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Semantic annotation, the process of identifying key-phrases in texts and linking them to concepts in a knowledge base, is an important basis for semantic information retrieval and the Semantic Web uptake. Despite the emergence of semantic…

Computation and Language · Computer Science 2018-11-15 Gagnon Michel , Zouaq Amal , Aranha Francisco , Ensan Faezeh , Jean-Louis Ludovic

Compared with English, Chinese suffers from more grammatical ambiguities, like fuzzy word boundaries and polysemous words. In this case, contextual information is not sufficient to support Chinese named entity recognition (NER), especially…

Computation and Language · Computer Science 2022-10-25 Qinghua Mao , Jiatong Li , Kui Meng

Handwritten text and scene text suffer from various shapes and distorted patterns. Thus training a robust recognition model requires a large amount of data to cover diversity as much as possible. In contrast to data collection and…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Canjie Luo , Yuanzhi Zhu , Lianwen Jin , Yongpan Wang

In the last decade, many diverse advances have occurred in the field of information extraction from data. Information extraction in its simplest form takes place in computing environments, where structured data can be extracted through a…

Machine Learning · Computer Science 2019-11-27 Nino Arsov , Milan Dukovski , Blagoja Evkoski , Stefan Cvetkovski

Answering natural language queries over relational data often requires retrieving and reasoning over multiple tables, yet most retrievers optimize only for query-table relevance and ignore table table compatibility. We introduce REAR…

Information Retrieval · Computer Science 2025-11-04 Rishita Agarwal , Himanshu Singhal , Peter Baile Chen , Manan Roy Choudhury , Dan Roth , Vivek Gupta

Conversational recommender systems (CRSs) enhance recommendation quality by engaging users in multi-turn dialogues, capturing nuanced preferences through natural language interactions. However, these systems often face the false negative…

Information Retrieval · Computer Science 2025-08-11 Haozhe Xu , Xiaohua Wang , Changze Lv , Xiaoqing Zheng

Building the Natural Language Understanding (NLU) modules of task-oriented Spoken Dialogue Systems (SDS) involves a definition of intents and entities, collection of task-relevant data, annotating the data with intents and entities, and…

Computation and Language · Computer Science 2021-05-13 Saurav Sahay , Eda Okur , Nagib Hakim , Lama Nachman

We present semi-supervised models with data augmentation (SMDA), a semi-supervised text classification system to classify interactive affective responses. SMDA utilizes recent transformer-based models to encode each sentence and employs…

Computation and Language · Computer Science 2020-04-24 Jiaao Chen , Yuwei Wu , Diyi Yang

Abstractive summarization systems based on pretrained language models often generate coherent but factually inconsistent sentences. In this paper, we present a counterfactual data augmentation approach where we augment data with perturbed…

Computation and Language · Computer Science 2022-05-26 Dheeraj Rajagopal , Siamak Shakeri , Cicero Nogueira dos Santos , Eduard Hovy , Chung-Ching Chang

Data Augmentation through generating pseudo data has been proven effective in mitigating the challenge of data scarcity in the field of Grammatical Error Correction (GEC). Various augmentation strategies have been widely explored, most of…

Computation and Language · Computer Science 2023-10-19 Jingheng Ye , Yinghui Li , Yangning Li , Hai-Tao Zheng

Recently, AI-generated image detection has gained increasing attention, as the rapid advancement of image generation technologies has raised serious concerns about their potential misuse. While existing detection methods have achieved…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Ju Yeon Kang , Jaehong Park , Semin Kim , Ji Won Yoon , Nam Soo Kim

Data synthesis and augmentation are essential for Sound Event Detection (SED) due to the scarcity of temporally labeled data. While augmentation methods like SpecAugment and Mix-up can enhance model performance, they remain constrained by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-24 Jiarui Hai , Mounya Elhilali

In this work, we explore data augmentations for knowledge distillation on semantic segmentation. To avoid over-fitting to the noise in the teacher network, a large number of training examples is essential for knowledge distillation.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Jianlong Yuan , Qian Qi , Fei Du , Zhibin Wang , Fan Wang , Yifan Liu

Data augmentation is an effective solution to data scarcity in low-resource scenarios. However, when applied to token-level tasks such as NER, data augmentation methods often suffer from token-label misalignment, which leads to…

Computation and Language · Computer Science 2022-03-21 Ran Zhou , Xin Li , Ruidan He , Lidong Bing , Erik Cambria , Luo Si , Chunyan Miao

In this paper, we propose two techniques, namely joint modeling and data augmentation, to improve system performances for audio-visual scene classification (AVSC). We employ pre-trained networks trained only on image data sets to extract…

Machine learning models depend critically on feature quality, yet useful features are often scattered across multiple relational tables. Feature augmentation enriches a base table by discovering and integrating features from related tables…

Databases · Computer Science 2026-02-03 Serafeim Papadias , Kostas Patroumpas , Dimitrios Skoutas

Retrieval-Augmented Generation (RAG) has emerged as a prominent method for incorporating domain knowledge into Large Language Models (LLMs). While RAG enhances response relevance by incorporating retrieved domain knowledge in the context,…

Computation and Language · Computer Science 2025-03-28 Kushagra Bhushan , Yatin Nandwani , Dinesh Khandelwal , Sonam Gupta , Gaurav Pandey , Dinesh Raghu , Sachindra Joshi

Distant supervision uses triple facts in knowledge graphs to label a corpus for relation extraction, leading to wrong labeling and long-tail problems. Some works use the hierarchy of relations for knowledge transfer to long-tail relations.…

Computation and Language · Computer Science 2021-09-21 Yang Li , Guodong Long , Tao Shen , Jing Jiang

Retrieval-Augmented Language Models (RALMs) face significant challenges in reducing factual errors, particularly in document relevance evaluation and knowledge integration. We introduce a framework for structured relevance assessment that…

Artificial Intelligence · Computer Science 2025-07-30 Aryan Raj , Astitva Veer Garg , Anitha D

Contemporary domain adaptive semantic segmentation aims to address data annotation challenges by assuming that target domains are completely unannotated. However, annotating a few target samples is usually very manageable and worthwhile…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu
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