Knowledge Base Retrieval for International Student Admissions and Enrollment Records: Manage Authorized Access and External Services

What this category's data looks like

International student admissions and enrollment management involves materials such as admissions brochures, admission letters, and visa application forms. Admissions brochures contain majors, tuition, application deadlines, and signature fields; admission letters contain name, student ID, admitted major, and issue date; visa application forms contain passport number, entry date, and receipt signature. The materials are maintained separately by the admissions office and the enrollment office, with updates concentrated at the beginning of each semester and daily batch supplements. When entering the knowledge base retrieval and recall function, admissions brochures serve as a public basis for answering questions about majors and fees, while admission letters and visa application forms serve as restricted materials for identity verification and status inquiries. Field characteristics are multilingual, multi-version, with signatures and dates coexisting; the name, quantity, and date of the same record may be inconsistent across different materials. When versions are not synchronized or signature receipts are missing, retrieval candidate fragments will simultaneously show multiple sources, which need to be matched by visitor identity and visible scope before trimming.

Configuration and implementation checks

This step is executed by the knowledge base retrieval service (retrieval node and search test), outputting candidate fragments and similarity scores (after mode, merge, rerank, filter, and limit trimming). The externally available entry points and authorization scope are then completed by subsequent nodes or manually.

Three common errors

• Phenomenon: The name or date of the same student does not match between the admissions brochure and the admission letter. Cause: The two materials are maintained by different departments, versions are not synchronized, and both sources are recalled simultaneously during retrieval.
• Phenomenon: The visa application form lacks a signature or receipt, but retrieval still returns that fragment. Cause: The signature field was not validated when the material was ingested, and similarity filtering only matches text and does not recognize missing signatures.
• Phenomenon: The same question cannot be recalled when rephrased, or there are many candidates but the top-ranked ones are all irrelevant. Cause: Question optimization and reranking do not cover that phrasing, and no secondary sorting is performed after multi-path merging.

How to verify the setup

This function's acceptance: test once each with synonym-rewritten questions, compare candidates and scores, then toggle reranking to see the top few rankings; switch searchMode and usingReRank, and record the number of candidates and scores.

Business test: access once with a restricted identity, see whether the visible scope matches the setting, ensure unauthorized content is not visible, and when opening to parents or superiors, check the entry points and authorization scope.

• In the search test, retrieve the same question using semantic, full-text, and hybrid modes respectively, record the number of candidates and scores, and check whether both semantic and full-text results are included.
• Compare the top few order before and after enabling reranking, adjust similarity and limit, and confirm that cited text tokens and array item counts are recorded separately, not compared for equality.