04.
Technical notes, postmortems, experiments.
Articles on Go, observability, multi-tenancy, infrastructure — everything I learn building production systems.
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#busca #cross-encoder #ia
Reranking with Cross-Encoders: the step that separates good search from excellent search
Hybrid search ranks by consensus, and consensus isn't relevance. A cross-encoder reads the query and the document together and reorders your top 100. Third and final post in the series on modern search.
·19 min· 17
#busca #elasticsearch #embeddings
Hybrid Search with RRF: why the best systems combine BM25 and vectors
BM25 and vector search fail in different places. Reciprocal Rank Fusion merges both rankings without you calibrating a single weight. Second post in a series on modern search.
·9 min· 28· 1
#busca #embeddings #machine-learning
Semantic Search: teaching machines to understand intent, not just words
BM25 still works, but it has four serious blind spots. Embeddings turn text into geometry — and that's the foundation of everything that's hyped in AI today. First in a series on modern search.
·13 min· 347· 4