测试并验证模型
Every model version is backtested, scored out of sample, compared with established indices and documented in a model card before use.
- Model version submitted instant
- Backtest 6 hours
- Out-of-sample scores 2 hours
- Benchmark 2 hours
- Model card 1 day
- 审批关口 10 天
- Promote to production instant
测试并验证模型
Every model version is backtested, scored out of sample, compared with established indices and documented in a model card before use.
测试并验证模型
End to end on the longest path: about 11.3 d of proposed target service levels. Gates wait for the people named; bars with a fading end have no fixed length.
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Model version submittedSubmit · You · instantCode, data and seed pinned · Intended use declaredModel LabPostgreSQL ledger (row-level security)
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BacktestTest · Verification engine · 6 hoursRolling-origin backtest · Hindcasts over the archiveVerification engineMonte Carlo engine
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Out-of-sample scoresTest · Verification engine · 2 hoursBrier and CRPS · Reliability and ROC areaVerification engine
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BenchmarkTest · Verification engine · 2 hoursAgainst established indices and naive baselinesVerification engineindicator standard
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Model cardDocument · You · 1 dayIntended use and limits · Data, method and scoresReplication packs
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审批关口 审批Approve · Method stewards · 10 daysDisposition recordedPostgreSQL 账本(行级安全)
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Promote to productionApprove · NXS-GRX Platform · instantVersion pinned in production · Rollback keptModel LabPublic cut API
| 产出物 | 作业 | 执行方 | 阶段 |
|---|---|---|---|
| Version record | Model version submitted | 您 | 提交 |
| Backtest report | Backtest | Verification engine | 测试 |
| Scorecard | Out-of-sample scores | Verification engine | 测试 |
| Benchmark table | Benchmark | Verification engine | 测试 |
| Model card | Model card | 您 | Document |
| Approval record | 审批关口 | Method stewards | Approve |
| Release tag | Promote to production | NXS-GRX Platform | Approve |
Solutions that use this journey
7 components
Each job names the component it runs on; open a job on the canvas for its steps, checks and artefacts.
Part of Models of the Index: Scenario pathways, stress tests, tail and exceedance analytics, coupling contagion and forecasting on the open method library, with tests and model cards.
Related journeys
运行情景或压力测试
Configure a pathway or a structured shock, run it across entities and draws in Model Lab, propagate it through the coupling network and read the tails. 7 jobs · 1 gate.
Open the run
Models of the Index · Model设计参数化触发条件
Study an index trigger for pre-arranged finance: event history, basis risk and calibration, with review before any use. Information for design, not advice. 6 jobs · 1 gate · 5 checks.
Open the run
NXS-GRX Indices · Test复现任意数值
Fetch the replication pack for any published value and recompute it from the same inputs, kernel and seed; the digest must match. 5 jobs · 4 checks.
Open the run
状态
The Global Risks Index 的方法、结构和定义为预备性工作草案(2026),供审阅和评论,不供实施。在从受治理的证据截取中发布版本之前,不会出现任何数值;届时数值将附有区间、类别、来源及其更正途径。模拟器以您选择的数字运行已发布的方法,绝不显示 NXS-GRX 数值。
NXS-GRX 不是什么
NXS-GRX 是研究和风险分析信息。它不是信用评级或 ESG 评级,不使用任何评级尺度;它不是金融工具的基准,不是官方统计,不是紧急警报或官方分类,也不是建议。不得用于评估自然人。风险等级是已发布尺度上的区间,绝不是对国家或个人的排名。
机构与来源
The Nexus Consortium is stewarded by three independent not-for-profit institutions: The Global Centre for Risk and Innovation (GCRI), through GCRI US in Washington, DC and GCRI Canada in Ontario, with GCRI Canada as Lead Institution, Consortium Secretariat and lead contracting organisation; The Global Risks Forum (GRF); and The Global Risks Alliance (GRA). Technology, infrastructure and service providers work with the Consortium at arm’s length under written agreements, like every other external party in the public-private-planet model, and hold no role in its stewardship.
每个数值均附有其来源的署名,这些来源保留各自的许可。外部名称仅为互操作性而引用。Nexus 撰写的文本拟在发布时采用 CC BY 4.0。
Avis en français
La méthodologie et les définitions du NXS-GRX sont un projet de travail préparatoire (2026). Le NXS-GRX est une information de recherche et d’analyse des risques : ni notation, ni indice de référence financier, ni statistique officielle, ni alerte, ni conseil. Les classes de risque sont des bandes sur une échelle publiée, non des classements.