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The training of topic models for a multilingual environment is a challenging task, requiring the use of sophisticated algorithms, topic-aligned corpora, and manual evaluation. These difficulties are further exacerbated when the developer…

计算与语言 · 计算机科学 2025-09-03 Felix Engl , Andreas Henrich

Context: Topic modeling finds human-readable structures in unstructured textual data. A widely used topic modeler is Latent Dirichlet allocation. When run on different datasets, LDA suffers from "order effects" i.e. different topics are…

软件工程 · 计算机科学 2018-03-16 Amritanshu Agrawal , Wei Fu , Tim Menzies

This paper studies the best practices for automatic machine learning (AutoML). While previous AutoML efforts have predominantly focused on unimodal data, the multimodal aspect remains under-explored. Our study delves into classification and…

机器学习 · 计算机科学 2024-12-24 Zhiqiang Tang , Zihan Zhong , Tong He , Gerald Friedland

Recent advancements in multi-modal large language models have propelled the development of joint probabilistic models capable of both image understanding and generation. However, we have identified that recent methods suffer from loss of…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Jian Yang , Dacheng Yin , Yizhou Zhou , Fengyun Rao , Wei Zhai , Yang Cao , Zheng-Jun Zha

In the recent past, complex deep neural networks have received huge interest in various document understanding tasks such as document image classification and document retrieval. As many document types have a distinct visual style, learning…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Souhail Bakkali , Ziheng Ming , Mickael Coustaty , Marçal Rusiñol

We propose a novel model for multi-label text classification, which is based on sequence-to-sequence learning. The model generates higher-level semantic unit representations with multi-level dilated convolution as well as a corresponding…

计算与语言 · 计算机科学 2018-11-13 Junyang Lin , Qi Su , Pengcheng Yang , Shuming Ma , Xu Sun

Auxiliary information can be exploited in machine learning models using the paradigm of evidence based conditional inference. Multi-modal techniques in Deep Neural Networks (DNNs) can be seen as perturbing the latent feature representation…

计算机视觉与模式识别 · 计算机科学 2019-12-09 Dinesh Khandelwal , Suyash Agrawal , Parag Singla , Chetan Arora

Prevalent empathy prediction techniques primarily concentrate on a singular modality, typically textual, thus neglecting multi-modal processing capabilities. They also overlook the utilization of certain privileged information, which may…

人工智能 · 计算机科学 2025-12-03 Yufei Xiao , Shangfei Wang

Probabilistic topic models such as latent Dirichlet allocation (LDA) are popularly used with Bayesian inference methods such as Gibbs sampling to learn posterior distributions over topic model parameters. We derive a novel measure of LDA…

计算与语言 · 计算机科学 2019-09-17 Linzi Xing , Michael J. Paul , Giuseppe Carenini

Unsupervised domain adaptation (UDA) methods have been broadly utilized to improve the models' adaptation ability in general computer vision. However, different from the natural images, there exist huge semantic gaps for the nuclei from…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Canran Li , Dongnan Liu , Haoran Li , Zheng Zhang , Guangming Lu , Xiaojun Chang , Weidong Cai

Designing an effective representation learning method for multimodal sentiment analysis tasks is a crucial research direction. The challenge lies in learning both shared and private information in a complete modal representation, which is…

计算与语言 · 计算机科学 2024-03-20 Songning Lai , Jiakang Li , Guinan Guo , Xifeng Hu , Yulong Li , Yuan Tan , Zichen Song , Yutong Liu , Zhaoxia Ren , Chun Wan , Danmin Miao , Zhi Liu

Convolutional Neural Networks (CNNs) have proven to be state-of-the-art models for supervised computer vision tasks, such as image classification. However, large labeled data sets are generally needed for the training and validation of such…

机器学习 · 计算机科学 2020-10-28 Patrick Hemmer , Niklas Kühl , Jakob Schöffer

Topic models have emerged as fundamental tools in unsupervised machine learning. Most modern topic modeling algorithms take a probabilistic view and derive inference algorithms based on Latent Dirichlet Allocation (LDA) or its variants. In…

机器学习 · 计算机科学 2016-05-30 Ke Jiang , Suvrit Sra , Brian Kulis

Labeling medical images depends on professional knowledge, making it difficult to acquire large amount of annotated medical images with high quality in a short time. Thus, making good use of limited labeled samples in a small dataset to…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Peng Jiang , Juan Liu , Lang Wang , Zhihui Ynag , Hongyu Dong , Jing Feng

Document-level neural machine translation (DocNMT) aims to generate translations that are both coherent and cohesive, in contrast to its sentence-level counterpart. However, due to its longer input length and limited availability of…

计算与语言 · 计算机科学 2024-01-30 Minghao Wu , Yufei Wang , George Foster , Lizhen Qu , Gholamreza Haffari

The growing need to analyze large collections of documents has led to great developments in topic modeling. Since documents are frequently associated with other related variables, such as labels or ratings, much interest has been placed on…

机器学习 · 统计学 2018-08-20 Filipe Rodrigues , Mariana Lourenço , Bernardete Ribeiro , Francisco Pereira

This thesis works to address a pivotal challenge in medical image analysis: the reliance on extensive labeled datasets, which are often limited due to the need for expert annotation and constrained by privacy and legal issues. By focusing…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Cristian Simionescu

We introduce a deep multitask architecture to integrate multityped representations of multimodal objects. This multitype exposition is less abstract than the multimodal characterization, but more machine-friendly, and thus is more precise…

机器学习 · 统计学 2016-03-07 Truyen Tran , Dinh Phung , Svetha Venkatesh

In this paper, we present the Polylingual Labeled Topic Model, a model which combines the characteristics of the existing Polylingual Topic Model and Labeled LDA. The model accounts for multiple languages with separate topic distributions…

计算与语言 · 计算机科学 2017-05-03 Lisa Posch , Arnim Bleier , Philipp Schaer , Markus Strohmaier

In this paper a doubly attentive transformer machine translation model (DATNMT) is presented in which a doubly-attentive transformer decoder normally joins spatial visual features obtained via pretrained convolutional neural networks,…

计算与语言 · 计算机科学 2018-08-01 Hasan Sait Arslan , Mark Fishel , Gholamreza Anbarjafari