What Is NLP? Natural Language Processing Explained

Natural language processing is a branch of AI that enables computers to understand, process, and generate language just as people do — and its use in business is rapidly growing.

Natural language processing definition

Natural language processing (NLP) is the branch of artificial intelligence (AI) that deals with training computers to understand, process, and generate language. Search engines, machine translation services, and voice assistants are all

While the term originally referred to a system's ability to read, it's since become a colloquialism for all computational linguistics. Subcategories include natural language generation (NLG) — a computer's ability to create communication of its own — and natural language understanding (NLU) — the ability to understand slang, mispronunciations, misspellings, and other variants in language.

The introduction of transformer models in the 2017 paper "Attention Is All You Need" by Google researchers revolutionized NLP, leading to the creation of generative AI models such as Bidirectional Encoder Representations from Transformer (BERT) and subsequent DistilBERT — a smaller, faster, and more efficient BERT — Generative Pre-trained Transformer (GPT), and Google Bard.

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How natural language processing works

NLP leverages machine learning (ML) algorithms trained on unstructured data, typically text, to analyze how elements of human language are structured together to impart meaning. Phrases, sentences, and sometimes entire books are fed into ML engines where they're processed using grammatical rules, people's real-life linguistic habits, and the like. An NLP algorithm uses this data to find patterns and extrapolate what comes next. For example, a translation algorithm that recognizes that, in French, "I'm going to the park" is "Je vais au parc" will learn to predict that "I'm going to the store" also begins with "Je vais au." All the algorithm then needs is the word for "store" to complete the translation task.

NLP applications

Machine translation is a powerful NLP application, but search is the most used. Every time you look something up in Google or Bing, you're helping to train the system. When you click on a search result, the system interprets it as confirmation that the results it has found are correct and uses this information to improve search results in the future.

Chatbots work the same way. They integrate with Slack, Microsoft Messenger, and other chat programs where they read the language you use, then turn on when you type in a trigger phrase. Voice assistants such as Siri and Alexa also kick into gear when they hear phrases like "Hey, Alexa." That's why critics say these programs are always listening; if they weren't, they'd never know when you need them. Unless you turn an app on manually, NLP programs must operate in the background, waiting for that phrase.

Transformer models take applications such as language translation and chatbots to a new level. Innovations such as the self-attention mechanism and multi-head attention enable these models to better weigh the importance of various parts of the input, and to process those parts in parallel rather than sequentially.

Rajeswaran V, senior director at Capgemini, notes that Open AI's GPT-3 model has mastered language without using any labeled data. By relying on morphology — the study of words, how they are formed, and their relationship to other words in the same language — GPT-3 can perform language translation much better than existing state-of-the-art models, he says.

NLP systems that rely on transformer models are especially strong at NLG.

Natural language processing examples

Data comes in many forms, but the largest untapped pool of data consists of text — and unstructured text in particular. Patents, product specifications, academic publications, market research, news, not to mention social media feeds, all have text as a primary component and the volume of text is constantly growing. Apply the technology to voice and the pool gets even larger. Here are three examples of how organizations are putting the technology to work:

Edmunds drives traffic with GPT: The online resource for automotive inventory and information has created a ChatGPT plugin that exposes its unstructured data — vehicle reviews, ratings, editorials — to the generative AI. The plugin enables ChatGPT to answer user questions about vehicles with its specialized content, driving traffic to its website.

Eli Lilly overcomes translation bottleneck: With global teams working in a variety of languages, the pharmaceutical firm developed Lilly Translate, a home-grown NLP solution, to help translate everything from internal training materials and formal, technical communications to regulatory agencies. Lilly Translate uses NLP and deep learning language models trained with life sciences and Lilly content to provide real-time translation of Word, Excel, PowerPoint, and text for users and systems.

Accenture uses NLP to analyze contracts: The company's Accenture Legal Intelligent Contract Exploration (ALICE) tool helps the global services firm's legal organization of 2,800 professionals perform text searches across its million-plus contracts, including searches for contract clauses. ALICE uses "word embedding" to go through contract documents paragraph by paragraph, looking for keywords to determine whether the paragraph relates to a particular contract clause type.

Natural language processing software

Whether you're building a chatbot, voice assistant, predictive text application, or other application with NLP at its core, you'll need tools to help you do it. According to Technology Evaluation Centers, the most popular software includes:

Natural Language Toolkit (NLTK), an open-source framework for building Python programs to work with human language data. It was developed in the Department of Computer and Information Science at the University of Pennsylvania and provides interfaces to more than 50 corpora and lexical resources, a suite of text processing libraries, wrappers for natural language processing libraries, and a discussion forum. NLTK is offered under the Apache 2.0 license.

Mallet, an open-source, Java-based package for statistical NLP, document classification, clustering, topic modeling, information extraction, and other ML applications to text. It was primarily developed at the University of Massachusetts Amherst.

SpaCy, an open-source library for advanced natural language processing explicitly designed for production use rather than research. Licensed by MIT, SpaCy was made with high-level data science in mind and allows deep data mining.

Amazon Comprehend. This Amazon service doesn't require ML experience. It's intended to help organizations find insights from email, customer reviews, social media, support tickets, and other text. It uses sentiment analysis, part-of-speech extraction, and tokenization to parse the intention behind the words.

Google Cloud Translation. This API uses NLP to examine a source text to determine language and then use neural machine translation to dynamically translate the text into another language. The API allows users to integrate the functionality into their own programs.

