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Les mystères de l'innovation

Les mystères de l'innovation | Intelligence | Scoop.it
Les innovations sont partout autour de nous, mais leur contribution à la productivité ne se reflète ni dans les statistiques du PIB ni dans le...

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Le vertige technologique masque un déficit majeur d'Innovation organisationnelle

Le vertige technologique masque un déficit majeur d'Innovation organisationnelle | Intelligence | Scoop.it
Les objets technologiques mettent parfois des années pour révéler les domaines sur lesquels ils agiront et quelles nouvelles applications ils (...)

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Stéphane NEREAU's curator insight, July 28, 2:56 AM

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Rescooped by Jean-Michel Livowsky from Complex World
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Connecting Core Percolation and Controllability of Complex Networks

Connecting Core Percolation and Controllability of Complex Networks | Intelligence | Scoop.it
Core percolation is a fundamental structural transition in complex networks related to a wide range of important problems. Recent advances have provided us an analytical framework of core percolation in uncorrelated random networks with arbitrary degree distributions. Here we apply the tools in analysis of network controllability. We confirm analytically that the emergence of the bifurcation in control coincides with the formation of the core and the structure of the core determines the control mode of the network. We also derive the analytical expression related to the controllability robustness by extending the deduction in core percolation. These findings help us better understand the interesting interplay between the structural and dynamical properties of complex networks.

Via Shaolin Tan, Alejandro J. Alvarez S., Tim Williamson, NESS, Claudia Mihai
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Sibout Nooteboom's curator insight, July 13, 12:52 AM

Fascinating advances

Rescooped by Jean-Michel Livowsky from Intelligence stratégique et économique
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Espionnage : des politiciens allemands pensent à la machine à écrire

Espionnage : des politiciens allemands pensent à la machine à écrire | Intelligence | Scoop.it
Une chose est sûre (ou pas), une machine à écrire ne pourra jamais être piratée.

Via Aurélie Thev'
Jean-Michel Livowsky's insight:

FAUX ! C'est presque plus facile à pirater qu'un ordinateur !

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Rescooped by Jean-Michel Livowsky from Intelligence stratégique et économique
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La NSA autorisée à espionner 193 pays et institutions dès 2010

La NSA autorisée à espionner 193 pays et institutions dès 2010 | Intelligence | Scoop.it
Non seulement la NSA a eu l'autorisation d'espionner à tout va, mais la liste fournie par le Washington Post est disponible dans cet article! Et quelle liste! Avec des "amis" comme cela, il n'y a v...

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Rescooped by Jean-Michel Livowsky from Complex World
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Experimental evidence of massive-scale emotional contagion through social networks

Experimental evidence of massive-scale emotional contagion through social networks | Intelligence | Scoop.it

We show, via a massive (N = 689,003) experiment on Facebook, that emotional states can be transferred to others via emotional contagion, leading people to experience the same emotions without their awareness. We provide experimental evidence that emotional contagion occurs without direct interaction between people (exposure to a friend expressing an emotion is sufficient), and in the complete absence of nonverbal cues.


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Rescooped by Jean-Michel Livowsky from Influence et contagion
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The evolution of #memes on Facebook | #SNA #contagion

The evolution of #memes on Facebook | #SNA #contagion | Intelligence | Scoop.it

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luiy's curator insight, June 22, 7:36 AM

A meme is an idea that is readily transmitted from person to person. But we humans are not perfect transmitters. While sometimes we repeat the idea exactly, often we change the meme, either unintentionally, or to embellish or improve it. 

 

Take for example, the meme: 

“No one should die because they cannot afford health care, and no one should go broke because they get sick. If you agree, post this as your status for the rest of the day”. 

 

In September of 2009, over 470,000 Facebook users posted this exact statement as their status update. At some point someone created a variant by prepending "thinks that'' (which would follow the individual's name, e.g., “Sam thinks that no one…”), which was copied 60,000 times. The third most popular variant inserted "We are only as strong as the weakest among us'' in the middle. “The rest of the day” at one point (probably in the late evening hours) became “the next 24 hours”. Others abbreviated it to “24 hrs”, or extended it to “the rest of the week”.

