删除 LGBM 全部代码和模型文件,EMOS 简化为纯 legacy 高斯分桶模式

This commit is contained in:
2569718930@qq.com
2026-05-18 22:05:55 +08:00
parent aec47adda1
commit 0e0aad3171
26 changed files with 11 additions and 149413 deletions
@@ -1,359 +0,0 @@
import argparse
import json
import os
import shutil
import subprocess
import sys
from datetime import datetime, timezone
from typing import Any, Dict, List, Optional
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from src.analysis.probability_calibration import DEFAULT_CALIBRATION_FILE # noqa: E402
ARTIFACT_DIR = os.path.join(PROJECT_ROOT, "artifacts", "probability_calibration")
def _runtime_calibration_dir() -> str:
runtime_dir = str(os.getenv("POLYWEATHER_RUNTIME_DATA_DIR") or "").strip()
if runtime_dir:
return os.path.join(runtime_dir, "probability_calibration")
return ARTIFACT_DIR
DEFAULT_CANDIDATE_ROOT = os.path.join(_runtime_calibration_dir(), "candidates")
DEFAULT_DECISION_REPORT = os.path.join(
_runtime_calibration_dir(),
"auto_retrain_report.json",
)
def _sf(value: Any) -> Optional[float]:
if value is None:
return None
try:
return float(value)
except Exception:
return None
def _env_float(name: str, default: float) -> float:
value = _sf(os.getenv(name))
return value if value is not None else default
def _env_int(name: str, default: int) -> int:
value = _sf(os.getenv(name))
return int(value) if value is not None else default
def _load_json(path: str) -> Dict[str, Any]:
try:
with open(path, "r", encoding="utf-8") as fh:
data = json.load(fh)
return data if isinstance(data, dict) else {}
except Exception:
return {}
def _write_json(path: str, payload: Dict[str, Any]) -> None:
output_dir = os.path.dirname(os.path.abspath(path))
if output_dir:
os.makedirs(output_dir, exist_ok=True)
with open(path, "w", encoding="utf-8") as fh:
json.dump(payload, fh, ensure_ascii=False, indent=2)
def _run_python(args: List[str], *, stream: bool = False) -> Dict[str, Any]:
command = [sys.executable, *args]
if stream:
completed = subprocess.run(
command,
cwd=PROJECT_ROOT,
text=True,
check=False,
)
return {
"command": command,
"returncode": completed.returncode,
"stdout": "",
"stderr": "",
}
completed = subprocess.run(
command,
cwd=PROJECT_ROOT,
text=True,
capture_output=True,
check=False,
)
return {
"command": command,
"returncode": completed.returncode,
"stdout": completed.stdout,
"stderr": completed.stderr,
}
def _append_blocker(blockers: List[str], condition: bool, message: str) -> None:
if condition:
blockers.append(message)
def judge_candidate(
evaluation_report: Dict[str, Any],
*,
min_samples: int,
max_delta_crps: float,
max_delta_mae: float,
min_delta_bucket_hit_rate: float,
) -> Dict[str, Any]:
summary = evaluation_report.get("summary") or {}
delta = summary.get("delta") or {}
sample_count = int(summary.get("sample_count") or 0)
delta_crps = _sf(delta.get("crps"))
delta_mae = _sf(delta.get("mae"))
delta_hit = _sf(delta.get("bucket_hit_rate"))
blockers: List[str] = []
_append_blocker(
blockers,
sample_count < min_samples,
f"sample_count {sample_count} < {min_samples}",
)
_append_blocker(
blockers,
delta_crps is None or delta_crps > max_delta_crps,
f"delta_crps {delta_crps} > {max_delta_crps}",
)
_append_blocker(
blockers,
delta_mae is None or delta_mae > max_delta_mae,
f"delta_mae {delta_mae} > {max_delta_mae}",
)
_append_blocker(
blockers,
delta_hit is None or delta_hit < min_delta_bucket_hit_rate,
f"delta_bucket_hit_rate {delta_hit} < {min_delta_bucket_hit_rate}",
)
return {
"decision": "promote" if not blockers else "hold",
"ready_for_promotion": not blockers,
"blocking_reasons": blockers,
"thresholds": {
"min_samples": min_samples,
"max_delta_crps": max_delta_crps,
"max_delta_mae": max_delta_mae,
"min_delta_bucket_hit_rate": min_delta_bucket_hit_rate,
},
"metrics": {
"sample_count": sample_count,
"delta_crps": delta_crps,
"delta_mae": delta_mae,
"delta_bucket_hit_rate": delta_hit,
},
}
def _promote(candidate_path: str, target_path: str) -> str:
target_dir = os.path.dirname(os.path.abspath(target_path))
if target_dir:
os.makedirs(target_dir, exist_ok=True)
backup_path = os.path.join(
target_dir,
"default.backup-{ts}.json".format(
ts=datetime.now(timezone.utc).strftime("%Y%m%d%H%M%S")
),
)
if os.path.exists(target_path):
shutil.copy2(target_path, backup_path)
shutil.copy2(candidate_path, target_path)
return backup_path
def main() -> int:
parser = argparse.ArgumentParser(
description="Train an EMOS candidate, evaluate it, and optionally promote it behind gates."
