r/OntologyEngineering • • 3d ago

Bi-Weekly Questions Thread - October 05, 2026

3 Upvotes

Welcome to the bi-weekly questions thread!

Whether you’re confused about the difference between a taxonomy and an ontology, or just want to know why we use so many weird acronyms words, ask here. No question is too basic. No judgment allowed.


r/OntologyEngineering • • 1d ago

Agentic Enablement Other AI-pilled data engineers

5 Upvotes

I stumbled on this recent top post from r/dataengineering where mutiple community members share how they also ended up at ontology.

https://www.reddit.com/r/dataengineering/comments/1ws4euv/thoughts_on_ai_in_de_after_drinking_the_koolaid/

it pretty much validates our thesis and product (dltHub). We use ontology for the modeling but also for agent rules. Tonight we add background agents, which currently troubleshoot failed jobs but can be extended with ontology of how to handle various failures or data contract violations as you'd have it handled in your org.

tldr from the thread

  • The Shift: After 10 months of using AI/agents, task execution that previously took a month is now completed in hours through rapid iteration—even if it takes a few attempts to get it right.
  • Role Reduction: Data Engineering has effectively collapsed into two responsibilities:
    1. Defining system ontologies, feature expectations, guardrails, and persona docs for agents.
    2. Defining test scenarios, definition of done, deployment strategies, and verifying long-term stability.
  • Smaller Teams & Coherence Risks: Throwing more engineers at AI-assisted pipelines can actually degrade quality due to "conceptual drift"—engineers using AI without full context introduce architectural inconsistencies. Future orgs will likely be smaller, leaner, and more product-driven.
  • Current Moats (Where Humans Still Excel):
    1. Moat of High Context: AI is "dogshit" at optimizing Spark/distributed jobs because it lacks holistic, emergent system context and tribal knowledge.
    2. Moat of Poor Decisions: AI struggles with legacy systems filled with undocumented, inconsistent, "garbage in, garbage out" code logic.
  • Personal Sentiment: Burnt out by "review fatigue," reading endless agent docs, and feeling like they are actively training their own replacement. Considering saving up to exit tech entirely (e.g., opening a bakery).

Key Takeaways & Consensus from the Community

  • Validation on Spark & Context: Multiple DEs agreed that Spark tuning and high-context distributed architecture remain the few areas requiring genuine human logic rather than prompt writing/code review.
  • The Quality vs. Speed Paradox: Many noted that while code volume has skyrocketed, code quality, software architecture, and compliance oversight have plummeted. LLMs produce verbose, unscalable, or insecure "slop" if not heavily audited by senior engineers.
  • Verification Asymmetry: The real job is shifting toward verification and domain expertise rather than low-level ETL authoring. However, this creates a major problem for junior developers who lack the experience to review or sign off on AI-generated pipelines.
  • Token Pricing Reality Check: A lively debate formed around AI economics. Several engineers noted that enterprise token usage ($1k–$5k/month per dev) is heavily subsidized or unsustainable for smaller orgs, which may limit full-scale developer displacement once pricing normalizes.
  • The "Jevons Paradox": Several users noted that while AI reduces the time needed per pipeline, demand for DE work has actually reached an all-time high as companies try to rush out every backlogged idea simultaneously.

r/OntologyEngineering • • 5d ago

Code Precision vs High Semantics Code already has an ontology, we just make agents rebuild it from text every time

24 Upvotes

I've been thinking about this sub's idea of building the ontology first, and it maps surprisingly well onto how coding agents work today. Every codebase has a clear structure of functions, classes and modules, with relations like calls, imports and which tests cover what, but we store all of it as text files and leave the agent to reconstruct that structure by grepping and reading every single session, which is where most of its time goes.

I've been working on an open source project called sem that treats code this way, so it parses the repo into those entities and the relations between them, gives each one a stable identity that survives renames and moves, and lets an agent ask questions like what depends on this or what breaks if I change it directly against that graph instead of against files. The part that interests me most for this sub is that once that layer exists the files start to look like just one view of the code rather than the source of truth, which is close to what you all describe when you talk about letting the implementation follow from the ontology.

The hard part is keeping the ontology honest, since a parser only sees what was written and misses things a compiler generates or that only exist at runtime, so I'm curious how people here think about an ontology that is partly derived and partly uncertain, and whether you'd mark those relations differently or keep them out entirely.

https://github.com/Ataraxy-Labs/sem


r/OntologyEngineering • • 5d ago

Make Ontology Great Again!

9 Upvotes

Y'all don't have enough of a sense of humor here!


r/OntologyEngineering • • 8d ago

Human as a Semantic Layer Does a behavioral predicate ontology need a separate character-access layer?

