Fil

Make Patterns Pop Out of Heatmaps with Seriation
▻http://nicolas.kruchten.com/content/2018/02/seriation

My intention in writing this article was to provide a dramatic and easy to see example of the importance of the row and column orders in a heatmap and the benefits of seriation. To do so, I chose a dataset which is actually particularly amenable to seriation via the TSP approach: adjacent rows and columns in an image are extremely similar to each other, far more so than in most other kinds of datasets. Clearly, applying seriation techniques to most datasets will not generally yield photographs of me

http://nicolas.kruchten.com/seriation/clustered.png

#R #bertin #bertifier #diagonalisation

▻https://seenthis.net/messages/668239 via Fil

The way the world catches fish defies all economic logic — Quartz
▻https://qz.com/1195914/the-way-the-world-catches-fish-defies-all-economic-logic
https://qzprod.files.wordpress.com/2018/02/world-bank-changing-wealth-of-nations-fisheriescolorcorrected.jpeg?quality=80&strip=all&w=1600

The global fishing industry landed $164 billion worth of marine fish in 2014. However, taking into account labor, capital, and fuel costs and subsidies, global fisheries produced a net loss of $44 billion, according to the World Bank.

By encouraging more fishing than is economical, government subsidies crash the supply of fish all the more, says Glenn-Marie Lange, economist at the World Bank and one of the report’s authors.

“There are too many vessels out there that are not only financially unprofitable but fishing way beyond what can be regenerated by the natural population,” says Lange.

#pêche #surpêche #subventions #écologie #mers

▻https://seenthis.net/messages/668004 via Fil

Meet the pirate queen making academic papers free online - The Verge
▻https://www.theverge.com/2018/2/8/16985666/alexandra-elbakyan-sci-hub-open-access-science-papers-lawsuit
https://cdn.vox-cdn.com/thumbor/NYrqHuZ4NReWTK-QwtyWZ0Kftqs=/0x146:2040x1214/fit-in/1200x630/cdn.vox-cdn.com/uploads/chorus_asset/file/10179751/acastro_180207_2278_0004.jpg

[Alexandra] Elbakyan’s scientific communism mirrors the Western association between democracy and information openness.

#sci-hub

▻https://seenthis.net/messages/667967 via Fil

Brian House | Urban Intonation
▻https://brianhouse.net/works/urban_intonation

for Urban Intonation, I recorded rats at multiple sites in NYC with a custom ultrasonic microphone that I left in their burrows for 24-hour periods. I then pitch-shifted the result into the human auditory range and mixed it for multi-channel playback over a human public address system, repositioning rat vocalizations as something that is recognizable, if not intelligible, as (political) communication.

▻https://soundcloud.com/brianhouse/urban-intonation

#son #chant #rats #animaux @intempestive

▻https://seenthis.net/messages/667773 via Fil

En marche vers la transition écologique ? Un expert de l’énergie [Mycle Schneider] décrypte les mots du président sur le #nucléaire. | Public Senat
►https://www.publicsenat.fr/article/politique/com-une-image-en-marche-vers-la-transition-ecologique-un-expert-de-l-ene
▻https://www.dailymotion.com/video/x6ehhgn

▻https://seenthis.net/messages/667735 via Fil

ReCode Project
▻http://recodeproject.com

“Computer Graphics and Art” was a quarterly magazine published between 1976 and 1978. We are using PDF copies of the entire run of the magazine as our starting point for the project. The majority of the artworks have no code published alongside the original result, providing an opportunity for a variety of interpretations and approaches, all of which can become the starting point for a new work.

http://recodeproject.com/static/img/cards/v1n2/15.png
http://recodeproject.com/static/img/cards/v1n2/22.png

▻https://seenthis.net/messages/667648 via Fil

I Spent Two Years Trying to Fix the Gender Imbalance in My Stories - Ed Yong, The Atlantic
▻https://www.theatlantic.com/science/archive/2018/02/i-spent-two-years-trying-to-fix-the-gender-imbalance-in-my-stories/552404
https://cdn.theatlantic.com/assets/media/img/mt/2018/02/GettyImages_596568069/facebook.jpg?1517933891

Crucially, I tracked how I was doing in a simple spreadsheet. I can’t overstate the importance of that: It is a vaccine against self-delusion. It prevents me from wrongly believing that all is well. I’ve been doing this for two years now. Four months after I started, the proportion of women who have a voice in my stories hit 50 percent, and has stayed roughly there ever since, varying between 42 and 61 percent from month to month. And of the 312 stories I’ve written in that two-year window, only 7 percent feature no female voices. (This figure excludes the small number of stories that feature no voices of any gender.)