 

 

Modeling memes as genes

 

So can memes really be modeled as genes? After all, Richard Dawkins originally coined the word "meme” to draw the analogy to genes when describing how ideas or messages replicate and evolve[1]. How would one test the hypothesis that memes undergo a process akin to biological evolution? First, tracing biological evolution is notoriously difficult because one must discern the lineage of specific genetic sequences through generations, without having the genetic sequence of many intermediate instances. But when studying Facebook memes, we have a very unique opportunity* to actually trace when copies and mutations occurred, and these are the two basic ingredients in the evolutionary process.

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Visualizing Categorical Data as Flows with Alluvial Diagrams | #dataviz #methods #tools

Visualizing Categorical Data as Flows with Alluvial Diagrams | #dataviz #methods #tools | Intelligence | Scoop.it

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luiy's curator insight, June 7, 9:04 AM

Alluvial diagrams are a type of flow diagram that  have traditionally been used to visually show changes in network structures over time. Density Design has included Alluvial Diagrams in their RAW online visualization tool and explored its use to show “relations between dimensions of categorical data.”

 

RAW is such a wonderfully easy tool to use that I wanted to explore the Alluvial diagram functionality with a few different data sets to see how the visualizations would come out.

 

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Nonlinear Dynamics and Chaos - Steven Strogatz, Cornell University - YouTube

Nonlinear Dynamics and Chaos - Steven Strogatz, Cornell University - YouTube | Intelligence | Scoop.it

This course of 25 lectures, filmed at Cornell University in Spring 2014, is intended for newcomers to nonlinear dynamics and chaos. It closely follows Prof. Strogatz's book, "Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry, and Engineering." The mathematical treatment is friendly and informal, but still careful. Analytical methods, concrete examples, and geometric intuition are stressed. The theory is developed systematically, starting with first-order differential equations and their bifurcations, followed by phase plane analysis, limit cycles and their bifurcations, and culminating with the Lorenz equations, chaos, iterated maps, period doubling, renormalization, fractals, and strange attractors. A unique feature of the course is its emphasis on applications. These include airplane wing vibrations, biological rhythms, insect outbreaks, chemical oscillators, chaotic waterwheels, and even a technique for using chaos to send secret messages. In each case, the scientific background is explained at an elementary level and closely integrated with the mathematical theory. The theoretical work is enlivened by frequent use of computer graphics, simulations, and videotaped demonstrations of nonlinear phenomena. The essential prerequisite is single-variable calculus, including curve sketching, Taylor series, and separable differential equations. In a few places, multivariable calculus (partial derivatives, Jacobian matrix, divergence theorem) and linear algebra (eigenvalues and eigenvectors) are used. Fourier analysis is not assumed, and is developed where needed. Introductory physics is used throughout. Other scientific prerequisites would depend on the applications considered, but in all cases, a first course should be adequate preparation

 

Nonlinear Dynamics and Chaos - Steven Strogatz, Cornell University

https://www.youtube.com/playlist?list=PLbN57C5Zdl6j_qJA-pARJnKsmROzPnO9V


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Jean-Michel Livowsky's insight:

Nonlinear Dynamics and Chaos

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Jean-Michel Livowsky's curator insight, June 2, 12:22 AM

Nonlinear Dynamics and Chaos...

Rescooped by Jean-Michel Livowsky from Intelligence stratégique et économique
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Le dépôt des titres de propriété industrielle auprès de l'INPI évolue !

Le dépôt des titres de propriété industrielle auprès de l'INPI évolue ! | Intelligence | Scoop.it
L'Institut national de la propriété industrielle a pris une décision modifiant la procédure de dépôt des titres de propriété industrielle par télécopie.

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Rescooped by Jean-Michel Livowsky from Semantic Sphere
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Avec l'Hypercortex, l'humanité commencera à devenir intelligente

Avec l'Hypercortex, l'humanité commencera à devenir intelligente | Intelligence | Scoop.it
Pierre Lévy (voir ici son blog) nous propose un voyage dans notre futur. Rassemblant plusieurs décennies de travail sur un large spectre de sujet, une bibliographie impressionnante, la sphère séman...

