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Opinion summarization from online product reviews is a challenging task, which involves identifying opinions related to various aspects of the product being reviewed. While previous works require additional human effort to identify relevant…

计算与语言 · 计算机科学 2019-11-25 Chao Zhao , Snigdha Chaturvedi

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

Recent methods for learning vector space representations of words have succeeded in capturing fine-grained semantic and syntactic regularities using vector arithmetic. However, these vector space representations (created through large-scale…

计算与语言 · 计算机科学 2016-05-17 Martin Andrews

Time series forecasting plays a crucial role in diverse fields, necessitating the development of robust models that can effectively handle complex temporal patterns. In this article, we present a novel feature selection method embedded in…

机器学习 · 计算机科学 2024-01-01 Raquel Espinosa , Fernando Jiménez , José Palma

Aspect-based sentiment analysis (ABSA) is a fine-grained sentiment analysis task that focuses on understanding opinions at the aspect level, including sentiment towards specific aspect terms, categories, and opinions. While ABSA research…

计算与语言 · 计算机科学 2025-08-14 Jakub Šmíd , Pavel Král

Speech emotion recognition (SER) is a field that has drawn a lot of attention due to its applications in diverse fields. A current trend in methods used for SER is to leverage embeddings from pre-trained models (PTMs) as input features to…

音频与语音处理 · 电气工程与系统科学 2023-05-31 Orchid Chetia Phukan , Arun Balaji Buduru , Rajesh Sharma

Aspect sentiment triplet extraction (ASTE) aims to extract aspect term, sentiment and opinion term triplets from sentences. Since the initial datasets used to evaluate models on ASTE had flaws, several studies later corrected the initial…

计算与语言 · 计算机科学 2022-12-20 Yuncong Li , Fang Wang , Sheng-Hua Zhong

The effective exploitation of richer contextual information in language models (LMs) is a long-standing research problem for automatic speech recognition (ASR). A cross-utterance LM (CULM) is proposed in this paper, which augments the input…

计算与语言 · 计算机科学 2020-09-03 G. Sun , C. Zhang , P. C. Woodland

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

While reaching for NLP systems that maximize accuracy, other important metrics of system performance are often overlooked. Prior models are easily forgotten despite their possible suitability in settings where large computing resources are…

计算与语言 · 计算机科学 2024-04-19 Mahammed Kamruzzaman , Gene Louis Kim

Autoregressive Large Language Models (LLMs) demonstrate exceptional performance in language understanding and generation. However, their application in text embedding tasks has been relatively slow, along with the analysis of their semantic…

计算与语言 · 计算机科学 2025-10-03 Zhaoxin Feng , Jianfei Ma , Emmanuele Chersoni , Xiaojing Zhao , Xiaoyi Bao

In aspect-based sentiment analysis, extracting aspect terms along with the opinions being expressed from user-generated content is one of the most important subtasks. Previous studies have shown that exploiting connections between aspect…

计算与语言 · 计算机科学 2016-09-20 Wenya Wang , Sinno Jialin Pan , Daniel Dahlmeier , Xiaokui Xiao

Aspect-based sentiment classification (ASC) aims to judge the sentiment polarity conveyed by the given aspect term in a sentence. The sentiment polarity is not only determined by the local context but also related to the words far away from…

计算与语言 · 计算机科学 2025-02-11 Hao Niu , Yun Xiong , Xiaosu Wang , Philip S. Yu

Aspect-based sentiment analysis (ABSA) aims to predict the sentiment expressed in a review with respect to a given aspect. The core of ABSA is to model the interaction between the context and given aspect to extract the aspect-related…

计算与语言 · 计算机科学 2022-04-22 Bowen Xing , Ivor W. Tsang

Since the dawn of the digitalisation era, customer feedback and online reviews are unequivocally major sources of insights for businesses. Consequently, conducting comparative analyses of such sources has become the de facto modus operandi…

We analyze the process of creating word embedding feature representations designed for a learning task when annotated data is scarce, for example, in depressive language detection from Tweets. We start with a rich word embedding pre-trained…

计算与语言 · 计算机科学 2021-06-25 Nawshad Farruque , Randy Goebel , Osmar Zaiane

Neural sequence models have achieved great success in sentence-level sentiment classification. However, some models are exceptionally complex or based on expensive features. Some other models recognize the value of existed linguistic…

计算与语言 · 计算机科学 2019-10-21 Yan Zeng , Yangyang Lan , Yazhou Hao , Chen Li , Qinhua Zheng

Audio Sentiment Analysis is a popular research area which extends the conventional text-based sentiment analysis to depend on the effectiveness of acoustic features extracted from speech. However, current progress on audio sentiment…

音频与语音处理 · 电气工程与系统科学 2019-08-01 Feiyang Chen , Ziqian Luo

Keyphrase extraction from a given document is the task of automatically extracting salient phrases that best describe the document. This paper proposes a novel unsupervised graph-based ranking method to extract high-quality phrases from a…

信息检索 · 计算机科学 2022-01-27 Venktesh V , Mukesh Mohania , Vikram Goyal

Structural bias has recently been exploited for aspect sentiment triplet extraction (ASTE) and led to improved performance. On the other hand, it is recognized that explicitly incorporating structural bias would have a negative impact on…

计算与语言 · 计算机科学 2022-09-05 Chen Zhang , Lei Ren , Fang Ma , Jingang Wang , Wei Wu , Dawei Song