Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

506
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
506
Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

77
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
77
Contemporary Psychology01:29

Contemporary Psychology

690
Psychology explores human behavior and mental processes through various lenses, each offering unique insights. This overview examines key subfields, including biopsychology, evolutionary, developmental, personality, and social psychology, highlighting their approaches and contributions to understanding complex human behaviors.
Biopsychology
Biopsychology, also known as biological psychology or behavioral neuroscience, focuses on the biological underpinnings of behavior and mental processes. It...
690
Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

19.6K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
19.6K
Collisions in Multiple Dimensions: Introduction01:05

Collisions in Multiple Dimensions: Introduction

5.5K
It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
5.5K
Outliers and Influential Points01:08

Outliers and Influential Points

4.2K
An outlier is an observation of data that does not fit the rest of the data. It is sometimes called an extreme value. When you graph an outlier, it will appear not to fit the pattern of the graph. Some outliers are due to mistakes (for example, writing down 50 instead of 500), while others may indicate that something unusual is happening. Outliers are present far from the least squares line in the vertical direction. They have large "errors," where the "error" or residual is the...
4.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same journal

Toward Cybersecurity Testing and Monitoring of IoT Ecosystems.

SN computer science·2026
Same journal

Voxel-based Deep Regression for Enhanced Body Composition Estimation from 3D Body Scans.

SN computer science·2026
Same journal

Detecting Adverse Drug Events in Social Media: A Brief Literature Review.

SN computer science·2026
Same journal

TRAM: The Telecommunications-Related AcciMap Method.

SN computer science·2026
Same journal

A Combinatorial Approach to Synthetic Data Generation for Machine Learning.

SN computer science·2026
Same journal

To Signal or Not to Signal? A Non-cooperative Game-Theoretic Approach to Discretionary Communication Between Road Users.

SN computer science·2025
See all related articles

Related Experiment Video

Updated: Aug 16, 2025

Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications
09:20

Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications

Published on: February 23, 2019

8.8K

Keyword Extraction: A Modern Perspective.

Tadashi Nomoto1

  • 1National Institute of Japanese Literature, Tachikawa, Tokyo 190-0014 Japan.

SN Computer Science
|December 20, 2022
PubMed
Summary
This summary is machine-generated.

This study traces the 50-year evolution of keyword extraction methods, from early statistics to modern neural networks. It analyzes diverse approaches to identify successful strategies for automatic term identification.

Keywords:
Automatic indexingHistorical surveyInformation extractionKeyword extractionMeta-analysisNatural language processingText generation

More Related Videos

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
07:50

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

Published on: September 20, 2018

16.0K
Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
06:48

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment

Published on: June 25, 2019

9.3K

Related Experiment Videos

Last Updated: Aug 16, 2025

Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications
09:20

Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications

Published on: February 23, 2019

8.8K
A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
07:50

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

Published on: September 20, 2018

16.0K
Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
06:48

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment

Published on: June 25, 2019

9.3K

Area of Science:

  • Natural Language Processing (NLP)
  • Information Retrieval (IR)
  • Machine Learning

Background:

  • Keyword extraction aims to identify key terms representing a document's topic.
  • Early methods relied on text statistics, with significant advancements in Information Retrieval (IR) driven by projects like DARPA's Topic Detection and Tracking (TDT).

Purpose of the Study:

  • To provide a historical overview of keyword extraction techniques over the past 50 years.
  • To analyze keyword extraction from multiple perspectives: statistics, Automatic Term Indexing (ATI), IR, NLP, and neural networks.
  • To conduct a meta-analysis to understand successful approaches across various domains.

Main Methods:

  • Historical literature review of keyword extraction methods.
  • Comparative analysis of statistical, ATI, IR, NLP, and neural network paradigms.
  • Meta-analysis of diverse datasets (news, science, medicine, business).

Main Results:

  • Identified the progression from statistical methods to more sophisticated techniques like Latent Dirichlet Allocation (LDA), PageRank, and neural networks.
  • Highlighted differences and similarities across various keyword extraction approaches.
  • Synthesized findings from a meta-analysis across multiple domains.

Conclusions:

  • Understanding the historical trajectory is crucial for developing effective keyword extraction systems.
  • A meta-analysis across diverse datasets provides a generalizable view of successful keyword extraction strategies.
  • Emerging neural paradigms represent the latest advancements in automatic term identification.