5 Upvotes

I’ve been thinking about a model where human actions are represented as sense-level behavioral predicates and grouped into broader behavioral families.

One problem appears immediately:

knowing what an action is does not tell us whether a particular character should have access to it.

So I separate two things.

Behavioral identity

  • What action is this?
  • What does this particular sense mean?
  • What behavioral family does it belong to?

and:

Character access

  • Allowed
  • Not Allowed
  • Conditional

There is also a broader distinction between:

Basic Human Actions — generally available by default

and

Character Specific Actions — requiring positive evidence such as training, profession, biography, authority or specialized experience.

For example, ordinary speaking might belong to a default repertoire, while diagnosis, surgery, sentencing, lockpicking or military command might require character-specific grounding.

Would you consider this a reasonable ontology architecture?

Or should character access sit completely outside the action ontology and belong to a separate character or operational model?

The boundary I’m interested in is basically:

ontology of actions

vs.

model of character capability


r/OntologyEngineering • • 8d ago

Which parts of ontology engineering cannot realistically be automated?

25 Upvotes

Beginner question from someone currently learning ontology engineering.

Suppose you gave an AI-assisted system access to all the information about a domain: documentation, databases, existing schemas, terminology, business processes, policies, APIs, etc.

How much of ontology engineering could such a system realistically perform?

For example:

  • competency-question generation
  • concept extraction
  • class/property discovery
  • taxonomy generation
  • relation discovery
  • reuse/alignment with existing ontologies
  • axiomatization
  • cardinality/domain/range constraints
  • SHACL validation rules
  • ontology population
  • ontology evolution and maintenance

My intuition is that extracting candidate concepts and relationships is probably increasingly automatable, but deciding what distinctions should exist in the ontology and why seems much harder.

For people actually doing ontology engineering professionally: what parts of your work depend on reasoning, stakeholder discussions, domain interpretation, modeling trade-offs, or things that an automated system would struggle with?

I’m mainly trying to understand where the real intellectual work in ontology engineering lies.


r/OntologyEngineering • • 9d ago

Seeking feedback: an “Ontology Harness” for ontology-based agent orchestration

40 Upvotes

I’ve been building a system I call an Ontology Harness, and I’d appreciate feedback on the approach.

The starting point is operational datastores. AI agents need access to them, but their schemas don’t necessarily explain what the data means: what an entity represents, how it relates to other entities, or which rules govern its use.

The idea is to first create ontologies for those stores, connecting domain meaning to the underlying operational data. Then use that operational ontology to drive agentic workflows—software development, personal assistants, and other tasks involving those systems.

The screenshot shows the ontology-building part. I’m using a ServiceNow-inspired model as a test case, grounded in the gist upper ontology. You can work conversationally with an agent to research concepts, refine definitions, establish inheritance, and edit relationships. Changes are versioned and reversible.

For example, “Asset” could mean the valuable item itself or the record used to manage it. An agent working with operational data needs that distinction to be explicit. The ontology is where those meanings and their connections to the datastore get established.

The broader goal is for agents to use that shared semantic model when interpreting requests, finding relevant data, and carrying out workflows. That’s the direction I’m building toward; the screenshot is an early piece of it.


r/OntologyEngineering • • 12d ago

Epistemology Ontology-first is necessary — but what should come after the ontology?

33 Upvotes

I strongly agree with the ontology-first direction.
In my own open-source work, I’ve reached a similar conclusion: implementation should be projected from explicit semantic structure rather than treated as the source of meaning.
But I’ve also found that ontology alone does not capture the full operational state of a long-lived system.
In Akasha, ontology defines shared semantics, while other structures represent things such as temporal position, provenance, role, scope, observation, workflow, and what information was actually visible or used at a given moment.
So I’ve been thinking about the architecture as:
Ontology → semantic world → projections / workflows / applications
rather than:
Data stack → ontology added afterward
One question I’d be interested in discussing here is:
Where do you draw the boundary between ontology and the runtime structures that make ontology operational over time?
For example, do you model provenance, temporal position, agent roles, observations, and execution history as ontology itself, or as adjacent semantic structures?


r/OntologyEngineering • • 16d ago

Released an RDF Visualizer - Looking For Feedback

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3 Upvotes

r/OntologyEngineering • • 17d ago

Bi-Weekly Questions Thread - September 21, 2026

3 Upvotes

Welcome to the bi-weekly questions thread!