For the first year, I also tracked the number of people whom I asked for an interview, to check if I was actually contacting men and women in equal numbers and simply receiving a skewed set of replies. That wasn’t the case: In early 2016, women accounted for just 30 percent of people whom I contacted. As the year went on, I found that I would need to contact around 1.3 men to get one male quote, and around 1.6 women to get one female one. There are probably several reasons for this.

▻https://seenthis.net/messages/667175 via Fil

For inappropriate moments at work - Report workplace harassment and discrimination without talking to a human.
▻https://www.talktospot.com

▻https://seenthis.net/messages/666763 via Fil

The Dirty War Over Diversity Inside Google | WIRED
▻https://www.wired.com/story/the-dirty-war-over-diversity-inside-google
https://media.wired.com/photos/5a6932fc13a7916ca17dce02/191:100/pass/GoogleHarassment-131586587.jpg

It began subtly. Coworkers peppered mailing lists and company town halls with questions: What about meritocracy? Isn’t improving diversity lowering the bar? What about viewpoint diversity? Doesn’t this exclude white men?
(…) That’s when it clicked: perhaps some of her coworkers’ questions had not been in good faith. “We didn’t realize that there was a dirty war going on, and weren’t aware of the tactics being used against us,”

#trolls #manipulation #racisme #sexisme #transphobie #trumpisme #google

▻https://seenthis.net/messages/666209 via Fil

Cape Town’s Water is Running Out : Image of the Day
▻https://earthobservatory.nasa.gov/IOTD/view.php?id=91649
https://eoimages.gsfc.nasa.gov/images/imagerecords/91000/91649/theewatersklooof_oli_2018014.gif

Cape Town—a cosmopolitan city of 3.7 million people on South Africa’s western coast—is on the verge of running out of water. According to the city’s mayor, if current consumption patterns continue then drinking water taps will be turned off in April and people will have to start procuring water from one of 200 collection points throughout the city.

#eau #Cape_Town #Afrique_du_Sud #sécheresse #images_satellite

▻https://seenthis.net/messages/666093 via Fil

Obsessions, marottes et zones d’ombre : voici les sujets préférés de 50 sites d’info français | Dans mon labo
▻https://dansmonlabo.com/2018/02/01/obsessions-marottes-et-zones-dombre-voici-les-sujets-preferes-de-50-sit
https://dansmonlabo.com/wp-content/uploads/2018/02/marottes_illus-1024x768.png

Encore expérimentales, ces listes sont générées automatiquement, grâce à la reconnaissance d’entités nommées dans un corpus spécifique à chaque média.

#nlp #entités_nommées @booz

▻https://seenthis.net/messages/665973 via Fil

Joining the Dots - Arms Trade Hearings, South Africa
▻https://corruptiontribunal.org.za/joiningthedots

networks of powerful corporations, spies and politicians have operated within deep state networks for decades to profit from crimes at the expense of ordinary South African citizens. To truly understand the phenomenon of economic crime in South Africa we need to explore the origins and legacy of apartheid’s economic crimes and the long shadow they continue to cast today.

#rapport #armement #apartheid #corruption #afrique_du_sud

▻https://seenthis.net/messages/665976 via Fil

An Updated Lead-Crime Roundup for 2018, by Kevin Drum – Mother Jones
▻https://www.motherjones.com/kevin-drum/2018/02/an-updated-lead-crime-roundup-for-2018
https://www.motherjones.com/wp-content/uploads/2018/01/blog_lead_crime_illustration.jpg?w=956&h=597&crop=1

A few weeks ago I promised an updated roundup of evidence about the link between lead poisoning and violent crime. Here it is.

It’s in three parts. (…)

The lead-crime hypothesis is pretty simple: lead poisoning degrades the development of childhood brains in ways that increase aggression, reduce impulse control, and impair the executive functions that allow people to understand the consequences of their actions. Because of this, infants who are exposed to high levels of lead are more likely to commit violent crimes later in life. There are three types of research that confirm the connection between lead and crime

et parmi les prédictions :

Lead and terrorism. Based on when they banned leaded gasoline, I predict that Middle East terrorism will begin a long decline starting around 2020 or so.

