What the Data for This Category Looks Like
Data for aquaculture financing daily reports comes primarily from local financial institutions’ special aquaculture loan ledgers, financing application filing information from aquaculture entities, and daily aggregated data from industry associations. The data updates daily, generating a summary of the previous day’s financing entries each day. Most content uses structured fields, including aquaculture entity name, corresponding aquaculture species, financing amount, lending institution, application date, aquaculture land area, loan purpose, and similar fields. A small amount of unstructured remark content about breeding cycles is also included.
What Constraints These Characteristics Impose on Vector Models and Indexing
High proportions of structured fields with clear business attributes require vector models to use differentiated embedding weights for core retrieval fields, to avoid interference from non-key fields during semantic matching. The daily data update rhythm requires indexes to support incremental updates, eliminating resource consumption from full reindexing. Fields include fixed units such as ten thousand yuan and mu; unit information must be retained before embedding to prevent semantic confusion. Timeliness requirements mean indexes need built-in time range filtering rules to prioritize recent financing entries. Indexes must also adapt to short unstructured remark content by controlling single text length to optimize embedding performance.
How to Set Configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
CHUNK_SIZE | 800–1000 characters | Adapts to the length of unstructured remarks in daily reports, avoids damaging semantic integrity or introducing irrelevant information |
EMBEDDING_MODEL | bge-large-zh-v1.5 | Matches professional terminology in the aquaculture field, with Chinese embedding performance meeting business requirements |
INDEX_REFRESH_INTERVAL | 1 hour | Matches the daily update rhythm of financing daily reports, balances data timeliness and server load |
RECALL_TOP_K | Top 10–15 entries | Controls the number of retrieval results, avoids redundant entries interfering with business judgment |
SIMILARITY_THRESHOLD | 0.75–0.85 | Filters low-match non-aquaculture financing entries, retains highly relevant aquaculture financing data |
FIELD_WEIGHT | aquaculture species:1.5, financing amount:1.2 | Increases the weight of core business fields, prioritizes matching core user query needs |
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.
Three Common Mistakes
- Phenomenon: Knowledge base disk usage statistics show abnormal values, or the knowledge base fails to load normally after disk cleanup. Cause: Independent storage paths are not configured for embedding vectors, original files, and split chunks respectively. Mixing the three types of data leads to errors in resource statistics and cleanup.
- Phenomenon: A large number of non-aquaculture financing entries appear in retrieval results, which does not match the configured
RECALL_TOP_Kquantity. Cause: Field weights are not correctly configured, or semantic matching rules for structured fields are not enabled during index creation, leading to non-core fields interfering with sorting. - Phenomenon: In version V4.14.3, when "Create Index" is selected, an error message "No available model channel found" is displayed. Cause: The embedding model channel is not bound in system settings, or the configured model path fails version verification.
How to Confirm Configuration Is Correct
- The knowledge base management page is accessed, and core parameter configuration values such as
CHUNK_SIZEandSIMILARITY_THRESHOLDare verified to match the preset plan. - A test aquaculture financing daily report entry is uploaded, and the embedding task log is checked to confirm the embedding model loads normally and no format errors occur.
- A retrieval test is run, and it is confirmed that the number of returned results matches the
RECALL_TOP_Kconfiguration, with recently submitted financing entries displayed first. - System disk usage statistics are reviewed, and it is confirmed that embedding vectors, original files, and split chunks each occupy independent storage directories with no mixed storage.
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.