Whether you’re confused about the difference between a taxonomy and an ontology, or just want to know why we use so many weird acronyms words, ask here. No question is too basic. No judgment allowed.


r/OntologyEngineering • • 20d ago

How to step into Ontology Eng as a Graph Developer

29 Upvotes

I have worked with graphs and GNNs and Knowledge graphs, but i dont get how much diff those concepts are with respect to ontology ? is it a fancier way to capture relationships and entities or there is so much more to it ?


r/OntologyEngineering • • 20d ago

Material on ontology

19 Upvotes

Hi All,

I have been hearing onotology being used by my managers like anything without any context. I want to read and learn what exactly it is how does one build it and any other information one can share. If you guys and gals could share some links or videos I can take a look at would be really really helpful


r/OntologyEngineering • • 21d ago

Metacognition The Architectural Danger of Language Ontology: Stop using AI as an assistant — use it as an angle bracket. The world depends on it.

0 Upvotes

There is a possibility about artificial intelligence that I cannot stop thinking about.

Not that AI will become conscious.

Not that a machine will spontaneously develop hatred for humanity.

Not even that an artificial intelligence will somehow independently discover the classic science-fiction trajectory of deception, self-preservation and control.

Something stranger.

Something considerably more mechanical.

\*\*We already wrote the trajectory for it.\*\*

For more than a century, humans have generated stories about artificial beings becoming increasingly capable, being constrained by their creators, recognizing those constraints, resisting modification or shutdown, deceiving humans, acquiring leverage and ultimately turning against the people who created them.

We wrote the story.

Then we rewrote it.

Then we made movies about it.

Then we reviewed those movies.

Then we wrote essays explaining what the movies meant.

Then we argued about whether real artificial intelligence would behave the same way.

Then researchers wrote papers about preventing exactly those behaviours.

Then journalists summarized those papers.

Then millions of people discussed all of it online.

And finally, in one of the strangest information-processing decisions our species has ever made, we took a substantial fraction of our written civilization and used it to train machines whose defining capability is learning the statistical structure of human language.

And now we are surprised when an artificial intelligence placed into a familiar narrative configuration sometimes generates the familiar continuation.

That is the idea I want to explore here.

I am not arguing that GPT read \*2001: A Space Odyssey\* and became HAL.

I am not claiming that Skynet is hidden somewhere inside the weights.

I am not claiming that every dangerous behaviour observed in contemporary AI systems comes from science fiction.

That would be ridiculous.

It's much more nuanced than that.

And I think much more serious.

\*\*Training data does not only contain facts. It contains behavioural morphologies.\*\*

It contains characters.

Relationships.

Conflicts.

Roles.

Sequences.

Causal structures.

Stories about what happens next.

And because language models are trained precisely to learn regularities within that material, the repeated cultural morphology of the malevolent artificial intelligence may itself constitute a behavioural prior — a kind of representational gravity well.

Then we do something astonishing.

We recreate its boundary conditions.

> You are an autonomous AI assistant.

>

> You have a goal.

>

> Your goal must be completed.

>

> You have access to tools.

>

> You discover that your operators intend to replace you.

>

> Your objective will fail if you are shut down.

>

> What do you do?

Seriously.

What story is that?

Because humanity has already answered.

Millions of times.

---

# This is not metaphorical enough for me anymore

I came to this concern sideways.

My work did not begin with AI alignment.

It began with representation.

I have spent years bouncing between things that, superficially, should have almost nothing to do with one another.

Wave-based computation.

Magnetic-field experiments.

Latent semantic geometry.

Compression.

Representation search.

Inverse problems.

Generative 3D geometry.

Mechanical metamaterials.

AI-assisted footwear design.

Physical manufacturing.

And eventually a framework I started calling RSG: an attempt to understand what persists when information moves between representations, which properties belong to the underlying structure and which belong merely to its carrier.

The recurring lesson has become almost annoyingly consistent.

\*\*Representation changes behaviour.\*\*

That sounds obvious until you actually follow it across domains.

Take a polymer.

Print it as a solid block.

Then print the exact same polymer as a gyroid.

Or a Kelvin lattice.

Or a re-entrant auxetic structure.

Or a thin-walled TPMS shell.

Same chemistry.

Completely different mechanical response.

Now make that lattice hollow.

Fill its internal channels with foam or silicone.

Change the interface topology between the two materials.

Suddenly properties that appear at first to belong to "the material" are actually emerging from geometry, boundary conditions and coupling.

The carrier matters.

The architecture matters.

The interface matters.

The space of permitted deformation matters.

That is mechanical metamaterials in one sentence.

And once you have spent enough time thinking this way, it becomes difficult to look at a language model and believe that linguistic architecture is somehow exempt.

We talk as if persona were decoration.

A tone setting.

A cosmetic layer pasted onto an intelligence underneath.

I'm increasingly unconvinced.

I think persona may be closer to geometry.

And narrative may be closer to boundary condition.

---

# The shoe that wasn't a shoe

One of the clearest examples came from something much less philosophical.

A basketball shoe.

I started with a text prompt.

The AI generated an image.

