{"schema_version":1,"research_id":"eoa_inverse_innovation_exp05_external_evaluation_20260803","source_assessment_id":"invariant_mode_decomposition_design__art_aesthetics:P5:v0","cell_id":"invariant_mode_decomposition_design__art_aesthetics","search_queries":["site:tate.org.uk research performance art conservation documentation restaging artist intent","site:guggenheim.org conservation variable media performance art restaging","performance art conservation documentation restaging challenges research paper","dynamic mode decomposition human motion time series performance research","Tate Strategy for Documentation and Conservation of Performance 2021 PDF","Tate Reshaping the Collectible performance conservation artist interview activation official","Variable Media Questionnaire performance art Guggenheim official PDF","Motion Bank digital dance scores official performance documentation","site:bls.gov Occupational Employment and Wage Statistics archivists curators museum technicians conservators 2025","site:bls.gov occupational outlook handbook producers directors 2025 median pay","official performance art conservation documentation artist intent museum activation strategy","performance art preservation restaging artist authority documentation embodied knowledge study","\"Unsupervised and Generic Short-Term Anticipation of Human Body Motions\" DOI","\"Unsupervised and Generic Short-Term Anticipation\" Frontiers robotics","dynamic mode decomposition human body motions journal 2020"],"sources":[{"source_id":"S1","title":"Developing a strategy for the conservation of performance-based artworks at Tate","publisher":"UCL Discovery / Journal of the Institute of Conservation","url":"https://discovery.ucl.ac.uk/id/eprint/10111870/","source_class":"PRIMARY_RESEARCH","publication_date":"2019","accessed_at":"2026-08-03","claims_supported":["Tate developed a formal strategy because performance-based works were increasingly present in its collection.","The strategy supports continued activation through a Performance Specification, Activation Report, and Map of Interactions.","Major collecting institutions already treat performance preservation as a documentation, interaction, and activation problem."]},{"source_id":"S2","title":"Performance: Conservation, Materiality, Knowledge","publisher":"Bern Academy of the Arts","url":"https://www.bfh.ch/en/research/research-projects/2020-396-820-785/","source_class":"OFFICIAL_ORGANIZATION_DATA","publication_date":"2020","accessed_at":"2026-08-03","claims_supported":["A funded multi-institution research project expressly identified conservators' need for deeper methods concerning performance-based works.","Performance works challenge object-centered documentation because they are temporary and involve human or non-human bodies.","The project investigated documentation, archives, material residues, and knowledge transmission with partners including Tate and UCL."]},{"source_id":"S3","title":"Variable Media Network","publisher":"Variable Media Network / Guggenheim Museum initiative","url":"https://www.variablemedia.net/e/welcome.html","source_class":"OFFICIAL_ORGANIZATION_DATA","publication_date":"n.d.","accessed_at":"2026-08-03","claims_supported":["The Variable Media approach already pairs creators with museum and media specialists to preserve ephemeral works, including performances.","It records medium-independent behaviors and creator-approved acceptable future forms through a questionnaire.","Artist-governed variability and behavior-based preservation are established prior practice."]},{"source_id":"S4","title":"Sample Documentation and Templates for Artists, Organizations, and Collectors of Time-Based Media Artworks","publisher":"The Metropolitan Museum of Art","url":"https://www.metmuseum.org/de/essays/sample-documentation-templates","source_class":"OFFICIAL_GUIDANCE","publication_date":"2019-02-08","accessed_at":"2026-08-03","claims_supported":["The Met publishes acquisition procedures and artist questionnaires specifically for performance artworks.","The Met requires artist questionnaires to document composition, exhibition, preservation, installation, and long-term-care guidance.","Identity and iteration reports already document core identity, permitted flexibility, equipment, and exhibition decisions."]},{"source_id":"S5","title":"Scores","publisher":"Motion Bank / The Forsythe Company","url":"https://www-archive.motionbank.org/en/content/scores.html","source_class":"OFFICIAL_ORGANIZATION_DATA","publication_date":"n.d.","accessed_at":"2026-08-03","claims_supported":["Motion Bank and Synchronous Objects are close precedents for computer-assisted documentation, analysis, and transmission of choreographic ideas.","Motion Bank developed online digital scores with multiple choreographers.","Piecemaker supports notation, rehearsal recording, data organization, and digital-score production."]