[ {
  "@graph" : [ {
    "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY",
    "@type" : [ "http://www.nanopub.org/nschema#Nanopublication" ],
    "http://www.nanopub.org/nschema#hasAssertion" : [ {
      "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/assertion"
    } ],
    "http://www.nanopub.org/nschema#hasProvenance" : [ {
      "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/provenance"
    } ],
    "http://www.nanopub.org/nschema#hasPublicationInfo" : [ {
      "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/pubinfo"
    } ]
  } ],
  "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/Head"
}, {
  "@graph" : [ {
    "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/dggs-benchmark-outcome-2026",
    "@type" : [ "https://w3id.org/sciencelive/o/terms/FORRT-Replication-Outcome" ],
    "http://schema.org/endDate" : [ {
      "@type" : "http://www.w3.org/2001/XMLSchema#date",
      "@value" : "2026-03-07"
    } ],
    "http://www.w3.org/2000/01/rdf-schema#label" : [ {
      "@value" : "DGGS Benchmark Outcome: Claim Partially Supported"
    } ],
    "https://w3id.org/sciencelive/o/terms/hasConclusionDescription" : [ {
      "@value" : "The claim \"Effect of DGGS Indexing on Associating Vector and Raster \r\nGeospatial Data\" is PARTIALLY SUPPORTED.\r\n\r\nVECTOR BENCHMARK (Figure 6): VALIDATED\r\nDGGS provides orders of magnitude performance improvement over traditional \r\nvector overlay operations. At 20 layers, DGGS was 16,000x faster than \r\nvector methods.\r\n\r\nRASTER BENCHMARK (Figure 7): PARTIALLY SUPPORTED\r\nThe paper's claim of \"roughly equivalent performance\" holds when comparing \r\nclassification time with pre-indexed DGGS data. However, on-the-fly H3 \r\nindexing adds significant overhead. The replication using xdggs shows \r\nvectorized indexing reduces this overhead by ~100x."
    } ],
    "https://w3id.org/sciencelive/o/terms/hasConfidenceLevel" : [ {
      "@id" : "https://w3id.org/sciencelive/o/terms/HighConfidence"
    } ],
    "https://w3id.org/sciencelive/o/terms/hasEvidenceDescription" : [ {
      "@value" : "VECTOR BENCHMARK RESULTS:\r\n| Layers | DGGS     | Vector   | Speedup  |\r\n|--------|----------|----------|----------|\r\n| 5      | 0.01s    | 0.4s     | 40x      |\r\n| 10     | 0.015s   | 10s      | 670x     |\r\n| 20     | 0.03s    | 400s     | 16,000x  |\r\n\r\nDGGS shows near-linear scaling; vector shows super-linear growth.\r\nThis validates the paper's Figure 6.\r\n\r\nRASTER BENCHMARK RESULTS (100 layers):\r\n| Method              | Time    |\r\n|---------------------|---------|\r\n| Raster (NumPy)      | 0.02s   |\r\n| DGGS Pre-indexed    | 0.01s   | ← Paper's scenario: VALIDATED\r\n| DGGS + H3 loop      | 5.0s    | ← Includes slow indexing\r\n| DGGS + xdggs        | 0.05s   | ← Replication: 100x faster indexing\r\n\r\nThe pre-indexed scenario matches the paper's methodology and validates \r\nthe claim of equivalent performance."