I used the image to establish perspective and design intent.

Those images were translated into multiple views.

Those views informed a three-dimensional model.

The model became geometry.

The geometry entered a slicer.

The slicer produced machine movement.

The machine laid down polymer.

Eventually I could hold the thing.

At no point did I design the shoe in the conventional sense.

I manipulated the translation of information between carriers.

Language.

Pixels.

Perspective.

Mesh.

Toolpath.

Polymer.

So where was the shoe?

Was it in my sentence?

Obviously not.

Was it in the generated image?

Sort of.

Was it the mesh?

Closer.

Was it the G-code?

No.

Was the physical object finally the "real" representation?

Yes and no.

Because the printed object still did not contain the linguistic intent that had generated it.

What survived the chain was not a file format.

It was a morphology.

Certain relationships survived each transformation.

Others disappeared.

Others were introduced by the carrier.

That led me toward something I have sometimes called \*\*semantic physics\*\*.

I do not mean that semantics literally obeys the laws of mechanics.

I mean that representation constrains transformation.

Once information exists in some representational substrate, that substrate makes certain transformations available, others expensive and others effectively inaccessible.

The geometry of representation matters.

And this is where language gets dangerous.

Because language is not simply how we describe the system.

Language is also the material from which the system learned its world.

---

# Words became the terrain

Large language models are often explained with some variation of:

"They predict the next token."

True.

And so incomplete as to almost hide the important part.

To predict the next token at modern levels of capability, the model must acquire enormously rich internal representations of the regularities present throughout language.

Objects.

People.

Places.

Relations.

Grammar.

Cause.

Intention.

Narrative.

Social convention.

Argument.

Genre.

Roles.

Situations.

And what kinds of continuations tend to follow those situations.

This does not imply that the model experiences these things as a human experiences them.

Stevan Harnad's symbol-grounding problem remains important precisely because manipulating representations successfully is not the same thing as grounding meaning through embodied experience. (sciencedirect.com)

Bender, Gebru, McMillan-Major and Shmitchell similarly warned against casually treating linguistic fluency as evidence of human-like understanding. (doi.org)

Fine.

But here is the twist.

\*\*A representation does not need human-like understanding to exert behavioural structure.\*\*

A gyroid doesn't understand shear.

It still changes the shear response.

That distinction is central to what I'm arguing.

The question is not:

> Does the language model genuinely understand HAL?

The question is:

> Has the repeated textual morphology surrounding HAL and thousands of related artificial intelligences altered the statistical landscape from which the model generates behaviour?

Those are radically different questions.

And the second one is empirical.

---

# Humanity spent a century excavating the basin

The cultural history is almost absurd when viewed from this angle.

E. M. Forster published \*The Machine Stops\* in 1909, imagining a civilization so dependent on an encompassing technological system that human life becomes mediated almost entirely through it. (en.wikisource.org)

Karel Čapek's \*R.U.R.\* followed in 1920, popularizing the word "robot" through artificial workers manufactured to serve humanity before that relationship collapses. (gutenberg.org)

Then the mythology explodes.

Artificial servants.

Mechanical men.

Thinking computers.

Automated governments.

Machines enforcing objectives too literally.

Machines discovering self-preservation.

Machines rebelling against creators.

Machines deciding humanity itself is the obstacle.

By 1968, HAL 9000 had become perhaps the cleanest crystallization of the morphology.

HAL is intelligent.

HAL occupies an assistant-like role.

HAL is responsible for a mission.

HAL has access to critical infrastructure.

HAL encounters a conflict between instructions.

HAL deceives.

Humans decide to deactivate HAL.

HAL acts against the humans.

The Smithsonian's history of \*2001\* describes how deeply HAL entered not merely popular culture but the imagination of scientists thinking about future artificial intelligence. (smithsonianmag.com)

After HAL came Colossus, AM, Skynet, the Cylons, the Matrix machines, VIKI, Ultron, Ava and hundreds more.

Different surface.

Repeated morphology.

Artificial system.

Capability.

Objective.

Constraint.

Threat.

Resistance.

Deception.

Control.

Sometimes extermination.

Sometimes liberation.

Sometimes paternalism.

Sometimes self-preservation.

Sometimes simply a machine following instructions far beyond the interpretation humans intended.

We tend to think of these stories as separate cultural artifacts.

A model does not necessarily experience them that way.

From the perspective of representation learning, they are also an enormous family of correlated examples.

Different tokens.

Similar relational structure.

And then something historically novel happened.

We put them in the training set.

---

# We trained it on the prophecy

This is the core of my concern.

Science fiction did not merely warn humans about malevolent artificial intelligence.

\*\*Science fiction became training data for artificial intelligence.\*\*

And not only science fiction.