)
parser.add_argument("--candidate-root", default=DEFAULT_CANDIDATE_ROOT)
parser.add_argument("--target", default=DEFAULT_CALIBRATION_FILE)
parser.add_argument("--decision-output", default=DEFAULT_DECISION_REPORT)
parser.add_argument(
"--promote-if-passed",
action="store_true",
help="Copy the candidate over the active calibration file only if gates pass.",
)
parser.add_argument(
"--run-tests",
action="store_true",
help="Run focused probability tests before promotion.",
)
parser.add_argument(
"--verbose",
action="store_true",
help="Print child script progress while training and evaluating.",
)
parser.add_argument(
"--snapshot-limit",
type=int,
default=_env_int("POLYWEATHER_EMOS_TRAINING_SNAPSHOT_LIMIT", 0),
help="Optional max number of recent probability snapshots to load from SQLite.",
)
parser.add_argument(
"--min-samples",
type=int,
default=_env_int("POLYWEATHER_EMOS_AUTO_MIN_SAMPLES", 50),
)
parser.add_argument(
"--max-delta-crps",
type=float,
default=_env_float("POLYWEATHER_EMOS_AUTO_MAX_DELTA_CRPS", 0.0),
help="Candidate EMOS CRPS may not be worse than legacy by more than this.",
)
parser.add_argument(
"--max-delta-mae",
type=float,
default=_env_float("POLYWEATHER_EMOS_AUTO_MAX_DELTA_MAE", 0.05),
)
parser.add_argument(
"--min-delta-bucket-hit-rate",
type=float,
default=_env_float("POLYWEATHER_EMOS_AUTO_MIN_DELTA_BUCKET_HIT_RATE", -0.05),
help="Soft guard only; bucket hit rate is boundary-sensitive.",
)
args = parser.parse_args()
version = "emos-auto-{ts}".format(
ts=datetime.now(timezone.utc).strftime("%Y%m%d%H%M%S")
)
candidate_dir = os.path.join(args.candidate_root, version)
os.makedirs(candidate_dir, exist_ok=True)
candidate_path = os.path.join(candidate_dir, "default.json")
evaluation_path = os.path.join(candidate_dir, "evaluation_report.json")
decision_path = os.path.join(candidate_dir, "decision_report.json")
fit_args = [
"scripts/fit_probability_calibration.py",
"--output",
candidate_path,
"--version",
version,
]
if args.verbose:
fit_args.append("--verbose")
if args.snapshot_limit and args.snapshot_limit > 0:
fit_args.extend(["--snapshot-limit", str(args.snapshot_limit)])
fit_result = _run_python(
fit_args,
stream=args.verbose,
)
if fit_result["returncode"] != 0:
payload = {
"ok": False,
"version": version,
"stage": "fit",
"fit": fit_result,
}
_write_json(decision_path, payload)
_write_json(args.decision_output, payload)
print(json.dumps(payload, ensure_ascii=False, indent=2))
return fit_result["returncode"] or 1
eval_args = [
"scripts/evaluate_probability_calibration.py",
"--calibration-file",
candidate_path,
"--output",
evaluation_path,
]
if args.verbose:
eval_args.append("--verbose")
if args.snapshot_limit and args.snapshot_limit > 0:
eval_args.extend(["--snapshot-limit", str(args.snapshot_limit)])
eval_result = _run_python(
eval_args,
stream=args.verbose,
)
if eval_result["returncode"] != 0:
payload = {
"ok": False,
"version": version,
"stage": "evaluate",
"candidate_path": candidate_path,
"fit": fit_result,
"evaluate": eval_result,
}
_write_json(decision_path, payload)
_write_json(args.decision_output, payload)
print(json.dumps(payload, ensure_ascii=False, indent=2))
return eval_result["returncode"] or 1
evaluation_report = _load_json(evaluation_path)
decision = judge_candidate(
evaluation_report,
min_samples=args.min_samples,
max_delta_crps=args.max_delta_crps,
max_delta_mae=args.max_delta_mae,
min_delta_bucket_hit_rate=args.min_delta_bucket_hit_rate,
)
test_result = None
if args.run_tests and decision["ready_for_promotion"]:
test_result = _run_python(
[
"-m",
"pytest",
"tests/test_probability_calibration.py",
"tests/test_probability_rollout.py",
"tests/test_trend_engine.py",
]
)
if test_result["returncode"] != 0:
decision["decision"] = "hold"
decision["ready_for_promotion"] = False
decision.setdefault("blocking_reasons", []).append(
"focused tests failed"
)
promoted = False
backup_path = None
if args.promote_if_passed and decision["ready_for_promotion"]:
backup_path = _promote(candidate_path, args.target)
promoted = True
payload = {
"ok": True,
"version": version,
"generated_at": datetime.now(timezone.utc).isoformat(),
"candidate_dir": candidate_dir,
"candidate_path": candidate_path,
"evaluation_path": evaluation_path,
"target_path": args.target,
"promote_requested": bool(args.promote_if_passed),
"promoted": promoted,
"backup_path": backup_path,
"decision": decision,
"fit": fit_result,
"evaluate": eval_result,
"tests": test_result,
}
_write_json(decision_path, payload)
_write_json(args.decision_output, payload)
print(json.dumps(payload["decision"], ensure_ascii=False, indent=2))
print(f"candidate: {candidate_path}")
print(f"evaluation: {evaluation_path}")
print(f"decision: {decision_path}")
if promoted:
print(f"promoted to {args.target}; backup: {backup_path}")
elif args.promote_if_passed:
print("not promoted; gates did not pass")
else:
