Showing posts with label bursts. Show all posts
Showing posts with label bursts. Show all posts

Thursday, April 7, 2022

Hyperdisciplinary


After nearly a decade, an interdisciplinary collaboration to model a 3D spider web leads to many surprising results
Aug 2021, phys.org

Rare hyperdisciplinary amalgam of art, music, science, and spider webs.

This article is as long as it is crazy; I tried to cut a few pieces here. It's written by a Anya Ventura for MIT, and is a massive case study on how to do interdisciplinary work, very inspiring:

First, the arachnophilic artist Tomàs Saraceno came to MIT in 2012 as the inaugural Center for Art, Science, & Technology (CAST) visiting artist; then materials scientist Markus Buehler, the McAfee Professor of Engineering at MIT, had been studying orb webs for years, and had long been interested in the intersection of materials and music.

Using an approach to mathematics called category theory, he showed how natural hierarchical materials like spider silk exhibit properties comparable to various forms of music, in terms of their hierarchical structure and function. Soon, a collaboration was born. A computer model and simulation of the data generated by Saraceno's spider web scans could not only accurately visualize the web but replicate its internal structure, gaining precise information about every single silk thread.

Over the years, Buehler and Saraceno refined the three-dimensional models, using increasingly advanced imaging and simulation techniques. In the near decade that followed, with the support of CAST, their model of the spiderweb has led to an enormous array of undertakings, both together and with their respective labs: a digital web archive, a virtual reality simulation, live musical performances and "cosmic jam" sessions with spiders and their webs, multiple peer-reviewed scientific research papers on the spiderweb's structural and mechanical properties, sonifications of spider silk proteins, 3D-printed spider silk, and an app for citizen arachnophiles that launched the 2019 Venice Biennale, among other projects. 

Arachnophilia Research Laboratory

"Tomàs always had this dream of a collective instrument based on the spiderweb," says Ziporyn, composer, clarinetist and faculty director of CAST. "It was a kind of cosmic drum circle, as he conceived it."

Saraceno's studio was a freewheeling ensemble of designers, architects, anthropologists, biologists, engineers, art historians, curators, and musicians. "It had a crazy sort of Andy Warhol Factory meets Eastern European startup vibe," says Ziporyn.

via MIT: Isabelle Su et al, In situ three-dimensional spider web construction and mechanics, Proceedings of the National Academy of Sciences (2021). DOI: 10.1073/pnas.2101296118

Image credit: Hybrid solitary social semi-social musical instrument Apus, built by one Nephila clavipes-six days- a small commuity of Stegudyphus duffori-four months-and six cyrtophora citricola sipiderlings-two weeks, Tomas Saraceno, 2015 [link]


What was really the secret behind Van Gogh's success?
Sep 2021, phys.org

This is about "hot streaks" - they found that hot streaks are a pendulum of exploration and exploitation, which should be familiar in other network effects, like foraging.

Too much exploitation of what you've already learned, and your stuff gets old. Yet, too much exploration into new and interesting things, and you're wasting time.

They give the example of Vincent Can Gogh studying diverse styles of art or diverse subject matter, and then switching to a zoomed-in area where they take what they've learned and execute something novel. Before 1888, he was all over the place, but between then and 1890, he did Starry Night and the Sunflowers, some of his most famous work.

They used 800,000 images from museums and galleries covering 2,128 artists; 79,000 films on IMDB by 4,337 directors. 20,040 scientists' career histories using Web of Science and Google Scholar. Hot streaks were measured using auction price, IMDB ratings and academic paper citations. Once they identified hot streaks, they looked 4 years before and after to see what happened around that time, what were their patterns of exploration and exploitation. They found that hot streaks last about 5 years. 

via Northwestern University: Understanding the onset of hot streaks across artistic, cultural, and scientific careers, Nature Communications (2021). DOI: 10.1038/s41467-021-25477-8

 Siggraph light painting by Serpiva et al 2021

DronePaint - A human-swarm interaction system for environment exploration and artistic painting
Sep 2021, phys.org

A more intuitive approach for controlling robot swarms. Just what we asked for. 

Also, the image is long-exposure light painting. 