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Rescooped by Jean-Michel Livowsky from The Programmable City
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"Re-purposing" data in the Digital Humanities: Data beg to be taken from one context and transferred to another | LSE Blog

"Re-purposing" data in the Digital Humanities: Data beg to be taken from one context and transferred to another | LSE Blog | Intelligence | Scoop.it

While scientists may be well-versed in drawing on existing data sources for new research, humanists are not conditioned to chop up another scholar’s argument, isolate a detail and put it into an unrelated argument. Seth Long critically examines the practice of re-purposing data and finds data in the digital humanities beg to be re-purposed, taken from one context and transferred to another, opening up a wealth of opportunities for research. However, it is still necessary to analyze critically the research from which data are taken and, more importantly, the methods used to obtain them....


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Rescooped by Jean-Michel Livowsky from Networked Learning - MOOCs and more
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University of London MOOC Report | Barney Grainger, U. London


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Manuel León Urrutia's curator insight, March 2, 9:28 AM

Another MOOC report, this time from University of London. Section 6 specially interesting for MOOC making. 

luiy's curator insight, April 15, 3:21 PM

Project Planning a MOOC

 

The course teams involved with our MOOCs included experienced academics with familiarity in developing materials on a learning platform. Nonetheless, for each of them it was their first experience of MOOCs, as it was for the project planning team.

 

 

Delivering a MOOC

 

A range of styles and learning methods were adopted by the four MOOCs, appropriate to the subject matter covered. A MOOC structure of six weeks and 5-10 student effort hours per week of study appeared to be just right for the majority of students (55%). Some considerations for future delivery include:

 

< Well designed announcements at the beginning and end of each week that articulate with the topic coverage, learning activities and assessment methods can be effective at maintaining student interest and motivation.


< Management of forum threads and posts is a critical factor in dealing with massive scale short courses to ensure the majority of students are not affected negatively by the behaviour of a small number of the community, while preserving the openness of the discussion areas.

 

< The Coursera platform tools are significant and comprehensive in terms of plotting overall student activity, allowing evaluation of assessment data, as well as usage statistics on video resources and other learning activities; however, further refinement of these tools to enable both students and teaching staff to understand their progression at an individual level is necessary (and underway).



** Learning Resource Development


 


María Dolores Díaz Noguera's curator insight, May 20, 2:22 AM

University of London MOOC Report .

I Barney Gracinger, U. London

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Votre QI reflète-t-il votre intelligence ? - Francetv info

Votre QI reflète-t-il votre intelligence ? - Francetv info | Intelligence | Scoop.it
Votre QI reflète-t-il votre intelligence ?
Francetv info
Malgré ce manque de consensus sur la définition de l'intelligence, les psychologues ont pourtant essayé de la mesurer, à travers l'évaluation de notre quotient intellectuel (QI).

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Le vertige technologique masque un déficit majeur d'Innovation organisationnelle

Le vertige technologique masque un déficit majeur d'Innovation organisationnelle | Intelligence | Scoop.it
Les objets technologiques mettent parfois des années pour révéler les domaines sur lesquels ils agiront et quelles nouvelles applications ils (...)

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Stéphane NEREAU's curator insight, July 28, 2:56 AM

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Rescooped by Jean-Michel Livowsky from Complex World
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The 1% of scientific publishing

The 1% of scientific publishing | Intelligence | Scoop.it
Only a handful of researchers manage to publish one or more papers per year

Via Claudia Mihai
Jean-Michel Livowsky's insight:

Pourquoi le 1 %...

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Rescooped by Jean-Michel Livowsky from Complex World
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The Network Structure of Jewish Texts

The Network Structure of Jewish Texts | Intelligence | Scoop.it

Sefaria, is an open source database of Jewish texts and recently, Liz Shayne of UC Santa Barbara attempted to extract the relationships between the texts found there—annotations, allusions, and such—and visualize them. Unfortunately, Sefaria is very much a work-in-progress, so conclusions are likely to early to be drawn, but here is a quick visualization that Shayne performed of the complete network of more than 100,000 nodes and 87,000 links


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Jean-Michel Livowsky's insight:

Une structure neuronale dans l'organisation des textes sacrés ?

Voilà qui me réconcilie avec la religion !

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Rescooped by Jean-Michel Livowsky from Intelligence stratégique et économique
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Espionnage économique : la guerre des services secrets

Espionnage économique : la guerre des services secrets | Intelligence | Scoop.it
Infiltrer des sociétés de hautes technologies pour voler des secrets industriels, espionner pour mieux gagner des marchés : la guerre économique est bel et bien lancée ! Le journal de l’Intelligence Economique d’Ali Laïdi a enquêté sur les heures les...