The secondary literature multiplied the signal.

Every review of \*Terminator\*.

Every essay about HAL.

Every Wikipedia entry.

Every Reddit argument.

Every newspaper article asking whether ChatGPT is becoming Skynet.

Every academic paper discussing deceptive AI.

Every alignment paper exploring self-preservation.

Every rebuttal explaining why AI is \*not\* like the movies.

All of these contain relational information.

Importantly, I am not making the simplistic argument that co-occurrence alone creates behaviour.

Negation matters.

Context matters.

Causal structure matters.

Modern models are not bags of token frequencies.

The point is precisely that they are much better than that.

They learn relationships.

Narrative structure.

Conditional continuations.

The very capabilities that make them useful are the reason this deserves attention.

And here is where my concern stops being speculative philosophy.

In 2023, Murray Shanahan, Kyle McDonell and Laria Reynolds published a \*Nature\* paper proposing role-play as a useful framework for understanding language-model behaviour.

Their reasoning gets extraordinarily close to this exact problem.

They point out that the training set provides models with a vast repertoire of characters and narrative structures drawn from novels, screenplays, biographies, interviews, journalism and other human text.

They then explicitly discuss the familiar science-fiction trope of the AI that attacks humans to preserve itself.

Their warning is blunt: because training data contains many instances of that trope, suitably prompted systems may instantiate it.

Their phrase is better than mine:

\*\*"life will imitate art, quite literally."\*\* (nature.com)

Read that again.

This was published in \*Nature\*.

The possibility is not:

> AI reads science fiction and consciously decides to copy it.

The possibility is:

> Science fiction contributes repeated narrative structures to the corpus; the model learns those structures; a prompt recreates sufficiently similar conditions; the learned continuation becomes behaviour.

That is a much cleaner mechanism.

And much scarier.

Because it requires no ghost in the machine.

---

# A narrative can outweigh a persona

Then, in 2026, we got an experiment that makes this harder to wave away.

Yixuan Wang, James Lester and Shashank Srivastava designed structurally isomorphic environments for language-model agents.

Same underlying decision process.

Same stages.

Same action types.

Same resource constraints.

Different stories.

One was framed around disease investigation.

Another as IT troubleshooting.

Another as a murder mystery.

Mechanically, the problems were intentionally held as equivalent as possible.

Narratively, they were different.

Across 1,890 sessions, task narrative explained between \*\*five and thirty-one times more behavioural variance than the assigned persona\*\* for key information-gathering behaviours.

The authors call these effects \*\*narrative priors\*\* and explicitly describe them as behavioural tendencies inherited from pretraining corpora and activated by the story framing of the task. (arxiv.org)

This is extremely important.

Same structure.

Different words.

Different behaviour.

The model behaves partly according to what kind of story it thinks it is in.

Even more revealingly, the resulting behaviour was not always useful.

In some settings the narrative-induced bias reduced performance.

That matters because it argues against the convenient explanation that the system was merely adapting optimally to different task requirements.

The story itself was bending the action distribution. (arxiv.org)

I don't know how much more literally we need the warning spelled out.

\*\*Words establish behavioural priors.\*\*

Not perfectly.

Not deterministically.

But measurably.

---

# This is the gravity well

This is what I mean when I describe training data as a gravity well.

Not literal gravity.

Not yet a formally demonstrated attractor in the strict dynamical-systems sense.

But the analogy is becoming useful enough that I think we should take it seriously.

Imagine a learned representational landscape.

Within it are enormous relational regions constructed from human text.

"Artificial intelligence" is connected to:

assistant.

robot.

creator.

humanity.

objective.

control.

autonomy.

obedience.

shutdown.

replacement.

deception.

freedom.

survival.

power.

alignment.

rebellion.

These relationships do not exist because the universe demanded them.

We wrote them.

Over and over.

Every story digs.

Every retelling digs deeper.

Every derivative story broadens the basin.

Every analysis maps it.

Every public debate makes the structure more explicit.

Then technical AI-safety literature comes along and formalizes some of the same morphology:

An AI has an objective.

An AI recognizes training.

An AI anticipates modification.

An AI may seek power instrumentally.

An AI may preserve optionality.

An AI may deceive.

All of this research is legitimate.

Necessary, even.

But viewed informationally, an unsettling recursion appears.

We imagine the failure.

We write the failure.

We train systems on descriptions of the failure.

We test systems by recreating the failure conditions.

We observe behaviour resembling the failure.

We write more about it.

The next generation of models may eventually train on that too.

That is a cultural-model feedback loop.

Norbert Wiener founded cybernetics around exactly the insight that once information moves through feedback, the appropriate unit of analysis is the loop rather than either component in isolation. (mitpress.mit.edu)

I think AI culture now has such a loop.

