What the data for this category looks like
Data for optoelectronics financing daily reports comes from four sources: public financing announcements of the Shanghai, Shenzhen, and Beijing Stock Exchanges, public disclosure documents from the National Equities Exchange and Quotations, and public summaries from third-party industry data platforms. Updates are released after each trading day closes, covering financing events disclosed on that day. Updates are delayed to the next trading day for non-trading days. Documents use a structured format. Each record includes these fields: 证券代码, 证券简称, 融资主体, 投资方机构, 融资金额, 融资轮次, 披露日期, 公告链接. Financing amounts are denominated in RMB ten thousand yuan. Some large financing amounts use hundred million yuan as the unit. 证券代码 must match the exchange’s coding rules.
What constraints do these characteristics impose on deployment and upgrade
Multi-source data format differences require configuring parsing adaptation rules for multiple data sources. This prevents data loss caused by inconsistent announcement formats. The trading-day update schedule requires tying timed tasks to exchange trading calendars. Do not use natural day cycles. This prevents invalid data generation on non-trading days. Structured field units and coding rules require configuring unified conversion and verification logic in the data preprocessing stage. This ensures consistent formatting for fields such as 融资金额 and 证券代码. Announcement link accessibility requires configuring timeout retry mechanisms. This prevents document parsing failures caused by invalid links. During upgrades, sync the industry classification tag library. This ensures that track classification of financing events matches the latest industry classification standards adopted by most institutions.
How to set the configuration
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Single announcement content for optoelectronics financing daily reports typically ranges from 1000 to 2000 characters. A 300-second timeout period is sufficient to complete parsing and avoid excessive waiting triggered by short content |
Recall count | Top 8 entries | The number of daily financing events for this category typically ranges from 5 to 15. Retrieving the top 8 entries covers all valid financing information for the day and avoids missing key data |
Similarity threshold | 0.75–0.85 | Keyword matching for financing daily reports needs to balance accuracy and recall rate. This interval filters irrelevant industry news and retains financing content directly related to optoelectronics |
Chunk size | 1000–1200 characters | Core information of a single financing announcement is concentrated around 1000 characters. This segment length ensures that key information is not split and improves retrieval accuracy |
UPLOAD_FILE_MAX_SIZE | 50 MB | A single financing daily summary file typically does not exceed 20 MB. This setting reserves sufficient space for batch upload and temporary caching scenarios |
SCHEDULE_CRON_EXPRESSION | 0 18 * * 1-5 | This setting adapts to Shanghai, Shenzhen, and Beijing Stock Exchange trading days (Monday to Friday). It triggers data synchronization tasks after daily market close and avoids generating invalid data on non-trading days |
The parameter values provided on this page are conventional recommendations used as a starting point for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require specific analysis, and testing on the samples used in the actual deployment scenario is recommended before finalizing.
Three common mistakes
- Phenomenon: Frequent
Request Timeouterrors and 504 status codes appear during conversations. Cause: No timeout retry mechanism configured for announcement links of optoelectronics financing daily reports. Timeouts are triggered directly when announcement links respond slowly. - Phenomenon: Financing information retrieved by the knowledge base includes content unrelated to the optoelectronics field. Cause: The
Similarity thresholdis set too low, causing financing information from irrelevant industries to be mistakenly retrieved. - Phenomenon: Financing daily report data is generated on non-trading days. Cause: The scheduled task uses a Cron expression based on a natural day cycle instead of binding to exchange trading calendars, leading to invalid data generation on non-trading days.
How to confirm the configuration is correct
- Manually upload a sample file of optoelectronics financing daily reports. Check if the core fields in the document parsing results are complete and match the actual content.
- Trigger a scheduled task. View the task execution logs. Confirm that the task starts on time on trading days and does not run on non-trading days.
- Initiate a retrieval query. Enter keywords related to optoelectronics financing. Check the number and relevance of the retrieved results. Adjust the corresponding configuration items as needed.
- Upload a test file close to
UPLOAD_FILE_MAX_SIZE. Confirm that there are no abnormal errors in the upload and parsing process.
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.