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Data-free quantization (DFQ) recovers the performance of quantized network (Q) without the original data, but generates the fake sample via a generator (G) by learning from full-precision network (P), which, however, is totally independent…

计算机视觉与模式识别 · 计算机科学 2023-03-21 Biao Qian , Yang Wang , Richang Hong , Meng Wang

In Multimodal Language Models (MLMs), the cost of manually annotating high-quality image-text pair data for fine-tuning and alignment is extremely high. While existing multimodal data augmentation frameworks propose ways to augment…

人工智能 · 计算机科学 2024-08-20 Xiaomeng Jin , Jeonghwan Kim , Yu Zhou , Kuan-Hao Huang , Te-Lin Wu , Nanyun Peng , Heng Ji

Multi-Span Question Answering (MSQA) requires models to extract one or multiple answer spans from a given context to answer a question. Prior work mainly focuses on designing specific methods or applying heuristic strategies to encourage…

计算与语言 · 计算机科学 2024-10-23 Jiayi Lin , Chenyang Zhang , Haibo Tong , Dongyu Zhang , Qingqing Hong , Bingxuan Hou , Junli Wang

In this study, we introduce an intelligent Test Time Augmentation (TTA) algorithm designed to enhance the robustness and accuracy of image classification models against viewpoint variations. Unlike traditional TTA methods that…

图像与视频处理 · 电气工程与系统科学 2024-06-14 Efe Ozturk , Mohit Prabhushankar , Ghassan AlRegib

Counterfactual Data Augmentation (CDA) is a commonly used technique for improving robustness in natural language classifiers. However, one fundamental challenge is how to discover meaningful counterfactuals and efficiently label them, with…

计算与语言 · 计算机科学 2023-05-24 Ananth Balashankar , Xuezhi Wang , Yao Qin , Ben Packer , Nithum Thain , Jilin Chen , Ed H. Chi , Alex Beutel

The forecasting skill of numerical weather prediction (NWP) models critically depends on the accurate initial conditions, also known as analysis, provided by data assimilation (DA). Traditional DA methods often face a trade-off between…

Many communication-efficient variants of SGD use gradient quantization schemes. These schemes are often heuristic and fixed over the course of training. We empirically observe that the statistics of gradients of deep models change during…

机器学习 · 计算机科学 2020-10-26 Fartash Faghri , Iman Tabrizian , Ilia Markov , Dan Alistarh , Daniel Roy , Ali Ramezani-Kebrya

We propose an on-the-fly data augmentation method for automatic speech recognition (ASR) that uses alignment information to generate effective training samples. Our method, called Aligned Data Augmentation (ADA) for ASR, replaces…

计算与语言 · 计算机科学 2023-06-13 Tsz Kin Lam , Mayumi Ohta , Shigehiko Schamoni , Stefan Riezler

Aspect sentiment classification (ASC) aims at determining sentiments expressed towards different aspects in a sentence. While state-of-the-art ASC models have achieved remarkable performance, they are recently shown to suffer from the issue…

计算与语言 · 计算机科学 2021-06-01 Fang Ma , Chen Zhang , Dawei Song

This study evaluates a multimodal machine learning framework for predicting treatment outcomes in intracranial aneurysms (IAs). Combining angiographic parametric imaging (API), patient biomarkers, and disease morphology, the framework aims…

No-Reference Point Cloud Quality Assessment (NR-PCQA) still struggles with generalization, primarily due to the scarcity of annotated point cloud datasets. Since the Human Visual System (HVS) drives perceptual quality assessment…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Guohua Zhang , Jian Jin , Meiqin Liu , Chao Yao , Weisi Lin

Data augmentation plays a key role in modern machine learning pipelines. While numerous augmentation strategies have been studied in the context of computer vision and natural language processing, less is known for other data modalities.…

机器学习 · 统计学 2022-05-23 Elliott Gordon-Rodriguez , Thomas P. Quinn , John P. Cunningham

This study introduces a novel data augmentation technique, ADLDA, aimed at mitigating the negative impact of data distribution shifts caused by the data augmentation process in computer vision task. ADLDA partitions augmented data into…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Haonan Wang

Aspect-based sentiment analysis (ABSA) is a fine-grained task of sentiment analysis. To better comprehend long complicated sentences and obtain accurate aspect-specific information, linguistic and commonsense knowledge are generally…

计算与语言 · 计算机科学 2023-03-15 Qihuang Zhong , Liang Ding , Juhua Liu , Bo Du , Hua Jin , Dacheng Tao

We develop a collection of methods for adjusting the predictions of quantile regression to ensure coverage. Our methods are model agnostic and can be used to correct for high-dimensional overfitting bias with only minimal assumptions.…

统计方法学 · 统计学 2025-11-10 Isaac Gibbs , John J. Cherian , Emmanuel J. Candès

Unsupervised aspect detection (UAD) aims at automatically extracting interpretable aspects and identifying aspect-specific segments (such as sentences) from online reviews. However, recent deep learning-based topic models, specifically…

计算与语言 · 计算机科学 2021-01-01 Tian Shi , Liuqing Li , Ping Wang , Chandan K. Reddy

Aspect Based Sentiment Analysis (ABSA) is the task of identifying sentiment polarity of a text given another text segment or aspect. In ABSA, a text can have multiple sentiments depending upon each aspect. Aspect Term Sentiment Analysis…

计算与语言 · 计算机科学 2020-05-05 Avinash Madasu , Vijjini Anvesh Rao

Active Test-Time Adaptation (ATTA) improves model robustness under domain shift by selectively querying human annotations at deployment, but existing methods use heuristic uncertainty measures and suffer from low data selection efficiency,…

机器学习 · 计算机科学 2025-10-01 Tingyu Shi , Fan Lyu , Shaoliang Peng

Aspect-based sentiment classification is a crucial problem in fine-grained sentiment analysis, which aims to predict the sentiment polarity of the given aspect according to its context. Previous works have made remarkable progress in…

计算与语言 · 计算机科学 2023-08-23 Xueyi Liu , Rui Hou , Yanglei Gan , Da Luo , Changlin Li , Xiaojun Shi , Qiao Liu

Aspect-based sentiment analysis (ABSA) garnered growing research interest in multilingual contexts in the past. However, the majority of the studies lack more robust feature alignment and finer aspect-level alignment. In this paper, we…

计算与语言 · 计算机科学 2026-04-13 Chengyan Wu , Bolei Ma , Ningyuan Deng , Yanqing He , Yun Xue , Xiaoyong Liu