Catalog record · Customer Experience
Stage as of Oct 8, 2025 · historical report, not live reconfirmation.
Hybrid semantic search of probation contact logs
Primary workflow source. A named organization's workflow supported by a reviewed primary source. Stage is reported separately; this label does not establish measured outcomes or independent validation.
Last researched Oct 29, 2026. Source access and reported stage are recorded below; deployment evidence does not establish ROI.
What the research supports
nDelius combines BM25 with self-hosted Mixedbread embeddings in OpenSearch to retrieve original case notes. The ATRS record reports 1,000 daily users and 5,000 weekday searches in March 2025. It describes ongoing monitoring and annual reviews of note-language drift, query drift, usefulness and retirement. A September 2026 ministry snapshot describes the capability as live and scaled.
- Reported stage
- Scaled
- Technology
- Other supported technology
- Business function
- Not assessed
- Impact (legacy label)
- Not labeled
- Catalog date · unconfirmed
- Not reported
- Imported
- Oct 29, 2026
- Last researched
- Oct 29, 2026
Measures & evidence
No quantified measure recorded. This is a gap in the evidence, not a finding of no value.
Documented vendor relationships
No vendor relationship has been linked to this specific workflow in the curated overlay. This does not mean it was built without vendors.
See the company’s documented relationshipsDeployment evidence & limits
Live/scaled per September 2026 issuer snapshot; older ATRS record still labels Public Beta Status as of 2025-10-08.
Stage is as reported in the cited evidence. Current operating status has not been independently reconfirmed; the research date is an editorial review date.
ATRS evaluation used practitioner labels for five common terms and reports variation by search term. No external performance testing; no published numeric F1/MAP scores. ATRS beta label and later scaled snapshot must be retained as a dated stage discrepancy. Probation terminology and relevance labels do not transfer to banking. Maintain account entitlements, temporal ordering and literal-search fallback. Usage is not time saved or improved risk outcomes.
Potential FS application · inferred
Inferred: search investigator/contact-center case histories for synonyms, abbreviations and misspellings while returning original evidence rather than generated conclusions.
Inferred: search investigator/contact-center case histories for synonyms, abbreviations and misspellings while returning original evidence rather than generated conclusions.
Original industry: Justice and probation administration. Transfer limits: Probation terminology and relevance labels do not transfer to banking. Maintain account entitlements, temporal ordering and literal-search fallback. Usage is not time saved or improved risk outcomes.
Source register
- MoJ: nDelius Contact Log Semantic Searchgov.uk · opens in a new tab
Ministry of Justice / GOV.UK · issuer · full-text · Published 2025-10-08
- Action 2.1.2: Accelerate insight with AI-powered search and knowledge retrievalai.justice.gov.uk · opens in a new tab
Justice AI Unit · issuer · full-text · Published 2026-09-24
Research lanes: public_science_transfer · Batch global-discovery-2026-10-29. Coverage and remaining gaps