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Ayadata
ayadata.ai › home › blog › natural language processing › what is named entity recognition in nlp?
What Is Named Entity Recognition in NLP? - Aya Data
June 4, 2025 - NER or Named Entity Recognition, in NLP using NLTK (Natural Language Toolkit), is the process of identifying and classifying named entities present in text into predefined categories like person, organization or location.

extraction of named entity mentions in unstructured text into pre-defined categories

Named-entity recognition (NER) (also known as (named) entity identification, entity chunking, and entity extraction) is a subtask of information extraction that seeks to locate and classify named entities mentioned in unstructured text … Wikipedia
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Wikipedia
en.wikipedia.org › wiki › Named-entity_recognition
Named-entity recognition - Wikipedia
September 22, 2025 - Named-entity recognition (NER) (also known as (named) entity identification, entity chunking, and entity extraction) is a subtask of information extraction that seeks to locate and classify named entities mentioned in unstructured text into pre-defined categories such as person names (PER), ...
Discussions

What is your practical NER (Named Entity Recognition) approach? [P]
Check this out: https://hitz-zentroa.github.io/GoLLIE/ ICLR 2024 paper, current SOTA on IE including NER, you write your expected classes and describe them as python dataclasses specified by guidelines and get all the entities, sub-attributes included. Works amazingly! More on reddit.com
🌐 r/MachineLearning
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April 4, 2025
When to use NER and POS tagging ?
In industry we're mostly pragmatic engineers who aren't aiming for SOTA but "whatever works and is cheapest". NER - perhaps in combination with some form of co-reference resolution can be useful in and of itself for some use cases: for example clients might want to group/filter documents by which people and organisations are mentioned most within them. Likewise POS tagging for identifying verb chunks and noun chunks for the purpose of metadata enrichment or to improve document retrieval is quite common. Both NER and POS are useful upstream tasks that help with co-reference resolution and entity linking. Regarding transformers and older methods "no longer" being useful: whilst some companies in industry (typically the well funded incumbents like FAANG and unicorns) are obsessed with transformers, the rest of the industry is decidedly /NOT/ blinded by the transformers trend. At my company the philosophy is to start with simple models and move towards more complex modelling approaches only if you have to. If I can get ~0.93 micro F1 on a text classification problem using bag-of-words features and a logistic regression model that will happily chug through 100k inferences/min on a $25/month virtual server, it is unlikely my customer will want to pay $500/month for the same throughput and 0.96 micro F1 using a fine-tuned huggingface BERTForClassification model. Whether you're planning on getting into industry or whether you're planning on staying in academia I would strongly recommend reading around and familiarising yourself with what is now considered "old school". In industry you might find you're using "old school" methods a lot more than you are new shiny models and in academia you might find that deeply understanding old models and new models helps you to unlock new ways to think about problems and model them like this paper by someone in my PhD cohort who found that combining "old school" LDA topic modelling with BERT contextual embeddings improved their model performance at semantic similarity detection. More on reddit.com
🌐 r/LanguageTechnology
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February 14, 2021
[D] Named Entity Recognition (NER) Libraries
If spaCy’s NER isn’t picking up what you need, you’ll probably need to look into creating your own annotations and fine tuning a model or training a custom model. It isn’t too hard using BIO/BILOU tags. Things like “raw materials” and particularly niche models and brands are unlikely to be picked up by off the shelf solutions. More on reddit.com
🌐 r/MachineLearning
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January 2, 2023
SOTA for Named Entity Recognition and Entity resolution
You can try our zero-shot and few-shot NER library which can use GPT to perform predictions. https://github.com/plncmm/llmner More on reddit.com
🌐 r/LanguageTechnology
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September 5, 2023
People also ask

