Common network representations
Dependency data from different platforms are represented in shared network formats, so cascade methods can be applied consistently.
GCRI · Zanista pergalan û modelkirin
Network science and contagion is a method this platform stewards for the network. It provides common tools for representing dependencies and simulating spread, used across infrastructure, finance, supply chains, health and information.
Network science and contagion study how the structure of connections among entities shapes the spread of failures, information and disease. It provides tools to analyse interdependent infrastructure, supply chains and financial pergalan. In methods and modelling, risk management and xetera pergalî and research and evidence, network science identifies critical nodes and pathways through which shocks propagate across sectors. It informs targeted protection and diversification to limit cascades. The canonical description is on STEM Commons.
Dependency data from different platforms are represented in shared network formats, so cascade methods can be applied consistently.
Threshold, load-redistribution and epidemic-type models are compared on the same networks to show how model choice changes results.
Interdependent networks are analysed together to identify cross-layer cascades that a single-layer analysis would miss entirely.
Qebareya nifûsê, ava lehiyê û ronahiyên şevê li ser Amerîkaya Bakur, ji NASA GIBS. Her qat dîroka xwe digire.
Nexşeya înteraktîf JavaScript hewce dike; lîsteya qatan û çavkanî li jêr in.
Qat 3
Metirsî û rûbirûbûn, ji bo vê rûpelê
Klavye, dema ku nexşe di fokusê de ye
Ctrl an ⌘ bigire û bizivirîne da ku nêzîk bikî
Ya herî dawî ya heyî
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth
Wêneyên herî nû yên NASA tê barkirin.
Bikişîne da ku bilivîne. Ctrl an ⌘ û zivirandin, pincandin an bişkojkan ji bo nêzîkkirinê; ji bo nirxên di bin nîşanderê de li ser bisekine; vegerandin vedigere herêmê.
Metirsî û rûbirûbûn, li ser Amerîkaya Bakur hatiye çarçovekirin.Berhemên peyk û modelê wekî NASA diweşîne, her yek bi dîroka xwe. Nîşander in, ne nirxandinên tu cihî ne.
Qat û dîrok
Datasets and records used by network science and contagion on this platform, with the role each plays and the label its values carry. Sources are listed in the source register.
| Dane | Rol | Nîşan |
|---|---|---|
| Benchmark networks | Method testing | ÇAVDÊRÎKIRÎ |
| Platform dependency data | Applications | DECLARED |
| Event records | Erêkirin | REPORTED |
Assembled from the Nexus Standards area profile Standardên metirsiya tevhev û zincîrî: the hazards it names, the pergalan and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full System Builder.
Metirsî
Pergal û girêdan
Kontrol
NS-0 Destûr û prensîbNS-3 UNIyên tomara xetereyê (rêzimanî, nexşeya veguhastina ji pergala kevin, desthilata veqetandinê)NS-9 UNI yên çarçoveyî (belavkirin, mînak, mînakên bernameyê)NS-11 Piştrastkirin û çavdêrî (delîl, erêkirin, çavdêriya lihevhatina zero-trust)NRS-H61 Malbata metirsiyê: Têkçûna zincîrî (NHS-1 sys.cascade)NRS-H62 Malbata metirsiyê: Bûyerên tevhev û pir-metirsî (NHS-1 sys.compound)NRS-H60 Malbata metirsiyê: Qutbûna zincîra dabînkirinê û herikînan (NHS-1 sys.supply-chain)NRS-H94 Malbata metirsiyê: Bûyerên sîber ên pergalî (NHS-1 cyber.systemic-cyber)NRS-H107 Malbata metirsiyê: Kombûn û yekrengiya binesaziya dîjîtal (NHS-1 tech.digital-concentration)NRS-H7 Malbata metirsiyê: Anomaliyên gera mezin (NHS-1 atmo.climate-mode)Çavdêrî
Erdnîgariya mînakê
Models are checked by reproducing observed cascades and outbreaks. Robustness of results to missing or uncertain links is tested.
| Kontrol bikin | How it is done |
|---|---|
| Missing link sensitivity | Results are tested under perturbed network structure |
| Model comparison | Several contagion models are applied before conclusions |
| Event validation | Simulated cascades are compared with documented events |
Network data are often incomplete or confidential. Static network models may miss adaptive behaviour during cascades.
Model, texmînên wî, daneyên wî û nediyariya wî, bi şeweyê ku zanyar an endezyar kontrol bike. Avahî rêbazên weşandî dişopînin. Nirxên hatine xêzkirin nimûneyî ne, ne encam in.
The model structure used for network science methods, the assumptions it makes and how each is tested.
Ri = f(Hi, Ei, Vi, Ci)metirsî, rûbirûbûn, lawazî û kapasîteya serederiyêEAL = ∑k pk · Lkli ser bûyerên k bi îhtîmala salane pkxt+1 = A xt + B ut + εtA carries the couplings, u the shock, ε the error| Texmîn | Çima tê çêkirin | Çawa tê ceribandin |
|---|---|---|
| Metirsî û rûbirûbûn di nav bûyerekê de serbixwe ne | Entegrala windahiyê ji hesabkirinê re maqûl dihêle | Bi lihevhatineke copula li ser tomarên hevbeş re bidin ber hev |
| Girêdan li nêzî xala xebatê xêzik in | Dihêle şok di A de belav bibin | Ji derveyî rêza xêzik tevlihev bike û bide ber hev |
| Xêzên lawaziyê di navbera cihan de têne veguhastin | Xêzikên herêmî kêm tên dîtin | Li hember windahiyên çavdêrîkirî erê bike li cihê ku hene |
Process explorer · Process
8 gav·4 qonax
Pêvajo
An initial hazard can trigger later risks and events; this illustration draws one cascade across pergalan such as energy, water, ICT, health and transport.
Outline of an external standard or method, from its public sources. It describes what the framework says, not a record of any run. It does not show that Nexus or any partner performs, certifies or approves a step. A gate is a step of the method, never a Nexus approval. The dependencies are examples. A dependency survey for the place sets them.
Pergal Science and Modelling stewards network science and contagion for the Consortium and reviews how it is applied across platforms.
rêzeya Pergalên Stratejîk is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
Tu carî daneyên şexsî, hûrgiliyên binesaza hesas an tiştekî ku mafê we yê parvekirinê tune ne neşînin. Beşdarî berî bikaranînê tê nirxandin; şandina wê nivîskarî an mafên edîtorî nade û sponsorî tu carî encamekê nakire.
Agahî û pirs îro vekirî ne. Pirsek referansekê distîne û gava piştî wê dide nasîn; serlêdan, drav, veqetandina hesabkirinê û tomarkirin tenê dema ku tîm, mercên wê û kapasîteya vekolînê hebin vedibin.
Nexşe, dane û jimarên vê malperê ji bo çarçoveyê û agahiyên giştî têne nîşandan. Ew ne şîret, ne pêşbînî û ne hişyarî ne; sînorên agahiyê di Daxuyaniyên Berpirsiyariyê û Daxuyaniyên Daneyê de hatine diyarkirin.
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