Reranking and Hybrid Retrieval for Vocational College Program Registration: Find Supporting Evidence

Vocational Programs: review reranking for evidence lookup. Check source versions, input mappings and the values received by downstream nodes.

What this category's data looks like

The filing materials for specialty settings in vocational colleges include three types: the specialty setting filing form, the talent demand justification, and the faculty and equipment list. The filing form contains the specialty name, code, program length, enrollment number, and signature fields; the justification materials contain industry position demand, survey date, and justification conclusion; the faculty and equipment list contains the number of teachers, title structure, equipment names, and number of units/sets. The three types of materials are maintained separately by the academic affairs office, secondary colleges, human resources, and equipment departments, and are updated by academic year or application batch. When entering this function, the filing form provides the specialty entries and version baseline, the justification materials provide the demand basis, and the faculty and equipment list provides the conditions basis; together, the three constitute traceable candidate sources. The field characteristics are the coexistence of names, quantities, dates, signatures, and receipts, and records with the same name across materials need to be aligned item by item.

Configuration and implementation checks

This step is executed by the reranking model in the retrieval service, which outputs the sorted candidates and reranking scores. The "traceable basis entries from the original text" are then completed by citation trimming and answer generation. Hybrid retrieval simultaneously runs the vector and full-text paths and merges the results; after merging, the scope is large and similarity filtering cannot be directly applied, so the reranking model is usually then used to sort and filter by reranking score.

ObjectCheckVerification action
Specialty setting filing formFields include specialty name, code, program length, enrollment number, signature, and date; the name, quantity, and date of the same record in the two materials must matchCheck whether the specialty name, code, and program length in the filing form and justification materials are consistent, check whether signatures and receipts are complete, and record the number of candidate entries and scores
Talent demand justificationFields include position demand, survey date, justification conclusion, and signature; the version must be current and synchronized with the filing formCheck whether the justification date is within the current version interval, compare the position demand with the specialty direction in the filing form, and check for missing signatures or receipts
Faculty and equipment listFields include number of teachers, title structure, equipment names, and number of units/sets; the quantity and date must be consistent with the filing form's criteriaCheck whether the number of teachers and equipment units/sets match the conditions filled in the filing form, and check whether the version is synchronized
Hybrid retrieval and rerankingBoth the vector and full-text paths are enabled and merged, and the reranking model is bound and used for sorting and filteringCheck the switches for both paths and searchMode in the search parameters, compare the ordering and scores before and after reranking, use usingReRank to confirm that reranking is in effect, filter by reranking score, and record the number of candidate entries

Three common errors

  • Symptom: The name or enrollment number of the same specialty does not match in the two materials. Cause: The filing form and justification materials are maintained separately by different departments, and cross-material field alignment has not been done.
  • Symptom: The date of the faculty and equipment list is earlier than the current filing form version. Cause: The versions are not synchronized, and old-version materials remain in the candidate sources and participate in retrieval.
  • Symptom: The filing form lacks a signature or receipt but is still treated as a basis entry. Cause: Material admission does not check signatures and receipts, and incomplete records are not removed during citation trimming.

How to verify the setup

Acceptance of this function: compare the order and scores of the first three items before and after enabling reranking, check the number of candidate entries and changes in reranking scores, and confirm that usingReRank is in effect and that similarity filtering is executed by reranking score.

Business test: ask a cross-material basis question, see whether the answer provides traceable sources, and check that the number of citations is the array length and that the tokens of the citation text are recorded separately according to the quoteMaxToken budget.

  • Check the switches for the vector and full-text paths and searchMode in the search parameters, and confirm that the results of the two paths have been merged and that candidates come from both paths.
  • Compare the ordering and scores before and after reranking, filter by reranking score, check the number of candidate entries and scores, and check the values of limit and similarity.