What the data for this category looks like
Photovoltaic financing daily report data primarily comes from National Energy Administration photovoltaic project record announcements, local Development and Reform Commission grid-connected project fund trend announcements, listed photovoltaic enterprise financing announcements, and bank green credit release ledgers. Updates occur daily. Each entry corresponds to the financing details of a single photovoltaic project. The document structure includes fixed fields: project entity name, record number, financing amount, fund provider type, financing purpose, landing region, planned grid connection time, and others. The financing amount unit is ten thousand RMB. Record numbers follow the national unified project coding rules. The release date is the current natural day.
What constraints these characteristics impose on the knowledge base retrieval and recall workflow
The daily update requirement means the retrieval system must support incremental update logic, to avoid excessive computing resource usage from full reindexing. Differences in data formats across multiple sources require the preprocessing step to complete unified field mapping, to prevent missing fields or inconsistent units during retrieval. Each entry includes structured fields like record number and financing amount, so retrieval must support both exact matching and fuzzy recall. For example, use the record number to quickly locate a single entry, or use financing purpose for topic-based recall. The regional attribute of landing regions requires support for filtering and recall by region, and must adapt to photovoltaic project naming conventions across different regions to avoid retrieval confusion.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunk_size | 800–1200 characters | Photovoltaic financing daily reports contain multi-field structured content. This segment length avoids splitting that would damage the integrity of project information, and adapts to the text length of single entries |
recall_top_k | Top 8–12 entries | The number of valid projects in a single photovoltaic financing daily report is typically around 10. This value range covers all relevant projects while avoiding irrelevant data |
similarity_threshold | 0.72–0.85 | Semantic matching for structured fields requires a relatively high threshold, to prevent accidental recall of non-photovoltaic domain financing data |
PARSE_FILE_TIMEOUT_SECONDS | 60 seconds | The parsing volume of a single photovoltaic financing daily report is moderate. This timeout setting prevents parsing tasks from blocking the overall indexing queue |
embedding_model | Calibrated based on actual testing | Photovoltaic financing daily reports contain a large number of energy industry-specific terminology, so a domain-adapted embedding model is required to ensure accurate semantic recall |
enable_incremental_sync | Enabled | Photovoltaic financing daily reports are updated daily. Incremental synchronization significantly reduces computing resource consumption from full index updates |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require targeted analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Mistakes
- Phenomenon: When generating a response, the large language model does not reference original text fragments returned by the database, and only outputs summarized content. Cause: The context splicing logic for retrieval results is not configured, and structured content returned by the database is not converted into RAG-compliant fragments.
- Phenomenon: Garbled characters appear in knowledge base recognition results after uploading an Excel or CSV file of photovoltaic financing daily reports. Cause: The file encoding format is not specified as UTF-8, or the file contains photovoltaic industry-specific symbols that the parsing module cannot recognize.
- Phenomenon: Calling the knowledge base API returns a
401 Unauthorizedstatus code, and the retrieval result is empty. Cause: A generic authentication key is used, and access permission for the corresponding photovoltaic financing daily report knowledge base is not bound.
How to Confirm Configuration Completion
- Run the incremental synchronization task, and verify that the index update log only shows newly added photovoltaic financing project data from the current day, with no full reindexing records.
- Enter the record number of a photovoltaic project for retrieval, and verify that the returned results include the complete field information of the corresponding project, and that the similarity score falls within the preset range.
- Upload a single photovoltaic financing daily report file, and verify that the parsed text has no garbled characters, and that field mapping matches the preset configuration.
- Call the knowledge base API with valid authentication parameters, and verify that the returned results include matching financing project fragments, with no authentication errors.
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.