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Clustering tabular data is a fundamental yet challenging problem due to heterogeneous feature types, diverse data-generating mechanisms, and the absence of transferable inductive biases across datasets. Prior-fitted networks (PFNs) have…

Machine Learning · Computer Science 2026-05-15 Tianqi Zhao , Guanyang Wang , Yan Shuo Tan , Qiong Zhang

Large Language models (LLMs) have achieved encouraging results in tabular data generation. However, existing approaches require fine-tuning, which is computationally expensive. This paper explores an alternative: prompting a fixed LLM with…

Machine Learning · Computer Science 2025-02-25 Liancheng Fang , Aiwei Liu , Hengrui Zhang , Henry Peng Zou , Weizhi Zhang , Philip S. Yu

Context parallelism (CP) has been widely adopted to support the growing context length in foundation model pretraining. However, existing designs fail to handle the large variation in sequence length from training datasets, resulting in…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-12 Yilong Zhao , Xiaonan Nie , Kan Zhu , Shuang Ma , Zhichao Lai , Hongxiang Hao , Yang Zhou , Baris Kasikci , Ion Stoica

Progress on training and architecture strategies has enabled LLMs with millions of tokens in context length. However, empirical evidence suggests that such long-context LLMs can consume far more text than they can reliably use. On the other…

Rapid advances in Large Language Models (LLMs) have spurred demand for processing extended context sequences in contemporary applications. However, this progress faces two challenges: performance degradation due to sequence lengths…

Computation and Language · Computer Science 2025-10-10 Wei Wu , Zhuoshi Pan , Chao Wang , Liyi Chen , Yunchu Bai , Tianfu Wang , Kun Fu , Zheng Wang , Hui Xiong

TabPFN has recently gained attention as a foundation model for tabular datasets, achieving strong performance by leveraging in-context learning on synthetic data. However, we find that TabPFN is vulnerable to label shift, often overfitting…

Machine Learning · Computer Science 2026-05-26 Seunghan Lee

As industrial systems become more complex and monitoring sensors for everything from surveillance to our health become more ubiquitous, multivariate time series prediction is taking an important place in the smooth-running of our society. A…

Machine Learning · Computer Science 2022-03-03 Fan Jin , Ke Zhang , Yipan Huang , Yifei Zhu , Baiping Chen

Large pre-training language models (PLMs) have shown promising in-context learning abilities. However, due to the backbone transformer architecture, existing PLMs are bottlenecked by the memory and computational cost when scaling up to a…

Computation and Language · Computer Science 2023-02-13 Mukai Li , Shansan Gong , Jiangtao Feng , Yiheng Xu , Jun Zhang , Zhiyong Wu , Lingpeng Kong

Test-Time Training (TTT) models context dependencies by adapting part of the model's weights (referred to as fast weights) during inference. This fast weight, akin to recurrent states in RNNs, stores temporary memories of past tokens in the…

Machine Learning · Computer Science 2025-06-02 Tianyuan Zhang , Sai Bi , Yicong Hong , Kai Zhang , Fujun Luan , Songlin Yang , Kalyan Sunkavalli , William T. Freeman , Hao Tan

The ability to train generative models that produce realistic, safe and useful tabular data is essential for data privacy, imputation, oversampling, explainability or simulation. However, generating tabular data is not straightforward due…

Machine Learning · Computer Science 2025-09-18 G. Charbel N. Kindji , Lina Maria Rojas-Barahona , Elisa Fromont , Tanguy Urvoy

Supervised classification for tabular data remains a core machine learning task, yet its reliance on large labeled datasets limits applicability in data-scarce domains. For such few-shot scenarios, specialized methods like TabPFN - a…

Machine Learning · Computer Science 2026-05-26 Daria Grushina , Kseniia Kuvshinova , Alina Kostromina , Aziz Temirkhanov , Mile Mitrovic , Dmitry Simakov

Large language models (LLMs) perform remarkably well on tabular datasets in zero- and few-shot settings, since they can extract meaning from natural language column headers that describe features and labels. Similarly, TabPFN, a recent…

Long context fine-tuning of large language models(LLMs) involves training on datasets that are predominantly composed of short sequences and a small proportion of longer sequences. However, existing approaches overlook this long-tail…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-14 Xiulong Yuan , Hongtao Xu , Wenting Shen , Ang Wang , Xiafei Qiu , Jie Zhang , Yuqiong Liu , Bowen Yu , Junyang Lin , Mingzhen Li , Weile Jia , Yong Li , Wei Lin

Discrete diffusion language models have emerged as a competitive alternative to auto-regressive language models, but training them efficiently under limited parameter and memory budgets remains challenging. Modern architectures are…

Computation and Language · Computer Science 2026-04-07 Zihao Wu , Haoming Yang , Juncheng Dong , Vahid Tarokh

We present a large autoregressive model for source-space MEG that scales next-token prediction to long context across datasets and scanners: handling a corpus of over 500 hours and thousands of sessions across the three largest MEG…

Machine Learning · Computer Science 2026-01-30 Richard Csaky

The ability of Large Language Models (LLMs) to process and generate coherent text is markedly weakened when the number of input tokens exceeds their pretraining length. Given the expensive overhead of finetuning large-scale models with…

Computation and Language · Computer Science 2024-05-30 Chenxin An , Fei Huang , Jun Zhang , Shansan Gong , Xipeng Qiu , Chang Zhou , Lingpeng Kong

While modern Transformer-based language models (LMs) have achieved major success in multi-task generalization, they often struggle to capture long-range dependencies within their context window. This work introduces a novel approach using…

Computation and Language · Computer Science 2025-09-23 Alok N. Shah , Khush Gupta , Keshav Ramji , Pratik Chaudhari

Data in tabular format is frequently occurring in real-world applications. Graph Neural Networks (GNNs) have recently been extended to effectively handle such data, allowing feature interactions to be captured through representation…

Machine Learning · Computer Science 2024-08-14 Amr Alkhatib , Sofiane Ennadir , Henrik Boström , Michalis Vazirgiannis

Active learning (AL) reduces labeling cost by querying informative samples, but in tabular settings its cold-start gains are often limited because uncertainty estimates are unreliable when models are trained on very few labels. Tabular…

Machine Learning · Computer Science 2026-03-31 Wilailuck Treerath , Fabrizio Pittorino

We present TabMixNN, a flexible PyTorch-based deep learning framework that synthesizes classical mixed-effects modeling with modern neural network architectures for tabular data analysis. TabMixNN addresses the growing need for methods that…

Machine Learning · Computer Science 2026-01-01 Deniz Akdemir