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We present a novel one-shot talking head synthesis method that achieves disentangled and fine-grained control over lip motion, eye gaze&blink, head pose, and emotional expression. We represent different motions via disentangled latent…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Duomin Wang , Yu Deng , Zixin Yin , Heung-Yeung Shum , Baoyuan Wang

Aspect-based Sentiment Analysis (ABSA) seeks to predict the sentiment polarity of a sentence toward a specific aspect. Recently, it has been shown that dependency trees can be integrated into deep learning models to produce the…

计算与语言 · 计算机科学 2020-10-27 Amir Pouran Ben Veyseh , Nasim Nour , Franck Dernoncourt , Quan Hung Tran , Dejing Dou , Thien Huu Nguyen

Generic sentence embeddings provide a coarse-grained approximation of semantic textual similarity but ignore specific aspects that make texts similar. Conversely, aspect-based sentence embeddings provide similarities between texts based on…

计算与语言 · 计算机科学 2023-09-26 Tim Schopf , Emanuel Gerber , Malte Ostendorff , Florian Matthes

We introduce a hyperbolic neural network approach to pixel-level active learning for semantic segmentation. Analysis of the data statistics leads to a novel interpretation of the hyperbolic radius as an indicator of data scarcity. In HALO…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Luca Franco , Paolo Mandica , Konstantinos Kallidromitis , Devin Guillory , Yu-Teng Li , Trevor Darrell , Fabio Galasso

Label inventories for fine-grained entity typing have grown in size and complexity. Nonetheless, they exhibit a hierarchical structure. Hyperbolic spaces offer a mathematically appealing approach for learning hierarchical representations of…

计算与语言 · 计算机科学 2020-10-06 Federico López , Michael Strube

Exemplar-based models have achieved great success on localizing the parts of semi-rigid objects. However, their efficacy on highly articulated objects such as humans is yet to be explored. Inspired by hierarchical object representation and…

计算机视觉与模式识别 · 计算机科学 2015-12-15 Jiongxin Liu , Yinxiao Li , Peter Allen , Peter Belhumeur

One key task of fine-grained sentiment analysis of product reviews is to extract product aspects or features that users have expressed opinions on. This paper focuses on supervised aspect extraction using deep learning. Unlike other highly…

计算与语言 · 计算机科学 2018-05-15 Hu Xu , Bing Liu , Lei Shu , Philip S. Yu

Image captioning, an open research issue, has been evolved with the progress of deep neural networks. Convolutional neural networks (CNNs) and recurrent neural networks (RNNs) are employed to compute image features and generate natural…

计算机视觉与模式识别 · 计算机科学 2018-07-26 Boeun Kim , Young Han Lee , Hyedong Jung , Choongsang Cho

Stock trend forecasting has become a popular research direction that attracts widespread attention in the financial field. Though deep learning methods have achieved promising results, there are still many limitations, for example, how to…

机器学习 · 计算机科学 2020-12-14 Hongshun Tang , Lijun Wu , Weiqing Liu , Jiang Bian

Aspect-based opinion mining is the task of identifying sentiment at the aspect level in opinionated text, which consists of two subtasks: aspect category extraction and sentiment polarity classification. While aspect category extraction…

计算与语言 · 计算机科学 2020-03-17 Nguyen Thi Thanh Thuy , Ngo Xuan Bach , Tu Minh Phuong

To enhance the performance of affective models and reduce the cost of acquiring physiological signals for real-world applications, we adopt multimodal deep learning approach to construct affective models from multiple physiological signals.…

人机交互 · 计算机科学 2016-02-29 Wei Liu , Wei-Long Zheng , Bao-Liang Lu

Disentanglement is a highly desirable property of representation due to its similarity with human's understanding and reasoning. This improves interpretability, enables the performance of down-stream tasks, and enables controllable…

机器学习 · 计算机科学 2020-10-24 Jiantao Wu , Lin Wang

Fine-grained aspect extraction is an essential sub-task in aspect based opinion analysis. It aims to identify the aspect terms (a.k.a. opinion targets) of a product or service in each sentence. However, expensive annotation process is…

计算与语言 · 计算机科学 2024-10-30 Tao Liang , Wenya Wang , Fengmao Lv

In recent times, word embeddings are taking a significant role in sentiment analysis. As the generation of word embeddings needs huge corpora, many applications use pretrained embeddings. In spite of the success, word embeddings suffers…

计算与语言 · 计算机科学 2020-06-03 Satanik Mitra , Mamata Jenamani

Effectiveness of speech emotion recognition in real-world scenarios is often hindered by noisy environments and variability across datasets. This paper introduces a two-step approach to enhance the robustness and generalization of speech…

声音 · 计算机科学 2025-10-13 Upasana Tiwari , Rupayan Chakraborty , Sunil Kumar Kopparapu

This study presents Latent Diffusion Autoencoder (LDAE), a novel encoder-decoder diffusion-based framework for efficient and meaningful unsupervised learning in medical imaging, focusing on Alzheimer disease (AD) using brain MR from the…

计算机视觉与模式识别 · 计算机科学 2026-01-12 Gabriele Lozupone , Alessandro Bria , Francesco Fontanella , Frederick J. A. Meijer , Claudio De Stefano , Henkjan Huisman

Optimizing deep learning models requires large amounts of annotated images, a process that is both time-intensive and costly. Especially for semantic segmentation models in which every pixel must be annotated. A potential strategy to…

Fine-grained sentiment analysis faces ongoing challenges in Aspect Sentiment Triple Extraction (ASTE), particularly in accurately capturing the relationships between aspects, opinions, and sentiment polarities. While researchers have made…

计算与语言 · 计算机科学 2025-11-14 Vishal Thenuwara , Nisansa de Silva

How do computers and intelligent agents view the world around them? Feature extraction and representation constitutes one the basic building blocks towards answering this question. Traditionally, this has been done with carefully engineered…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Jaime Spencer , Richard Bowden , Simon Hadfield

Aspect Sentiment Triplet Extraction (ASTE) is the task of extracting triplets of aspect terms, their associated sentiments, and the opinion terms that provide evidence for the expressed sentiments. Previous approaches to ASTE usually…

计算与语言 · 计算机科学 2021-08-16 Samson Yu Bai Jian , Tapas Nayak , Navonil Majumder , Soujanya Poria