What the Data for This Category Looks Like
Coking coal financial report data primarily comes from three sources: periodic financial disclosures of listed coking coal enterprises, monthly production and sales statistics reports from domestic coal industry associations, and port coking coal spot transaction ledgers. Two update cadences apply: quarterly enterprise financial reports, and monthly industry supply and demand data. Single documents include fields such as production scale, average sales price, inventory level, and downstream steel industry linkage data. Core indicator units include tons, yuan/ton, and percentage. Some documents also include coking coal quality grading parameters such as dry base ash content and sulfur content values.
Constraints on Vector Models and Indexing
The multi-source, layered update characteristics of coking coal financial reports impose multiple constraints on the vector models and indexing workflow. The difference in update cadence between quarterly enterprise financial reports and monthly industry data requires the index to support incremental synchronization mechanisms. This avoids computational overhead from full index reconstruction. Financial reports include multi-dimensional segmented fields such as production, price, and quality. Adapt vector models to multi-field mixed encoding to process structured indicators in addition to plain text content. Single documents are lengthy and include attached tables. Set reasonable chunking thresholds to avoid splitting key indicators across different segments. Data formats vary across sources. Implement a unified preprocessing workflow before entering the indexing stage to reduce retrieval noise.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
EMBEDDING_MODEL | bge-large-zh-v1.5 (compatible with v4.8.21-fix version) | Adapts to Chinese coal industry professional terminology, enabling accurate encoding of segmented indicator descriptions related to coking coal |
CHUNK_SIZE | 800–1200 characters | Coking coal financial reports include long-text indicator descriptions and attached table content. This range preserves correlation between indicators |
RECALL_TOP_K | Top 8–12 results | Core indicators of coking coal financial reports are concentrated in distribution. Excessive recall will introduce irrelevant non-core data |
SIMILARITY_THRESHOLD | 0.72–0.85 | Matches the semantic similarity range for coking coal professional indicators, filtering low-correlation recall results |
INDEX_INCREMENTAL_SYNC | Enabled | Adapts to the quarterly and monthly update cadence of coking coal data, reducing computational load from full index reconstruction |
PARSE_FIELD_WHITELIST | ["产量","均价","库存","灰分","硫分"] | Filters non-core fields, reduces redundant information in vector encoding, and focuses on key content in financial reports |
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 case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Mistakes
- Phenomenon: Vector retrieval results have low matching accuracy, and core coking coal indicators are not recalled. Cause: An embedding model adapted only to general Chinese corpora was selected, without optimization for coal industry professional terminology.
- Phenomenon: The exported knowledge base dataset.csv only contains the index field, with no content in the content field. Cause: Persistent storage configuration for index content was not enabled, or document original content fields were not correctly extracted during the parsing stage.
- Phenomenon: The indexing model fails to load properly inside the Docker container, with a
500 Internal Server Errorreported on startup. Cause: The local cache directory for the indexing model was not mounted in docker-compose.yml, or the model interface configured via OneAPI did not grant container access permissions.
How to Verify Proper Configuration
- Access the FastGPT vector model management interface, confirm that the selected embedding model matches the value of
EMBEDDING_MODELin the configuration, and complies with the configuration specifications for the currently deployed v4.8.21-fix version. - Upload a test coking coal financial report document, check that the parsed chunk results fall within the range set by
CHUNK_SIZE, with no over-split core indicator segments. - Run a knowledge base recall test, verify that the number of returned recall results matches the setting of
RECALL_TOP_K, and that similarity results fall within the preset threshold range. - Export the knowledge base dataset.csv file, confirm that the content field contains the original text content of the document, with no null values.
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.