TAMR+ Lite

Trust-Augmented Multi-phase Retrieval — Open-Core Edition

The open-source core of the TAMR+ framework, providing EU AI Act-compliant scoring, gap attribution, and retrieval primitives for building trustworthy AI applications.

Three-Stage Architecture

1. Document Manifest Selector — 5-signal deterministic pre-filtering (zero LLM calls)
2. Multi-Phase Retrieval — Vector ANN, KG alignment, causal density, diversity selection
3. TRACE Scoring — 5-dimension formula-based scoring with gap attribution

Installation

pip install tamr-plus-lite

Quick Start

from tamr_plus_lite import build_trace_scores, compute_gap_attribution

# Score a response
score = build_trace_scores(
    source_count=5,
    total_claims=10,
    cited_claims=8,
    evidence_strength=0.8,
)
print(f"TRACE Score: {score.overall:.0%}")
print(score.explanation)

# Explain gaps
gap = compute_gap_attribution(
    trace_score=score.overall,
    source_count=5,
    total_claims=10,
    cited_claims=8,
)
print(gap.explanation)
for component in gap.components:
    print(f"  {component.friendly_name}: {component.value:.1%} — {component.action}")

Modules

EU AI Act Compliance

All scoring is formula-based (not ML) for full transparency:

• Art. 13: Every parameter is explicit and auditable
• Art. 14: Every score decomposes into human-readable factors
• Art. 15: Deterministic formulas guarantee reproducibility

TRACE Dimensions

Gap Attribution Taxonomy

Full TAMR+

This is the open-core edition. The full TAMR+ SDK includes:

• Premium 7-phase retrieval pipeline (HDI, governance, compliance certificates)
• Gamified insights engine
• Production domain profiles with calibrated weights

Contact: harish.kumar@quantamixsolutions.com

License

Apache-2.0 — Quantamix Solutions B.V.

Patent Notice

TAMR+ Lite implements methods covered by European Patent Applications EP26162901.8 and EP26166054.2, owned by Quantamix Solutions B.V.

Licensed under Apache 2.0 with express patent grant (Section 3). Reimplementation of the patented methods outside this software requires a separate patent license. See LICENSE for details.