Unsupervised Learning Methods for Topic Extraction and Modeling in Large-scale Text Corpora using LSA and LDA

H Henderi, BH Hayadi, S Sofiana… - Journal of Applied …, 2023 - bright-journal.org
This research compares unsupervised learning methods in topic extraction and modeling in
large-scale text corpora. The methods used are Singular Value Decomposition (SVD) and …

Street‐level traffic flow and context sensing analysis through semantic integration of multisource geospatial data

Y Zhang, M Raubal - Transactions in GIS, 2022 - Wiley Online Library
Sensing urban spaces from multisource geospatial data is vital to understanding the
transportation system in the urban context. However, the complexity of urban context and its …

A Cross-Domain Multimodal Supervised Latent Topic Model for Item Tagging and Cold-Start Recommendation

R Tang, C Yang, Y Wang - IEEE MultiMedia, 2023 - ieeexplore.ieee.org
Cross-domain data analysis is playing an increasingly important role in media convergence
and can be adopted for many applications. Most existing methods consider the domain …

Topic based quality indexes assessment through sentiment

M Ortu, L Frigau, G Contu - Computational Statistics, 2024 - Springer
This paper proposes a new methodology called TOpic modeling Based Index Assessment
through Sentiment (TOBIAS). This method aims at modeling the effects of the topics, moods …

Multi-Modal Topic Model Based on Word Rank and Relevance Semantic for Social Events Classification

X Feng, Z Tao, L Shujie - Journal of Computer-Aided Design & Computer …, 2022 - jcad.cn
Social event classification of multimedia is a hot issue in the field of multimedia research.
The existing social event classification methods based on supervised topic model fail to …

基于单词等级和关联性语义多模态主题模型的社会事件分类

薛峰, 张涛, 李书杰 - 计算机辅助设计与图形学学报, 2022 - jcad.cn
多媒体社会事件分类问题是多媒体研究领域中的热点问题. 现有基于有监督主题模型的社会事件
分类方法, 未充分利用语料库(文本, 视觉等模态) 的内部语义信息, 模型分类性能有待进一步提升 …

Classification of Unstructured Power Grid Data Based on Self-organizing Map Neural Network

X Zhang, Q Meng, H Huang - 2023 3rd International …, 2023 - ieeexplore.ieee.org
In order to provide an effective means for power enterprises to manage non-structural data,
a classification and grading method for non-structural data of electrified wire netting based …