@prefix this: <https://w3id.org/sciencelive/np/RAmEYMywIv9uDQPHuvPcPLEONpl7Et4M9hikmvDrRdVG0> .
@prefix sub: <https://w3id.org/sciencelive/np/RAmEYMywIv9uDQPHuvPcPLEONpl7Et4M9hikmvDrRdVG0/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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sub:assertion {
  sub:delouis-2022-lss-replication-outcome a <https://w3id.org/sciencelive/o/terms/FORRT-Replication-Outcome>;
    <http://schema.org/endDate> "2026-04-22"^^xsd:date;
    <http://www.w3.org/2000/01/rdf-schema#label> "Scattering synthesis on cosmological LSS map confirms generalisation of Delouis 2022";
    <https://w3id.org/sciencelive/o/terms/hasConclusionDescription> "The replication supports the generalisation claim of Delouis et al. 2022 — that the scattering-transform framework on the HEALPix sphere applies beyond Planck dust polarisation to other astrophysical processes. Using the authors' own FOSCAT software, scattering synthesis from random noise produces a new cosmological large-scale-structure map whose multi-scale statistics match those of the target input. The framework generalises, at least to one additional astrophysical case.";
    <https://w3id.org/sciencelive/o/terms/hasConfidenceLevel> <https://w3id.org/sciencelive/o/terms/HighConfidence>;
    <https://w3id.org/sciencelive/o/terms/hasEvidenceDescription> """Scattering-transform synthesis applied to a cosmological LSS map (LSS_map_nside128.npy from FOSCAT_DEMO, downgraded to nside=32) starting from random noise, 300 L-BFGS iterations, NORIENT=4, KERNELSZ=3, on CPU (143 seconds, Apple M1 Pro):
                                                                                                                                            
- Power spectrum ratio (synthesised / target, mean across multipoles): 0.987 — close to the ideal 1.0
- Scattering coefficient improvement: 99.55% — synthesis converges to near-target scattering statistics                                       
- Pixel-level correlation (synthesised vs target): −0.0038 — close to zero, as expected when the synthesis produces a new realisation rather than copying                                                                                                                                  
- Distributional match: target mean ≈ 0, std = 0.739; synthesised mean ≈ 0, std = 0.746 — distributions match to within rounding
                                                                                                                                             
Full results JSON and figure archived at Zenodo 10.5281/zenodo.19685025. 
Github repository: https://github.com/annefou/fiesta-scattering-astro""";
    <https://w3id.org/sciencelive/o/terms/hasLimitationsDescription> """Three caveats limit the strength of the conclusion:           
                                                                                
1. Single realisation. The synthesis was run once with a fixed random seed; no variance estimate across multiple realisations is available.   
2. Lower resolution than the paper. This study runs at nside=32 (12,288 pixels) for CPU compatibility; the original paper uses nside=256.     
3. Demonstration-grade input data. The cosmological LSS map is a single demo artefact distributed in the FOSCAT_DEMO repository, not a peer-reviewed scientific dataset, and it is not the data the original paper is about (Planck 353 GHz dust polarisation). A future study could test the framework on multiple peer-reviewed astrophysical datasets at the paper's native resolution to strengthen the generalisation evidence.  """;
    <https://w3id.org/sciencelive/o/terms/hasOutcomeRepository> <https://doi.org/10.5281/zenodo.19707889>;
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}

sub:provenance {
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sub:pubinfo {
  <https://orcid.org/0000-0002-1784-2920> <http://xmlns.com/foaf/0.1/name> "Anne Fouilloux" .
  
  this: dc:created "2026-04-26T14:59:04.604Z"^^xsd:dateTime;
    dc:creator <https://orcid.org/0000-0002-1784-2920>;
    dc:license <https://creativecommons.org/licenses/by/4.0/>;
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    <http://www.w3.org/2000/01/rdf-schema#label> "NP created using Declaring a replication study outcome according to FORRT";
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