They made a system for human-swarm interactions that allows users to directly control the movements of a team of drones in complex environments. It recognizes human gestures and adapts the drones' trajectories accordingly. It could simplify the operation of drones on behalf of both expert and non-expert users.

It's that simple -- they've designed a way to allow you to control swarms of drones with pre-programmed hand gestures, or any kind of gestures, and eventually just the thoughts of gestures.

"In the future we are also planning to devise systems to read imagined hand gestures from posterior parietal cortex (PPC), using BMI,"
-Dzmitry Tsetserukou, Professor, Ph.D., Head of Intelligent Space Robotics Laboratory at Skoltech

via Skolkovo Institute of Science and Technology (Skoltech) in Russia Valerii Serpiva, DronePaint: Swarm light painting with DNN-based gesture recognition (2021). arXiv:2107.11288v1 [cs.RO], arxiv.org/abs/2107.11288


Genesis Uses A Record 3,281 Drones To Create A Magical Light Show In China, 2021

Genesis company deployed 3281 flashing drones in the night sky, breaking the previous world record.


Banksy's Love is in the Bin sells for record £16m
Oct 2021, BBC News

We already know about how Banksy programmed his art to self-destruct at the sound of the auction hammer, but I haven't heard it be described like this until now:

"Unexpected piece of performance art"

Also, "Our work was inspired by several previously developed systems that integrated drones in art, like DroneGraffiti and BitDrones," Serpiva said.


People listen to streamed music during specific blocks of time
Nov 2021, phys.org

  • People who listen to streamed music on online services tend to do so during the same specific blocks of time each day—though there is more variation on the weekends
  • Volume lower first thing in the morning, and then turned it up as their morning went on
  • Tempo of the music people were listening to was slow during the day but then picked up at night, eventually morphing into music fit for dancing

via Aarhus University and The Royal Academy of Music Aarhus/Aalborg: Ole Adrian Heggli et al, Diurnal fluctuations in musical preference, Royal Society Open Science (2021). DOI: 10.1098/rsos.210885

Dali Key On The Plate

Sleep technique improves creative thinking
Dec 2021, phys.org

The key on the plate trick works.

Also, this in-between brain-state, typically called hypnopompic or hypnogogic, is referred to here as N1, and as opposed to REM or deep sleep.

via Sorbonne Université: Célia Lacaux et al, Sleep onset is a creative sweet spot, Science Advances (2021). DOI: 10.1126/sciadv.abj5866


Neural network can distinguish the characteristic brush strokes of individual painters
Dec 2021, phys.org

Could help authorities identify forgeries better. 

It's different because it looks at the topography of the brushstrokes, the 3-D part of the painting., which should make sense, because adding another dimension multiplies the data. This network is 95% accurate using only a brushstroke the size of a single bristle. 

via the Materials for Opto/Electronics Research and Education at Case Western Reserve University: F. Ji et al, Discerning the painter's hand: machine learning on surface topography, Heritage Science (2021). DOI: 10.1186/s40494-021-00618-w


Analysis of Japanese and English folk songs finds cross-cultural regularities in music evolution
Feb 2022, phys.org

They first defined folk songs as those that have been transmitted orally from one generation to the next. Then they tracked insertions and deletions to songs over time:
  • Insertions or deletions were more common than substitutions
  • The impact on the songs from such insertions and deletions was more profound in the Japanese songs
  • Changes to notes that played a major role in the folk songs over time were less likely to occur than those that played a more minor role, regardless of language

via Faculty of Environment and Information Studies, Keio University, Japan; School of Anthropology and Museum Ethnography, University of Oxford; Department of Musicology, Tokyo University of the Arts;  Centre for Ecology & Conservation, University of Exeter; School of Psychology, University of Auckland, New Zealand: Patrick E. Savage et al, Sequence alignment of folk song melodies reveals cross-cultural regularities of musical evolution, Current Biology (2022). DOI: 10.1016/j.cub.2022.01.039

Sunday, May 5, 2013

Recombinant Memetics and Narrative Networks


Structural Forces
Macdonald Educational (A Unit For Teachers), published for the Schools Council by MacDonald Educational Ltd., London, 1972-1973

Recombinant Memetics
This one's quite speculative, and it's technically speaking still in the proto-science phase. But it'll only be a matter of time before scientists get a better handle on the human noosphere (the collective body of all human information) and how the proliferation of information within it impacts upon virtually all aspects of human life.

