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Unsupervised sentence embedding aims to obtain the most appropriate embedding for a sentence to reflect its semantic. Contrastive learning has been attracting developing attention. For a sentence, current models utilize diverse data…

Computation and Language · Computer Science 2022-03-03 Hao Wang , Yangguang Li , Zhen Huang , Yong Dou , Lingpeng Kong , Jing Shao

Scientific claim verification against tables typically requires predicting whether a claim is supported or refuted given a table. However, we argue that predicting the final label alone is insufficient: it reveals little about the model's…

Computation and Language · Computer Science 2025-09-18 Xanh Ho , Sunisth Kumar , Yun-Ang Wu , Florian Boudin , Atsuhiro Takasu , Akiko Aizawa

Self-supervised learning has achieved remarkable success in learning visual representations from clean data, yet remains challenging when clean observations are sparse or not available at all. In this paper, we demonstrate that pretrained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Konstantinos Alexis , Giorgos Giannopoulos , Dimitrios Gunopulos

Unsupervised Federated Learning (UFL) aims to collaboratively train a global model across distributed clients without sharing data or accessing label information. Previous UFL works have predominantly focused on representation learning and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Kuangpu Guo , Lijun Sheng , Yongcan Yu , Jian Liang , Zilei Wang , Ran He

Current 3D semi-supervised segmentation methods face significant challenges such as limited consideration of contextual information and the inability to generate reliable pseudo-labels for effective unsupervised data use. To address these…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Sanaz Karimijafarbigloo , Reza Azad , Yury Velichko , Ulas Bagci , Dorit Merhof

Recent works in self-supervised learning have advanced the state-of-the-art by relying on the contrastive learning paradigm, which learns representations by pushing positive pairs, or similar examples from the same class, closer together…

Machine Learning · Computer Science 2022-06-27 Jeff Z. HaoChen , Colin Wei , Adrien Gaidon , Tengyu Ma

We investigate the mechanisms of self-distillation in multi-class classification, particularly in the context of linear probing with fixed feature extractors where traditional feature learning explanations do not apply. Our theoretical…

Machine Learning · Computer Science 2025-02-20 Hyeonsu Jeong , Hye Won Chung

Pre-trained speech language models such as HuBERT and WavLM leverage unlabeled speech data for self-supervised learning and offer powerful representations for numerous downstream tasks. Despite the success of these models, their high…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-24 Yingying Gao , Shilei Zhang , Chao Deng , Junlan Feng

Recent studies have demonstrated that vision models can effectively learn multimodal audio-image representations when paired. However, the challenge of enabling deep models to learn representations from unpaired modalities remains…

Sound · Computer Science 2025-04-15 Yasar Abbas Ur Rehman , Kin Wai Lau , Yuyang Xie , Ma Lan , JiaJun Shen

Instance segmentation demands costly per-pixel annotations and computationally expensive models. We introduce CAST, a semi-supervised knowledge distillation (SSKD) framework that compresses pre-trained vision foundation models (VFM) into…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Pardis Taghavi , Tian Liu , Renjie Li , Reza Langari , Zhengzhong Tu

We present an automated way to evaluate the text alignment of text-to-image generative diffusion models using standard image-text recognition datasets. Our method, called SelfEval, uses the generative model to compute the likelihood of real…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Sai Saketh Rambhatla , Ishan Misra

Large language models (LLMs) are systematically overconfident: they routinely express high certainty on questions they often answer incorrectly. Existing calibration methods either require labeled validation data, degrade under distribution…

Computation and Language · Computer Science 2026-04-14 Mohamed Rissal Hedna , Jan Strich , Martin Semmann , Chris Biemann

Despite the outstanding success of self-supervised pretraining methods for video representation learning, they generalise poorly when the unlabeled dataset for pretraining is small or the domain difference between unlabelled data in source…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Amirhossein Dadashzadeh , Alan Whone , Majid Mirmehdi

Speculative decoding (SD) accelerates large language model inference by employing a faster draft model for generating multiple tokens, which are then verified in parallel by the larger target model, resulting in the text generated according…

Large language models show that simple autoregressive training can yield scalable and coherent generation, but extending this paradigm to speech remains challenging due to the entanglement of semantic and acoustic information. Most existing…

Machine Learning · Computer Science 2026-03-06 Luca Della Libera , Cem Subakan , Mirco Ravanelli

This paper introduces a novel Self-supervised Fine-grained Dialogue Evaluation framework (SelF-Eval). The core idea is to model the correlation between turn quality and the entire dialogue quality. We first propose a novel automatic data…

Computation and Language · Computer Science 2022-09-19 Longxuan Ma , Ziyu Zhuang , Weinan Zhang , Mingda Li , Ting Liu

Self-supervised pretraining (SSP) has been recognized as a method to enhance prediction accuracy in various downstream tasks. However, its efficacy for DNA sequences remains somewhat constrained. This limitation stems primarily from the…

Machine Learning · Computer Science 2024-05-15 Tong Yu , Lei Cheng , Ruslan Khalitov , Erland Brandser Olsson , Zhirong Yang

Self-training has been shown to be helpful in addressing data scarcity for many domains, including vision, speech, and language. Specifically, self-training, or pseudo-labeling, labels unsupervised data and adds that to the training pool.…

Computation and Language · Computer Science 2022-12-21 Mozhdeh Gheini , Tatiana Likhomanenko , Matthias Sperber , Hendra Setiawan

In contrastive self-supervised learning, the common way to learn discriminative representation is to pull different augmented "views" of the same image closer while pushing all other images further apart, which has been proven to be…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Kaiyou Song , Shan Zhang , Zihao An , Zimeng Luo , Tong Wang , Jin Xie

As GAN-based video and image manipulation technologies become more sophisticated and easily accessible, there is an urgent need for effective deepfake detection technologies. Moreover, various deepfake generation techniques have emerged…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Minha Kim , Shahroz Tariq , Simon S. Woo