What data for this category looks like
Coking coal financing daily report data mainly comes from public quotes of domestic coal trading markets, pledge registration data of futures delivery warehouses, and public survey information from industry self-regulatory organizations. Data is updated daily, with complete data for the previous day released by 18:00 on the current day. The structure of each document is fixed, including fields such as report date, coking coal origin classification, cooperating trading entities, financing scale, financing period, delivery region, funding rate, etc. Financing scale is measured in ten thousand yuan, financing period is measured in natural days, and funding rate is quoted in annualized basis points.
What constraints these characteristics impose on vector models and indexing
Daily full data updates require vector indexes to support incremental update mechanisms, avoiding redundant computation overhead from daily full reindexing. The fixed structured field structure requires vector models to prioritize semantic encoding of structured fields, reducing semantic bias caused by unstructured concatenation. The limited but clearly defined fields per document require index configurations to prioritize chunked indexing for structured fields; full document concatenation will break semantic associations between fields. Numeric fields such as financing scale need separate numeric vector generation, fused with semantic vectors from text fields for combined indexing, to ensure precise matching during retrieval.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
embedding_platform | oneapi | Supports integration with third-party Embedding interfaces, adapts to official models that cannot be directly called, and resolves issues with limited model selection |
chunk_size | 800–1200 characters | The structured field groups for coking coal financing daily reports are moderately sized; this range can fully cover a single set of associated fields and avoid semantic fragmentation |
recall_top_k | Top 10–15 entries | The number of valid fields per daily report is limited; this value range can cover all relevant retrieval results and avoid redundant recall |
index_type | faiss-ivf | The daily incremental update data volume is large; this index type balances retrieval speed and recall accuracy, adapting to high-frequency update scenarios |
vector_dimension | 1024 or 1536 | Must exactly match the output dimension of the selected Embedding model; 1024 corresponds to bge-large-zh-v1.5, 1536 corresponds to text-embedding-ada-002 |
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 specific analysis, and it is recommended to test on your own samples before finalizing.
Three common mistakes
- Phenomenon: The platform interface cannot select the latest embedding models including Embedding-3, CharGLM-4, or prompts model call failure after configuration. Cause: The
embedding_platformparameter is not set tooneapi, and direct use of the platform's built-in interface leads to limited third-party model call capabilities. - Phenomenon: A vector model connection error is prompted after local deployment, with log error codes showing
400 Bad Requestorconnection refused. Cause:ONEAPI_API_KEYandONEAPI_BASE_URLare not correctly filled in the deployment configuration, causing the platform to fail to connect to the third-party vector model service. - Phenomenon: Field misalignment or irrelevant content appears in retrieval results after importing the coking coal financing daily report knowledge base. Cause: The
chunk_sizeis not set to adapt to the structured field group length of the daily report, and the default segmentation logic breaks the semantic association of associated fields.
How to confirm successful configuration
- Enter the embedding model configuration interface, confirm that the
embedding_platformparameter is configured to the target docking platform, and the interface key and address of the corresponding model have been entered. - Upload a single sample of coking coal financing daily report, check the automatic segmentation preview result, and confirm that the segmentation logic matches the custom field group division rules.
- Initiate a retrieval request containing coking coal financing related keywords, verify the field integrity and semantic matching degree of the returned results.
- View the update record on the index management page, confirm that there are no abnormal errors in the daily incremental update task.
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.