rewire.it
Task

CAMI II superkingdom read classification

CAMI II read classification evaluates a computationally limited subsample, with taxonomic-rank-specific interpretation.

SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

1 evaluation · 1 metric row

At a glance

Inputs, training, access and other details

Explanatory profile: limited source coverage · Automated source review, 2026-09-16. Review applies to the cited claims; unresolved fields are listed below. Numerical results retain their own review status.

Data, procedure and scoring
PropertyDescription and evidence
DatasetsA 10,000-read subset of CAMI II Sample_0 from the human-microbiome collection.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
SplitsQueries are classified against the paper’s separately assembled metagenomic reference/training data.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
MetricsMacro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
BaselinesNCD-gzip and Kraken2.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
Leakage controlsThe CAMI experiment classifies a single Sample_0 read subsample with the separately assembled metagenomic reference collection. The CAMI section does not report removal of CAMI source genomes or close relatives from that reference. Gene-out and taxon-out partitions elsewhere in the paper belong to different evaluations. · Not reported in inspected sources
SourcesNormalized compression distance for DNA classification · Methods: metagenomic reference data; Results: CAMI dataset and Table 5; cached paragraphs 49–58,112–115
UncertaintyTable 5 reports point metrics for one 10,000-read CAMI subsample. The CAMI results section supplies no repeated-subsampling variability or confidence intervals; five-run cross-validation in Tables 3–4 concerns the separate human-gene classification experiment. · Not reported in inspected sources
SourcesNormalized compression distance for DNA classification · Results: Human DNA classification, CAMI dataset; Tables 3–5
Entity typePaper-specific computational evaluation protocol.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
OrganismsCAMI II human-microbiome community taxa.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
AssaysRead-origin taxonomy at the selected evaluation rank.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
Allowed inputsDNA reads and a separately assembled reference/training collection.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
AdaptationReference-based classification using NCD-gzip or Kraken2.
SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

How it works

How it worksComputational evaluation flow
Computational evaluation flow1. Input: DNA reads and a separately assembled reference/training collection.. Then: 2. Evaluation: Reference-based classification using NCD-gzip or Kraken2.. Then: 3. Readout: Macro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation.Computational evaluation flow1. Input: DNA reads and a separately assembled reference/training collection.. Then: 2. Evaluation: Reference-based classification using NCD-gzip or Kraken2.. Then: 3. Readout: Macro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation.Computational evaluation flow1. Input: DNA reads and a separately assembled reference/training collection.. Then: 2. Evaluation: Reference-based classification using NCD-gzip or Kraken2.. Then: 3. Readout: Macro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation.

Conceptual summary of the cited evaluation; exact task configuration and source version remain part of the protocol.

SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
Evaluation methodology

A 10,000-read subset of CAMI II Sample_0 from the human-microbiome collection. Queries are classified against the paper’s separately assembled metagenomic reference/training data. Macro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation. NCD-gzip and Kraken2.

SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Recorded evaluations

Each evaluation records what was tested and under which conditions.

Tested entities and results

Release 2026-09-17-d277315f7d76 · 1 evaluation · 1 metric row. Different protocols are not a single leaderboard.

Results grouped by the exact reported evaluation
Metric and findingCoverage and uncertaintyEvidence
NCD-gzip: CAMI II superkingdom read classification

Superkingdom-level macro-averaged F1; NCD assigns every read.

Author-reported evaluation · Evaluation metadata: needs review

0.9804 Macro F1

Unit: unitless · Direction: unknown

Uncertainty: not reported in legacy extract

Scored: Not reported · Eligible: Not reported

source checkedNormalized compression distance for DNA classification · Table 5, NCD Superkingdom row, F1 column

Source checking is not independent reproduction.

Papers and result coverage

Last literature check: 2026-09-17. Primary-paper discovery and source inspection. Source-checked results are not independently reproduced experiments.

Paper or primary resourceVersionReference
Normalized compression distance for DNA classificationversion of recordRead source
DOI: 10.7717/peerj.20677

What is still missing

  • Table 5 prints NCD only. Narrative compares Kraken2 but supplies no paired numerical Kraken2 row; do not manufacture a two-model chart.
  • Do not attach five-fold Human DNA results from Table 3 to CAMI II.
Search and extraction details

primary comparison table screened

Searches

  • "Normalized compression distance for DNA classification"

Evidence locations

  • Table 5
  • Results: CAMI analysis
  • Methods: Metagenomic reads and Genome fragmentation

Strengths and limitations

Strengths and considerations

No source-reviewed explanatory claims are recorded here yet.

Limitations and conditions

  • The subsample contains only Bacteria at superkingdom level, so that result does not establish broad multiclass discrimination. Phylum and superkingdom are separate catalogue outcomes.
    SourcesNormalized compression distance for DNA classification · Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116
Profile review details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Stable record: reported-task-a2c37b8c420bc3

Evidence table

Inspect claims, sources and review details

Trace each statement to its source and review. A context-only reference supports the record generally; it does not verify an individual field. Source checking does not reproduce an experiment.

