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Amortized meta-learning methods based on pre-training have propelled fields like natural language processing and vision. Transformer-based neural processes and their variants are leading models for probabilistic meta-learning with a…

Machine Learning · Statistics 2025-03-06 Paul E. Chang , Nasrulloh Loka , Daolang Huang , Ulpu Remes , Samuel Kaski , Luigi Acerbi

LLM-as-a-judge ensembles are the standard paradigm for scalable evaluation, but their aggregation mechanisms suffer from a fundamental flaw: they implicitly assume that judges provide independent estimates of true quality. However, in…

Machine Learning · Computer Science 2026-03-03 Jitian Zhao , Changho Shin , Tzu-Heng Huang , Satya Sai Srinath Namburi GNVV , Frederic Sala

Grading SQL queries can be a time-consuming, tedious and challenging task, especially as the number of student submissions increases. Several systems have been introduced in an attempt to mitigate these challenges, but those systems have…

Computers and Society · Computer Science 2024-06-25 Donald R. Schwartz , Pablo Rivas

Classic variational autoencoders are used to learn complex data distributions, that are built on standard function approximators. Especially, VAE has shown promise on a lot of complex task. In this paper, a new autoencoder model -…

Computer Vision and Pattern Recognition · Computer Science 2020-01-13 Qiuyu Zhu , Ruixin Zhang

Deep search agents, which aim to answer complex questions requiring reasoning across multiple documents, can significantly speed up the information-seeking process. Collecting human annotations for this application is prohibitively…

Artificial Intelligence · Computer Science 2026-01-27 Fangyuan Xu , Rujun Han , Yanfei Chen , Zifeng Wang , I-Hung Hsu , Jun Yan , Vishy Tirumalashetty , Eunsol Choi , Tomas Pfister , Chen-Yu Lee

This paper studies continual learning (CL) of a sequence of aspect sentiment classification(ASC) tasks in a particular CL setting called domain incremental learning (DIL). Each task is from a different domain or product. The DIL setting is…

Computation and Language · Computer Science 2021-12-21 Zixuan Ke , Bing Liu , Hu Xu , Lei Shu

Adapting LLMs with new knowledge is increasingly important, but standard fine-tuning often erodes aligned epistemic abstention: the ability to acknowledge when the model does not know. This failure mode is especially concerning in…

Artificial Intelligence · Computer Science 2026-04-22 William F. Shen , Xinchi Qiu , Nicola Cancedda , Nicholas D. Lane

Stochastic partial differential equations (SPDEs) describe the evolution of random processes over space and time, but their solutions are often analytically intractable and computationally expensive to estimate. In this paper, we propose…

Machine Learning · Computer Science 2025-08-12 Ísak Pétursson , María Óskarsdóttir

In this paper, we proposed VeSC-CoL (Version Space Cardinality based Concept Learning) to deal with concept learning on extremely imbalanced datasets, especially when cross-validation is not a viable option. VeSC-CoL uses version space…

Artificial Intelligence · Computer Science 2018-03-26 Kuo-Kai Hsieh , Li-C. Wang

Using the maximum entropy method, we derive the "adaptive cluster expansion" (ACE), which can be trained to estimate probability density functions in high dimensional spaces. The main advantage of ACE over other Bayesian networks is its…

Neural and Evolutionary Computing · Computer Science 2007-05-23 Stephen Luttrell

Scientific Machine Learning (SciML) is concerned with the development of learned emulators of physical systems governed by partial differential equations (PDE). In application domains such as weather forecasting, molecular dynamics, and…

Machine Learning · Computer Science 2023-07-24 Makoto Takamoto , Francesco Alesiani , Mathias Niepert

Cardinality estimation is a fundamental task in database systems and plays a critical role in query optimization. Despite significant advances in learning-based cardinality estimation methods, most existing approaches remain difficult to…

Databases · Computer Science 2025-10-10 Xianghong Xu , Rong Kang , Xiao He , Lei Zhang , Jianjun Chen , Tieying Zhang

Supervised machine learning and deep learning require a large amount of labeled data, which data scientists obtain in a manual, and time-consuming annotation process. To mitigate this challenge, Active Learning (AL) proposes promising data…

Computation and Language · Computer Science 2023-08-08 Philipp Kohl , Nils Freyer , Yoka Krämer , Henri Werth , Steffen Wolf , Bodo Kraft , Matthias Meinecke , Albert Zündorf

Channel and spatial attention mechanisms introduced by earlier works enhance the representation abilities of deep convolutional neural networks (CNNs) but often lead to increased parameter and computation costs. While recent approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Rishabh Sabharwal , Ram Samarth B B , Parikshit Singh Rathore , Punit Rathore

Cold-start active learning (CSAL) selects valuable instances from an unlabeled dataset for manual annotation. It provides high-quality data at a low annotation cost for label-scarce text classification. However, existing CSAL methods…

Computation and Language · Computer Science 2025-02-04 Jiaxin Guo , C. L. Philip Chen , Shuzhen Li , Tong Zhang

Joint entity and relation extraction is the fundamental task of information extraction, consisting of two subtasks: named entity recognition and relation extraction. However, most existing joint extraction methods suffer from issues of…

Computation and Language · Computer Science 2024-03-28 Wenjun Kong , Yamei Xia

Relational database management systems (RDBMS) are widely used for the storage of structured data. To derive insights beyond statistical aggregation, we typically have to extract specific subdatasets from the database using conventional…

Databases · Computer Science 2024-11-05 Lingze Zeng , Naili Xing , Shaofeng Cai , Gang Chen , Beng Chin Ooi , Jian Pei , Yuncheng Wu

Spectral clustering is a popular tool in network data analysis, with applications in a variety of scientific application areas. However, many studies have shown that classical spectral clustering does not perform well on certain network…

Methodology · Statistics 2026-03-31 Sinyoung Park , Matthew Nunes , Sandipan Roy

Rehearsal-based Continual Learning (CL) maintains a limited memory buffer to store replay samples for knowledge retention, making these approaches heavily reliant on the quality of the stored samples. Current Rehearsal-based CL methods…

Machine Learning · Computer Science 2025-11-13 Junqi Gao , Zhichang Guo , Dazhi Zhang , Yao Li , Yi Ran , Biqing Qi

Minimizing computational overhead in time-series classification, particularly in deep learning models, presents a significant challenge. This challenge is further compounded by adversarial attacks, emphasizing the need for resilient methods…

Machine Learning · Computer Science 2025-03-12 Cagla Ipek Kocal , Onat Gungor , Aaron Tartz , Tajana Rosing , Baris Aksanli