , Shashank Kumar

Representation Fine-tuning (ReFT), a recently proposed Parameter-Efficient Fine-Tuning (PEFT) method, has attracted widespread attention for significantly improving parameter efficiency by editing representation space alone. In this work,…

计算与语言 · 计算机科学 2025-07-15 Chenxi Huang , Shaotian Yan , Liang Xie , Binbin Lin , Sinan Fan , Yue Xin , Deng Cai , Chen Shen , Jieping Ye

Humans are able to perceive, understand and reason about causal events. Developing models with similar physical and causal understanding capabilities is a long-standing goal of artificial intelligence. As a step towards this direction, we…

Person retrieval has attracted rising attention. Existing methods are mainly divided into two retrieval modes, namely image-only and text-only. However, they are unable to make full use of the available information and are difficult to meet…

计算机视觉与模式识别 · 计算机科学 2025-05-21 Delong Liu , Haiwen Li , Zhaohui Hou , Zhicheng Zhao , Fei Su , Yuan Dong

Open-loop imitation learning has advanced modern autonomous driving policy architectures, but closed-loop deployment remains vulnerable to policy-induced distribution shift. Existing post-training paradigms exhibit fundamental trade-offs:…

机器学习 · 计算机科学 2026-05-07 Keyu Chen , Nanfei Ye , Yida Wang , Wenchao Sun , Danqi Zhao , Hao Cheng , Sifa Zheng

Supervised Fine-Tuning (SFT) is essential for training large language models (LLMs), significantly enhancing critical capabilities such as instruction following and in-context learning. Nevertheless, creating suitable training datasets…

计算与语言 · 计算机科学 2025-09-16 Iman Barati , Mostafa Amiri , Heshaam Faili

Training models to high-end performance requires availability of large labeled datasets, which are expensive to get. The goal of our work is to automatically synthesize labeled datasets that are relevant for a downstream task. We propose…

计算机视觉与模式识别 · 计算机科学 2019-04-29 Amlan Kar , Aayush Prakash , Ming-Yu Liu , Eric Cameracci , Justin Yuan , Matt Rusiniak , David Acuna , Antonio Torralba , Sanja Fidler

Data catalogs serve as repositories for organizing and accessing diverse collection of data assets, but their effectiveness hinges on the ease with which business users can look-up relevant content. Unfortunately, many data catalogs within…

信息检索 · 计算机科学 2025-03-13 Mayank Singh , Abhijeet Kumar , Sasidhar Donaparthi , Gayatri Karambelkar

This survey reviews how large language models (LLMs) are transforming synthetic training data generation in both natural language and code domains. By producing artificial but task-relevant examples, these models can significantly augment…

计算与语言 · 计算机科学 2025-11-21 Mihai Nadas , Laura Diosan , Andreea Tomescu

We investigate the usefulness of generative Large Language Models (LLMs) in generating training data for cross-encoder re-rankers in a novel direction: generating synthetic documents instead of synthetic queries. We introduce a new dataset,…

信息检索 · 计算机科学 2023-05-04 Arian Askari , Mohammad Aliannejadi , Evangelos Kanoulas , Suzan Verberne

Pretraining on large-scale, unstructured internet text enables language models to acquire a significant amount of world knowledge. However, this knowledge acquisition is data-inefficient--to learn a given fact, models must be trained on…

机器学习 · 计算机科学 2024-10-04 Zitong Yang , Neil Band , Shuangping Li , Emmanuel Candès , Tatsunori Hashimoto

Imagining a scene described in natural language with realistic layout and appearance of entities is the ultimate test of spatial, visual, and semantic world knowledge. Towards this goal, we present the Composition, Retrieval, and Fusion…

计算机视觉与模式识别 · 计算机科学 2018-04-11 Tanmay Gupta , Dustin Schwenk , Ali Farhadi , Derek Hoiem , Aniruddha Kembhavi