Related Experiment Video
Updated: Aug 15, 2025

11:52
Temporal Ordering of Dynamic Expression Data from Detailed Spatial Expression Maps
Published on: February 9, 2017
6.0K
Chaining and the temporal dynamics of scientists' publishing behaviour
1Language Technologies Institute, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, United States of America.
Plos One
|December 29, 2022
Summary
Scientists build on past research, publishing incrementally. This study reveals a consistent pattern of "exemplar-based chaining" in scientific careers across diverse fields over the last century.
Area of Science:
- Philosophy of Science
- History of Science
- Bibliometrics
- Scientometrics
Background:
- Characterizing scientific progress quantitatively is established, but individual scientists' career progression remains less understood.
- Previous research has focused on field-level scientific change, leaving a gap in understanding individual career trajectories.
- A comprehensive, large-scale analysis of individual scientists' publishing dynamics is needed.
Purpose of the Study:
- To characterize the regularity in temporal publishing dynamics of individual scientists.
- To explore how scientists build upon their previous work throughout their careers.
- To identify common patterns in scientific career progression across different disciplines.
Main Methods:
- Utilized computational algorithms to predict the historical order of publications from individual scientists.
- Analyzed publishing behavior of 1,164 award-winning and random-sampled scientists.
- Examined data from Physics, Chemistry, Medicine, Economics, and Computer Science over the past century.
Main Results:
- Discovered that scientists' publishing behavior follows a "chaining" process, similar to historical word meaning extension.
- Identified "exemplar-based chaining" as a predominant pattern, where new ideas connect to proximal existing ones.
- Found consistent publishing behavior across diverse scientific fields, characterized by incremental steps building on past research.
Conclusions:
- Scientists across various fields exhibit similar publishing dynamics over time.
- Individual scientific progress is largely characterized by incremental advancements building on prior work.
- The findings provide large-scale evidence for a shared, incremental model of scientific career progression.
Related Concept Videos
Speciation Rates
21.3K
Overview
21.3K
The Fossil Record
25.3K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
25.3K
Frequency-dependent Selection
22.2K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.2K
Radical Chain-Growth Polymerization: Chain Branching
2.0K
The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical polymerization results in a low-density grade of polyethylene with a heavily branched skeletal structure. Here, the radical site abstracts hydrogen from the growing chain, and the radical site shifts from the end (a primary carbon center) to anywhere within the growing chain (a secondary carbon center). Consequently, the part of the chain from the...
2.0K
What is Behavior?
9.3K
Behaviors are actions that an organism engages in—they can be related to finding food, reproducing, defending against threats, and many other possible actions. Behaviors include activities related to the environment around the animal—such as migration—as well as social interactions within a species or population. Many behaviors involve motor output—that is, muscle movements—while others involve less visible actions, such as learning.
9.3K
Phylogeny
45.2K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
45.2K