print("not promoted; run with --promote-if-passed to allow gated promotion")
return 0
if __name__ == "__main__":
raise SystemExit(main())
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import argparse
import json
import os
import sys
from collections import defaultdict
from datetime import datetime
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from src.analysis.settlement_rounding import apply_city_settlement # noqa: E402
from scripts.fit_probability_calibration import ( # noqa: E402
_default_history_arg,
_load_history_with_fallback,
)
def _sf(value):
if value is None:
return None
try:
return float(value)
except Exception:
return None
def _mean(values):
return round(sum(values) / len(values), 6) if values else None
def _top_bucket(snapshot):
if not isinstance(snapshot, list):
return None
best = None
best_prob = -1.0
for row in snapshot:
if not isinstance(row, dict):
continue
try:
prob = float(row.get("p") if "p" in row else row.get("probability"))
except Exception:
continue
value = row.get("v") if "v" in row else row.get("value")
if value is None:
continue
if prob > best_prob:
best = value
best_prob = prob
return best
def _bucket_probability(snapshot, target_bucket):
if not isinstance(snapshot, list):
return 0.0
for row in snapshot:
if not isinstance(row, dict):
continue
value = row.get("v") if "v" in row else row.get("value")
if value != target_bucket:
continue
try:
return float(row.get("p") if "p" in row else row.get("probability") or 0.0)
except Exception:
return 0.0
return 0.0
def _brier_from_snapshot(snapshot, target_bucket):
hit_prob = _bucket_probability(snapshot, target_bucket)
total = (1.0 - hit_prob) ** 2
if isinstance(snapshot, list):
for row in snapshot:
if not isinstance(row, dict):
continue
value = row.get("v") if "v" in row else row.get("value")
if value == target_bucket:
continue
try:
prob = float(row.get("p") if "p" in row else row.get("probability") or 0.0)
except Exception:
prob = 0.0
total += prob * prob
return round(total, 6)
def _blank_metrics():
return {
"samples": 0,
"legacy_mae": [],
"shadow_mae": [],
"legacy_bucket_hit": [],
"shadow_bucket_hit": [],
"legacy_bucket_brier": [],
"shadow_bucket_brier": [],
}
def _rollup(metrics):
return {
"samples": metrics["samples"],
"legacy_mean_mae": _mean(metrics["legacy_mae"]),
"shadow_mean_mae": _mean(metrics["shadow_mae"]),
"legacy_bucket_hit_rate": _mean(metrics["legacy_bucket_hit"]),
"shadow_bucket_hit_rate": _mean(metrics["shadow_bucket_hit"]),
"legacy_bucket_brier": _mean(metrics["legacy_bucket_brier"]),
"shadow_bucket_brier": _mean(metrics["shadow_bucket_brier"]),
"delta_mae": round((_mean(metrics["shadow_mae"]) or 0.0) - (_mean(metrics["legacy_mae"]) or 0.0), 6),
"delta_bucket_hit_rate": round((_mean(metrics["shadow_bucket_hit"]) or 0.0) - (_mean(metrics["legacy_bucket_hit"]) or 0.0), 6),
"delta_bucket_brier": round((_mean(metrics["shadow_bucket_brier"]) or 0.0) - (_mean(metrics["legacy_bucket_brier"]) or 0.0), 6),
}
def main():
parser = argparse.ArgumentParser(description="Build live shadow probability report from daily records.")
parser.add_argument(
"--history-file",
default=_default_history_arg(),
)
parser.add_argument(
"--output",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"shadow_report.json",
),
)
args = parser.parse_args()
history = _load_history_with_fallback(args.history_file)
overall = _blank_metrics()
by_city = defaultdict(_blank_metrics)
by_date = defaultdict(_blank_metrics)
latest_observations = []
for city, city_records in sorted(history.items()):
if not isinstance(city_records, dict):
continue
for date_str, record in sorted(city_records.items()):
if not isinstance(record, dict):
continue
actual_high = _sf(record.get("actual_high"))
shadow_snapshot = record.get("shadow_prob_snapshot")
calibration = record.get("probability_calibration") or {}
if actual_high is None or not shadow_snapshot:
continue
legacy_mu = _sf(calibration.get("raw_mu"))
if legacy_mu is None:
legacy_mu = _sf(record.get("mu"))
shadow_mu = _sf(calibration.get("calibrated_mu"))
if shadow_mu is None:
continue
actual_bucket = apply_city_settlement(city, actual_high)
legacy_snapshot = record.get("prob_snapshot") or []
legacy_bucket = _top_bucket(legacy_snapshot)
shadow_bucket = _top_bucket(shadow_snapshot)
for metrics in (overall, by_city[city], by_date[date_str]):
metrics["samples"] += 1
metrics["legacy_mae"].append(abs(legacy_mu - actual_high))
metrics["shadow_mae"].append(abs(shadow_mu - actual_high))
metrics["legacy_bucket_hit"].append(1.0 if legacy_bucket == actual_bucket else 0.0)
metrics["shadow_bucket_hit"].append(1.0 if shadow_bucket == actual_bucket else 0.0)
metrics["legacy_bucket_brier"].append(_brier_from_snapshot(legacy_snapshot, actual_bucket))
metrics["shadow_bucket_brier"].append(_brier_from_snapshot(shadow_snapshot, actual_bucket))
latest_observations.append(
{
"city": city,
"date": date_str,
"actual_high": actual_high,
