3 papers
cs.IR2026
Lost in the Evidence? Reproducing Document Position and Context Size Effects in RAG
Jorge GabÃn, Anxo Perez, Javier Parapar
Retrieval-Augmented Generation (RAG) systems rely on retrieved documents being concatenated into a model's input context, making both document ordering and context size critical ye…
cs.CL2025
Who Is the Story About? Protagonist Entity Recognition in News
Jorge GabÃn, M. Eduardo Ares, Javier Parapar
News articles often reference numerous organizations, but traditional Named Entity Recognition (NER) treats all mentions equally, obscuring which entities genuinely drive the narra…
cs.IR2024
Beyond Questions: Leveraging ColBERT for Keyphrase Search
Jorge GabÃn, Javier Parapar, Craig Macdonald
While question-like queries are gaining popularity and search engines' users increasingly adopt them, keyphrase search has traditionally been the cornerstone of web search. This qu…