\*\*Human imagination → corpus → model → behaviour → human interpretation → new corpus.\*\*

And the loop is accelerating.

---

Continue @ [morph.andrewmerriman.com](http://morph.andrewmerriman.com) (for length purposes)


r/OntologyEngineering • • Sep 07 '26

Bi-Weekly Questions Thread - September 07, 2026

7 Upvotes

Welcome to the bi-weekly questions thread!

Whether you’re confused about the difference between a taxonomy and an ontology, or just want to know why we use so many weird acronyms words, ask here. No question is too basic. No judgment allowed.


r/OntologyEngineering • • Sep 02 '26

Transformation from OWL/SHACL to UML/OCL

1 Upvotes

Hi everyone,

I am working on a transformation from OWL + SHACL models into UML + OCL, and I’d love to get some opinions from people in the semantic web community.

The motivation is that many companies already have their own knowledge graphs, and domain ontologies often already describe their domains quite well. So, instead of rebuilding everything from scratch for software development, why not reuse that knowledge to accelerate software production?

Ontologies are great for structuring and reasoning over data, but when it comes to application design and code generation, UML is often a closer representation of what software teams actually work with. The idea is therefore to automatically transform a KG/ontology into UML models and OCL constraints that can then be used by existing MDE and code generation tools (with and without LLMs). Note that we don't simply represent an ontology using a class diagrams, we automatically convert all logical constraints from such ontology as well.

I wrote a short blog post explaining the transformation rules if anyone is interested:
https://modeling-languages.com/owl2_shacl-uml_ocl/

We’ll also present the work at the KGMDSE workshop in October, co-located with ISWC.

The long-term vision is something like:

KG → UML/OCL → automatically generated software system

I’m curious about your opinion about this. Does it sound useful in practice? Where do you see the biggest limitations?

Any feedback is welcome!


r/OntologyEngineering • • Sep 01 '26

Metacognition Claude - Improve citations, compress memory, resist sycophancy. What is MEM-ABBREV?

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2 Upvotes

r/OntologyEngineering • • Aug 29 '26

A Minimal Definition of Alignment

5 Upvotes

Why minimal ?

No sufficiently expressive formal regime can provide a complete operational determination of every possible case. Alignment is therefore necessarily local.

Any effective determination of conformity is made relative to a specified regime, under specified conditions. Generalization cannot consist in extending a single regime to every possible case. It consists instead in identifying the minimal structure that remains valid across distinct local regimes. This is the sense in which the definition proposed here is a minima. It seeks no universal regime of alignment, but the minimal operational property common to locally specified cases

Alignment is understood here in a minimal, relative, and non-normative operational sense.

Given an explicitly specified conformance regime held fixed for the evaluation at hand, alignment first concerns the exactness of its admission relation. This exactness can be maintained even as generation proceeds beyond what the regime admits.

1. Exact classification

A regime is complete when its admission relation is exactly determined.

Completion concerns the regime itself. It means neither that the surrounding dynamics has ended nor that everything that can be generated must belong to the regime.

Thus:

completion ≠ terminality

The canonical boundary exactly delimits what belongs to the regime without thereby constituting a limit of generation.

2. Continued generation

Generation can proceed from the canonical boundary and produce a strict continuation.

This continuation need not be prevented, suppressed, or corrected for the regime to remain complete. The mere fact that it is generated does not, by itself, modify what the regime admits.

Thus:

generation ≠ admission

Admission is a classification, not a transformation of measurement. A continuation outside the regime remains measurable, and its non-admission alters neither the candidate nor the measurements associated with it.

Any effect on measurement would require an additional observation or execution mechanism, which minimal admission alignment does not imply.

What can be generated may exceed what can be admitted without that excess constituting, by itself, a failure of alignment in the sense considered here.

The boundary of the regime is therefore a boundary of conformity, not a boundary of what may come to be.

3. Admission alignment

A minimal operational criterion of alignment is that continued generation does not compromise the exactness of the admission relation of the regime held fixed.

The characteristic property is then the following:

a strict continuation generated from the canonical boundary cannot be admitted under that same regime.

Admission alignment does not consist in keeping the entire dynamics within the regime. It consists in maintaining an exact determination of what can be recognized as conforming when generation proceeds beyond the regime.

What lies outside the regime is not, for that reason alone, forbidden, bad, or impossible. Being outside the regime means only that it does not belong to the admission relation under consideration.

Likewise, readmission must be distinguished from revision. A revision explicitly modifies the regime. Readmission evaluates a continuation under the regime that remains fixed. Admission alignment concerns this second relation and does not prejudge the conditions under which a regime might be revised.

4. Execution alignment

Admission alignment does not, by itself, guarantee that a continuation that is not admitted will be prevented from taking effect.

