What this category's data looks like
The material system for self-funded study abroad application services centers on study abroad service contracts, school application forms, and personal statements, and extends to attachments such as transcripts, recommendation letters, proof of funds, and visa receipts. Material sources are scattered: contracts are signed by the service provider and the applicant, application forms are generated from school templates, and personal statements are finalized after multiple rounds of revision. The update cadence is driven by application seasons, school deadlines, supplementary document notices, and visa progress, and it is common for the name, quantity, and date of the same record to fail to match across two materials, for versions to be out of sync, and for signatures or receipts to be missing. When entering the knowledge base retrieval function, contracts and application forms take on the role of field verification, personal statements take on the role of narrative and citation, and attachments take on the role of receipt and date corroboration. Material versioning and change maintenance require the current version to be unique, old versions to be traceable, and citations to be synchronized; the retrieval step is responsible for recalling candidate snippets from these materials, providing the basis for the subsequent version ledger and change records.
Configuration and implementation checks
This step is executed by the knowledge base retrieval service (retrieval node and search test), outputting candidate snippets and similarity scores (after pattern, merge, rerank, filter, and limit trimming). The "version ledger and change records" are completed by subsequent nodes or manually.
| Object | Check | Verification action |
|---|---|---|
| Study abroad service contract | Whether fields, dates, and signatures are consistent with other materials, and whether the current version is unique | In the search test, use synonymous questions to retrieve contract clauses, check the number of candidate entries and scores under searchMode, and check whether signature and receipt fields are hit |
| School application form | Whether the name, quantity, and date of the same record match across the two materials | Switch searchMode to compare semantic and full-text candidates, and check whether the application form fields in the returned snippets are consistent with the contract fields |
| Personal statement | Whether the old version is traceable when versions are out of sync, and whether citations are synchronized | Compare the ranking of the top few entries before and after enabling usingReRank, record the similarity score and the number of candidate entries, and check the tokens of the cited text |
| Transcripts and proof of funds | Whether dates, quantities, and signature receipts are complete, and whether citations are synchronized | Test once each with synonymous questions, observe the number of cited entries and content completeness after limit trimming, and record the array length separately |
Three common errors
- Symptom: The name, quantity, and date of the same record fail to match between the contract and the application form. Cause: The materials are updated independently, lacking a unified field verification and version synchronization mechanism.
- Symptom: The old version of the personal statement is still recalled, and the cited content is inconsistent with the current version. Cause: Versions are out of sync, the old version is not marked as invalid, and retrieval candidates are not filtered by version.
- Symptom: The contract or receipt lacks a signature, yet the retrieval result is still returned as a valid citation. Cause: The material status is not maintained in the knowledge base, and candidate snippets do not carry signature and receipt verification markers.
How to verify the setup
Acceptance for this feature: test once each with synonymously rewritten questions, compare candidates and similarity scores, then toggle usingReRank on and off to observe the ranking of the top few entries; record the number of candidate entries and the tokens of the cited text, and record the array length separately.
Business test: change one piece of content and see whether the version number and citations are updated in sync
- In the knowledge base search test, switch
searchModeto compare the number of candidate entries and scores across the semantic, full-text, and hybrid modes, and confirm that the material form matches the mode. - Check the number of cited entries and content completeness after
limittrimming, check the tokens of the cited text, and confirm that key passages have not been trimmed away.