Data Characteristics of This Category
Data sources for professional services investment research include brokerage research reports, industry white papers, public company announcements, regulatory policy documents, and more. Update cycles cover real-time published announcements, regularly updated industry weekly and monthly reports, and irregularly pushed industry dynamic news. Document formats include PDFs with embedded tables, scanned research reports, and structured text files. Fields include publishing institutions, ratings, target prices, financial data, and more. Units include professional measurement identifiers such as currency units, percentages, and multiples.
Constraints on Document Parsing and Chunking
Multiple source document formats require parsing tools to support multi-format compatibility, including image text extraction for scanned documents and structured recognition of embedded tables. Real-time and periodic update cycles require the parsing workflow to support flexible switching between incremental sync and full updates, to avoid re-parsing already processed files. The presence of professional fields and measurement units requires the chunking workflow to preserve data correspondence, while retaining contextual integrity for professional terms, to avoid semantic fragmentation caused by splitting. Long texts and multi-page documents require chunking logic to align with document chapter structures, ensuring the logic conforms to the reading habits of investment research documents.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_PDF_ENABLE_OCR | Enabled | Most investment research documents are scanned reports or PDFs with embedded charts, requiring extraction of professional text content from images |
MAX_SEGMENT_LENGTH | 800–1200 characters | Investment research documents contain a large number of professional terms and long sentences. This range balances contextual integrity and chunk granularity |
PARSE_TABLE_KEEP_STRUCTURE | Enabled | Investment research documents include financial statements and industry data tables, requiring preservation of cell correspondence and measurement units |
UPLOAD_FILE_MAX_SIZE | 500 MB | Single research report collections or industry white papers have large file sizes, requiring support for large file uploads and parsing |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Parsing large or multi-page documents takes longer, this duration covers the parsing needs of most investment research documents |
SEGMENT_OVERLAP_RATE | 10–15% | Retains contextual overlap between adjacent chunks, preventing professional terms from being split across two separate chunks |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require specific analysis. It is recommended to test against one’s own samples before finalizing settings.
Three Common Mistakes
- The symptom is missing chart descriptions or table cell data in parsed documents. The cause is that structured parsing-related configurations are not enabled, leading to incomplete extraction of scanned documents or embedded tables.
- The symptom is that chunking results do not retain the contextual integrity of professional terms. The cause is that chunking overlap rate and segment length parameters are not adjusted for investment research documents, and generic default configurations are used.
- The symptom is that the returned text stream has no formatting hierarchy. Front-end parsing presents it as a single block of unstructured text. The cause is that format retention configurations are not enabled, and original document structures such as headings and lists are not converted to standard formats.
How to Verify Correct Configuration
- Upload an investment research PDF with embedded tables, and check if the parsed result retains complete cell data and table structure.
- Adjust the
MAX_SEGMENT_LENGTHparameter, run multiple parsing jobs on the same long document, and confirm that chunk lengths meet expectations and key terms are not split. - View parsing task logs, confirm no timeout errors occur, and that
PARSE_FILE_TIMEOUT_SECONDSsettings match actual processing times. - Call the interface to obtain parsed chunked text, and check if it includes the original document's heading hierarchy and format markers.
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.