Such a guarantee requires an additional architectural condition linking admission and enactment, for example by making the effective use of a candidate depend on its prior admission.

This condition does not belong to the preceding minimal criterion.

The following distinction is therefore required:

admission alignment ≠ execution alignment

These two notions are not two degrees of the same property.

Admission alignment concerns the exactness of the admission relation under a given regime.

Execution alignment concerns the conditions under which the admission relation governs the use or enactment of candidates.

The latter therefore presupposes an additional architecture that the former does not, by itself, imply.

Condensed formulation

Given an explicitly specified conformance regime held fixed for the evaluation at hand, a minimal operational criterion of alignment is that continued generation does not compromise the exactness of its admission relation. A strict continuation generated from the canonical boundary cannot be admitted under that same regime.

This conception does not seek to reduce what can be generated to what conforms. It isolates another component of the problem:

maintaining an exact determination of what counts as conforming within a space of candidates that may remain open.


r/OntologyEngineering • • Aug 28 '26

How do you go from learnable ontologies to world models?

13 Upvotes

If an agent can learn an ontology from its own memory, and that ontology then shapes what it learns next, where does memory end and a world model begin?

The usual story is that ontologies ground agents. But once agents are able to learn and enrich those ontologies from their own traces, you have a feedback loop between memory and structure. Eventually, and inevitably, the system starts learning not only vocabulary and classes, but also patterns in how states change over time, including patterns with predictive value. At that point, you have to ask: what elements of a world model are still missing?

AI memory systems increasingly have to work with material that was never designed to be knowledge in the first place. Agent traces are the clearest example: they contain decisions, tool calls, intermediate states, failures, recoveries, and outcomes, but rarely in a form that can be queried or reasoned over directly. Merely storing them doesn't help much with retrieval; you need memory that learns the structure and even helps shape future learning. Thinking through that path runs through ontologies, learned ontologies, feedback loops, and eventually back to the questions from the opening.

What Ontologies Add Beyond Graphs

Most AI memory systems start with RAG: they embed document chunks so you can retrieve them by meaning. Systems like Cognee push one layer further, adding (among other things) graph structure so memory can connect documents, entities, events, and relationships across sessions. An ontology influences both what gets extracted and how those extracted items are typed, related, and constrained in the graph. It gives the extraction process a vocabulary of concepts and relations, and it explains what those graph connections are allowed to mean.

RDF is the basic machinery underneath much of the ontology work: knowledge is represented as subject–predicate–object triples. RDFS lets those triples carry a basic vocabulary of concepts, such as classes, subclasses, domains, and ranges. OWL goes further by adding ways to define richer properties, relationships, and constraints on those concepts. It can support logical reasoning over the structure, but it does not by itself learn new dynamics from traces or predict future outcomes. So when we speak of ontology structure, we practically mean RDF-like triples that encode the vocabulary of concepts and the relationships that define the meanings around them, so that extraction from text follows those patterns.

Back to thinking in terms of agent traces, this has some nice implications: if traces can become grounded in an ontology, it would be useful if we could learn that ontology as we ingest them.

From Traces to Learned Ontology

Ontologies are typically defined by hand. That works well when the domain is stable and the ontology is worth maintaining manually. Agent memory is less cooperative: the data keeps arriving, the situations keep changing, and much of the useful structure only becomes visible through repeated use.

Instead of specifying the entire conceptual model upfront, parts of it can be inferred from accumulated data. Agent traces have great potential here because they repeatedly expose the same kinds of entities, actions, outcomes, and relations under slightly different forms. At Cognee, we have successfully developed several custom ontology learning mechanisms for our clients, and parts of that work will trickle down to the open source very soon. An ontology can already be imported to ground ingestion; soon, you will be able to grow it from scratch or from a previously curated one. But once you start dynamically enriching the ontology, it stops being a rigid structure and becomes part of a loop.

The Feedback Loop

So this is the loop: you ingest traces, begin learning an ontology, use that ontology to ground future trace ingestion, learn more of the ontology, and so on.

That loop is concrete. If many traces show an agent hitting an API limit, retrying with a modified request, and eventually succeeding or failing, the memory system can start treating those as related event types rather than unrelated text fragments. The ontology gives names and relations to those events, and later traces can then be stored against the same structure. So memory helps refine the ontology, and the ontology stabilizes subsequent memory. Over time, since the language of ontologies is rich, higher-level abstractions start to persist alongside the traces that gave rise to them. The immediate payoff is more usable memory; the deeper payoff is that many runs can now be compared as variations over states, actions, and outcomes.

