Natural language processing (NLP)

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The study of how to make computers understand and generate human language, including tasks such as language identification, syntactic analysis, and machine translation.

Linguistics: Understanding the basics of linguistics such as phonetics, phonology, morphology, syntax, semantics, and pragmatics is essential. It helps in understanding the structure of human language and its application to NLP.
Machine Learning: NLP heavily relies on machine learning algorithms like supervised and unsupervised learning. Therefore, it is necessary to learn about concepts such as data classification, regression analysis, and clustering.
Data Structures and Algorithms: NLP deals with large volumes of data. Therefore, knowledge of essential data structures such as arrays, hash tables, trees, and graphs are essential. Additionally, algorithms like BFS, DFS, and search algorithms play a vital role in NLP.
Programming Languages: Different programming languages are used in the development of NLP applications. Familiarity with programming languages like Python, Java, and C++ is necessary.
Corpus Linguistics: A corpus is a structured collection of texts. It is crucial in the development of NLP applications. Therefore, it is necessary to learn about corpus creation, management, and analysis.
Statistic Methods: NLP approaches like statistical methods play a crucial role in the development of NLP models like language modelling, part-of-speech tagging, and text classification.
Semantic Analysis: Semantic analysis deals with linguistic semantics and introduces the use of NLP techniques like syntactic analysis, ontology, and word sense disambiguation.
Natural Language Generation (NLG): NLG is the process of generating sentences from data. It is an essential application of NLP and involves the application of concepts such as syntax and semantics.
Machine Translation: Machine translation is the process of automatically translating one human language into another. It involves the application of techniques like statistical models, neural networks, and rule-based approaches.
Sentiment Analysis: Sentiment analysis is the process of determining the sentiment of a document or a part of it, by identifying the tone of writing used. It helps in customer feedback analysis.
Information Retrieval: Information retrieval deals with the searching of relevant documents from a large text corpus. It involves the application of indexing, retrieval, and ranking algorithms.
Named Entity Recognition (NER): NER is an essential technique used in NLP. It is the process of identifying and classifying named entities like People, Places, and Organizations from text.
Speech Recognition: Speech recognition is the process of automatically recognizing speech through a machine. It is essential in the development of applications like voice assistants.
Discourse Analysis: Discourse analysis studies the relationships between texts and conversations, and identifies the structure and function of language. It helps in identifying the discourse and developing coherent responses.
Dialogue Systems: A dialogue system is an application that facilitates communication between humans and machines. It can be chatbots or voice assistants. It involves the application of techniques like dialogue act recognition, intent recognition, and spoken language understanding.
Text Mining: Text mining deals with the extraction of valuable information from large text corpora using NLP techniques. It involves the application of techniques like text classification, clustering, and topic modelling.
Knowledge Representation: Knowledge representation is the process of representing and storing knowledge that can be used for reasoning purposes. It involves techniques like First-order logic, Ontology, and Semantic Networks.
Word Embeddings: Word Embeddings is a technique used for learning vector representations of words based on their meanings. It helps in the understanding of the contextual meaning of words in the natural language.
Neural Networks and Deep Learning: Deep Learning and Neural Networks are rapidly gaining popularity in NLP. It involves techniques such as Convolutional Neural Networks, Recurrent Neural Networks, and deep learning frameworks such as TensorFlow and Keras.
Ontology and Taxonomy Development: Ontology and Taxonomy are essential for the successful development of NLP systems and applications. It involves the creation of user-centric hierarchical taxonomies and semantic ontologies.
Natural Language Understanding (NLU): Natural Language Understanding is the process of interpreting the meaning of language in a way humans can understand. NLU involves techniques like Named Entity Recognition, Sentiment Analysis, and Text Classification.
Multi-lingual NLP: Multi-Lingual NLP involves developing systems and applications to process and comprehend multiple languages. It involves the development of language models, language-specific Corpus Building, and Translation systems.
Application Development: Finally, it is essential to learn about the development of NLP applications. It involves the integration of different techniques, frameworks, and algorithms outlined above to develop solutions for real-world problems.
Part-of-speech (POS) tagging: The process of identifying and assigning the grammatical category of each word in a text.
Named entity recognition (NER): Identifying the names of people, organizations, locations, and other entities in a text.
Sentiment analysis: Analyzing the emotion or polarity of a statement or document.
Text classification: Assigning one or more predefined labels to a text based on its content.
Topic modeling: Identifying topics or themes within a document or a corpus of documents.
Dependency parsing: Analyzing the grammatical structure of a sentence, including the relationships between its constituent words.
Information extraction (IE): Identifying and extracting structured data from unstructured text, such as dates, locations, or product names.
Machine translation (MT): Translating one or more languages to another language automatically.
Text summarization: Generating a shorter version of a longer text while preserving its most significant content.
Question answering (QA): Providing answers to questions based on a given corpus of texts.
Text generation: Creating new texts, such as stories, poems, or news articles, based on a given set of guidelines or criteria.
Speech recognition: Converting spoken language into written text automatically.
Natural language generation (NLG): The opposite of NLU, wherein NLG systems generate human-level language from structured data or instructions.
Quote: "Natural language processing (NLP) is an interdisciplinary subfield of computer science and linguistics."
Quote: "It is primarily concerned with giving computers the ability to support and manipulate speech."
Quote: "It involves processing natural language datasets, such as text corpora or speech corpora."
Quote: "It involves processing natural language datasets, such as text corpora or speech corpora, using either rule-based or probabilistic machine learning approaches."
Quote: "The goal is a computer capable of 'understanding' the contents of documents, including the contextual nuances of the language within them."
Quote: "The technology can then accurately extract information and insights contained in the documents as well as categorize and organize the documents themselves."
Quote: "Challenges in natural language processing frequently involve speech recognition, natural-language understanding, and natural-language generation."
Quote: "Natural language processing (NLP) is an interdisciplinary subfield of computer science and linguistics."
Quote: "Natural language processing (NLP) is an interdisciplinary subfield of computer science and linguistics."
Quote: "It is primarily concerned with giving computers the ability to support and manipulate speech."
Quote: "It involves processing natural language datasets, such as text corpora or speech corpora, using either rule-based or probabilistic machine learning approaches."
Quote: "The technology can then accurately extract information and insights contained in the documents."
Quote: "The goal is a computer capable of 'understanding' the contents of documents, including the contextual nuances of the language within them."
Quote: "The technology can then accurately extract information and insights contained in the documents as well as categorize and organize the documents themselves."
Quote: "It involves processing natural language datasets, such as text corpora or speech corpora, using either rule-based or probabilistic machine learning approaches."
Quote: "It involves processing natural language datasets, such as text corpora or speech corpora, using either rule-based or probabilistic machine learning approaches."
Quote: "Challenges in natural language processing frequently involve speech recognition, natural-language understanding, and natural-language generation."
Quote: "Natural language processing (NLP) is an interdisciplinary subfield of computer science and linguistics."
Quote: "It involves processing natural language datasets, such as text corpora or speech corpora."
Quote: "The technology can then accurately extract information and insights contained in the documents."