Similar to recombinant DNA (in which different genetic sequences are brought together to create something new), recombinant memetics is the study of how memes (ideas that spread from person to person) can be adjusted and merged with other memes and memeplexes (a cohesive collection of memes, like a religion) for beneficial or ‘socially therapeutic' purposes (such as combating the spread of radical and violent ideologies). This is similar to the idea of 'memetic engineering' — which philosopher Daniel Dennett suggested could be used to maintain cultural health. Or what DARPA is currently doing via their ‘narrative control' program.
11 Emerging Scientific Fields That Everyone Should Know About, George Dvorsky 27 Feb2013


The Narrative of a Japanese by Joseph Heco [link]


How to Tell a Story
Mark Twain once tried to distinguish between the storyteller’s art and tales that a machine could generate:
To string incongruities and absurdities together in a wandering and sometimes purposeless way, and seem innocently unaware that they are absurdities, is the basis of the American art, if my position is correct. Another feature is the slurring of the point. A third is the dropping of a studied remark apparently without knowing it, as if one were thinking aloud. The fourth and last is the pause.

The pause is an exceedingly important feature in any kind of story, and a frequently recurring feature, too. It is a dainty thing, and delicate, and also uncertain and treacherous; for it must be exactly the right length--no more and no less--or it fails of its purpose and makes trouble. If the pause is too short the impressive point is passed, and [and if too long] the audience have had time to divine that a surprise is intended--and then you can't surprise them, of course.
Mark Twain [source]

tadar via Urban Ticks 11.05.2009

Darpa Wants to Master the Science of Propaganda
[clipped]

Darpa is asking scientists to “take narratives and make them quantitatively analyzable in a rigorous, transparent and repeatable fashion.”

The program is called “Narrative Networks.” By understanding how stories have shaped your mind, the Pentagon hopes to sniff out who has fallen prey to dangerous ideas, a neuroscience researcher involved in the project tells Danger Room.

In the first 18-month phase of the program, the Pentagon wants researchers to study how stories infiltrate social networks and alter our brain circuits.

Once scientists have perfected the science of how stories affect our neurochemistry, they will develop tools to “detect narrative influence.” These tools will enable “prevention of negative behavioral outcomes … and generation of positive behavioral outcomes, such as building trust.”

When the project enters into a second 18-month phase, it’ll use the research gathered to build “optimized prototype technologies in the form of documents, software, hardware and devices”.

In fact, it’s calling for devices that detect the influence of stories in unseen ways. “Efforts that rely solely on standoff/non-invasive/non-detectable sensors are highly encouraged,” [beyond micro-facial feature analysis, dilation of blood vessels/ pupils].


NARRATIVE NETWORKS Oct 07, 2011
Request for proposal, clipped [source]

 DARPA is soliciting innovative research proposals in the areas of (1) quantitative analysis of narratives, (2) understanding the effects narratives have on human psychology and its affiliated neurobiology, and (3) modeling, simulating, and sensing-especially in stand-off modalities.

Motivation: Narratives exert a powerful influence on human thoughts and behavior. They consolidate memory, shape emotions, cue heuristics and biases in judgment, influence in-group/out-group distinctions, and may affect the fundamental contents of personal identity.
Story Diagram

One: Narrative Analysis. Ascertaining exactly what function stories enact, and by what mechanisms they do so… […] This goal serves to ascertain who is telling stories to whom and for what purpose, and to discover latent indicators of the spread and influence of narrative tropes in structures such as social networks, traditional and social media, and in conversation.

1. Develop new, and extend existing narrative theories. …nature of stories, including, but not limited to, a list of necessary and sufficient conditions that help distinguish narrative stimuli from other stimuli. …kinematics and dynamics of story ontology. …structure and function of narratives, including identifying and discussing aspects of narratives that are universal versus aspects that vary considerably across cultural or social contexts.

2. …role of narrative in security contexts. …role and extent stories play in influencing political violence. …political radicalization and how they can influence a person or group’s choice of means (such as indiscriminant violence) to achieve political ends. …influence bystanders-to-conflict in terms of shaping their attitudes and perceptions. …shape the process of negotiation, especially between key stakeholders. …relationship between narratives and the mechanisms that generate and reinforce psychiatric or clinical conditions. …impact of narratives on attitudes and perceptions.