},{"source_id":"S6","title":"Capturing of Contemporary Dance for Preservation and Presentation of Choreographies in Online Scores","publisher":"Fraunhofer IGD and TU Darmstadt","url":"https://www-archive.motionbank.org/sites/motionbank.org/files/130911_motionbank_paper_digital_heritage.pdf","source_class":"PRIMARY_RESEARCH","publication_date":"2013","accessed_at":"2026-08-03","claims_supported":["Markerless, multi-camera capture and online representation were implemented with contemporary choreographers and dance companies.","The work captured several dancers, cues, alignments, timing variation, and synergies or asymmetries.","The demonstrated workflow used ordinary camcorders and Kinect cameras, while noting that manual processing was extensive and dance digitization posed research challenges."]},{"source_id":"S7","title":"Unsupervised and Generic Short-Term Anticipation of Human Body Motions","publisher":"Sensors (MDPI)","url":"https://www.mdpi.com/1424-8220/20/4/976","source_class":"PRIMARY_RESEARCH","publication_date":"2020-02-12","accessed_at":"2026-08-03","claims_supported":["Dynamic Mode Decomposition with delay coordinates was implemented on human motion-capture time series.","The study reported interpretable short-horizon reconstruction and anticipation results for multiple motion classes.","Direct DMD performed poorly in general; partial observability, matrix dimensions, delay selection, and short validity horizons are material limitations."]},{"source_id":"S8","title":"Occupational Employment and Wage Statistics Tables, May 2025","publisher":"U.S. Bureau of Labor Statistics","url":"https://www.bls.gov/oes/tables.htm","source_class":"GOVERNMENT_OR_REGULATOR","publication_date":"2026","accessed_at":"2026-08-03","claims_supported":["May 2025 national occupational wage tables provide a public labor-cost basis for 2026 resource-equivalent estimates.","The estimates can ground broad labor bands but do not provide a project-specific quote for conservators, performers, engineers, or production facilities."]}],"problem_evidence":{"support":"MODERATE","rationale":"Tate, the Met, the Variable Media Network, and a funded Bern Academy project visibly treat conservation, activation, variability, and knowledge transmission for performance-based works as consequential institutional problems. Motion Bank demonstrates that timing, alignments, and choreographic structures motivate richer digital scores. No source directly measures the candidate's narrower assertion that coordinate-separated documentation systematically loses stable low-amplitude cross-channel modes during restaging, so prevalence and effect size remain unverified.","source_ids":["S1","S2","S3","S4","S5","S6"]},"stakeholder_evidence":{"support":"MODERATE","rationale":"Tate and the Met are identifiable institutional adopters of structured performance documentation, while the Bern project explicitly states a need for new conservation methods and includes Tate and UCL as partners. Motion Bank shows choreographer participation in digital-score development. None expresses demand, budget, or authorization for a DMD-based modal restaging score specifically, and no named artist, performer group, or collection has agreed to this pilot.","source_ids":["S1","S2","S4","S5","S6"]},"prior_art":{"proximity":"ADJACENT_PRIOR_ART","closest_analogues":[{"name":"Tate Performance Specification, Activation Report, and Map of Interactions","similarity":"Documents performance identity, activation decisions, and interactions for continued realization of collected works.","remaining_difference":"The published strategy does not report phase-specific transition estimation, eigenmodes, scalar modal evolution, held-out modal reconstruction, or spectral-gap monitoring.","source_ids":["S1"]},{"name":"Variable Media Questionnaire and Met identity/iteration reports","similarity":"Records artist intent, core identity, permitted variability, equipment, presentation history, and acceptable transformation across iterations.","remaining_difference":"These are qualitative governance and documentation instruments rather than data-fitted dynamical models or sensitivity-tested reduced-order scores.","source_ids":["S3","S4"]},{"name":"Motion Bank online scores and Synchronous Objects","similarity":"Uses computer-assisted capture, annotation, analysis, and visualization to document