AI Data & Annotation · Built around a defined population
AI Dataset Collection
Population claims hold only if the target population, critical slices, source rights, consent evidence, sampling rules, rejections, and lineage remain visible from the collection specification through release.
A usable training set starts with the population it has to represent and the sources it may draw from. We collect against that definition and keep each record tied to its source, proposed usage basis, consent evidence, collection rule, and rejection history.
Collection closes with a sampling specification, source-rights record, lineage-preserving protocol, and slice scorecard showing the population gaps and restrictions accepted for this version.


Some of the 500+ brands we've worked with
See all referencesSteps, gates, and who decides
How we work
Collection starts from a population and sampling specification. The protocol then decides which records enter, which are rejected, and what evidence stays attached to both outcomes.
Frame the dataset
We write down the intended use, target population, important slices, source options, sampling limits, security boundaries, and the evidence required for acceptance.
- AI assist
- An initial sampling specification is drafted from the stated purpose and population.
- Human gate
- You confirm that the specification reflects the dataset you actually need. You confirm the target population, slices, and acceptance targets are correct.


Review sources and permissions
For each source, we record provenance, the proposed usage basis, applicable consent evidence, access conditions, and any records that must be excluded or isolated.
- AI assist
- Compiles provenance and usage-basis notes for each candidate source for review.
- Human gate
- Only sources with a reviewable basis move into collection. Your data owner approves which sources have a reviewable rights basis.


Collect without losing lineage
We run the protocol, preserve source links, deduplicate records, flag defects, and watch for source drift. Rejections and transformations stay in the version history.
- AI assist
- Flags likely duplicates and source drift while collection is running.
- Human gate
- A sampled record must trace back to its source and collection rule. Your data owner decides which flagged defects require exclusion.


Challenge coverage and accept
We compare target-slice coverage, rights and consent evidence, lineage completeness, and rejected sample rate with the agreed targets before preparing the release.
- AI assist
- Compiles the coverage and acceptance report from the collected evidence.
- Human gate
- You decide which documented gaps are acceptable for this version. You decide which documented coverage gaps are acceptable for this version.


Named artifacts you keep
What you get
The dataset arrives with its collection history. Your reviewer can see the intended population, source decisions, rejected records, weak slices, and unresolved restrictions.


Dataset
Dataset and sampling specification
A reviewable definition of the purpose, population, critical slices, source options, sampling constraints, and acceptance targets.


Policy
Candidate-source rights and consent register
A source-level record of provenance, proposed usage basis, consent evidence, access conditions, and unresolved restrictions.


Playbook
Collection protocol and provenance record
The collection steps, filters, deduplication rules, lineage events, rejections, transformations, and version history used to build the dataset.


Report
Slice coverage and source-acceptance scorecard
A slice-level view of coverage, defects, rights evidence, lineage completeness, rejected samples, and the open gaps considered at acceptance.
Scope and honest limits
When to bring us in
This is the right job when the dataset must stand for a named population and someone will later ask, record by record, where the material came from and why it was admitted.
A good fit when
- Your intended model, evaluation, or research use is clear, but nobody has translated that purpose into a population and sampling specification.
- Critical populations and slices matter, yet coverage follows whichever sources are easiest to open rather than the sampling constraints you agreed.
- Rights, consent, security restrictions and rejected samples are recorded during collection, but the history disappears before review.
- The intended use has been stated, but the target population, critical slices, sampling constraints, and acceptance targets still conflict.
- Candidate sources are available, though nobody has weighed their usage rights, consent, provenance, and security conditions in a single pass.
- Your records are being collected, but deduplication, defect controls, coverage checks, acceptance sampling, and lineage are not applied consistently.
- A dataset version is ready to hand over, yet its gaps, exclusions, rejected samples, and review owner are missing from the release record.
Better handled as other work when
- You need a legal conclusion that a source or proposed use is permitted. The rights file preserves the evidence, while your qualified authority makes that judgment.
- You need one collected version to represent every population, condition, or later use. Its acceptance applies only to the stated purpose and sampling design.
- You need data purchased or third-party access secured as part of collection. We can record candidate sources, but acquisition requires a separate agreement.
If one of these is closer to your situation, start here instead: Explore AI data services
Engineers who ship production AI
This is the part of Zeo that writes and ships code. Our senior engineers build agents, chatbots, and RAG pipelines, along with the automation and data work around them, and they keep operating those systems once they're live. We've worked with more than 500 brands since 2011.
Tools we use
Tools behind this work
DVCthe version history the acceptance review compares this collection pass against
Scale AIthe managed collection operation keeping consent evidence tied to each record
Label Studiothe collection log tying source, decision, and rejection reason together as one record
Snorkel AIthe programmatic rule layer the coverage-acceptance check runs against for systematic bias
Tonicthe synthetic supplement filling a population gap real sourcing can't reach
Next step
Define the population before opening the sources


Before you decide




























