I appreciate your request, but I don't have any context provided about "Template:User tr-4" to base an overview on. Without factual information about what this template is and why it matters, I cannot accurately write the overview you've requested, as doing so would require me to invent facts—which you've asked me not to do. If you could provide the context or source material about this template, I'd be happy to write the overview.
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Usage
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).