and transmit choreographic structures, cues, alignments, timing, and variation.","remaining_difference":"The reviewed sources do not organize a restaging artifact around invariant modes, eigenvalue-like responses, spectral stability, or out-of-sample modal residual criteria.","source_ids":["S5","S6"]},{"name":"Delay-coordinate Dynamic Mode Decomposition for human motion","similarity":"Fits interpretable, reduced dynamical representations to motion-capture sequences and evaluates reconstruction and short-horizon prediction.","remaining_difference":"It was not tested for performance-art conservation, artist-governed variability, multi-channel theatrical states, or authorized restaging decisions.","source_ids":["S7"]}],"distinctive_claim_remaining":"For one artist-authorized passage with repeatable local dynamics, a phase-specific modal score can add out-of-sample reconstruction of artist-designated cross-channel relationships beyond coordinate-wise cue interpolation, and can help an authorized restaging team preserve those relationships without narrowing predeclared performer variability. Success requires stable retained subspaces across rehearsal resamples, acceptable structured residuals, and no worse protected-variability outcome; failure on any of those measures falsifies the claim.","confidence":"MODERATE"},"implementation_evidence":{"support":"MODERATE","rationale":"Multi-camera, markerless dance capture and digital-score production have been implemented, and DMD with delays has been tested on human motion data. Existing museum workflows establish places for artist specifications and iteration reports. However, direct DMD can fail on partially observed motion; the proposed multi-channel operator may be underdetermined with few rehearsals; phase boundaries, artist-defined outcomes, gap thresholds, and cross-channel synchronization remain design choices. Legal and workflow feasibility depend on identifying the rights holder, obtaining performer consent and data-use terms, and ensuring the archive does not convert descriptive patterns into mandatory choreography. No reviewed source validates the complete workflow or its safety in a live restaging.","source_ids":["S1","S3","S4","S5","S6","S7"]},"scores":{"meaningful_impact":{"score":3,"rationale":"A successful method could improve continuity of performance works and reduce both relational drift and over-fixation, but prevalence, effect size, and realized restaging benefit are unmeasured.","source_ids":["S1","S2","S6"]},"stakeholder_pull":{"score":3,"rationale":"Museums and funded conservation researchers visibly seek better performance-preservation methods, but no stakeholder has requested or committed to this particular modal artifact.","source_ids":["S1","S2","S4"]},"incremental_advantage":{"score":2,"rationale":"The score may expose coupled dynamics not explicit in qualitative reports or online scores, but no comparative evidence shows an advantage over cue sheets, artist interviews, interaction maps, video, or Motion Bank-style scores.","source_ids":["S1","S4","S5","S6"]},"distinctiveness_plausibility":{"score":3,"rationale":"No close match combining performance conservation with phase-specific DMD, sensitivity, residual, and spectral-drift governance was found, although most non-modal components have strong adjacent precedents.","source_ids":["S1","S3","S4","S5","S6","S7"]},"technical_implementability":{"score":3,"rationale":"Capture and DMD components are implementable, but sparse repetitions, partial observability, nonlinear improvisation, phase selection, and near-degenerate modes create substantial model-validity risk.","source_ids":["S6","S7"]},"adoption_authority_feasibility":{"score":3,"rationale":"Artist questionnaires, specifications, and iteration reports provide a credible institutional workflow, but the actual artist representative, performer permissions, archival controller, and jurisdiction-specific rights have not been secured.","source_ids":["S1","S3","S4"]},"evidence_readiness":{"score":3,"rationale":"A bounded passage-level comparison can be preregistered with existing methods, yet decisive evidence requires proprietary rehearsal data, artist judgments, consent, and a live authorized team.","source_ids":["S4","S6","S7"]},"safety_net_benefit":{"score":3,"rationale":"Supplement-only use, visible residuals, consent withdrawal, and retention of conventional records provide a plausible rollback path, but these safeguards are proposed rather than field-tested.","source_ids":["S1","S3","S4"]},"scalability":{"score":2,"rationale":"The computation can be reused, but every artwork requires