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Related papers: CRF-based Named Entity Recognition @ICON 2013

200 papers

Named entity recognition (NER) is a vital task in spoken language understanding, which aims to identify mentions of named entities in text e.g., from transcribed speech. Existing neural models for NER rely mostly on dedicated word-level…

Computation and Language · Computer Science 2019-09-24 Abdalghani Abujabal , Judith Gaspers

We compare the use of LSTM-based and CNN-based character-level word embeddings in BiLSTM-CRF models to approach chemical and disease named entity recognition (NER) tasks. Empirical results over the BioCreative V CDR corpus show that the use…

Computation and Language · Computer Science 2018-08-28 Zenan Zhai , Dat Quoc Nguyen , Karin Verspoor

This paper presents a method of designing specific high-order dependency factor on the linear chain conditional random fields (CRFs) for named entity recognition (NER). Named entities tend to be separated from each other by multiple outside…

Computation and Language · Computer Science 2018-05-29 Wangjin Lee , Jinwook Choi

In this paper we investigate the role of the dependency tree in a named entity recognizer upon using a set of GCN. We perform a comparison among different NER architectures and show that the grammar of a sentence positively influences the…

Computation and Language · Computer Science 2018-02-15 A. Cetoli , S. Bragaglia , A. D. O'Harney , M. Sloan

Named Entity Recognition(NER) is a task of recognizing entities at a token level in a sentence. This paper focuses on solving NER tasks in a multilingual setting for complex named entities. Our team, LLM-RM participated in the recently…

Computation and Language · Computer Science 2023-05-08 Rahul Mehta , Vasudeva Varma

Generative Artificial Intelligence (GenAI), particularly Large Language Models (LLMs), has significantly advanced Natural Language Processing (NLP) tasks, such as Named Entity Recognition (NER), which involves identifying entities like…

Computation and Language · Computer Science 2025-03-14 Sameer Neupane , Jeevan Chapagain , Nobal B. Niraula , Diwa Koirala

Named Entity Recognition (NER) is a key step in the creation of structured data from digitised historical documents. Traditional NER approaches deal with flat named entities, whereas entities often are nested. For example, a postal address…

Information Retrieval · Computer Science 2023-02-22 Solenn Tual , Nathalie Abadie , J Chazalon , Bertrand Duménieu , Edwin Carlinet

Named Entity Recognition (NER) is a challenging task that extracts named entities from unstructured text data, including news, articles, social comments, etc. The NER system has been studied for decades. Recently, the development of Deep…

Computation and Language · Computer Science 2020-09-03 Jiuniu Wang , Wenjia Xu , Xingyu Fu , Guangluan Xu , Yirong Wu

The emergence of multimodal content, particularly text and images on social media, has positioned Multimodal Named Entity Recognition (MNER) as an increasingly important area of research within Natural Language Processing. Despite progress…

Computation and Language · Computer Science 2025-05-09 Hussain Ahmad , Qingyang Zeng , Jing Wan

We propose a new method for the calculation of error rates in Automatic Speech Recognition (ASR). This new metric is for languages that contain half characters and where the same character can be written in different forms. We implement our…

Computation and Language · Computer Science 2022-06-16 Priyanshi Shah , Harveen Singh Chadha , Anirudh Gupta , Ankur Dhuriya , Neeraj Chhimwal , Rishabh Gaur , Vivek Raghavan

Nested named entity recognition (NER) has been receiving increasing attention. Recently, (Fu et al, 2021) adapt a span-based constituency parser to tackle nested NER. They treat nested entities as partially-observed constituency trees and…

Computation and Language · Computer Science 2022-03-10 Chao Lou , Songlin Yang , Kewei Tu

Named entity recognition (NER) is frequently addressed as a sequence classification task where each input consists of one sentence of text. It is nevertheless clear that useful information for the task can often be found outside of the…

Computation and Language · Computer Science 2020-12-18 Jouni Luoma , Sampo Pyysalo

Despite advancements of end-to-end (E2E) models in speech recognition, named entity recognition (NER) is still challenging but critical for semantic understanding. Previous studies mainly focus on various rule-based or attention-based…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-11 Peng Wang , Yifan Yang , Zheng Liang , Tian Tan , Shiliang Zhang , Xie Chen

This paper discusses the experiments carried out by us at Jadavpur University as part of the participation in ICON 2015 task: POS Tagging for Code-mixed Indian Social Media Text. The tool that we have developed for the task is based on…

Computation and Language · Computer Science 2016-01-07 Kamal Sarkar

This paper presents a printed Bengali and English text OCR system developed by us using a single hidden BLSTM-CTC architecture having 128 units. Here, we did not use any peephole connection and dropout in the BLSTM, which helped us in…

Computer Vision and Pattern Recognition · Computer Science 2019-08-26 Debabrata Paul , Bidyut Baran Chaudhuri

Taking word sequences as the input, typical named entity recognition (NER) models neglect errors from pre-processing (e.g., tokenization). However, these errors can influence the model performance greatly, especially for noisy texts like…

Computation and Language · Computer Science 2019-08-16 Liyuan Liu , Zihan Wang , Jingbo Shang , Dandong Yin , Heng Ji , Xiang Ren , Shaowen Wang , Jiawei Han

One major challenge in natural language processing is named entity recognition (NER), which identifies and categorises named entities in textual input. In order to improve NER, this study investigates a Hindi NER technique that makes use of…

Computation and Language · Computer Science 2025-07-23 Sumit Singh , Rohit Mishra , Uma Shanker Tiwary

Named entity recognition (NER) is used to identify relevant entities in text. A bidirectional LSTM (long short term memory) encoder with a neural conditional random fields (CRF) decoder (biLSTM-CRF) is the state of the art methodology. In…

Computation and Language · Computer Science 2018-08-15 Antonio Jimeno Yepes

Recent studies have explored various approaches for treating candidate named entity spans as both source and target sequences in named entity recognition (NER) by leveraging large language models (LLMs). Although previous approaches have…

Computation and Language · Computer Science 2026-03-27 Sungwoo Han , Hyeyeon Kim , Jingun Kwon , Hidetaka Kamigaito , Manabu Okumura

Named Entity Recognition (NER) aims to extract and classify entity mentions in the text into pre-defined types (e.g., organization or person name). Recently, many works have been proposed to shape the NER as a machine reading comprehension…

Computation and Language · Computer Science 2023-09-21 Yibo Wang , Wenting Zhao , Yao Wan , Zhongfen Deng , Philip S. Yu