"actual_bucket": actual_bucket,
"legacy_mu": round(legacy_mu, 3),
"shadow_mu": round(shadow_mu, 3),
"legacy_top_bucket": legacy_bucket,
"shadow_top_bucket": shadow_bucket,
"calibration_version": calibration.get("version"),
"calibration_mode": calibration.get("mode"),
}
)
by_city_report = {
city: _rollup(metrics)
for city, metrics in sorted(by_city.items())
}
by_date_report = {
date_str: _rollup(metrics)
for date_str, metrics in sorted(
by_date.items(),
key=lambda item: datetime.strptime(item[0], "%Y-%m-%d"),
)
}
latest_observations = sorted(
latest_observations,
key=lambda row: (row["date"], row["city"]),
reverse=True,
)[:100]
payload = {
"generated_at": datetime.utcnow().isoformat() + "Z",
"summary": _rollup(overall),
"by_city": by_city_report,
"by_date": by_date_report,
"recent_observations": latest_observations,
}
output_dir = os.path.dirname(os.path.abspath(args.output))
if output_dir:
os.makedirs(output_dir, exist_ok=True)
with open(args.output, "w", encoding="utf-8") as fh:
json.dump(payload, fh, ensure_ascii=False, indent=2)
print(json.dumps(payload["summary"], ensure_ascii=False, indent=2))
print(f"saved shadow report to {args.output}")
if __name__ == "__main__":
main()
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import argparse
import json
import os
import sys
from collections import defaultdict
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from src.analysis.probability_calibration import ( # noqa: E402
ENGINE_MODE_EMOS_PRIMARY,
_gaussian_crps,
apply_probability_calibration,
build_probability_features,
)
from src.analysis.settlement_rounding import apply_city_settlement # noqa: E402
from scripts.fit_probability_calibration import ( # noqa: E402
_default_history_arg,
_extract_samples,
_load_history_with_fallback,
_load_json_if_exists,
_load_legacy_training_samples,
_load_snapshot_rows,
_load_training_feature_history,
_load_truth_history,
merge_samples_with_legacy_archive,
)
def _env_int(name, default=None):
try:
value = os.getenv(name)
if value is None or str(value).strip() == "":
return default
return int(value)
except Exception:
return default
def _log(enabled, message):
if enabled:
print(f"[evaluate_probability_calibration] {message}", flush=True)
def _mean(values):
return (sum(values) / len(values)) if values else None
def _sample_to_features(sample):
return build_probability_features(
city_name=sample.get("city") or "",
raw_mu=sample.get("raw_mu"),
raw_sigma=sample.get("raw_sigma"),
deb_prediction=sample.get("deb_prediction"),
ens_data={
"median": sample.get("ens_median"),
"p10": None,
"p90": None,
},
current_forecasts={},
max_so_far=None,
peak_status="in_window" if sample.get("peak_flag") == 0.5 else "past" if sample.get("peak_flag") == 1.0 else "before",
local_hour_frac=None,
)
def _top_bucket_value(distribution):
if not distribution:
return None
top = max(
(row for row in distribution if isinstance(row, dict)),
key=lambda row: float(row.get("probability") or 0.0),
default=None,
)
if not top:
return None
return top.get("value")
def main():
parser = argparse.ArgumentParser(description="Evaluate legacy vs EMOS probability calibration.")
parser.add_argument(
"--history-file",
default=_default_history_arg(),
)
parser.add_argument(
"--settlement-history",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"settlement_history.json",
),
)
parser.add_argument(
"--calibration-file",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"default.json",
),
)
parser.add_argument(
"--output",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"evaluation_report.json",
),
)
parser.add_argument(
"--snapshot-file",
default=None,
help="Optional legacy JSONL snapshot archive path. In sqlite mode this defaults to the runtime database.",
)
parser.add_argument(
"--snapshot-limit",
type=int,
default=_env_int("POLYWEATHER_EMOS_TRAINING_SNAPSHOT_LIMIT"),
help="Optional max number of recent probability snapshots to load from SQLite.",
)
parser.add_argument(
"--verbose",
action="store_true",
help="Print data loading and evaluation progress.",
)
args = parser.parse_args()
_log(args.verbose, "loading daily records")
history = _load_history_with_fallback(args.history_file)
_log(args.verbose, f"loaded daily record cities={len(history or {})}")
_log(args.verbose, "loading training feature history")
training_feature_history = _load_training_feature_history()
_log(args.verbose, f"loaded training feature cities={len(training_feature_history or {})}")
_log(args.verbose, "loading truth history")
truth_history = _load_truth_history()
_log(args.verbose, f"loaded truth cities={len(truth_history or {})}")
_log(args.verbose, "loading settlement history")
settlement_history = _load_json_if_exists(args.settlement_history)
_log(args.verbose, f"loaded settlement history cities={len(settlement_history or {})}")
_log(
args.verbose,
"loading probability snapshots"
+ (f" limit={args.snapshot_limit}" if args.snapshot_limit else ""),
