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pierredv : semantics   8

Muddled meanings hamper efforts to fix reproducibility crisis : Nature News & Comment
Various definitions:
1. “Reproduction is taking the idea of a scientific project and showing that it is robust enough to survive various sorts of analysis”
2. "a finding is reproducible if another researcher gets the same results when doing exactly the same experiment"
3. "a reproducible experiment is merely one that has been published with a sufficiently complete description — such as detailed methods — for another scientist to repeat it"

“Reproducibility is shorthand for a lot of problems,” -- Jon Lorsch

"researchers at the Meta-Research Innovation Center at Stanford in California proposed three [expanded terms]: methods reproducibility, results reproducibility and inferential reproducibility, mapping roughly onto the three concepts described by Fang [above]."

"Victoria Stodden, a data scientist at the University of Illinois at Urbana-Champaign, makes the distinction between ‘empirical’ reproducibility (supplying all the details necessary for someone to physically repeat and verify an experiment) and ‘computational’ and ‘statistical’ reproducibility, which refer to the resources needed to redo computational and analytical findings"

"a white paper by the American Society for Cell Biology in Bethesda dismissed reproducibility as a catch-all term, and introduced a four-tier definition instead. According to this paper, “analytic replication” refers to attempts to reproduce results by reanalysing original data; “direct replication” refers to efforts to use the same conditions, materials and methods as an original experiment; “systematic replication” describes efforts to produce the same findings using different experimental conditions (such as trying an experiment in a different cell line or mouse strain), and “conceptual replication”, which refers to attempts to demonstrate the general validity of a concept, perhaps even using different organisms"

"a paper that aimed to distil best practices for neuroimaging outlined 10 levels of reproducibility in such experiments across three categories, called ‘measurement stability’, ‘analytical stability’ and ‘generalizability’."
reproducibility  definitions  semantics  scientific-method  NatureJournal 
july 2018 by pierredv
Three very confusing telecoms terms - Martin Geddes
For #1 "Best effort": “You got what you got” or (more formally) “nondeterministic performance”. Note that this is qualitatively worse than “random”, since random means it has properties that should hold over time, whereas nondeteriministic means no such assumption can be made. #3 Network "speed": The idea of “speed” conflates packet (de)serialisation time (i.e. how long it takes to “squirt” the packet over a link) with low contention (due to network idleness). It also conflates “speed of response” (delay) with “speed of download” (capacity). Better alternative(s)? Use “capacity” for capacity, “timely” for low latency and loss, and “responsive” for good (interactive) application performance.
Martin-Geddes  networking  semantics  terminology 
january 2016 by pierredv
AI tool scours all the science on the web to find new knowledge - New Scientist 7 Nov 2015
"Semantic Scholar, which launches today from the Seattle-based Allen Institute for Artificial Intelligence (AI2), can automatically read, digest and categorise findings from the estimated 2 million scientific papers published each year"
NewScientist  AI  search  Seattle  semantics  AI2 
december 2015 by pierredv
Are there really 50 Eskimo words for snow? - environment - 03 January 2013 - New Scientist
David Robson's article on work by Igor Krupnik and other linguists suggesting that there is evidence for a rich snow vocabulary in some Eskimo languages It seems in part an argument about _concept boundaries_
words  semantics  NewScientist  meaning  conceptualization  linguistics 
february 2013 by pierredv
The Lexicon of Networking Economics « Virulent Word of Mouse
teases apart different meanings of network, e.g. network of connected pieces vs. network of suppliers. "Not surprisingly, confusion arises because many of the markets in which network effects arise are also the markets in which the other meanings of network also arise."
semantics  networking  economics  virulentwordofmouse 
september 2011 by pierredv
The Space Review: Space Age hieroglyphs (page 1)
what you can learn by reading between the lines of the commemorative patches for classified space missions
design  semantics  semiology  via:gmsv 
august 2008 by pierredv
Words and chords. The semantic shifts of the Beatles' chords
finding patterns in the chord shifts, and links of clusters of chord shifts to transitions in the lyrics
music  via:gmsv  semantics 
july 2008 by pierredv

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