What the Data for This Category Looks Like
Special steel investment research data mainly comes from ex-factory quality inspection reports of steel mills, circulation data from national special steel industry associations, listed quotes for special steel varieties on futures exchanges, special steel process patent documents from the National Intellectual Property Administration, and procurement requirement announcements from downstream equipment manufacturing enterprises.
Update rhythm: Ex-factory quality inspection reports are updated in real time with production batches. Industry circulation data is released weekly. Spot quotes are updated per trading day. Patent documents are updated in real time as applications are published.
Document structure is divided into three categories:
- Production documents include heat lot number, material grade, mechanical performance parameters, and delivery specifications.
- Industry documents include product capacity, regional circulation volume, and downstream application proportion.
- Intellectual property documents include application identifier, technical field, and core process description.
Field units: Mechanical performance parameters use megapascals, length parameters use millimeters, and weight parameters use tons.
Constraints Imposed by These Characteristics on the "Citation Source and Traceability" Link
Special steel investment research data has scattered sources and significant format differences. Production batch data is bound to a unique heat lot number. For traceability, the heat number and corresponding quality inspection document must be accurately matched. Effective traceability cannot be achieved through general document matching.
Update frequencies vary widely across different data sources. Spot quotes are updated daily, while industry data is updated weekly. During traceability, the update time of each source must be marked to avoid citing expired data.
Core special steel parameters are scattered across different paragraphs of documents. The claims section of patent documents is the core citation content. During traceability, it is necessary to locate specific paragraphs, not entire documents.
Additionally, one special steel grade corresponds to multiple production batches. During traceability, the corresponding relationship between grade, batch, and quality inspection report must be associated to avoid confusing performance parameters of different batches.
Configuration Settings
| Configuration Item | Recommended Approach | Rationale |
|---|---|---|
Recall TopK | Top 8-12 entries | Special steel investment research data is scattered. A sufficient number of candidate documents must be retrieved to cover multi-source data and avoid missing key parameters |
Similarity threshold | 0.75-0.85 | Special steel parameters have high precision requirements. A threshold that is too low will introduce irrelevant data, while a threshold that is too high will miss valid matching sources |
Text Chunk Size | 1000-1500 characters | Parameter paragraphs in special steel quality inspection reports are mostly 500-1200 characters long. The segment length adapts to the natural boundaries of parameter paragraphs |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Large special steel industry reports or patent documents take a long time to parse. Avoid interrupting parsing due to timeout |
Citation Source Anchoring Precision | Paragraph level | Core special steel parameters are scattered across document paragraphs. Accurately locate specific cited paragraphs instead of entire pages or documents |
Data Source Update Time Sync | Enabled | Special steel data has widely varying update frequencies. Mark the update time of each source to avoid citing expired spot quotes or industry data |
The parameter values provided on this page are all conventional recommendations used to determine the starting point for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require specific analysis. It is recommended to test on your own samples before finalizing values.
Three Common Misconfigurations
- Phenomenon: Redundant file reference links are displayed at the bottom of reply content, which does not meet the concise typesetting requirements of investment research reports. Cause: The full link display switch in
Citation source display方式is not turned off, and full link output is enabled by default. - Phenomenon: A
504 Gateway Timeouterror occurs when parsing large special steel industry reports. Cause:PARSE_FILE_TIMEOUT_SECONDSis not set to a value exceeding 300 seconds, and the parsing time of large documents exceeds the default threshold. - Phenomenon: Retrieved citation sources include expired spot quote data, which affects the timeliness of investment research conclusions. Cause: The data source update time synchronization configuration is not enabled, and documents with update times earlier than the current investment research cycle are not filtered.
How to Confirm Proper Configuration
- Initiate a query that includes a special steel grade and mechanical performance parameters. Verify that the cited sources in the reply are located to specific document paragraphs, not entire documents.
- Upload a large special steel industry report. Check whether the parsing task status is completed within the preset timeout period, with no timeout errors.
- Submit a query for recent spot quotes. Verify that the cited sources are marked with corresponding update dates and do not include expired data.
- Turn off the full link switch in
Citation source display方式, initiate a query, and confirm that only necessary source identifiers are displayed at the bottom of the reply, with no redundant links.
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.