What Data Looks Like for This Category
The data for IT service intelligent due diligence reports primarily comes from qualification filing documents submitted by partner IT vendors, past project delivery archives, compliance audit results, and operation and maintenance logs. Data updates are triggered in non-real-time batches when vendors complete qualification annual reviews or major project deliveries. Each individual report has a fixed document structure, including fields such as vendor main body information, service coverage scope, past project list, compliance check items, technical parameter details, and more. Most field units use standardized measurement units like year, count, item.
What Constraints These Characteristics Impose on Knowledge Base Retrieval and Recall
The multi-source and scattered sources of IT service due diligence reports require the retrieval link to support field alignment matching across vendor documents, to avoid redundant recall of duplicate qualification content. The non-real-time batch update rhythm requires the recall link to associate document update time fields to filter expired data. Individual reports have long length and fixed field structures, requiring segmented retrieval to split by independent fields such as compliance items and project lists, to avoid mixing irrelevant cross-field content in recall results. Standardized field units can be used to quickly filter candidate documents that do not meet measurement requirements.
Configuration Settings
| Configuration Item | Recommended Value Range | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Core fields of IT service due diligence reports, such as compliance check items and project lists, are mostly medium-to-long professional texts. This segment length preserves complete semantics of single fields and avoids semantic fragmentation. |
topK | Top 8–12 results | Individual due diligence reports have detailed content. Too many recall results cause redundant context, while too few fail to cover all required compliance items and project records. |
similarityThreshold | 0.72–0.78 | Due diligence reports contain a large number of IT service professional terms. This threshold balances recall precision and coverage by filtering low-match irrelevant documents. |
rerankTopN | Top 3–5 results | Core verification needs for due diligence reports focus on compliance and past performance. A small number of high-match results can meet retrieval requirements. |
PARSE_FILE_TIMEOUT_SECONDS | 300–600 seconds | Individual packaged due diligence report documents have large file sizes, requiring longer parsing time. This timeout setting prevents mid-process interruptions. |
UPLOAD_FILE_MAX_SIZE | 500–1000 MB | Supports batch packaged upload of multiple due diligence reports, adapting to industry scenarios where vendors submit qualification documents in bulk. |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- Symptom: The reranking model has been configured in the knowledge base backend, but the reranked sort order is not displayed in question and answer return results, or
rerank_resultis shown as false in logs. Cause: The reranking function switch was not enabled during the retrieval link, or the specified reranking model was not associated with the currently used knowledge base node. - Symptom: In a local deployment environment, an error occurs when uploading due diligence report files indicating the file exceeds the size limit, or only some files are recognized after batch upload. Cause: The
UPLOAD_FILE_MAX_SIZEparameter was not adjusted to a value suitable for bulk documents, or the local storage quota was not updated synchronously. - Symptom: When calling knowledge base variables in a workflow, no optional parameter drop-down list is available, or global variables cannot be read by the knowledge base retrieval node. Cause: The global variable reference permission was not enabled in the knowledge base configuration, or the variable was not bound to the scope of the current workflow.
How to Verify Successful Configuration
- Upload a test IT service intelligent due diligence report document, and check that the parsed segments are split by fields such as compliance items and project lists, with no cross-field semantic confusion.
- Initiate a test query containing specific compliance check items, and verify that the number of candidate documents returned by retrieval falls within the preset value range.
- After enabling the reranking model, compare the original retrieval results with the reranked sort order to confirm the reranking logic has taken effect.
- Add a knowledge base retrieval node in the workflow, and check that the variable selection drop-down list can normally load globally and locally configured variable parameters.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.