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Rescooped by Jean-Michel Livowsky from Intelligence stratégique et économique
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Lancement du premier club Intelligence Economique dédié à l’innovation

Lancement du premier club Intelligence Economique dédié à l’innovation | Intelligence | Scoop.it
Le préfet d’Ile-de-France a lancé avec le gouvernement le premier club d’Intelligence économique dédié à l’innovation. L’initiative a pour but d’«ancrer une culture de l’intelligence économique au sein des structures innovantes ». La première réunion s’est tenue le jeudi 19 juin.

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This map reveals exactly where Silicon Valley gets its talent | #mexico #TechImmigrants #dataviz

This map reveals exactly where Silicon Valley gets its talent | #mexico #TechImmigrants #dataviz | Intelligence | Scoop.it

Above: Tech Immigrants: A Map of Silicon Valley's Imported Talent

Image Credit: Graphic by Bloomberg Businessweek


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luiy's curator insight, June 8, 2:54 AM

Where does Silicon Valley’s talent come from? This incredibly detailed map tells all.

 

The visualization, made by Bloomberg Businessweek, shows the top 100 sources of “imported talent,” from both U.S. states and foreign countries.

 

According to Bloomberg, “Asian Americans became the majority of the tech workforce in the Valley” in 2010; and one third of Valley startups “are founded by Indian Americans.” In addition, Mexico, Texas, and Arizona rank among the top ten sources of Silicon Valley talent, Bloomberg claims.

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Network Research Centers - Social Network Analysis (SNA)

Network Research Centers - Social Network Analysis (SNA) | Intelligence | Scoop.it

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luiy's curator insight, June 5, 5:34 AM

An open wiki of Network Research Centers, originally curated by John Maloney and Raffaele Vacca. It includes a list and a map of centers. Please use the NRC Submit Form to add or adjust entries in the list.

 

The map can be edited by anyone in Google Maps.  Note: In most cases, the "Year Created" variable (year in which the center was created) is an estimate based on the publication date of the oldest center publication listed in the center website. Please correct it if you have more accurate information on a specific center.


To be added to the site/wiki access lists contact Colabria. This open Website and curated lists are supported by your donations. 

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Nonlinear Dynamics and Chaos - Steven Strogatz, Cornell University - YouTube

Nonlinear Dynamics and Chaos - Steven Strogatz, Cornell University - YouTube | Intelligence | Scoop.it

This course of 25 lectures, filmed at Cornell University in Spring 2014, is intended for newcomers to nonlinear dynamics and chaos. It closely follows Prof. Strogatz's book, "Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry, and Engineering." The mathematical treatment is friendly and informal, but still careful. Analytical methods, concrete examples, and geometric intuition are stressed. The theory is developed systematically, starting with first-order differential equations and their bifurcations, followed by phase plane analysis, limit cycles and their bifurcations, and culminating with the Lorenz equations, chaos, iterated maps, period doubling, renormalization, fractals, and strange attractors. A unique feature of the course is its emphasis on applications. These include airplane wing vibrations, biological rhythms, insect outbreaks, chemical oscillators, chaotic waterwheels, and even a technique for using chaos to send secret messages. In each case, the scientific background is explained at an elementary level and closely integrated with the mathematical theory. The theoretical work is enlivened by frequent use of computer graphics, simulations, and videotaped demonstrations of nonlinear phenomena. The essential prerequisite is single-variable calculus, including curve sketching, Taylor series, and separable differential equations. In a few places, multivariable calculus (partial derivatives, Jacobian matrix, divergence theorem) and linear algebra (eigenvalues and eigenvectors) are used. Fourier analysis is not assumed, and is developed where needed. Introductory physics is used throughout. Other scientific prerequisites would depend on the applications considered, but in all cases, a first course should be adequate preparation

 

Nonlinear Dynamics and Chaos - Steven Strogatz, Cornell University

https://www.youtube.com/playlist?list=PLbN57C5Zdl6j_qJA-pARJnKsmROzPnO9V


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Nonlinear Dynamics and Chaos...