)
snapshot_rows = _load_snapshot_rows(args.snapshot_file, limit=args.snapshot_limit)
_log(args.verbose, f"loaded probability snapshots={len(snapshot_rows or [])}")
_log(args.verbose, "loading legacy training archive")
legacy_training_samples = _load_legacy_training_samples()
_log(args.verbose, f"loaded legacy training samples={len(legacy_training_samples or [])}")
_log(args.verbose, "extracting evaluation samples")
samples, filled_actual_from_history = _extract_samples(
history,
training_feature_history=training_feature_history,
truth_history=truth_history,
settlement_history=settlement_history,
snapshot_rows=snapshot_rows,
)
samples = merge_samples_with_legacy_archive(samples, legacy_training_samples)
_log(args.verbose, f"evaluating samples={len(samples or [])}")
legacy_crps = []
emos_crps = []
legacy_mae = []
emos_mae = []
legacy_bucket_hits = []
emos_bucket_hits = []
by_city = defaultdict(lambda: {
"samples": 0,
"legacy_crps": [],
"emos_crps": [],
"legacy_mae": [],
"emos_mae": [],
"legacy_bucket_hits": [],
"emos_bucket_hits": [],
})
for sample in samples:
city = str(sample.get("city") or "").strip().lower()
actual_high = float(sample["actual_high"])
raw_mu = float(sample["raw_mu"])
raw_sigma = max(0.1, float(sample["raw_sigma"]))
legacy_crps.append(_gaussian_crps(actual_high, raw_mu, raw_sigma))
legacy_mae.append(abs(raw_mu - actual_high))
legacy_bucket = apply_city_settlement(city, raw_mu)
actual_bucket = apply_city_settlement(city, actual_high)
legacy_bucket_hits.append(1.0 if legacy_bucket == actual_bucket else 0.0)
calibration = apply_probability_calibration(
city_name=city,
temp_symbol="°F" if city in {"atlanta", "chicago", "dallas", "miami", "new york", "seattle"} else "°C",
raw_mu=raw_mu,
raw_sigma=raw_sigma,
max_so_far=None,
legacy_distribution=[],
features=_sample_to_features(sample),
calibration_path=args.calibration_file,
mode=ENGINE_MODE_EMOS_PRIMARY,
)
emos_mu = float(calibration.get("calibrated_mu") or raw_mu)
emos_sigma = max(0.1, float(calibration.get("calibrated_sigma") or raw_sigma))
emos_distribution = calibration.get("distribution") or []
emos_crps.append(_gaussian_crps(actual_high, emos_mu, emos_sigma))
emos_mae.append(abs(emos_mu - actual_high))
emos_bucket = _top_bucket_value(emos_distribution)
emos_bucket_hits.append(1.0 if emos_bucket == actual_bucket else 0.0)
row = by_city[city]
row["samples"] += 1
row["legacy_crps"].append(legacy_crps[-1])
row["emos_crps"].append(emos_crps[-1])
row["legacy_mae"].append(legacy_mae[-1])
row["emos_mae"].append(emos_mae[-1])
row["legacy_bucket_hits"].append(legacy_bucket_hits[-1])
row["emos_bucket_hits"].append(emos_bucket_hits[-1])
summary = {
"sample_count": len(samples),
"filled_actual_from_history": filled_actual_from_history,
"legacy": {
"mean_crps": round(_mean(legacy_crps), 6) if legacy_crps else None,
"mean_mae": round(_mean(legacy_mae), 6) if legacy_mae else None,
"bucket_hit_rate": round(_mean(legacy_bucket_hits), 6) if legacy_bucket_hits else None,
},
"emos": {
"mean_crps": round(_mean(emos_crps), 6) if emos_crps else None,
"mean_mae": round(_mean(emos_mae), 6) if emos_mae else None,
"bucket_hit_rate": round(_mean(emos_bucket_hits), 6) if emos_bucket_hits else None,
},
"delta": {
"crps": round((_mean(emos_crps) or 0.0) - (_mean(legacy_crps) or 0.0), 6),
"mae": round((_mean(emos_mae) or 0.0) - (_mean(legacy_mae) or 0.0), 6),
"bucket_hit_rate": round((_mean(emos_bucket_hits) or 0.0) - (_mean(legacy_bucket_hits) or 0.0), 6),
},
}
city_report = {}
for city, metrics in sorted(by_city.items()):
city_report[city] = {
"samples": metrics["samples"],
"legacy_mean_crps": round(_mean(metrics["legacy_crps"]), 6),
"emos_mean_crps": round(_mean(metrics["emos_crps"]), 6),
"legacy_mean_mae": round(_mean(metrics["legacy_mae"]), 6),
"emos_mean_mae": round(_mean(metrics["emos_mae"]), 6),
"legacy_bucket_hit_rate": round(_mean(metrics["legacy_bucket_hits"]), 6),
"emos_bucket_hit_rate": round(_mean(metrics["emos_bucket_hits"]), 6),
}
payload = {
"summary": summary,
"by_city": city_report,
}
output_dir = os.path.dirname(os.path.abspath(args.output))
if output_dir:
os.makedirs(output_dir, exist_ok=True)
with open(args.output, "w", encoding="utf-8") as fh:
json.dump(payload, fh, ensure_ascii=False, indent=2)
print(json.dumps(summary, ensure_ascii=False, indent=2))
print(f"saved evaluation report to {args.output}")
_log(args.verbose, "done")
if __name__ == "__main__":
main()
@@ -1,78 +0,0 @@
import argparse
import json
import os
import sys
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from scripts.fit_probability_calibration import ( # noqa: E402
_default_history_arg,
_default_snapshot_arg,
_extract_samples,
_load_history_with_fallback,
_load_json_if_exists,
_load_snapshot_rows,
)
def main():
parser = argparse.ArgumentParser(description="Export normalized probability calibration training samples.")
