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Data vectors are obtained from multiple domains. They are feature vectors of images or vector representations of words. Domains may have different numbers of data vectors with different dimensions. These data vectors from multiple domains…

机器学习 · 统计学 2015-03-31 Hidetoshi Shimodaira

Domain generalization aims to learn a predictive model from multiple different but related source tasks that can generalize well to a target task without the need of accessing any target data. Existing domain generalization methods ignore…

机器学习 · 计算机科学 2022-06-08 William Wei Wang , Gezheng Xu , Ruizhi Pu , Jiaqi Li , Fan Zhou , Changjian Shui , Charles Ling , Christian Gagné , Boyu Wang

As a recent noticeable topic, domain generalization aims to learn a generalizable model on multiple source domains, which is expected to perform well on unseen test domains. Great efforts have been made to learn domain-invariant features by…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Jianxin Lin , Yongqiang Tang , Junping Wang , Wensheng Zhang

We propose a simple domain adaptation method for neural networks in a supervised setting. Supervised domain adaptation is a way of improving the generalization performance on the target domain by using the source domain dataset, assuming…

计算与语言 · 计算机科学 2016-07-05 Yusuke Watanabe , Kazuma Hashimoto , Yoshimasa Tsuruoka

Trustworthiness in model predictions is crucial for safety-critical applications in the real world. However, deep neural networks often suffer from the issues of uncertainty estimation, such as miscalibration. In this study, we propose…

计算与语言 · 计算机科学 2025-02-07 Wataru Hashimoto , Hidetaka Kamigaito , Taro Watanabe

Current supervised cross-domain image retrieval methods can achieve excellent performance. However, the cost of data collection and labeling imposes an intractable barrier to practical deployment in real applications. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Conghui Hu , Gim Hee Lee

Cross-Domain Sequential Recommendation (CDSR) is a hot topic in sequence-based user interest modeling, which aims at utilizing a single model to predict the next items for different domains. To tackle the CDSR, many methods are focused on…

信息检索 · 计算机科学 2024-10-18 Haipeng Li , Jiangxia Cao , Yiwen Gao , Yunhuai Liu , Shuchao Pang

Distributional shift between domains poses great challenges to modern machine learning algorithms. The domain generalization (DG) signifies a popular line targeting this issue, where these methods intend to uncover universal patterns across…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Hao Chen , Qi Zhang , Zenan Huang , Haobo Wang , Junbo Zhao

Performances on standard 3D point cloud benchmarks have plateaued, resulting in oversized models and complex network design to make a fractional improvement. We present an alternative to enhance existing deep neural networks without any…

计算机视觉与模式识别 · 计算机科学 2023-03-02 Renrui Zhang , Liuhui Wang , Ziyu Guo , Jianbo Shi

Approximate $k$-nearest neighbor (AKNN) search is a fundamental problem with wide applications. To reduce memory and accelerate search, vector quantization is widely adopted. However, existing quantization methods either rely on codebooks…

数据库 · 计算机科学 2026-02-04 Mingyu Yang , Liuchang Jing , Wentao Li , Wei Wang

The nearest neighbor problem is defined as follows: Given a set $P$ of $n$ points in some metric space $(X,D)$, build a data structure that, given any point $q$, returns a point in $P$ that is closest to $q$ (its "nearest neighbor" in $P$).…

数据结构与算法 · 计算机科学 2018-06-27 Alexandr Andoni , Piotr Indyk , Ilya Razenshteyn

The emergence of structured databases for Question Answering (QA) systems has led to developing methods, in which the problem of learning the correct answer efficiently is based on a linking task between the constituents of the question and…

机器学习 · 计算机科学 2020-03-05 Hamid Zafar , Maryam Tavakol , Jens Lehmann

Nearest neighbor search is a very active field in machine learning for it appears in many application cases, including classification and object retrieval. In its canonical version, the complexity of the search is linear with both the…

机器学习 · 计算机科学 2017-07-06 Vincent Gripon , Matthias Löwe , Franck Vermet

Adaptation to out-of-distribution data is a meta-challenge for all statistical learning algorithms that strongly rely on the i.i.d. assumption. It leads to unavoidable labor costs and confidence crises in realistic applications. For that,…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Jingye Wang , Ruoyi Du , Dongliang Chang , Kongming Liang , Zhanyu Ma

Standard deep reinforcement learning methods such as Deep Q-Networks (DQN) for multiple tasks (domains) face scalability problems. We propose a method for multi-domain dialogue policy learning---termed NDQN, and apply it to an…

人工智能 · 计算机科学 2021-05-10 Heriberto Cuayáhuitl , Seunghak Yu , Ashley Williamson , Jacob Carse

Domain generalization refers to the problem where we aim to train a model on data from a set of source domains so that the model can generalize to unseen target domains. Naively training a model on the aggregate set of data (pooled from all…

机器学习 · 计算机科学 2022-02-16 A. Tuan Nguyen , Toan Tran , Yarin Gal , Atılım Güneş Baydin

While deep neural networks demonstrate state-of-the-art performance on a variety of learning tasks, their performance relies on the assumption that train and test distributions are the same, which may not hold in real-world applications.…

机器学习 · 计算机科学 2021-02-18 Wenyu Zhang , Mohamed Ragab , Ramon Sagarna

This paper addresses the problem of cross-domain change detection from a novel perspective of image-to-image translation. In general, change detection aims to identify interesting changes between a given query image and a reference image of…

计算机视觉与模式识别 · 计算机科学 2017-12-27 Yamaguchi Kousuke , Tanaka Kanji , Sugimoto Takuma

This work generalizes the problem of unsupervised domain generalization to the case in which no labeled samples are available (completely unsupervised). We are given unlabeled samples from multiple source domains, and we aim to learn a…

机器学习 · 计算机科学 2024-02-01 Amit Rozner , Barak Battash , Lior Wolf , Ofir Lindenbaum

Community Question Answering (CQA) in different domains is growing at a large scale because of the availability of several platforms and huge shareable information among users. With the rapid growth of such online platforms, a massive…

信息检索 · 计算机科学 2024-03-06 Rima Hazra , Debanjan Saha , Amruit Sahoo , Somnath Banerjee , Animesh Mukherjee