Principle:ChenghaoMou Text dedup Pipeline Configuration
| Knowledge Sources | |
|---|---|
| Domains | Configuration, Data_Engineering |
| Last Updated | 2026-02-14 21:00 GMT |
Overview
A configuration management pattern that uses typed hierarchical settings parsed from TOML files to drive a complete deduplication pipeline.
Description
Pipeline Configuration is the principle of defining all algorithm parameters, input sources, output behavior, and debug settings through a single typed configuration object. By leveraging Pydantic BaseSettings with TOML file sources, configurations are validated at parse time, preventing runtime errors from invalid parameter combinations. The configuration hierarchy uses a discriminated union pattern to support multiple algorithm types (MinHash, SimHash, Bloom Filter, Suffix Array) through a single Config hub.
This approach solves the problem of managing complex pipelines with many interdependent parameters (e.g., MinHash LSH bands/rows must be computed from threshold and num_perm) by centralizing all settings into a validated, typed structure.
Usage
Use this principle when building data processing pipelines that require reproducible, validated configuration. It is the entry point for every deduplication workflow in text-dedup and should be the first step before any data loading or algorithm execution.
Theoretical Basis
The configuration pattern follows a hierarchical decomposition:
# Abstract configuration hierarchy (NOT real implementation)
Config:
input: InputConfig # Data source selection
algorithm: AlgoConfig # Algorithm-specific parameters (discriminated union)
output: OutputConfig # Save behavior
debug: DebugConfig # Profiling flags
# Algorithm dispatch via discriminated union
AlgoConfig = MinHashConfig | SimHashConfig | BloomFilterConfig | SuffixArrayConfig
Key design decisions:
- TOML as source of truth — Human-readable, version-controllable configuration files
- Discriminated union — Algorithm type field selects the correct config subclass
- Post-initialization hooks — Derived parameters (LSH bands/rows, SimHash permutations) are computed after parsing