One row per statement and cited source. Multiple citations are not independent evaluations. Shared locators are labelled explicitly.

17 evidence rows matching the loaded filters

Claims, original sources and review scope · Release 2026-09-17-d277315f7d76
Property and statementOriginal source and locationReview and provenance
Diagram caption

Conceptual summary of the cited evaluation; exact task configuration and source version remain part of the protocol.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.diagram.caption

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Diagram steps

["Input: DNA reads and a separately assembled reference/training collection.","Evaluation: Reference-based classification using NCD-gzip or Kraken2.","Readout: Macro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation."]

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.diagram.steps

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Diagram title

Computational evaluation flow

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.diagram.title

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Datasets

A 10,000-read subset of CAMI II Sample_0 from the human-microbiome collection.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.0.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Splits

Queries are classified against the paper’s separately assembled metagenomic reference/training data.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.1.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Adaptation

Reference-based classification using NCD-gzip or Kraken2.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.10.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Metrics

Macro-F1 is the arithmetic mean of classwise F1; only classes present in the evaluated subset enter the macro calculation.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.2.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Baselines

NCD-gzip and Kraken2.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

source checked

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.3.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Leakage controls

The CAMI experiment classifies a single Sample_0 read subsample with the separately assembled metagenomic reference collection. The CAMI section does not report removal of CAMI source genomes or close relatives from that reference. Gene-out and taxon-out partitions elsewhere in the paper belong to different evaluations.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Methods: metagenomic reference data; Results: CAMI dataset and Table 5; cached paragraphs 49–58,112–115

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

unreported

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.4.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Uncertainty

Table 5 reports point metrics for one 10,000-read CAMI subsample. The CAMI results section supplies no repeated-subsampling variability or confidence intervals; five-run cross-validation in Tables 3–4 concerns the separate human-gene classification experiment.

Individual claims
Normalized compression distance for DNA classification

Original source ↗

Results: Human DNA classification, CAMI dataset; Tables 3–5

Version: version of record
Retrieved: 2026-09-16T10:44:03.414806+00:00

unreported

automated source review · 2026-09-16

Audit details

Relevant full-paper computational evaluation sections, tables/captions and cited supplementary task passages were reviewed. Reporting omissions are scoped to the inspected sources. Original numerical results are unchanged.

Field: attributes.profile.facts.5.value

Source artifact SHA-256: 10e9ba780c45e7787baff9b81ef7b45c014d7fe6c716d6c759e14d89a813dc1c

Hash scope: Hash scope not separately documented; inspect source record

Inspected artifact

Sources and history

Release 2026-09-17-d277315f7d76 · Record review: needs review

2 source records and release historyDownload this release
Technical metadata and extraction receipts

Stable ID: reported-task-a2c37b8c420bc3

areas
microbes-communities
tasks
CAMI II superkingdom read classification
entity level
task
version
Not reported
task
CAMI II superkingdom read classification
scope note
Paper-specific evaluation task; protocol completeness requires further extraction.
benchmark research
review date: 2026-09-17; status: primary_comparison_table_screened; primary sources: expansion-p3-ncd-metagenomics-2026; inspected locators: Table 5; Results: CAMI analysis; Methods: Metagenomic reads and Genome fragmentation; searched queries: "Normalized compression distance for DNA classification"; gaps: Table 5 prints NCD only. Narrative compares Kraken2 but supplies no paired numerical Kraken2 row; do not manufacture a two-model chart.; Do not attach five-fold Human DNA results from Table 3 to CAMI II.; claim scope: Primary-paper discovery and source inspection. Source-checked results are not independently reproduced experiments.
historical missing metadata
protocol version: not_reported_in_legacy_extract; split: not_reported_in_legacy_extract
metadata review scope
historical_missing_metadata preserves the original discovery state. Current descriptive evidence and missingness are recorded in profile.facts; numerical-result review is separate.
legacy kinds
benchmark
entity classification
review date: 2026-09-17; rationale: This source-scoped record identifies the biological prediction task and holds its paper context. Preserve the existing task identity; exact split, model adaptation and scoring remain in linked evaluations or separate protocol records.; source ids: ncd-metagenomics-2026; source locator: Methods: Evaluation protocol; Results: CAMI II; cached text lines 67–68, 113–116; ambiguities: A paper- or suite-specific task may constrain some inputs or metrics; that alone does not make it interchangeable with a complete versioned protocol. No protocol equivalence is inferred.; Some legacy profile Entity type facts use the generic phrase computational evaluation protocol. That boilerplate is not sufficient to establish a single fixed protocol identity or to merge this task with another protocol record.
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