| name | date-validity |
| description | Validate date values in a QUIQ-format table. Checks Event_date column and Mapping_info_1='date' rows using standard format parsing, Korean date formats, and optional LLM fallback. Use for data quality assessment of temporal data. |
| tier | community |
| category | lydus |
| parameters | {"quiq_path":{"description":"Path to QUIQ-format CSV file (output of quiq skill).","type":"string"},"save_path":{"description":"Directory path to save output files.","type":"string"},"use_llm":{"description":"If true (default), uses the local exo LLM for ambiguous date fallback. Set false to skip LLM and use rule-based only.","type":"boolean"}} |
Date Validity
Validates date values in a QUIQ-format table. For each date-related value, determines whether it represents a valid date using standard format parsing, Korean date format regex, and (optionally) an LLM fallback for ambiguous strings.
When to Use This Skill
- After QUIQ conversion, to assess quality of temporal data
- To identify records with invalid or malformed date strings
- As part of LYDUS quality management assessment
Data Sources in QUIQ
๋ ์ข
๋ฅ์ ๋ ์ง ๋ฐ์ดํฐ๋ฅผ ๋์์ผ๋ก ํจ:
| ์์ค | ์กฐ๊ฑด | Variable_name |
|---|
Event_date ์ปฌ๋ผ | non-null | Event_date |
Value ์ปฌ๋ผ | Mapping_info_1 contains date | ์๋ณธ Variable_name |
Validation Pipeline
๊ฐ ๋ ์ง ๋ฌธ์์ด์ ๋ํด ์์๋๋ก ๊ฒ์ฆ:
1. dateutil.parse() โ ํ์ค ๋ ์ง ํ์ (ISO, US, EU ๋ฑ)
2. _valid_date_custom() โ ํ๊ตญ์ด ๋ ์ง (e.g. "2024๋
3์ 15์ผ")
3. LLM fallback (์ ํ) โ ์ ๋ ๋ฐฉ๋ฒ ์คํจ ์ ๋ก์ปฌ exo LLM์ yes/no ์ง์
SQL ๋ฒ์ (duckdb.sql) ์ 1๋ฒ(TRY_STRPTIME 7์ข
) + 2๋ฒ(regex) ๋ง ์ง์. LLM fallback ์์.
Output
| File | Description |
|---|
date_validity_total.txt | Overall Date Validity (%), Total/Invalid dates |
date_validity_summary.csv | Per-variable: Total_date, Invalid_date, Date_Validity_(%) |
date_validity_detail.csv | Per-row: Date_value, Is_valid (Python ๋ฒ์ ๋ง) |
How to Run
SQL ๋ฒ์ (๋น ๋ฆ, LLM ์์)
import os
import duckdb
skill_dir = os.path.dirname(os.path.abspath(__file__))
with open(os.path.join(skill_dir, "scripts/duckdb.sql")) as f:
sql = f.read()
quiq_csv = "/path/to/quiq_3patients.csv"
sql = sql.replace("{quiq_csv}", quiq_csv)
df = duckdb.sql(sql).df()
total_date = df["Total_date"].sum()
invalid_date = df["Invalid_date"].sum()
date_validity = round((total_date - invalid_date) / total_date * 100, 2)
print(f"Date Validity (%) = {date_validity}")
save_path = "/path/to/output"
os.makedirs(save_path, exist_ok=True)
df.to_csv(f"{save_path}/date_validity_summary.csv", index=False, encoding="utf-8-sig")
with open(f"{save_path}/date_validity_total.txt", "w") as f:
f.write(f"Date Validity (%) = {date_validity}\n")
f.write(f"Total dates = {total_date}\n")
f.write(f"Invalid dates = {invalid_date}\n")
print(f"Saved {len(df):,} rows โ {save_path}")
Python ๋ฒ์ (LLM fallback ํฌํจ)
import pandas as pd
import sys, os
skill_dir = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, skill_dir)
from scripts.date_validity import get_date_validity
quiq = pd.read_csv("/path/to/quiq.csv")
valid_results_df, summary_df = get_date_validity(
quiq=quiq,
use_llm=True
)
As a script with config
quiq_path: /path/to/quiq.csv
save_path: /path/to/output
use_llm: true
python scripts/date_validity.py --config config.yaml
Critical Notes
-
SQL vs Python ์ ํ โ MIMIC-IV ์ฒ๋ผ ISO ํ์ ๋ ์ง๋ง ์์ผ๋ฉด SQL ๋ฒ์ ์ผ๋ก ์ถฉ๋ถ. ํฌ๊ท ํ์์ด๋ ์์ฐ์ด ๋ ์ง๊ฐ ์์ธ ๋ฐ์ดํฐ๋ Python + LLM fallback ๊ถ์ฅ.
-
์๋ณธ ์ฝ๋ ๋ฒ๊ทธ ์์ โ _gpt_chat ๋ฐํ๊ฐ์ด list์ธ๋ฐ if "no" in result๋ก list ์ ์ฒด๋ฅผ ๊ฒ์ํ์ โ result[0]๋ก ์์ .
-
LLM ํธ์ถ ๋ฐฉ์ โ LLM fallback์ ํ์ค ํ์ฑ ์คํจ ์์๋ง ๋ก์ปฌ exo LLM (OpenAI ํธํ /v1/chat/completions)๋ฅผ ํตํด ํธ์ถ๋จ. MIMIC-IV์์๋ ๊ฑฐ์ ํธ์ถ๋์ง ์์.
-
use_llm=False โ Python ๋ฒ์ ์์ use_llm=False ๋ก ์ค์ ํ๋ฉด LLM fallback ์์ด ๊ท์น ๊ธฐ๋ฐ์ผ๋ก๋ง ์คํ ๊ฐ๋ฅ.
References
- LYDUS ํ์ง๊ด๋ฆฌ ํ๋ก๊ทธ๋จ ํ์ฉ ๊ฐ์ด๋๋ผ์ธ (๋น๊ณต๊ฐ ๋ด๋ถ ๋ฌธ์)
- Original Python implementation: LYDUS_Date_Validity.py (์ด์ฑ๋ฏผ ์์ฑ)