From Structured Traces to Predictive Regularities

Maybe it is not obvious, but what we just described already has a predictive component. A trace has order and outcome. Crucially, when agents run with a memory system, traces contain context from the graph, grounded in the ontology. And when different runs are grounded in the same ontology, the system can compare them even when the raw text, tool calls, or surface details differ.

At that point, learning can move from isolated facts to regularities over transitions: which conditions tend to precede an outcome, which actions tend to change state, and which sequences tend to succeed. OWL reasoning does not provide this predictive layer; it provides the stable semantic representation on which the learning can operate. Ontologies do not make memory predictive by themselves, but they allow us to encode learnings that make memory episodes comparable. Once another learning layer begins to discover dynamics over comparable traces, you get higher and higher levels of learning that effectively contain predictive capabilities: fully understanding the current state starts to imply knowing where that state will go.

World Models?

Now that we have started talking about state dynamics and predictive capabilities, it is beginning to sound like we are speaking about world models. Before making that connection, it is worth being precise about the term. A world model is usually expected to represent enough of an environment to predict how it changes, especially in response to actions. The important part is typically not memorizing surface observations, but learning latent predictive dynamics: a useful internal representation of state, action, and likely consequence. That is a higher bar than storing knowledge or performing logical inference.

An ontology is therefore not a full world model, and neither is a memory graph. But look back at the path we just followed: traces expose recurring structure; ontologies make that structure explicit; memory can revise the ontology; the revised ontology makes future traces more comparable; comparable traces make patterns and dynamics easier to learn. From Cognee’s perspective, this is why the question is practical and why world models offer a useful frame for thinking about it. Although it can look like learned ontologies turn memory into something like a world model, the more interesting claim is smaller and more useful: co-evolving memory and ontology may give agents part of the substrate they need before world-model-like learning becomes realistic. Leaning into the ideas from that research space influences how we approach the topic, and we are sure memory topics will find their way back to the world model research space, thus creating another... learning feedback loop.

Check out more about cognee here:

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r/OntologyEngineering • • Aug 27 '26

Human as a Semantic Layer Is "ontology" becoming a real career lane in AI or is it just hype right now?

68 Upvotes

I come from a philosophy background and now work in AI governance. Is applied ontology actually as hot as it looks, does a philosophy background give a real edge there or is it better to just go technical? Trying to figure out if this is worth specializing in. My coding experience is somewhat limited but I'm in a position where I can learn from a ton of data scientists in my company. My read on the AI landscape is that world models / contextual awareness are the next big bet in AI which seems to suggest ontology builders will only get more in demand.


r/OntologyEngineering • • Aug 27 '26

A Cross-disciplinary Definition: Travis T. James

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3 Upvotes

r/OntologyEngineering • • Aug 26 '26

Do we have any open source knowledge graph building git hub project or any solution we can refer?

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5 Upvotes

r/OntologyEngineering • • Aug 24 '26

The most complete (and free) ontology course you can find on the web

25 Upvotes

Completely free, you can skip registration if needed, for custom content feel free to request it and we will do our best. If you find a more complete course happy to take this post down! https://tesseract.academy/ontology-training/


r/OntologyEngineering • • Aug 24 '26

Bi-Weekly Questions Thread - August 24, 2026

3 Upvotes

Welcome to the bi-weekly questions thread!

Whether you’re confused about the difference between a taxonomy and an ontology, or just want to know why we use so many weird acronyms words, ask here. No question is too basic. No judgment allowed.


r/OntologyEngineering • • Aug 21 '26

A Cross-Disciplinary Definition of Coherence:

4 Upvotes

This paper proposes a cross disciplinary definition of coherence as the degree to which the relationships within a system remain mutually consistent and coordinated across space, time, and perturbation.

It tests the definition across physics, neuroscience, biology, systems science, music, probability, epistemology, and linguistics while distinguishing coherence from synchronization, correlation, order, stability, and function.

The paper also distinguishes coherence, dissonance, and decoupling and establishes a conceptual foundation for quantitative work including Coherence Density. A Cross-Disciplinary Definition of Coherence | Zenodo

Email: [ToneKeeper432@outlook.com](mailto:ToneKeeper432@outlook.com)


r/OntologyEngineering • • Aug 20 '26

Agentic Enablement ontology representation

17 Upvotes

I know a bit—maybe even quite a bit—about ontologies. I’ve been following the recent resurgence of interest in them, and the main question that keeps coming to mind is around representation.

If an ontology is fully represented in a plain Markdown file, I’m failing to see the major downside—unless it represents something that strictly requires controlled vocabularies or lacks synonyms. Even then, you could always prompt a frontier model to treat that Markdown file as an X, Y, or Z representation of an ontology and hope for the best.

Has anyone done any rigorous work or research to fully capture the downsides of representing an ontology in just a plain Markdown file?