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相关论文: Task Expansion and Cross Refinement for Open-World…

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We introduce the task of entity-centric query refinement. Given an input query whose answer is a (potentially large) collection of entities, the task output is a small set of query refinements meant to assist the user in efficient domain…

计算与语言 · 计算机科学 2022-09-19 David Wadden , Nikita Gupta , Kenton Lee , Kristina Toutanova

Off-road semantic segmentation is fundamentally challenged by irregular terrain, vegetation clutter, and inherent annotation ambiguity. Unlike urban scenes with crisp object boundaries, off-road environments exhibit strong class-level…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Seongkyu Choi Jhonghyun An

Recommendation model performance is intrinsically tied to the quality, volume, and relevance of their training data. To address common challenges like data sparsity and cold start, recent researchs have leveraged data from multiple…

人工智能 · 计算机科学 2026-04-01 Jiaqing Zhang , Mingjia Yin , Hao Wang , Yuxin Tian , Yuyang Ye , Yawen Li , Wei Guo , Yong Liu , Enhong Chen

Long-context modeling is one of the critical capabilities of language AI for digesting and reasoning over complex information pieces. In practice, long-context capabilities are typically built into a pre-trained language model~(LM) through…

计算与语言 · 计算机科学 2024-10-15 Luyu Gao , Yunyi Zhang , Jamie Callan

There has been great progress in unifying various table-to-text tasks using a single encoder-decoder model trained via multi-task learning (Xie et al., 2022). However, existing methods typically encode task information with a simple dataset…

计算与语言 · 计算机科学 2022-12-20 Jifan Chen , Yuhao Zhang , Lan Liu , Rui Dong , Xinchi Chen , Patrick Ng , William Yang Wang , Zhiheng Huang

Injecting world knowledge into pretrained multimodal large language models (MLLMs) is essential for domain-specific applications. Task-specific fine-tuning achieves this by tailoring MLLMs to high-quality in-domain data but encounters…

多媒体 · 计算机科学 2026-03-31 Xiao An , Jiaxing Sun , Ting Hu , Wei He

Retrieval-augmented generation (RAG) connects large language models (LLMs) to external knowledge, but single-round retrieval is often insufficient for complex multi-hop questions. To enhance search capabilities for complex tasks, most…

计算与语言 · 计算机科学 2026-05-27 Kun Chen , Qingchao Kong , Zhao Feifei , Wenji Mao

Query expansion is an effective approach for mitigating vocabulary mismatch between queries and documents in information retrieval. One recent line of research uses language models to generate query-related contexts for expansion. Along…

计算与语言 · 计算机科学 2022-10-14 Linqing Liu , Minghan Li , Jimmy Lin , Sebastian Riedel , Pontus Stenetorp

Text-to-image diffusion models have advanced towards more controllable generation via supporting various additional conditions (e.g.,depth map, bounding box) beyond text. However, these models are learned based on the premise of perfect…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Luozhou Wang , Guibao Shen , Wenhang Ge , Guangyong Chen , Yijun Li , Ying-cong Chen

Reliable confidence estimation for deep neural classifiers is a challenging yet fundamental requirement in high-stakes applications. Unfortunately, modern deep neural networks are often overconfident for their erroneous predictions. In this…

机器学习 · 计算机科学 2023-03-31 Fei Zhu , Zhen Cheng , Xu-Yao Zhang , Cheng-Lin Liu

Dealing with tabular data is challenging due to partial information, noise, and heterogeneous structure. Existing techniques often struggle to simultaneously address key aspects of tabular data such as textual information, a variable number…

机器学习 · 计算机科学 2025-06-10 Wei Min Loh , Jiaqi Shang , Pascal Poupart

Offline meta reinforcement learning (OMRL) has emerged as a promising approach for interaction avoidance and strong generalization performance by leveraging pre-collected data and meta-learning techniques. Previous context-based approaches…

机器学习 · 计算机科学 2025-02-04 Hai Zhang , Boyuan Zheng , Tianying Ji , Jinhang Liu , Anqi Guo , Junqiao Zhao , Lanqing Li

The goal of optimization-based meta-learning is to find a single initialization shared across a distribution of tasks to speed up the process of learning new tasks. Conditional meta-learning seeks task-specific initialization to better…

机器学习 · 计算机科学 2020-10-20 Ruohan Wang , Yiannis Demiris , Carlo Ciliberto

Standard meta-learning for representation learning aims to find a common representation to be shared across multiple tasks. The effectiveness of these methods is often limited when the nuances of the tasks' distribution cannot be captured…

机器学习 · 计算机科学 2021-03-31 Giulia Denevi , Massimiliano Pontil , Carlo Ciliberto

Environment annotations are essential for the success of many out-of-distribution (OOD) generalization methods. Unfortunately, these are costly to obtain and often limited by human annotators' biases. To achieve robust generalization, it is…

机器学习 · 计算机科学 2024-07-22 Mohammad Pezeshki , Diane Bouchacourt , Mark Ibrahim , Nicolas Ballas , Pascal Vincent , David Lopez-Paz

Recent advancements in deep neural networks have markedly enhanced the performance of computer vision tasks, yet the specialized nature of these networks often necessitates extensive data and high computational power. Addressing these…

计算机视觉与模式识别 · 计算机科学 2024-01-03 Jiayou Chao , Wei Zhu

The advancement of remote sensing, including satellite systems, facilitates the continuous acquisition of remote sensing imagery globally, introducing novel challenges for achieving open-world tasks. Deployed models need to continuously…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Xiang Xiang , Zhuo Xu , Yao Deng , Qinhao Zhou , Yifan Liang , Ke Chen , Qingfang Zheng , Yaowei Wang , Xilin Chen , Wen Gao

A learning task, understood as the problem of fitting a parametric model from supervised data, fundamentally requires the dataset to be large enough to be representative of the underlying distribution of the source. When data is limited,…

Trajectory optimizers for model-based reinforcement learning, such as the Cross-Entropy Method (CEM), can yield compelling results even in high-dimensional control tasks and sparse-reward environments. However, their sampling inefficiency…

State-of-the-art Machine Reading Comprehension (MRC) models for Open-domain Question Answering (QA) are typically trained for span selection using distantly supervised positive examples and heuristically retrieved negative examples. This…

计算与语言 · 计算机科学 2020-10-22 Srinivasan Iyer , Sewon Min , Yashar Mehdad , Wen-tau Yih