    } ],
    "https://w3id.org/sciencelive/o/terms/hasLimitationsDescription" : [ {
      "@value" : "- Vector benchmark tested up to 100 layers (paper used 500)\r\n- Raster pre-indexed scenario simulates but doesn't exactly replicate \r\n  Apache Parquet + Polars implementation\r\n- Missing random misalignment (\"jittering\") from original methodology\r\n- Single hardware configuration tested"
    } ],
    "https://w3id.org/sciencelive/o/terms/hasOutcomeRepository" : [ {
      "@id" : "https://doi.org/10.5281/zenodo.18904498"
    } ],
    "https://w3id.org/sciencelive/o/terms/hasValidationStatus" : [ {
      "@id" : "https://w3id.org/sciencelive/o/terms/PartiallySupported"
    } ],
    "https://w3id.org/sciencelive/o/terms/isOutcomeOf" : [ {
      "@id" : "https://w3id.org/np/RADCSRkRrlaOzRZ-lkPh1dnvthkhqFz55eGr1wtpW03vk"
    } ]
  } ],
  "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/assertion"
}, {
  "@graph" : [ {
    "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/assertion",
    "http://www.w3.org/ns/prov#wasAttributedTo" : [ {
      "@id" : "https://orcid.org/0000-0002-1784-2920"
    } ]
  } ],
  "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/provenance"
}, {
  "@graph" : [ {
    "@id" : "https://orcid.org/0000-0002-1784-2920",
    "http://xmlns.com/foaf/0.1/name" : [ {
      "@value" : "Anne Fouilloux"
    } ]
  }, {
    "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY",
    "http://purl.org/dc/terms/created" : [ {
      "@type" : "http://www.w3.org/2001/XMLSchema#dateTime",
      "@value" : "2026-03-13T14:34:23.913Z"
    } ],
    "http://purl.org/dc/terms/creator" : [ {
      "@id" : "https://orcid.org/0000-0002-1784-2920"
    } ],
    "http://purl.org/dc/terms/license" : [ {
      "@id" : "https://creativecommons.org/licenses/by/4.0/"
    } ],
    "http://purl.org/nanopub/x/introduces" : [ {
      "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/dggs-benchmark-outcome-2026"
    } ],
    "http://purl.org/nanopub/x/wasCreatedAt" : [ {
      "@id" : "https://nanodash.knowledgepixels.com/"
    } ],
    "https://w3id.org/np/o/ntemplate/wasCreatedFromProvenanceTemplate" : [ {
      "@id" : "https://w3id.org/np/RA7lSq6MuK_TIC6JMSHvLtee3lpLoZDOqLJCLXevnrPoU"
    } ],
    "https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate" : [ {
      "@id" : "https://w3id.org/np/RACJ58Gvyn91LqCKIO9zu1eijDQIeEff28iyDrJgjSJF8"
    }, {
      "@id" : "https://w3id.org/np/RAukAcWHRDlkqxk7H2XNSegc1WnHI569INvNr-xdptDGI"
    } ],
    "https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate" : [ {
      "@id" : "https://w3id.org/np/RA2zljn0Nw9SadppOyxZoh-_Rxosslrq-vYG-p9SttnJE"
    } ]
  }, {
    "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/sig",
    "http://purl.org/nanopub/x/hasAlgorithm" : [ {
      "@value" : "RSA"
    } ],
    "http://purl.org/nanopub/x/hasPublicKey" : [ {
      "@value" : "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWv2pJnmDsBOq8OlT1aSvYXSuWT34WOp4FYqEzdnn2F0kqzcFevBqWGZDxJWC0lqCrDEuNfp2QFyPe/+nES9dlHGYIhqPi68fwK6ZiNUotRFxXou+rjFznVvUxtCL8Ede79EBHwWN61QtwSIcU12bLoZsNPFlqQASQ93BJuKlihwIDAQAB"
    } ],
    "http://purl.org/nanopub/x/hasSignature" : [ {
      "@value" : "Z71TMSOQYiGbHu7/Ds9GhQTvme78F6/2BzJq1ztWJmqF9KxqTlag97ruOsdB9z9upzhsQdYm4IwXttG2LBjiPN/OX0rOByxhVmmWBp8WbDvQrXhdS/Sk0b3BVAQl+cMxOcTyisN0zVCQKkQSDd22Matht0G+1pSPg35YbzFshYs="
    } ],
    "http://purl.org/nanopub/x/hasSignatureTarget" : [ {
      "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY"
    } ],
    "http://purl.org/nanopub/x/signedBy" : [ {
      "@id" : "https://orcid.org/0000-0002-1784-2920"
    } ]
  } ],
  "@id" : "https://w3id.org/np/RAd6b6fofaXRMgPemdmvoR1iTdX18eW5R4rWXeqAl40QY/pubinfo"
} ]