#plomb #criminalité #santé_publique #cerveau #prison #études_récentes (à foison)

▻https://seenthis.net/messages/665931 via Fil

Guatemala’s Maya Society Featured Huge ’Megalopolis,’ LiDAR Data Show
▻https://news.nationalgeographic.com/2018/02/maya-laser-lidar-guatemala-pacunam
https://news.nationalgeographic.com/content/dam/news/2018/02/01/lidar-maya/01-lidar-maya.ngsversion.1517509810394.adapt.1900.1.jpg

Laser scans revealed more than 60,000 previously unknown Maya structures that were part of a vast network of cities, fortifications, farms, and highways.

https://news.nationalgeographic.com/content/dam/news/2018/02/01/lidar-maya/05-lidar-maya.adapt.945.1.jpg

▻https://seenthis.net/messages/665707 via Fil

The importance of being second
▻http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.2005203

we are formalizing a policy whereby manuscripts that confirm or extend a recently published study (“scooped” manuscripts, also referred to as complementary) are eligible for consideration at PLOS Biology.

(…) many journals will reject it citing lack of novelty. However, there is a self-evident benefit to publishing complementary research, and at PLOS Biology, we consider that two papers from two groups independently identifying the same phenomenon in parallel increase the confidence in the results of the work.

This new policy, acknowledging the value of complementary studies, therefore addresses the current concern regarding the reproducibility, or lack thereof, of scientific findings.

(…) We wish to recognize both the value of validating results and the researchers undertaking the work. Highlighting replication studies will ultimately prove positive for the public perception of science.

#recherche #réplication #bibliométrie

▻https://seenthis.net/messages/665334 via Fil

Post Mortem III · Mapzen
▻https://mapzen.com/blog/a-letter-just-to-you

Mapzen had a mandate to work only on open software and data, a very rare opportunity. Usually, companies that pursue open software or data draw a strategic line about what will be open and what will be proprietary. This makes a lot of sense; it was the case at my previous companies and will certainly be the case at my next company. But some kind of open strategy remains critical in mapping, a field dominated by incumbents who have invested billions of dollars and who use their advantages to restrict products across many industries. No one can compete in mapping at this point without embracing some collaborative efforts. At Mapzen, we went to the extreme and drew the line at near-zero proprietary elements, basically just this website and some operational code that didn’t make sense to publish.

Would I undertake this strategy again?

#logiciel_libre #open_data #cartographie #mapzen #post-mortem @b_b

▻https://seenthis.net/messages/664267 via Fil

PaintsChainer

AI-Powered Automatic Colorization

▻https://paintschainer.preferred.tech/index_en.html
https://paintschainer.preferred.tech/images/design-v2/index/cover_images/preset_pc_chan_color.jpg
#couleur #colorisation #machine_learning

je viens de tester avec l’image du roman-photo de ▻https://seenthis.net/messages/664204
et ça donne quelque chose d’étrange et presque beau

https://framapic.org/MF8TBNyeytuD/fCNg6CrOdnrj.jpg

▻https://seenthis.net/messages/664211 via Fil

What might explain the unhappiness epidemic? (A: screens) by Jean Twenge - Professor of Psychology, San Diego State University
▻http://theconversation.com/what-might-explain-the-unhappiness-epidemic-90212

In a new analysis of 1 million U.S. teens, my co-authors and I looked at how teens were spending their free time and which activities correlated with happiness, and which didn’t.

(…) every activity that didn’t involve a screen was linked to more happiness, and every activity that involved a screen was linked to less happiness. The differences were considerable: Teens who spent more than five hours a day online were twice as likely to be unhappy as those who spent less than an hour a day.

Of course, it might be that unhappy people seek out screen activities. However, a growing number of studies show that most of the causation goes from screen use to unhappiness, not the other way around.

#joie #écran

▻https://seenthis.net/messages/664034 via Fil

Mary Lee Berners-Lee, la maman de Tim, mérite mieux que le hashtag #grand_mère_du_web - Mary Lee Berners-Lee obituary | The Guardian
▻https://www.theguardian.com/technology/2018/jan/23/mary-lee-berners-lee-obituary
https://i.guim.co.uk/img/media/82853d6ed23ebc9d1febcc5b37f3c3088598df84/26_16_1220_732/master/1220.jpg?w=620&q=20&auto=format&usm=12&fit=max&dpr=2&s=321c94d428d13c069980ff59939814e8

The computer scientist Mary Lee Berners-Lee, who has died aged 93, was on the programming team for the computer that in 1951 became the first in the world to be sold commercially: the Ferranti Mark I. She led a successful campaign at Ferranti for equal pay for male and female programmers, almost two decades before the Equal Pay Act came into force. As a young mother in the mid-1950s she set up on her own as a home-based software consultant, making her one of the world’s first freelance programmers.

