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Averaging predictions over a set of models -- an ensemble -- is widely used to improve predictive performance and uncertainty estimation of deep learning models. At the same time, many machine learning systems, such as search, matching, and…

Machine Learning · Computer Science 2021-07-15 Arsenii Ashukha , Andrei Atanov , Dmitry Vetrov

Network structure provides critical information for understanding the dynamic behavior of networks. However, the complete structure of real-world networks is often unavailable, thus it is crucially important to develop approaches to infer a…

Social and Information Networks · Computer Science 2023-01-11 Jin-Zhu Yu , Mincheng Wu , Gisela Bichler , Felipe Aros-Vera , Jianxi Gao

Numerous real-world decisions rely on machine learning algorithms and require calibrated uncertainty estimates. However, modern methods often yield overconfident, uncalibrated predictions. The dominant approach to quantifying the…

Generative model-based deep clustering frameworks excel in classifying complex data, but are limited in handling dynamic and complex features because they require prior knowledge of the number of clusters. In this paper, we propose a…

Machine Learning · Computer Science 2023-11-28 Zhenshan Bing , Yuan Meng , Yuqi Yun , Hang Su , Xiaojie Su , Kai Huang , Alois Knoll

Deep learning approaches such as convolutional neural nets have consistently outperformed previous methods on challenging tasks such as dense, semantic segmentation. However, the various proposed networks perform differently, with behaviour…

Computer Vision and Pattern Recognition · Computer Science 2017-11-07 Konstantinos Kamnitsas , Wenjia Bai , Enzo Ferrante , Steven McDonagh , Matthew Sinclair , Nick Pawlowski , Martin Rajchl , Matthew Lee , Bernhard Kainz , Daniel Rueckert , Ben Glocker

We study the application of variance reduction (VR) techniques to general non-convex stochastic optimization problems. In this setting, the recent work STORM [Cutkosky-Orabona '19] overcomes the drawback of having to compute gradients of…

Machine Learning · Computer Science 2022-09-30 Zijian Liu , Ta Duy Nguyen , Thien Hang Nguyen , Alina Ene , Huy L. Nguyen

Checkpoint merging is a technique for combining multiple model snapshots into a single superior model, potentially reducing training time for large language models. This paper explores checkpoint merging in the context of…

Machine Learning · Computer Science 2025-04-29 Shi Jie Yu , Sehyun Choi

Multi-modal entity alignment (MMEA) aims to identify equivalent entity pairs across different multi-modal knowledge graphs (MMKGs). Existing approaches focus on how to better encode and aggregate information from different modalities.…

Information Retrieval · Computer Science 2024-04-30 Zhiwei Hu , Víctor Gutiérrez-Basulto , Zhiliang Xiang , Ru Li , Jeff Z. Pan

Adapters are light-weight modules that allow parameter-efficient fine-tuning of pretrained models. Specialized language and task adapters have recently been proposed to facilitate cross-lingual transfer of multilingual pretrained models…

Computation and Language · Computer Science 2021-09-13 Xinyi Wang , Yulia Tsvetkov , Sebastian Ruder , Graham Neubig

Recent years have seen a shift towards learning-based methods for trajectory prediction, with challenges remaining in addressing uncertainty and capturing multi-modal distributions. This paper introduces Temporal Ensembling with…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Kai-Yin Hong , Chieh-Chih Wang , Wen-Chieh Lin

A key challenge for decision makers when incorporating black box machine learned models into practice is being able to understand the predictions provided by these models. One proposed set of methods is training surrogate explainer models…

Machine Learning · Computer Science 2020-11-17 Qiaomei Li , Rachel Cummings , Yonatan Mintz

Despite the recent progress made in Video Question-Answering (VideoQA), these methods typically function as black-boxes, making it difficult to understand their reasoning processes and perform consistent compositional reasoning. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Zhaohe Liao , Jiangtong Li , Li Niu , Liqing Zhang

Variation Autoencoder (VAE) has become a powerful tool in modeling the non-linear generative process of data from a low-dimensional latent space. Recently, several studies have proposed to use VAE for unsupervised clustering by using…

Machine Learning · Computer Science 2021-06-29 Qingyu Zhao , Nicolas Honnorat , Ehsan Adeli , Kilian M. Pohl

Estimation of distribution algorithms (EDA) are stochastic optimization algorithms. EDA establishes a probability model to describe the distribution of solution from the perspective of population macroscopically by statistical learning…

Neural and Evolutionary Computing · Computer Science 2020-03-19 Zhenyu Liang , Yunfan Li , Zhongwei Wan

Modern deep learning usually treats models as separate artifacts: trained independently, specialized for particular purposes, and replaced when improved versions appear. This thesis studies model merging as an alternative paradigm:…

Machine Learning · Computer Science 2026-05-05 Donato Crisostomi

Variational Autoencoders (VAEs) have experienced recent success as data-generating models by using simple architectures that do not require significant fine-tuning of hyperparameters. However, VAEs are known to suffer from…

Machine Learning · Statistics 2020-07-22 Wei Cheng , Gregory Darnell , Sohini Ramachandran , Lorin Crawford

Despite the remarkable progress achieved by recent efficient methods in accelerating multimodal understanding, they still suffer from noticeable performance degradation. Their emphasis on the high compression ratio of a single visual clue…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Yinghao Wu , Zhuoyan Luo , Yiyao Yu , Zhaojian Yu , Yujiu Yang , Xiao-Ping Zhang

Model merging aims to combine multiple fine-tuned models into a single set of weights that performs well across all source tasks. While prior work has shown that merging can approximate the performance of individual fine-tuned models for…

Machine Learning · Computer Science 2025-10-17 Mohammadsajad Alipour , Mohammad Mohammadi Amiri

This paper presents Variables Adaptive Mixture of Experts (VAMoE), a novel framework for incremental weather forecasting that dynamically adapts to evolving spatiotemporal patterns in real time data. Traditional weather prediction models…

Machine Learning · Computer Science 2025-07-21 Hao Chen , Han Tao , Guo Song , Jie Zhang , Yunlong Yu , Yonghan Dong , Lei Bai

Sentence representations are foundational to many Natural Language Processing (NLP) applications. While recent methods leverage Large Language Models (LLMs) to derive sentence representations, most rely on final-layer hidden states, which…

Computation and Language · Computer Science 2026-02-03 Yeqin Zhang , Yunfei Wang , Jiaxuan Chen , Ke Qin , Yizheng Zhao , Cam-Tu Nguyen