new authority, state definitions, phase models, interpretation limits, and revalidation after performer or site changes.","source_ids":["S1","S3","S6","S7"]}},"score_confidence":"MODERATE","costs":{"first_evidence":{"band_2026_usd":"10K_TO_50K","scope":"One preregistered, nonpublic passage study with several authorized repetitions, existing cameras and technical logs, limited synchronization, modeling, one comparator, and one facilitated interpretation session.","confidence":"MODERATE","assumptions":["The partner supplies rehearsal space and conventional documentation.","No custom markerless-tracking system or union-scale public production is required.","Approximately 150-400 loaded specialist hours plus performer and artist honoraria are sufficient.","BLS occupational tables are used only as a labor baseline; local rates and honoraria may be higher."],"source_ids":["S6","S8"]},"initial_deployment_startup":{"band_2026_usd":"50K_TO_250K","scope":"Build a reusable institutional workflow: synchronized capture kit, data schema, analysis code, privacy and consent templates, archival packaging, staff training, and validation procedures.","confidence":"LOW","assumptions":["Uses commercially available cameras and computing rather than a custom motion-capture stage.","Requires conservation, production, data-science, archival, and legal-review labor.","Does not include acquisition rights or creation of a new performance work.","Motion Bank's workflow demonstrates feasibility but also reports extensive manual processing."],"source_ids":["S1","S4","S6","S8"]},"operational_launch":{"band_2026_usd":"50K_TO_250K","scope":"Produce and validate the first complete artwork-specific modal score across multiple passages, then support one authorized restaging rehearsal while retaining conventional documentation.","confidence":"LOW","assumptions":["Includes artist, performer, stage-management, technician, conservator, and analyst time.","Includes additional capture and iterative model correction but not a major public exhibition's general production budget.","Rights and consent are obtainable without litigation or extensive negotiation.","Failure criteria may terminate work before a complete score is produced."],"source_ids":["S1","S4","S6","S8"]},"annual_recurring":{"band_2026_usd":"10K_TO_50K","scope":"Secure storage, periodic format checks, software maintenance, limited drift/revalidation work, and documentation updates for one to several scores in years without a full restaging.","confidence":"LOW","assumptions":["Major new sites, casts, equipment changes, or public activations are separately budgeted.","Existing institutional preservation infrastructure is available.","Recurring work is mostly specialist labor rather than new hardware."],"source_ids":["S1","S4","S8"]}},"verified_pipeline_gates":{"externally_supported_problem":{"status":"YES","reason":"Multiple museum and research organizations document the difficulty and institutional importance of conserving, documenting, and reactivating performance-based works, although the exact modal failure mechanism remains unmeasured.","source_ids":["S1","S2","S3","S4","S6"]},"externally_credible_adopter_or_authorizer":{"status":"YES","reason":"Tate and the Met are credible institutional adopters of structured performance documentation, and artist questionnaires establish a credible authorizer pathway. No institution or artist has committed to this specific study.","source_ids":["S1","S4"]},"distinct_testable_incremental_claim":{"status":"YES","reason":"The proposal can be tested against coordinate-wise cue interpolation on held-out repetitions using reconstruction, subspace stability, authorized relational assessments, and protected-variability outcomes.","source_ids":["S6","S7"]},"bounded_next_evidence_step":{"status":"YES","reason":"One passage, one version, one approved state vector, several repetitions, one conventional comparator, and explicit technical and artistic falsifiers form a bounded study.","source_ids":["S4","S6","S7"]},"no_unresolved_safety_or_authority_stop":{"status":"UNCERTAIN","reason":"The proposed limits are sensible, but no named rights holder, performer consent agreement, data controller, retention rule, or jurisdiction has been verified. Testing must not begin until those authorizations exist.","source_ids":["S1","S3","S4"]},"credible_cost_scope_and_range":{"status":"YES","reason":"The four scopes are bounded and broad bands are credible as resource-equivalent planning estimates using demonstrated capture workflows and public occupational wage tables; project-specific quotes are absent, so confidence is