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Emotion recognition is the task of classifying perceived emotions in people. Previous works have utilized various nonverbal cues to extract features from images and correlate them to emotions. Of these cues, situational context is…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Willams de Lima Costa , Estefania Talavera Martinez , Lucas Silva Figueiredo , Veronica Teichrieb

This study addresses the issues of semantic entanglement, unclear label structure, and insufficient feature representation in few-shot text classification, and proposes an optimization framework based on structured prompts to enhance…

Computation and Language · Computer Science 2026-03-02 Jiasen Zheng , Zijun Zhou , Huajun Zhang , Junjiang Lin , Jingyun Jia , Qi Wang

Topic modelling is a text mining technique for identifying salient themes from a number of documents. The output is commonly a set of topics consisting of isolated tokens that often co-occur in such documents. Manual effort is often…

Computation and Language · Computer Science 2024-04-26 Lowri Williams , Eirini Anthi , Laura Arman , Pete Burnap

The place recognition problem comprises two distinct subproblems; recognizing a specific location in the world ("specific" or "ordinary" place recognition) and recognizing the type of place (place categorization). Both are important…

Robotics · Computer Science 2018-04-17 Sourav Garg , Adam Jacobson , Swagat Kumar , Michael Milford

Contextual Partitioning introduces an innovative approach to enhancing the architectural design of large-scale computational models through the dynamic segmentation of parameters into context-aware regions. This methodology emphasizes the…

Computation and Language · Computer Science 2025-08-11 Offa Kingsleigh , Alfred Abercrombie , David Woolstencroft , Beorhtric Meadowcroft , Marcus Irvin

Mapping and localization are two essential tasks for mobile robots in real-world applications. However, largescale and dynamic scenes challenge the accuracy and robustness of most current mature solutions. This situation becomes even worse…

Robotics · Computer Science 2022-01-19 Fan Wang , Chaofan Zhang , Fulin Tang , Hongkui Jiang , Yihong Wu , Yong Liu

Data mining and knowledge discovery are essential aspects of extracting valuable insights from vast datasets. Neural topic models (NTMs) have emerged as a valuable unsupervised tool in this field. However, the predominant objective in NTMs,…

Artificial Intelligence · Computer Science 2024-12-24 Xin Gao , Yang Lin , Ruiqing Li , Yasha Wang , Xu Chu , Xinyu Ma , Hailong Yu

In topic modeling, many algorithms that guarantee identifiability of the topics have been developed under the premise that there exist anchor words -- i.e., words that only appear (with positive probability) in one topic. Follow-up work has…

Machine Learning · Statistics 2016-11-16 Kejun Huang , Xiao Fu , Nicholas D. Sidiropoulos

We propose a neural network based approach for learning topics from text and image datasets. The model makes no assumptions about the conditional distribution of the observed features given the latent topics. This allows us to perform topic…

Machine Learning · Computer Science 2017-03-01 Gaurav Pandey , Ambedkar Dukkipati

Image captioning is a longstanding problem in the field of computer vision and natural language processing. To date, researchers have produced impressive state-of-the-art performance in the age of deep learning. Most of these…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Zihang Meng , David Yang , Xuefei Cao , Ashish Shah , Ser-Nam Lim

Neural machine translation has achieved remarkable empirical performance over standard benchmark datasets, yet recent evidence suggests that the models can still fail easily dealing with substandard inputs such as misspelled words, To…

Computation and Language · Computer Science 2020-10-21 Haohan Wang , Peiyan Zhang , Eric P. Xing

Traditional topic models are effective at uncovering latent themes in large text collections. However, due to their reliance on bag-of-words representations, they struggle to capture semantically abstract features. While some neural…

Computation and Language · Computer Science 2025-08-01 Carolina Zheng , Nicolas Beltran-Velez , Sweta Karlekar , Claudia Shi , Achille Nazaret , Asif Mallik , Amir Feder , David M. Blei

In this paper, we introduce token communications (TokCom), a large model-driven framework to leverage cross-modal context information in generative semantic communications (GenSC). TokCom is a new paradigm, motivated by the recent success…

Multimedia · Computer Science 2025-07-18 Li Qiao , Mahdi Boloursaz Mashhadi , Zhen Gao , Rahim Tafazolli , Mehdi Bennis , Dusit Niyato

In this paper, we introduce a contextual grounding approach that captures the context in corresponding text entities and image regions to improve the grounding accuracy. Specifically, the proposed architecture accepts pre-trained text token…

Computer Vision and Pattern Recognition · Computer Science 2019-11-07 Farley Lai , Ning Xie , Derek Doran , Asim Kadav

Most of current image captioning models heavily rely on paired image-caption datasets. However, getting large scale image-caption paired data is labor-intensive and time-consuming. In this paper, we present a scene graph-based approach for…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Jiuxiang Gu , Shafiq Joty , Jianfei Cai , Handong Zhao , Xu Yang , Gang Wang

Image captioning bridges the gap between vision and language by automatically generating natural language descriptions for images. Traditional image captioning methods often overlook the preferences and characteristics of users.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Xuan Wang , Guanhong Wang , Wenhao Chai , Jiayu Zhou , Gaoang Wang

Organizations face growing challenges in deriving meaningful insights from vast amounts of specialized text data. Conventional topic modeling techniques are typically static and unsupervised, making them ill-suited for fast-evolving fields…

Information Retrieval · Computer Science 2025-08-29 Ali Nazari , Michael Weiss

We address the challenging problem of image captioning by revisiting the representation of image scene graph. At the core of our method lies the decomposition of a scene graph into a set of sub-graphs, with each sub-graph capturing a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-24 Yiwu Zhong , Liwei Wang , Jianshu Chen , Dong Yu , Yin Li

With the novel and fast advances in the area of deep neural networks, several challenging image-based tasks have been recently approached by researchers in pattern recognition and computer vision. In this paper, we address one of these…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Jônatas Wehrmann , Anderson Mattjie , Rodrigo C. Barros

Statistical topic models provide a general data-driven framework for automated discovery of high-level knowledge from large collections of text documents. While topic models can potentially discover a broad range of themes in a data set,…

Artificial Intelligence · Computer Science 2008-08-08 Chaitanya Chemudugunta , Padhraic Smyth , Mark Steyvers