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In this paper, we propose a span labeling approach to model n-gram information for Vietnamese word segmentation, namely SPAN SEG. We compare the span labeling approach with the conditional random field by using encoders with the same…

Computation and Language · Computer Science 2021-10-04 Duc-Vu Nguyen , Linh-Bao Vo , Dang Van Thin , Ngan Luu-Thuy Nguyen

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by grounding responses in external knowledge during inference. However, conventiona RAG systems under-perform on structured tabular data, largely due to coarse…

Computation and Language · Computer Science 2026-05-05 Zebin Guo , Weidong Geng , Ruichen Mao

In this paper, we present a gated convolutional recurrent neural network based approach to solve task 4, large-scale weakly labelled semi-supervised sound event detection in domestic environments, of the DCASE 2018 challenge. Gated linear…

Sound · Computer Science 2018-10-17 Robert Harb , Franz Pernkopf

Fine-Grained Visual Classification (FGVC) is a longstanding and fundamental problem in computer vision and pattern recognition, and underpins a diverse set of real-world applications. This paper describes our contribution at SnakeCLEF2022…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Yong Huang , Aderon Huang , Wei Zhu , Yanming Fang , Jinghua Feng

Large language models achieve high task performance yet often hallucinate or rely on outdated knowledge. Retrieval-augmented generation (RAG) addresses these gaps by coupling generation with external search. We analyse how hyperparameters…

Machine Learning · Computer Science 2025-05-14 Adel Ammar , Anis Koubaa , Omer Nacar , Wadii Boulila

Retrieval-augmented generation (RAG) has emerged as a leading approach to reducing hallucinations in large language models (LLMs). Current RAG evaluation benchmarks primarily focus on what we call local RAG: retrieving relevant chunks from…

Computation and Language · Computer Science 2025-11-05 Qi Luo , Xiaonan Li , Tingshuo Fan , Xinchi Chen , Xipeng Qiu

Just like its great success in solving many computer vision problems, the convolutional neural networks (CNN) provided new end-to-end approach to handwritten Chinese character recognition (HCCR) with very promising results in recent years.…

Computer Vision and Pattern Recognition · Computer Science 2015-05-20 Zhuoyao Zhong , Lianwen Jin , Zecheng Xie

Assessing artistic creativity is foundational to creativity research and arts education, yet manual scoring (e.g., Torrance Tests of Creative Thinking) is labor-intensive at scale. Prior machine-learning approaches show promise for visual…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Zhehan Zhang , Meihua Qian , Li Luo , Siyu Huang , Chaoyi Zhou , Ripon Saha , Xinxin Song

This paper presents the architecture and performance of a novel Multilingual Automatic Speech Recognition (ASR) system developed by the Transsion Speech Team for Track 1 of the MLC-SLM 2025 Challenge. The proposed system comprises three key…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-22 Xiaoxiao Li , An Zhu , Youhai Jiang , Fengjie Zhu

Hybrid Retrieval systems, combining Sparse and Dense Retrieval methods, struggle with Traditional Chinese non-narrative documents due to their complex formatting, rich vocabulary, and the insufficient understanding of Chinese synonyms by…

Information Retrieval · Computer Science 2025-05-02 Hsin-Ling Hsu , Ping-Sheng Lin , Jing-Di Lin , Jengnan Tzeng

The automatic identification of offensive language such as hate speech is important to keep discussions civil in online communities. Identifying hate speech in multimodal content is a particularly challenging task because offensiveness can…

Computation and Language · Computer Science 2024-02-20 Amrita Ganguly , Al Nahian Bin Emran , Sadiya Sayara Chowdhury Puspo , Md Nishat Raihan , Dhiman Goswami , Marcos Zampieri

Retrieval-augmented generation (RAG) combines document retrieval with large language models to produce responses grounded in external evidence. While several R packages support core components of RAG workflows, integrated evaluation of RAG…

Computation · Statistics 2026-04-28 Muhammad Aimal Rehman , Zhili Lu , Chi-Kuang Yeh

Chinese word segmentation and part-of-speech tagging are necessary tasks in terms of computational linguistics and application of natural language processing. Many re-searchers still debate the demand for Chinese word segmentation and…

Computation and Language · Computer Science 2021-12-20 Duc-Vu Nguyen , Linh-Bao Vo , Ngoc-Linh Tran , Kiet Van Nguyen , Ngan Luu-Thuy Nguyen

Domain-Specific Chinese Relation Extraction (DSCRE) aims to extract relations between entities from domain-specific Chinese text. Despite the rapid development of PLMs in recent years, especially LLMs, DSCRE still faces three core…

Computation and Language · Computer Science 2024-04-30 Zhengpeng Shi , Haoran Luo

In this paper we exploit Semi-Supervised Learning (SSL) to increase the amount of training data to improve the performance of Fine-Grained Visual Categorization (FGVC). This problem has not been investigated in the past in spite of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Daniele Mugnai , Federico Pernici , Francesco Turchini , Alberto Del Bimbo

In this paper, we present our participation in SemEval-2020 Task-12 Subtask-A (English Language) which focuses on offensive language identification from noisy labels. To this end, we developed a hybrid system with the BERT classifier…

Computation and Language · Computer Science 2020-05-04 Manikandan Ravikiran , Amin Ekant Muljibhai , Toshinori Miyoshi , Hiroaki Ozaki , Yuta Koreeda , Sakata Masayuki

Recently, neural networks have shown promising results on Document-level Aspect Sentiment Classification (DASC). However, these approaches often offer little transparency w.r.t. their inner working mechanisms and lack interpretability. In…

Computation and Language · Computer Science 2019-10-22 Jingjing Wang , Changlong Sun , Shoushan Li , Jiancheng Wang , Luo Si , Min Zhang , Xiaozhong Liu , Guodong Zhou

Retrieval-Augmented Generation (RAG) utilizes external knowledge to augment Large Language Models' (LLMs) reliability. For flexibility, agentic RAG employs autonomous, multi-round retrieval and reasoning to resolve queries. Although recent…

Information Retrieval · Computer Science 2025-11-10 Chao Zhang , Yuhao Wang , Derong Xu , Haoxin Zhang , Yuanjie Lyu , Yuhao Chen , Shuochen Liu , Tong Xu , Xiangyu Zhao , Yan Gao , Yao Hu , Enhong Chen

Retrieval Augmented Generation (RAG) provides the necessary informational grounding to LLMs in the form of chunks retrieved from a vector database or through web search. RAG could also use knowledge graph triples as a means of providing…

Information Retrieval · Computer Science 2026-03-31 Shalin Shah , Srikanth Ryali , Ramasubbu Venkatesh

End-to-end automatic speech recognition (ASR) systems are increasingly popular due to their relative architectural simplicity and competitive performance. However, even though the average accuracy of these systems may be high, the…

Computation and Language · Computer Science 2021-09-14 Chao-Han Huck Yang , Linda Liu , Ankur Gandhe , Yile Gu , Anirudh Raju , Denis Filimonov , Ivan Bulyko