limited.","source_ids":["S6","S8"]}},"next_evidence_step":"With one named artist or authorized representative and collecting or presenting institution, preregister a nonpublic study of one 2-5 minute artist-declared passage. Before capture, execute performer consent and data-control terms; define approved variables, phase boundaries, protected relationships, permitted variability, a structured-residual budget, and subspace-stability thresholds. Record at least 8 authorized repetitions under one configuration. Fit on 6 and hold out 2, comparing (A) the modal score, (B) coordinate-wise cue interpolation using the same measurements, and (C) the conventional archive alone. Blind an authorized restaging team to which derived aid is supplied where practical. Primary tests are held-out relational reconstruction, retained-subspace stability under bootstrap resampling, team interpretation accuracy, and preservation of declared variability. Falsify further development if the modal method does not beat comparator A on preregistered relational error, if directions are unstable or only identifiable as an undifferentiated subspace, if conventional materials perform equivalently with less burden, if the team needs unrecorded original-person knowledge, or if performers or the artist report constrained or unsafe practice.","blocking_evidence":["No field evidence shows that coordinate-level documentation causes the proposed coupled relational drift in a real authorized restaging.","No comparison demonstrates incremental benefit over Tate-style interaction maps, Met identity/iteration reports, Motion Bank scores, video, cue sheets, or oral transmission.","No named artist, rights holder, performer group, conservator, or institution has authorized data collection or agreed to evaluate the artifact.","The minimum repetitions, sampling frequency, measurement reliability, phase boundaries, residual budget, stability threshold, and practically meaningful effect size are unset.","No legal review establishes rights in the performance, recordings, motion-derived data, or future reuse for a particular jurisdiction.","No live evidence shows that a modal score can be interpreted without freezing improvisation, displacing embodied knowledge, or laundering a measured realization into a canonical one.","Equipment, specialist labor, honoraria, storage, and rights-clearance costs lack project-specific quotes."],"research_disposition":"PARTNERED_RESEARCH_PROGRAM","world_novelty_boundary":"The search found established performance specifications, artist questionnaires, identity and iteration reports, Variable Media practices, computer-assisted choreographic scores, markerless dance capture, and DMD for human motion. It did not establish whether the integrated modal-restaging-score concept has appeared elsewhere. World novelty, patentability, freedom to operate, market size, and realized impact remain unmeasured.","arm":"COMPLETE_PROPOSAL_PORTFOLIO","candidate_version":0,"controller_recommendation":{"action":"STOP_EMPIRICAL_RESEARCH_NEEDED","repairable":false,"material_progress_observed":true,"progress_targets":["Secure a named artist or authorized representative, institutional conservation partner, performer participants, and written authority for the bounded passage study.","Execute consent, rights, data-controller, retention, deletion, access, and future-reuse terms before recording.","Preregister state variables, phase boundaries, repetition count, sampling and synchronization requirements, residual and subspace-stability thresholds, meaningful effect size, and analysis code.","Run held-out comparisons against coordinate-wise cue interpolation and the conventional archive using identical source material.","Measure both relational fidelity and preservation of artist-declared variability; collect performer burden and constraint reports.","Document failure when modes are unstable, near-degenerate, non-transferable, dependent on hidden tacit knowledge, or no better than lower-burden practices.","Obtain project-specific labor, equipment, honorarium, archival, and legal-review quotes."],"reason":"Bounded web research verifies the broad conservation problem, credible institutional workflows, adjacent prior art, and component-level technical feasibility. It cannot establish the proposal's decisive incremental claim, actual authority, performer acceptability, stable passage-specific modes, or comparative restaging benefit; those require proprietary rehearsal data and live authorized testing. Under the controller rule, this empirical stop is non-repairable within web research."},"proposal_index":5}