cs.IR · 2026-09-04 · No. 105

Information Retrieval, 2026-09-04.

3 new papers in cs.IR. Titles, authors, abstracts. Links to arXiv. Want this in your inbox every morning? Subscribe →

01 — The papers

3 entries
  1. 01

    Comparing Retrieval Methods for Academic Advisor Discovery: A Six-Method Study of 768 CS Faculty Profiles Across 9 US Universities

    Biraj Subedi

    cs.IR · cs.LG

    We present a comparative evaluation of six information retrieval methods for the task of academic advisor discovery: ranking CS faculty members by relevance to a graduate applicant's research interest statement. The methods span sparse lexical matching (Jaccard overlap, TF-IDF, BM25), dense semantic retrieval (all-MiniLM-L6-v2 sentence embeddings), hybrid score fusion, and learning-to-rank. Evaluation uses a new domain-specific collection:...

    arxiv.org/abs/2609.03901 · PDF

  2. 02

    EPIC: Explicit Posterior Item Conditioning for Semantic ID Diffusion Recommendation

    Tuan-Binh Tran, Thanh Tam Nguyen, Quoc Viet Hung Nguyen, Dung D. Le, Tung Kieu, Thanh Trung Huynh

    cs.IR · cs.LG

    Semantic ID (SID) generative recommendation predicts the next item by generating a short tuple of discrete tokens. Recent masked-diffusion methods improve this process through bidirectional context and flexible decoding, yet recommendation ultimately requires selecting among complete catalog items. At each denoising step, a partial SID can correspond to multiple feasible items, while existing methods primarily reason through position-wise...

    arxiv.org/abs/2609.03522 · PDF

  3. 03

    Plan Pointers and Record-Directive Form in Budgeted Verification of Inherited Agent Memory

    Kazuki Nakayashiki

    cs.IR · cs.AI · cs.CL

    An agent that inherits six one-line memories may pull at most one archived source record before acting; a directive written into the store can steer that choice: a pointer to the record, a criterion that identifies it, or both. Across twelve registered studies on one instrument lineage (14,760 attempts) we measured where the request goes under each form. On six direct-provider models a length-matched criterion exceeded a bare id by +35.0...

    arxiv.org/abs/2609.03450 · PDF

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