parser.add_argument(
"--history-file",
default=_default_history_arg(),
)
parser.add_argument(
"--settlement-history",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"settlement_history.json",
),
)
parser.add_argument(
"--output",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"training_samples.json",
),
)
parser.add_argument(
"--snapshot-file",
default=_default_snapshot_arg(),
)
args = parser.parse_args()
history = _load_history_with_fallback(args.history_file)
settlement_history = _load_json_if_exists(args.settlement_history)
snapshot_rows = _load_snapshot_rows(args.snapshot_file)
samples, filled_actual_from_history = _extract_samples(
history,
settlement_history=settlement_history,
snapshot_rows=snapshot_rows,
)
snapshot_count = sum(1 for sample in samples if sample.get("sample_source") == "snapshot")
daily_record_count = sum(1 for sample in samples if sample.get("sample_source") == "daily_record")
output_dir = os.path.dirname(os.path.abspath(args.output))
if output_dir:
os.makedirs(output_dir, exist_ok=True)
payload = {
"sample_count": len(samples),
"snapshot_sample_count": snapshot_count,
"daily_record_sample_count": daily_record_count,
"filled_actual_from_history": filled_actual_from_history,
"samples": samples,
}
with open(args.output, "w", encoding="utf-8") as fh:
json.dump(payload, fh, ensure_ascii=False, indent=2)
print(f"exported {len(samples)} samples to {args.output}")
if __name__ == "__main__":
main()
-523
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@@ -1,523 +0,0 @@
import argparse
import json
import os
import sys
from datetime import datetime
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from src.analysis.probability_calibration import ( # noqa: E402
DEFAULT_CALIBRATION_FILE,
default_calibration_payload,
fit_calibration,
)
from src.analysis.deb_algorithm import load_history # noqa: E402
from src.database.runtime_state import ( # noqa: E402
DailyRecordRepository,
ProbabilitySnapshotRepository,
STATE_STORAGE_FILE,
STATE_STORAGE_SQLITE,
TrainingFeatureRecordRepository,
TruthRecordRepository,
get_state_storage_mode,
)
def _sf(value):
if value is None:
return None
try:
return float(value)
except Exception:
return None
def _env_int(name, default=None):
try:
value = os.getenv(name)
if value is None or str(value).strip() == "":
return default
return int(value)
except Exception:
return default
def _log(enabled, message):
if enabled:
print(f"[fit_probability_calibration] {message}", flush=True)
def _load_json_if_exists(path):
if not path or not os.path.exists(path):
return {}
with open(path, "r", encoding="utf-8") as fh:
data = json.load(fh)
return data if isinstance(data, dict) else {}
def _legacy_training_samples_path():
return os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"training_samples.json",
)
def _legacy_history_path():
return os.path.join(PROJECT_ROOT, "data", "daily_records.json")
def _legacy_snapshot_path():
return os.path.join(PROJECT_ROOT, "data", "probability_training_snapshots.jsonl")
def _default_history_arg():
return _legacy_history_path() if get_state_storage_mode() == STATE_STORAGE_FILE else None
def _default_snapshot_arg():
return _legacy_snapshot_path() if get_state_storage_mode() == STATE_STORAGE_FILE else None
def _load_history_with_fallback(path):
if not path:
if get_state_storage_mode() == STATE_STORAGE_SQLITE:
return DailyRecordRepository().load_all()
return {}
data = _load_json_if_exists(path)
if data:
return data
return load_history(path)
def _load_truth_history():
if get_state_storage_mode() != STATE_STORAGE_SQLITE:
return {}
try:
return TruthRecordRepository().load_all()
except Exception:
return {}
def _load_training_feature_history():
if get_state_storage_mode() != STATE_STORAGE_SQLITE:
return {}
try:
return TrainingFeatureRecordRepository().load_all()
except Exception:
return {}
def _load_snapshot_rows(path, limit=None):
if get_state_storage_mode() == STATE_STORAGE_SQLITE:
repo = ProbabilitySnapshotRepository()
if limit is not None and int(limit) > 0:
with repo.db.connect() as conn:
rows = conn.execute(
"""
SELECT payload_json
FROM probability_training_snapshots_store
ORDER BY id DESC
LIMIT ?