▻https://seenthis.net/messages/663353 via Fil

The Atlas Of Redistricting | FiveThirtyEight
▻https://projects.fivethirtyeight.com/redistricting-maps
https://espnfivethirtyeight.files.wordpress.com/2018/01/gerrymanderinginteractive-16x9.jpg

#gerrymandering #simulation #cartographie #États-Unis

▻https://seenthis.net/messages/663289 via Fil

Accessibility to Cities - MAP
▻https://map.ox.ac.uk/research-project/accessibility_to_cities
https://map.ox.ac.uk/wp-content/uploads/2018/01/Global_Accessibility_Image_Small.jpeg

In the present study, we quantify and validate global accessibility to high-density urban centres at a resolution of 1×1 kilometre for 2015, as measured by travel time. The last global mapping effort to measure accessibility was for the year 2000, a time that predates both substantial investment and expansion of transportation infrastructure and an extraordinary improvement in the data quantity and quality of accessibility measures. The game-changing improvement underpinning this work is the first-ever, global-scale synthesis of two leading roads datasets – #OpenStreetMap (OSM) data and #distance-to-roads data derived from the #Google_roads database – which resulted in a nearly five-fold increase in the mapped road area relative to that used to produce the circa 2000 map. A major strength of the new roads data is its inclusion of minor roads (e.g., unpaved rural roads), which comprise a large proportion of roads in many low-resource settings and were largely absent or geographically inaccurate in previous roads databases. As such, the improvements in our accessibility map are most prominent in the areas where quality data are most needed for informing sustainable development policies and actions. To illustrate the far-reaching utility of our 2015 global accessibility map, we conduct exploratory analyses that enumerate geographic and wealth-based inequities in accessibility. We also show that shorter travel times to population centres in low- to middle-income countries is strongly associated with socioeconomic and health indicators (i.e., household wealth, educational attainment, and healthcare utilization), highlighting the vital role of accessibility in the pursuit of sustainable development worldwide. Beyond the socioeconomic and health domains, this work could be used to inform environmental and conservation efforts to balance infrastructure demands with ecosystem preservation.

#accessibilité #datasource

c’est en quelque sorte la suite de ▻https://seenthis.net/messages/391490

▻https://roadlessforest.eu
▻https://www.nature.com/articles/nature25181

(déjà signalé par @reka ▻https://seenthis.net/messages/658906 )

▻https://seenthis.net/messages/663245 via Fil

A new look at Venus with Akatsuki | The Planetary Society
▻http://www.planetary.org/blogs/guest-blogs/2018/0116-a-new-look-at-venus-with-akatsuki.html
http://planetary.s3.amazonaws.com/assets/images/2-venus/20180113_uvi_20160517_201715_365_l2b_v10_PseudoRGB.jpg
http://planetary.s3.amazonaws.com/assets/images/2-venus/20180113_ir2_20160927_090331_226_l2b_v10_PRGB.jpg

This blog post is a collaboration between an image processing enthusiast (Damia Bouic) and three professional scientists (Thomas Widemann, Emmanuel Marcq, and Colin Wilson). Bouic has dived into a data set and processed images, and Widemann, Marcq, and Wilson have interpreted them.

#Venus #astronomie #espace

le blog de Damia Bouic : ▻http://www.db-prods.net/blog

▻https://seenthis.net/messages/661924 via Fil

List of U.S. Military Bases Abroad, 2017 - David Vine
▻https://dra.american.edu/islandora/object/auislandora%3A55678?solr_nav%255Bid%255D=a7ea38526e666fd17dec&solr_nav

#datasource #bases_militaires #États-Unis

avec une visualisation ici
▻http://bl.ocks.org/julesblm/0f8578f9307f60df1cbe216d3d31d985

et un livre
▻http://us.macmillan.com/basenation/davidvine/9781627791694

▻https://seenthis.net/messages/661777 via Fil

Roads and Bridges: The Unseen Labor Behind Our Digital Infrastructure (2016)
▻https://www.fordfoundation.org/library/reports-and-studies/roads-and-bridges-the-unseen-labor-behind-our-digital-infrastructure
#logiciel_libre #financement

▻https://seenthis.net/messages/661775 via Fil

Antoine Petit est nommé précipitamment à la présidence du CNRS
▻https://www.sciencesetavenir.fr/politique/antoine-petit-est-nomme-precipitamment-a-la-presidence-du-cnrs_1200

(#nommé_précipitamment à la tête de l’#IHEST il n’y a même pas un an après les accusations de plagiat contre Étienne Klein, le directeur de l’#INRIA est maintenant nommé précipitamment président du #CNRS suite aux accusations de manipulations de résultats contre Anne Peyroche)

▻https://forbetterscience.com/2018/01/19/anne-peyroche-removed-as-interim-cnrs-president-as-her-publication

#recherche #france via @amtpl

▻https://seenthis.net/messages/661534 via Fil