Natural language processing courses

There's a wide variety of resources available for learning to create and maintain NLP applications, many of which are free. They include:

NLP – Natural Language Processing with Python from Udemy. This course provides an introduction to natural language processing in Python, building to advanced topics such as sentiment analysis and the creation of chatbots. It consists of 11.5 hours of on-demand video, two articles, and three downloadable resources. The course costs $94.99, which includes a certificate of completion.

Data Science: Natural Language Processing in Python from Udemy. Aimed at NLP beginners who are conversant with Python, this course involves building a number of NLP applications and models, including a cipher decryption algorithm, spam detector, sentiment analysis model, and article spinner. The course consists of 12 hours of on-demand video and costs $99.99, which includes a certificate of completion.

Natural Language Processing Specialization from Coursera. This intermediate-level set of four courses is intended to prepare students to design NLP applications such as sentiment analysis, translation, text summarization, and chatbots. It includes a career certificate.

Hands On Natural Language Processing (NLP) using Python from Udemy. This course is for individuals with basic programming experience in any language, an understanding of object-oriented programming concepts, knowledge of basic to intermediate mathematics, and knowledge of matrix operations. It's completely project-based and involves building a text classifier for predicting sentiment of tweets in real-time, and an article summarizer that can fetch articles and find the summary. The course consists of 10.5 hours of on-demand video and eight articles, and costs $19.99, which includes a certificate of completion.

Natural Language Processing in TensorFlow by Coursera. This course is part of Coursera's TensorFlow in Practice Specialization, and covers using TensorFlow to build natural language processing systems that can process text and input sentences into a neural network. Coursera says it's an intermediate-level course and estimates it will take four weeks of study at four to five hours per week to complete.

NLP salaries

Here are some of the most popular job titles related to NLP and the average salary (in US$) for each position, according to data from PayScale.

Computational linguist: $60,000 to $126,000

Data scientist: $79,000 to $137,000

Data science director: $107,000 to $215,000

Lead data scientist: $115,000 to $164,000

Machine learning engineer: $83,000 to $154,000

Senior data scientist: $113,000 to $177,000

Software engineer: $80,000 to $166,000

Natural Language Processing (Nlp) In Healthcare And Life Sciences Market Analysis 2023-2029 X Herald

(MENAFN- Ameliorate Digital Consultancy)

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COTA Wins Google Cloud Customer Of The Year Award For Using AI To Improve Cancer Care

NEW YORK, Aug. 29, 2023 /PRNewswire/ -- COTA today announced that it has received both the 2023 Google Cloud Customer of the Year Award and the Diversity, Equity, and Inclusion Award for its work using AI to accelerate the abstraction, validation and use of real-world data, sourced from electronic health records, to bring clarity to cancer care.

COTA was recognized for its achievements in the Google Cloud ecosystem and is building a series of new AI and natural language processing (NLP) models tailored to unstructured oncology data. The ultimate goal of this work is to ensure that all patients receive high-quality care regardless of who they are or where they live. These models will help COTA and its customers achieve faster, easier and better understanding of what is happening in the cancer care setting and how a patient's clinical history may impact their response to treatment.

"Real-world data is key to unlocking insights that can improve individual patient outcomes across the entire healthcare ecosystem. With AI, we can dramatically accelerate the process of creating high-quality data responsibly so that we can uncover disparities and improve cancer treatment," Miruna Sasu, President and CEO, COTA. "Our partnership with Google Cloud is vital in helping advance this important work."

"The Google Cloud Customer Awards are an opportunity to recognize the most innovative, technically advanced, and transformative cloud deployments across industries, from around the globe, built on our platform," said Brian Hall, VP of Product and Industry Marketing at Google Cloud. "I want to congratulate COTA on achieving this award and serving as an innovator for the industry."

The electronic health record (EHR) has revolutionized the way healthcare providers capture data, but challenges remain in transforming raw, unstructured health data into a usable format. COTA is tackling this challenge head-on, with the goal of fueling a new era of data-driven cancer care.

COTA augments manual, human-led data abstraction with technology-first abstraction and curation best practices - and in some cases, eliminates human intervention completely. This approach provides access to even more advanced data elements that may be buried in unstructured clinical notes. For example, next-generation genomic sequencing is becoming particularly important for personalizing cancer care. The reports providers receive from the genetic testing labs are often in a PDF format that traditional tools like optical character recognition (OCR) can't accurately "read", so this data often goes unused today.

COTA programmatically ingests data, then it is cleaned and mapped against control data to standardize the ontologies like regimens, histology, labs, and demographics. Using NLP and semi-structured data mining for a select number of data elements like molecular markers, adverse events, and comorbidities, COTA is speeding up the process and making it more efficient.

About COTA, Inc.

Founded by oncologists, COTA is committed to creating a precise, patient-first approach to cancer care through the use of real-world data. The company leverages technology-supported data abstraction methods to make sense of complex, fragmented patient data from the real world. Offering the highest quality oncology real-world data from leading academic and community-based cancer centers and an advanced analytics platform, COTA partners with leading life sciences companies, providers, and payers to ensure that everyone touched by cancer has a clear path to the right care. To learn more about COTA and how to fast-track improvements in cancer care and treatment with comprehensive and diverse real-world data and analytics, visit cotahealthcare.Com.

CONTACT: Jaimee Ryan, [email protected]

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SOURCE Cota, Inc.

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