Confidential — Stefan Michaelcheck Only

Active Topological Learning (ATL): A Geometric Framework for Targeted Knowledge Injection in Small Language Models

2026methodological guidancenovelframework

Tania Swanepoel

Zenodo (CERN European Organization for Nuclear Research)

https://doi.org/10.5281/zenodo.18982007OpenAlex: W7135042952
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Abstract Quality
GPT-5.5 Abstract Analysis

Problems Identified (5)

Fine-tuning resource cost: Current fine-tuning approaches for small language models require large datasets and significant compute.

Fine-tuning knowledge degradation: Current fine-tuning approaches risk degrading existing model knowledge.

Targeted conceptual knowledge injection: The paper addresses how to insert targeted conceptual knowledge into pre-trained SLM embedding spaces.

Resource-constrained specialization: The paper raises the problem of enabling on-demand model specialization in resource-constrained deployments.

Fine-tuning resource cost: Current fine-tuning approaches for small language models require large datasets and significant compute.

Proposed Solutions (5)

Active Topological Learning: Active Topological Learning is proposed as a geometric method for targeted conceptual knowledge insertion in pre-trained SLM embedding spaces.

Conceptual void detection: ATL detects conceptual voids using the Quality Signal metric.

Angular manifold pre-survey: ATL measures existing manifold structure with Angular Pre-Survey.

Geometric micro-corpus design: ATL designs a geometrically derived Micro-Corpus for targeted training.

Anisotropic gradient masking: ATL trains only along identified load-bearing dimensions using anisotropic gradient masking.

Results (3)

Fast concept relocation:

No catastrophic forgetting observed:

Naive-query discoverability:

Research Domain

Small language models; targeted knowledge injection; embedding geometry

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