3. …quantitatively analyzable in a rigorous, transparent and repeatable fashion. …establish a framework for the scientific study of the psychological and neurobiological impact of stories on people. …how stories propagate in a system so as to influence behavior. Identify temporal and spatial dimensions of narratives in different media...

Narrative Power: Encounters, Celebrations, Struggles - edited by L. Timmel Duchamp, with an introduction by Eileen Gunn, 2010
Two: Narrative Neurobiology. Since the brain is the proximate cause of our actions, stories have a direct impact on the neurobiological processes of both the senders and receivers of narratives. …explanations of salient narrative psychological phenomena such as engagement, transportation, immersion, and synchronization are highly encouraged.


1. Assay narrative effects on our basic neurochemistry. Determine if narratives uniquely modulate human hormone or neurotransmitter production. […] Determine the manner in which narrative effects change during ontogeny and/or due to socio-economic and other environmental conditions.

2. …impact on the neurobiology of memory, learning and identity. […] Explore the differential influence of stories on neurotransmitter systems as compared to other environmental stimuli. Determine how stories impact the neurobiology of important identity-related judgments, such as whom you consider to be a member of your in-group and whom you count as an out-group member.

3. …neurobiology of emotions. Identify impacted neurobiological emotions…

4. …neurobiology of moral judgment. …neural mechanism or mechanisms by which narratives affect judgments about moral guilt and innocence, or the moral permissibility and/or impermissibility of certain actions.

5. …brain mechanisms related to social cognition. Determine how narratives differentially affect the neurobiological basis of theory of mind and judgments of the mental states of others. Identify and explore how stories influence neural mechanisms responsible for the generation and sustainment of collective action or group behavior. [MTD] Determine if and by what mechanisms stories uniquely synchronize or sustain the neural mechanisms of shared attention, collaboration, joint problem-solving and trust.

Narrative Structure [of Sucker Punch, the movie]
Three: Narrative Models, Simulations and Sensors. …understand others, detect narrative influence, and predict responses. …enable prevention of negative behavioral outcomes… …predict and quantify how and why our behavior changes as a result of narrative interaction.

1. …modeling and simulating influence. Baseline against existing models of the influence process to determine the best extant methods of understanding and forecasting influence. …consideration of narrative-driven mental and neurobiological states and the variables which influence them. …capturing the transition from changes in beliefs, desires and attitudes to actions. [MTD]

2. […] Identify whether existing influence models can be improved by the addition of a narrative “layer.” …ontology and transition states of this layer. Validate and verify the model in at least one potentially iterable testable domain (such as forecasting the success of advertising, movies, public relations campaigns or reception of disaster relief interventions).

3. Develop non-standard and novel sensor suites keyed to the variables and processes identified in new or improved influence models. Baseline against current technologies for detecting and measuring indirect indicators of neural activity (such as capillary dilation, galvanic skin response, eye pupil dilation, gaze direction, micro-facial feature analysis, etc.), and against current standoff technologies for more direct detection and measurement (such as sensing neurobiological compounds). […]

[…]

Racter: Writing Robots
Meme Wars


Saturday, December 8, 2012

On Free Will and Risk



“We act and interpret the acts of others, on the basic assumption that there is personal freedom; and all our moral judgments depend upon our conviction that free choice is possible. (But it should at the same time be noted that we are able to choose effectively only because, like the artist, we act within a tradition which limits the range and probability of the choices available to us in a particular situation. Were all models of behavior equally possible and probably we should be paralyzed in trembling indecision.) Every achievement, every true discovery, risks failure. For a great work or art or a great scientific discovery is great precisely because the creator has dared to choose beyond the limits and bounds of the normal, the accepted, and the obvious.”

[And in so doing, they free the rest of us.]

Leonard B. Meyer, “Forgery and the Anthropology of Art”, pp 77-92
in The Forger’s Art: Forgery and the Philosophy of Art
Denis Dutton, ed.
Berkeley, 1983

On Free Will and the Power Law
We all have free will...yet no matter what we did, we unconsciously followed the same law - a power law. (p105)

-A.L. Barabasi, 2010
Bursts