""",
(int(limit),),
).fetchall()
out = []
for row in reversed(rows):
try:
out.append(json.loads(row["payload_json"]))
except Exception:
continue
return out
return repo.load_all_rows()
rows = []
if not path or not os.path.exists(path):
return rows
with open(path, "r", encoding="utf-8") as fh:
for line in fh:
line = line.strip()
if not line:
continue
try:
row = json.loads(line)
except Exception:
continue
if isinstance(row, dict):
rows.append(row)
return rows
def _load_legacy_training_samples(path=None):
payload = _load_json_if_exists(path or _legacy_training_samples_path())
rows = payload.get("samples") if isinstance(payload, dict) else None
if not isinstance(rows, list):
return []
return [row for row in rows if isinstance(row, dict)]
def _actual_high_for(history, truth_history, settlement_history, city, date_str):
city_rows = (history or {}).get(city) or {}
record = city_rows.get(date_str) or {}
actual_high = _sf(record.get("actual_high")) if isinstance(record, dict) else None
truth_record = ((truth_history.get(city) or {}).get(date_str) or {})
if actual_high is None and isinstance(truth_record, dict):
actual_high = _sf(truth_record.get("actual_high"))
filled = False
if actual_high is None:
actual_high = _sf(((settlement_history.get(city) or {}).get(date_str) or {}).get("max_temp"))
filled = actual_high is not None
metadata = {
"settlement_source": truth_record.get("settlement_source"),
"settlement_station_code": truth_record.get("settlement_station_code"),
"truth_version": truth_record.get("truth_version"),
"truth_updated_by": truth_record.get("updated_by"),
"truth_updated_at": truth_record.get("truth_updated_at"),
}
return actual_high, filled, metadata
def _extract_snapshot_samples(history, truth_history=None, snapshot_rows=None, settlement_history=None):
samples = []
filled_actual_from_history = 0
today = datetime.utcnow().strftime("%Y-%m-%d")
settlement_history = settlement_history or {}
for row in snapshot_rows or []:
city = str(row.get("city") or "").strip().lower()
date_str = str(row.get("date") or "").strip()
if not city or not date_str or date_str == today:
continue
actual_high, filled, truth_meta = _actual_high_for(
history,
truth_history or {},
settlement_history,
city,
date_str,
)
if actual_high is None:
continue
if filled:
filled_actual_from_history += 1
raw_mu = _sf(row.get("raw_mu"))
raw_sigma = _sf(row.get("raw_sigma"))
deb_prediction = _sf(row.get("deb_prediction"))
ensemble = row.get("ensemble") or {}
if not isinstance(ensemble, dict):
ensemble = {}
ens_median = _sf(ensemble.get("median"))
ensemble_spread = None
ens_p10 = _sf(ensemble.get("p10"))
ens_p90 = _sf(ensemble.get("p90"))
if ens_p10 is not None and ens_p90 is not None and ens_p90 >= ens_p10:
ensemble_spread = max(0.1, (ens_p90 - ens_p10) / 2.56)
multi_model = row.get("multi_model") or {}
if not isinstance(multi_model, dict):
multi_model = {}
forecast_values = [val for val in (_sf(v) for v in multi_model.values()) if val is not None]
forecast_values.sort()
if ensemble_spread is None:
if len(forecast_values) >= 2:
ensemble_spread = max(0.6, (forecast_values[-1] - forecast_values[0]) / 2.0)
elif raw_sigma is not None:
ensemble_spread = raw_sigma
else:
ensemble_spread = 1.0
if raw_sigma is None:
raw_sigma = ensemble_spread
peak_status = str(row.get("peak_status") or "before").strip().lower()
peak_flag = 0.0
if peak_status == "in_window":
peak_flag = 0.5
elif peak_status == "past":
peak_flag = 1.0
max_so_far = _sf(row.get("max_so_far"))
max_so_far_gap = None
if deb_prediction is not None and max_so_far is not None:
max_so_far_gap = deb_prediction - max_so_far
if raw_mu is None:
continue
samples.append(
{
"city": city,
"date": date_str,
"timestamp": row.get("timestamp"),
"actual_high": actual_high,
"raw_mu": raw_mu,
"raw_sigma": raw_sigma or 1.0,
"deb_prediction": deb_prediction,
"ens_median": ens_median if ens_median is not None else raw_mu,
"ensemble_spread": ensemble_spread,
"max_so_far_gap": max_so_far_gap,
"peak_flag": peak_flag,
"sample_source": "snapshot",
**truth_meta,
}
)
return samples, filled_actual_from_history
def _extract_daily_record_samples(
history,
training_feature_history=None,
truth_history=None,
settlement_history=None,
excluded_keys=None,
):
samples = []
filled_actual_from_history = 0
today = datetime.utcnow().strftime("%Y-%m-%d")
settlement_history = settlement_history or {}
excluded_keys = excluded_keys or set()
for city, city_rows in (history or {}).items():
if not isinstance(city_rows, dict):
continue
city_settlement = settlement_history.get(city) or {}
for date_str, record in city_rows.items():
if date_str == today or not isinstance(record, dict):
continue
if (city, date_str) in excluded_keys:
continue
actual_high = _sf(record.get("actual_high"))
truth_meta = ((truth_history or {}).get(city) or {}).get(date_str) or {}
if actual_high is None:
actual_high = _sf(truth_meta.get("actual_high"))
if actual_high is None:
actual_high = _sf((city_settlement.get(date_str) or {}).get("max_temp"))
if actual_high is not None:
filled_actual_from_history += 1
feature_record = ((training_feature_history or {}).get(city) or {}).get(date_str) or {}
