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Ensemble methods for supervised machine learning have become popular due to their ability to accurately predict class labels with groups of simple, lightweight "base learners." While ensembles offer computationally efficient models that…

机器学习 · 统计学 2011-09-01 Orianna DeMasi , Juan Meza , David H. Bailey

Most large language models are fine-tuned using either expensive human-annotated data or GPT-4 generated data which cannot guarantee performance in certain domains. We argue that although the web-crawled data often has formatting errors…

计算与语言 · 计算机科学 2024-08-16 Jing Zhou , Chenglin Jiang , Wei Shen , Xiao Zhou , Xiaonan He

We present a novel supervised word alignment method based on cross-language span prediction. We first formalize a word alignment problem as a collection of independent predictions from a token in the source sentence to a span in the target…

计算与语言 · 计算机科学 2020-05-01 Masaaki Nagata , Chousa Katsuki , Masaaki Nishino

This paper describes one objective function for learning semantically coherent feature embeddings in multi-output classification problems, i.e., when the response variables have dimension higher than one. In particular, we consider the…

计算机视觉与模式识别 · 计算机科学 2020-03-23 Hugo Proença , Ehsan Yaghoubi , Pendar Alirezazadeh

As retrieval-augmented generation prevails in large language models, embedding models are becoming increasingly crucial. Despite the growing number of general embedding models, prior work often overlooks the critical role of training data…

Large scale achievement tests require the existence of item banks with items for use in future tests. Before an item is included into the bank, its characteristics need to be estimated. The process of estimating the item characteristics is…

统计方法学 · 统计学 2024-12-31 Jonas Bjermo , Ellinor Fackle Fornius , Frank Miller

In this paper, we propose an effective way for biasing the attention mechanism of a sequence-to-sequence neural machine translation (NMT) model towards the well-studied statistical word alignment models. We show that our novel guided…

计算与语言 · 计算机科学 2016-07-07 Wenhu Chen , Evgeny Matusov , Shahram Khadivi , Jan-Thorsten Peter

Neural approaches to learning term embeddings have led to improved computation of similarity and ranking in information retrieval (IR). So far neural representation learning has not been extended to meta-textual information that is readily…

信息检索 · 计算机科学 2021-02-03 Toshitaka Kuwa , Shigehiko Schamoni , Stefan Riezler

Many automated processes such as auto-piloting rely on a good semantic segmentation as a critical component. To speed up performance, it is common to downsample the input frame. However, this comes at the cost of missed small objects and…

计算机视觉与模式识别 · 计算机科学 2019-07-17 Dmitrii Marin , Zijian He , Peter Vajda , Priyam Chatterjee , Sam Tsai , Fei Yang , Yuri Boykov

Label smoothing is a widely used technique in various domains, such as text classification, image classification and speech recognition, known for effectively combating model overfitting. However, there is little fine-grained analysis on…

计算与语言 · 计算机科学 2024-02-26 Yijie Gao , Shijing Si , Hua Luo , Haixia Sun , Yugui Zhang

This paper presents a new pre-trained language model, DeBERTaV3, which improves the original DeBERTa model by replacing mask language modeling (MLM) with replaced token detection (RTD), a more sample-efficient pre-training task. Our…

计算与语言 · 计算机科学 2023-03-27 Pengcheng He , Jianfeng Gao , Weizhu Chen

We propose Pixel-BERT to align image pixels with text by deep multi-modal transformers that jointly learn visual and language embedding in a unified end-to-end framework. We aim to build a more accurate and thorough connection between image…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Zhicheng Huang , Zhaoyang Zeng , Bei Liu , Dongmei Fu , Jianlong Fu

Audio-to-score alignment (A2SA) is a multimodal task consisting in the alignment of audio signals to music scores. Recent literature confirms the benefits of Automatic Music Transcription (AMT) for A2SA at the frame-level. In this work, we…

声音 · 计算机科学 2022-01-03 Federico Simonetta , Stavros Ntalampiras , Federico Avanzini

Measuring the quality of a generated sequence against a set of references is a central problem in many learning frameworks, be it to compute a score, to assign a reward, or to perform discrimination. Despite great advances in model…

机器学习 · 计算机科学 2020-03-06 Florian Schmidt , Thomas Hofmann

Training Learning-to-Rank models for e-commerce product search ranking can be challenging due to the lack of a gold standard of ranking relevance. In this paper, we decompose ranking relevance into content-based and engagement-based…

信息检索 · 计算机科学 2024-09-27 Qi Liu , Atul Singh , Jingbo Liu , Cun Mu , Zheng Yan

Domain-specific languages that use a lot of specific terminology often fall into the category of low-resource languages. Collecting test datasets in a narrow domain is time-consuming and requires skilled human resources with domain…

计算与语言 · 计算机科学 2024-12-16 Anastasia Zhukova , Christian E. Matt , Bela Gipp

This study investigates the reliability and validity of five advanced Large Language Models (LLMs), Claude 3.5, DeepSeek v2, Gemini 2.5, GPT-4, and Mistral 24B, for automated essay scoring in a real world higher education context. A total…

计算机与社会 · 计算机科学 2025-08-05 Andrea Gaggioli , Giuseppe Casaburi , Leonardo Ercolani , Francesco Collova' , Pietro Torre , Fabrizio Davide

Word embeddings are effective intermediate representations for capturing semantic regularities between words, when learning the representations of text sequences. We propose to view text classification as a label-word joint embedding…

计算与语言 · 计算机科学 2018-05-14 Guoyin Wang , Chunyuan Li , Wenlin Wang , Yizhe Zhang , Dinghan Shen , Xinyuan Zhang , Ricardo Henao , Lawrence Carin

Current large language models can perform reasonably well on complex tasks that require step-by-step reasoning with few-shot learning. Are these models applying reasoning skills they have learnt during pre-training and reason outside of…

Recent advancements in large language models (LLMs) hold significant promise in improving physics education research that uses machine learning. In this study, we compare the application of various models to perform large-scale analysis of…

物理教育 · 物理学 2025-02-25 Rebeckah K. Fussell , Megan Flynn , Anil Damle , Michael F. J. Fox , N. G. Holmes