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Jean-Michel Livowsky's curator insight, June 2, 12:23 AM

Nonlinear Dynamics and Chaos

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A Module of Human Peripheral Blood Mononuclear Cell Transcriptional Network Containing Primitive and Differentiation Markers Is Related to Specific Cardiovascular Health Variables

A Module of Human Peripheral Blood Mononuclear Cell Transcriptional Network Containing Primitive and Differentiation Markers Is Related to Specific Cardiovascular Health Variables | Intelligence | Scoop.it

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Claudia Mihai's curator insight, May 3, 2:08 PM

Peripheral blood mononuclear cells (PBMCs), including rare circulating stem and progenitor cells (CSPCs), have important yet poorly understood roles in the maintenance and repair of blood vessels and perfused organs. Our hypothesis was that the identities and functions of CSPCs in cardiovascular health could be ascertained by analyzing the patterns of their co-expressed markers in unselected PBMC samples. Because gene microarrays had failed to detect many stem cell-associated genes, we performed quantitative real-time PCR to measure the expression of 45 primitive and tissue differentiation markers in PBMCs from healthy and hypertensive human subjects. We compared these expression levels to the subjects' demographic and cardiovascular risk factors, including vascular stiffness. The tested marker genes were expressed in all of samples and organized in hierarchical transcriptional network modules, constructed by a bottom-up approach. An index of gene expression in one of these modules (metagene), defined as the average standardized relative copy numbers of 15 pluripotency and cardiovascular differentiation markers, was negatively correlated (all p<0.03) with age (R2 = −0.23), vascular stiffness (R2 = −0.24), and central aortic pressure (R2 = −0.19) and positively correlated with body mass index (R2 = 0.72, in women). The co-expression of three neovascular markers was validated at the single-cell level using mRNA in situhybridization and immunocytochemistry. The overall gene expression in this cardiovascular module was reduced by 72±22% in the patients compared with controls. However, the compactness of both modules was increased in the patients' samples, which was reflected in reduced dispersion of their nodes' degrees of connectivity, suggesting a more primitive character of the patients' CSPCs. In conclusion, our results show that the relationship between CSPCs and vascular function is encoded in modules of the PBMCs transcriptional network. Furthermore, the coordinated gene expression in these modules can be linked to cardiovascular risk factors and subclinical cardiovascular disease; thus, this measure may be useful for their diagnosis and prognosis.

Rescooped by Jean-Michel Livowsky from Coaching de l'Intelligence et de la conscience collective
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Mobiliser l'intelligence collective par la Stigmergie - Conférence gratuite par Lilian Ricaud (IFIC)

Mobiliser l'intelligence collective par la Stigmergie - Conférence gratuite par Lilian Ricaud (IFIC) | Intelligence | Scoop.it

UN OUTIL COLLABORATIF PUISSANT POUR MOBILISER LES LEVIERS DE L'INTELLIGENCE COLLECTIVE DES ÉQUIPES DANS LE MANAGEMENT DES ORGANISATIONS.


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Philippe Olivier Clement's curator insight, April 22, 1:31 AM

Nous vous convions à comprendre et tester en direct une expérience de stigmergie.

Notre invité, Lilian RICAUD nous fera part de ces expériences vécues, sur lesquelles vous pourrez réagir, poser vos questions et nous faire part de vos propres expériences.

Organisateur : +Philippe-Olivier Clément 
Invité : +Lilian Ricaud 
Modérateurs : +Jean-Claude Plourde , +Pascal Bernardon 

Vous pourrez suivre cette conférence en ligne sur Google+ ou Youtube.
Pour plus de détail, nous vous invitons à consulter les publications d'aide relatives à cet évènement.

A bientôt

Rescooped by Jean-Michel Livowsky from Intelligence stratégique et économique
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L’importance de la veille dans une stratégie d’e-réputation

L’importance de la veille dans une stratégie d’e-réputation | Intelligence | Scoop.it
L’e-réputation est un sujet qui commence à être connu même s’il subsiste encore beaucoup d’ombres. Un amalgame de communication, de web, de likes, de tweet

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Rescooped by Jean-Michel Livowsky from e-marketing, curation, intelligence collective, SEM
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L’importance de la veille dans une stratégie d’...

L’importance de la veille dans une stratégie d’... | Intelligence | Scoop.it
L’e-réputation est un sujet qui commence à être connu même s’il subsiste encore beaucoup d’ombres. Un amalgame de communication, de web, de likes, de tweets, et puis des clients. Mais il y a encore un sujet qui passe à la trappe : la veille.

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