Knowledge Base Retrieval for Compulsory Education Dropout Prevention: Coordinate Operations and Application Handover

Dropout Prevention: review retrieval for operational handover. Check source versions, input mappings and the values received by downstream nodes.

What this category's data looks like

Compulsory education dropout prevention and reengagement materials include dropout risk ledgers, reengagement records, and home visit records, with fields covering student name, student ID number, risk level, reengagement date, home visit date, signature, and receipt. The materials come from schools, townships, and county-level education departments, and the update cadence is centralized screening at the start of the semester, dynamic supplementary entry during the semester, and summary verification at the end of the semester. When entering the knowledge base retrieval and recall function, the dropout risk ledger provides risk subjects and level clues, the reengagement records provide the basis for the reengagement process and results, and the home visit records supplement family communication and signature evidence. The three types of materials serve as candidate fragment sources in retrieval, and are used by subsequent nodes to generate a handover-ready deployment status and operation records. In terms of field characteristics, dates and signatures are the focus of verification, and the names, quantities, and dates of the same record in different materials must remain consistent.

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 upper-limit trimming). The handover-ready deployment status and operation records are completed by subsequent nodes or manually.

ObjectCheckVerification action
Dropout risk ledgerFields include student name, student ID number, risk level, date, and signature, and must be consistent with the names, quantities, and dates in the reengagement records and home visit recordsIn the search test, switch searchMode to semantic, full-text, or hybrid, compare candidate fragments and scores, and check whether the ledger fields and signature receipts are complete
Reengagement recordsDates and signatures must match the ledger and home visit records; when versions are not synchronized, the name or quantity of the same record will be inconsistentTest once each with synonym-rewritten questions, see whether the candidates include both semantic and full-text results, then toggle usingReRank to compare the ranking of the top few results
Home visit recordsHome visit dates, signatures, and receipts must be consistent with the ledger and reengagement records; if signatures or receipts are missing, they cannot serve as the basis for handoverAdjust similarity and limit, observe changes in the number of candidates and scores after similarity filtering, and separately record the referenced text tokens and array count

Three common errors

  • Symptom: The name, quantity, and date of the same record do not match between the ledger and the reengagement records. Cause: The materials are entered separately, versions are not synchronized, and no item-by-item verification was performed before handover.
  • Symptom: The home visit records lack signatures or receipts, but the handover form shows they are complete. Cause: The signature pages were not archived together with the materials, and verification only looked at the table of contents without checking the body text.
  • Symptom: The same question cannot be recalled when phrased differently, or there are many candidates but the top-ranked ones are all irrelevant. Cause: The retrieval mode does not match the material form, reranking is not enabled, or similarity filtering is too strict.

How to verify the setup

This function's acceptance: test once each with synonym-rewritten questions, compare candidates and scores, then toggle reranking to check the ranking of the top few results; verify the actual values of searchMode, similarity, limit, and usingReRank, and record the number of candidates and scores.

Business testing: verify item by item once according to the handover form, and see which record is missing; verify the fields, dates, and signatures of the dropout risk ledger, reengagement records, and home visit records, and confirm that the version, connections, and task records are consistent.

  • In the knowledge base search test, switch retrieval modes, compare candidate fragments and similarity scores, and separately record the referenced text tokens and array count.
  • Verify the fields, dates, and signatures of the ledger, reengagement records, and home visit records item by item according to the handover form; mark items missing signatures or receipts and supplement the entries.