Brian Keith-Norambuena

2 papers indexed

arxivcs.HCcs.CLcs.IR2026-06-29

Information Terra: A Narrative-Anchored Semantic-First Projection of Document Embeddings

Brian Keith-Norambuena, Fausto German, Chris North

We introduce Information Terra, a narrative-anchored semantic-first projection that places a document corpus on an Earth-like globe whose poles are two user-chosen endpoint documents and whose prime meridian is the great-circle geodesic between them on the embedding hypersphere -…

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arxivcs.ITcs.CLcs.IRcs.LG2026-06-28

An Information-Geometric Justification for Composite Coherence in Event-Based Narrative Extraction

Brian Keith-Norambuena

Graph-based narrative extraction relies on a coherence function to score transitions between events, but the coherence metrics in current use are defined operationally and lack an information-theoretic foundation. We study the composite metric $C=\sqrt{A\cdot T}$, where $A$ is th…

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