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Pre-trained language models (LMs) perform well in In-Topic setups, where training and testing data come from the same topics. However, they face challenges in Cross-Topic scenarios where testing data is derived from distinct topics -- such…

计算与语言 · 计算机科学 2024-02-05 Andreas Waldis , Yufang Hou , Iryna Gurevych

A crucial aspect in reliable machine learning is to design a deployable system in generalizing new related but unobserved environments. Domain generalization aims to alleviate such a prediction gap between the observed and unseen…

机器学习 · 计算机科学 2021-06-01 Changjian Shui , Boyu Wang , Christian Gagné

Machine learning in materials science faces challenges due to limited experimental data, as generating synthesis data is costly and time-consuming, especially with in-house experiments. Mining data from existing literature introduces issues…

计算物理 · 物理学 2025-03-11 Devi Dutta Biswajeet , Sara Kadkhodaei

Generalization is a central problem in Machine Learning. Indeed most prediction methods require careful calibration of hyperparameters usually carried out on a hold-out \textit{validation} dataset to achieve generalization. The main goal of…

机器学习 · 统计学 2021-02-18 Karim Lounici , Katia Meziani , Benjamin Riu

The impressive capabilities of large language models (LLMs) have sparked debate over whether these models genuinely generalize to unseen tasks or predominantly rely on memorizing vast amounts of pretraining data. To explore this issue, we…

计算与语言 · 计算机科学 2025-03-04 Xinyi Wang , Antonis Antoniades , Yanai Elazar , Alfonso Amayuelas , Alon Albalak , Kexun Zhang , William Yang Wang

We demonstrate that learning procedures that rely on aggregated labels, e.g., label information distilled from noisy responses, enjoy robustness properties impossible without data cleaning. This robustness appears in several ways. In the…

机器学习 · 统计学 2026-05-26 Chen Cheng , John Duchi

Decoding strategies for generative large language models (LLMs) are a critical but often underexplored aspect of text generation tasks. Guided by specific hyperparameters, these strategies aim to transform the raw probability distributions…

计算与语言 · 计算机科学 2024-12-17 Esteban Garces Arias , Meimingwei Li , Christian Heumann , Matthias Aßenmacher

Recent research has revealed that neural language models at scale suffer from poor temporal generalization capability, i.e., the language model pre-trained on static data from past years performs worse over time on emerging data. Existing…

计算与语言 · 计算机科学 2022-11-01 Zhaochen Su , Zecheng Tang , Xinyan Guan , Juntao Li , Lijun Wu , Min Zhang

Recent empirical works have successfully used unlabeled data to learn feature representations that are broadly useful in downstream classification tasks. Several of these methods are reminiscent of the well-known word2vec embedding…

机器学习 · 计算机科学 2019-02-26 Sanjeev Arora , Hrishikesh Khandeparkar , Mikhail Khodak , Orestis Plevrakis , Nikunj Saunshi

Morphologically rich languages often lack the annotated linguistic resources required to develop accurate natural language processing tools. We propose models suitable for training morphological taggers with rich tagsets for low-resource…

计算与语言 · 计算机科学 2016-06-15 Jan Buys , Jan A. Botha

In recent years, the use of large language models (LLMs) for text classification has attracted widespread attention. Despite this, the classification accuracy of LLMs has not yet universally surpassed that of smaller models. LLMs can…

计算与语言 · 计算机科学 2024-12-11 Min Zeng , Caiquan Liu , Shiqi Zhang , Li Xie , Chen Sang , Xiaoxin Chen

Extractive summarization and imbalanced multi-label classification often require vast amounts of training data to avoid overfitting. In situations where training data is expensive to generate, leveraging information between tasks is an…

计算与语言 · 计算机科学 2019-03-19 John Brandt

Masked diffusion language models (MDMs) have recently gained traction as a viable generative framework for natural language. This can be attributed to its scalability and ease of training compared to other diffusion model paradigms for…

计算与语言 · 计算机科学 2025-08-19 Tejomay Kishor Padole , Suyash P Awate , Pushpak Bhattacharyya

Large language models have evolved data-efficient generalists, benefiting from the universal language interface and large-scale pre-training. However, constructing a data-efficient generalist for dense visual prediction presents a distinct…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Donggyun Kim , Seongwoong Cho , Semin Kim , Chong Luo , Seunghoon Hong

Word embedding techniques heavily rely on the abundance of training data for individual words. Given the Zipfian distribution of words in natural language texts, a large number of words do not usually appear frequently or at all in the…

计算与语言 · 计算机科学 2018-11-14 Victor Prokhorov , Mohammad Taher Pilehvar , Dimitri Kartsaklis , Pietro Lio , Nigel Collier

A recently-proposed technique called self-adaptive training augments modern neural networks by allowing them to adjust training labels on the fly, to avoid overfitting to samples that may be mislabeled or otherwise non-representative. By…

机器学习 · 计算机科学 2020-06-16 Daniel Chiu , Franklyn Wang , Scott Duke Kominers

It has been hypothesized that label smoothing can reduce overfitting and improve generalization, and current empirical evidence seems to corroborate these effects. However, there is a lack of mathematical understanding of when and why such…

机器学习 · 计算机科学 2020-10-27 Blair Chen , Liu Ziyin , Zihao Wang , Paul Pu Liang

Generative neural conversational systems are generally trained with the objective of minimizing the entropy loss between the training "hard" targets and the predicted logits. Often, performance gains and improved generalization can be…

计算与语言 · 计算机科学 2021-07-27 Sougata Saha , Souvik Das , Rohini Srihari

Large Language Models (LLMs) rely on various decoding strategies to generate text, and these choices can significantly affect output quality. In healthcare, where accuracy is critical, the impact of decoding strategies remains…

计算与语言 · 计算机科学 2025-08-20 Oriana Presacan , Alireza Nik , Vajira Thambawita , Bogdan Ionescu , Michael Riegler

The widespread adoption of natural language processing techniques has led to an unprecedented growth of text classifiers across the modern web. Yet many of these models circulate with their internal semantics undocumented or even…

机器学习 · 计算机科学 2025-12-02 Mengyao Du , Gang Yang , Han Fang , Quanjun Yin , Ee-chien Chang