What is Named Entity Recognition (NER)?
Named entity recognition (NER) is a subfield within natural language processing (NLP) that focuses on identifying and classifying specific data points from textual content. NER works with salient details of the text, known as named entities — single words, phrases, or sequences of words — by identifying and categorizing them into predefined groups.
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altexsoft.com
altexsoft.com › blog › named-entity-recognition
What Is Named Entity Recognition (NER) and How It Works?
What are the approaches to NER?
The main ones are rule-based, machine learning-based, and deep learning-based approaches to perform named entity recognition.
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altexsoft.com
altexsoft.com › blog › named-entity-recognition
What Is Named Entity Recognition (NER) and How It Works?
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DataCamp
datacamp.com › blog › what-is-named-entity-recognition-ner
What is Named Entity Recognition (NER)? Methods, Use Cases, and Challenges | DataCamp
September 13, 2023 - Named Entity Recognition (NER) ... that classifies named entities into predefined categories such as person names, organizations, locations, medical codes, time expressions, quantities, monetary values, and more...
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TechTarget
techtarget.com › whatis › definition › named-entity-recognition-NER
What Is Named Entity Recognition (NER)? | Definition from TechTarget
Named entity recognition (NER) is a natural language processing (NLP) method that extracts information from text. NER involves detecting and categorizing important information in text known as named entities.
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AltexSoft
altexsoft.com › blog › named-entity-recognition
What Is Named Entity Recognition (NER) and How It Works?
November 1, 2023 - Named entity recognition (NER) is a subfield of natural language processing (NLP) that focuses on identifying and classifying specific data points from textual content. NER works with salient details of the text, known as named entities — ...
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Medium
medium.com › mysuperai › what-is-named-entity-recognition-ner-and-how-can-i-use-it-2b68cf6f545d
What is named entity recognition (NER) and how can I use it? | by Christopher Marshall | super.AI | Medium
June 2, 2020 - Every detected entity is classified into a predetermined category. For example, an NER machine learning (ML) model might detect the word “super.AI” in a text and classify it as a “Company”. NER is a form of natural language processing (NLP), a subfield of artificial intelligence.
Find elsewhere
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IBM
ibm.com › think › topics › named-entity-recognition
What Is Named Entity Recognition? | IBM
3 weeks ago - Named entity recognition (NER) is a component of natural language processing (NLP) that identifies predefined categories of objects in a body of text.
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Turing
turing.com › kb › a-comprehensive-guide-to-named-entity-recognition
A Comprehensive Guide to Named Entity Recognition (NER)
Named entity recognition (NER) is a form of natural language processing (NLP) that involves extracting and identifying essential information from text. The information that is extracted and categorized is called entity.
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Coursera
coursera.org › coursera articles › data › ai and machine learning › what is named entity recognition (ner) and how does it work?
What Is Named Entity Recognition (NER) and How Does It Work? | Coursera
March 26, 2025 - Named entity recognition (NER) is a natural language processing (NLP) method, which is a subcategory of artificial intelligence (AI) and machine learning (ML). Although it isn’t exactly a household name, named entity recognition powers much ...
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Expressanalytics
expressanalytics.com › blog › what-is-named-entity-recognition-ner-benefits-use-cases-algorithms
What is Named Entity Recognition (NER): Benefits, Use Cases
October 28, 2024 - Named entity recognition (NER) is a process of identifying and classifying named entities in textual content. This can be beneficial for a variety of tasks, such as information extraction, question answering, and text summarization.
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Microsoft Learn
learn.microsoft.com › en-us › azure › ai-services › language-service › named-entity-recognition › overview
What is the Named Entity Recognition (NER) feature in Azure Language in Foundry Tools? - Foundry Tools | Microsoft Learn
3 weeks ago - To use named entity recognition, you submit raw unstructured text for analysis and handle the API output in your application. Analysis is performed as-is, with no additional customization to the model used on your data.
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ScienceDirect
sciencedirect.com › topics › computer-science › named-entity-recognition
Named Entity Recognition - an overview | ScienceDirect Topics
Named Entity Recognition (NER) is a fundamental subtask of information extraction and Natural Language Processing (NLP) that involves identifying and classifying specific entities within unstructured text. These entities include individuals, organizations, locations, dates, quantities, currencies, ...
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Encord
encord.com › blog › named-entity-recognition
What Is Named Entity Recognition? Selecting the Best Tool to Transform Your Model Training Data
January 22, 2025 - Named Entity Recognition (NER) ... involves locating and classifying named entities mentioned in unstructured text into predefined categories such as names, organizations, locations, dates, quantities, percentages, and monetary values...
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Papers with Code
paperswithcode.com › task › named-entity-recognition-ner
Named Entity Recognition (NER)
Segment Anything Model 3 achieves state-of-the-art performance in promptable concept segmentation and tracking by leveraging a unified model architecture with decoupled recognition and localization.
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GeeksforGeeks
geeksforgeeks.org › nlp › named-entity-recognition
Named Entity Recognition - GeeksforGeeks
October 4, 2025 - Named Entity Recognition (NER) in NLP focuses on identifying and categorizing important information known as entities in text. These entities can be names of people, places, organizations, dates, etc.
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arXiv
arxiv.org › html › 2411.05057v1
A Brief History of Named Entity Recognition
November 7, 2024 - A large amount of information in today’s world is now stored in knowledge bases. Named Entity Recognition (NER) is a process of extracting, disambiguation, and linking an entity from raw text to insightful and structured knowledge bases. More concretely, it is identifying and classifying ...
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Kili Technology
kili-technology.com › data-labeling › nlp › understanding-named-entity-recognition-text-classification
Understanding named entity recognition & text classification
Named Entity Recognition (NER) is a process in data science that involves identifying and labeling entities in textual data for further analysis. For instance, NER could recognize the term "Netflix" in a document and classify it as a "company."
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Microsoft Learn
learn.microsoft.com › en-us › azure › ai-services › language-service › named-entity-recognition › concepts › named-entity-categories
Entity categories recognized by Named Entity Recognition in Azure Language in Foundry Tools - Foundry Tools | Microsoft Learn
3 weeks ago - Named Entity Recognition (NER) is a computational linguistic process within natural language processing (NLP) that uses predictive models to detect and identify entities within unstructured text.
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Gramener Blog
blog.gramener.com › named-entity-recognition-ner
Named Entity Recognition: What Is It, How It Works & Use Cases
September 21, 2022 - It identifies named entities from texts on auto-pilot mode to classify them into predefined categories. Entities can be the names of people, businesses, cities, values, percentages, etc.
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YouTube
youtube.com › codebasics
Named Entity Recognition (NER): NLP Tutorial For Beginners - S1 E12 - YouTube
Named Entity Recognition, also known as NER is a technique used in NLP to identify specific entities such as a person, product, location, money, etc from the...
Published   June 3, 2022
Views   101K