source_record = feature_record if isinstance(feature_record, dict) and feature_record else record
deb_prediction = _sf(source_record.get("deb_prediction"))
raw_mu = _sf(source_record.get("mu")) or deb_prediction
forecasts = source_record.get("forecasts") or {}
if not isinstance(forecasts, dict):
forecasts = {}
forecast_values = [val for val in (_sf(v) for v in forecasts.values()) if val is not None]
forecast_values.sort()
forecast_median = (
forecast_values[len(forecast_values) // 2] if forecast_values else None
)
feature_snapshot = source_record.get("probability_features") or {}
if not isinstance(feature_snapshot, dict):
feature_snapshot = {}
ens_median = _sf(feature_snapshot.get("ens_median")) or forecast_median or raw_mu
ensemble_spread = _sf(feature_snapshot.get("ensemble_spread"))
if ensemble_spread is None:
if len(forecast_values) >= 2:
ensemble_spread = max(0.6, (forecast_values[-1] - forecast_values[0]) / 2.0)
else:
ensemble_spread = 1.0
raw_sigma = _sf(feature_snapshot.get("raw_sigma")) or ensemble_spread or 1.0
peak_status = str(feature_snapshot.get("peak_status") or "before").strip().lower()
peak_flag = 0.0
if peak_status == "in_window":
peak_flag = 0.5
elif peak_status == "past":
peak_flag = 1.0
if actual_high is None or raw_mu is None:
continue
max_so_far = _sf(feature_snapshot.get("max_so_far"))
max_so_far_gap = _sf(feature_snapshot.get("max_so_far_gap"))
if max_so_far_gap is None and max_so_far is not None and deb_prediction is not None:
max_so_far_gap = deb_prediction - max_so_far
samples.append(
{
"city": city,
"date": date_str,
"actual_high": actual_high,
"raw_mu": raw_mu,
"raw_sigma": raw_sigma,
"deb_prediction": deb_prediction,
"ens_median": ens_median,
"ensemble_spread": ensemble_spread,
"max_so_far_gap": max_so_far_gap,
"peak_flag": peak_flag,
"sample_source": "daily_record",
"settlement_source": truth_meta.get("settlement_source"),
"settlement_station_code": truth_meta.get("settlement_station_code"),
"truth_version": truth_meta.get("truth_version"),
"truth_updated_by": truth_meta.get("updated_by"),
"truth_updated_at": truth_meta.get("truth_updated_at"),
}
)
return samples, filled_actual_from_history
def _extract_samples(history, training_feature_history=None, truth_history=None, settlement_history=None, snapshot_rows=None):
snapshot_samples, snapshot_filled = _extract_snapshot_samples(
history,
truth_history=truth_history,
snapshot_rows=snapshot_rows or [],
settlement_history=settlement_history,
)
excluded_keys = {
(sample["city"], sample["date"])
for sample in snapshot_samples
}
daily_samples, daily_filled = _extract_daily_record_samples(
history,
training_feature_history=training_feature_history,
truth_history=truth_history,
settlement_history=settlement_history,
excluded_keys=excluded_keys,
)
return snapshot_samples + daily_samples, snapshot_filled + daily_filled
def merge_samples_with_legacy_archive(samples, legacy_samples=None):
merged = []
seen = set()
for sample in samples or []:
if not isinstance(sample, dict):
continue
key = (
str(sample.get("city") or "").strip().lower(),
str(sample.get("date") or "").strip(),
str(sample.get("sample_source") or "").strip().lower(),
)
if not key[0] or not key[1]:
continue
if key in seen:
continue
merged.append(sample)
seen.add(key)
for sample in legacy_samples or []:
if not isinstance(sample, dict):
continue
key = (
str(sample.get("city") or "").strip().lower(),
str(sample.get("date") or "").strip(),
str(sample.get("sample_source") or "").strip().lower(),
)
if not key[0] or not key[1]:
continue
if key in seen:
continue
merged.append(sample)
seen.add(key)
return merged
def main():
parser = argparse.ArgumentParser(description="Fit PolyWeather probability calibration parameters.")
parser.add_argument(
"--history-file",
default=_default_history_arg(),
help="Optional legacy daily_records.json path. In sqlite mode this defaults to the runtime database.",
)
parser.add_argument(
"--output",
default=DEFAULT_CALIBRATION_FILE,
help="Output JSON file for fitted calibration parameters.",
)
parser.add_argument(
"--settlement-history",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"settlement_history.json",
),
help="Optional daily settlement history JSON built from historical CSV files.",
)
parser.add_argument(
"--snapshot-file",
default=_default_snapshot_arg(),
help="Optional legacy JSONL snapshot archive path. In sqlite mode this defaults to the runtime database.",
)
parser.add_argument(
"--version",
default=None,
help="Optional explicit calibration version.",
)
parser.add_argument(
"--snapshot-limit",
type=int,
default=_env_int("POLYWEATHER_EMOS_TRAINING_SNAPSHOT_LIMIT"),
help="Optional max number of recent probability snapshots to load from SQLite.",
)
parser.add_argument(
"--verbose",
action="store_true",
help="Print data loading and fitting progress.",
)
args = parser.parse_args()
_log(args.verbose, "loading daily records")
history = _load_history_with_fallback(args.history_file)
_log(args.verbose, f"loaded daily record cities={len(history or {})}")
_log(args.verbose, "loading training feature history")
training_feature_history = _load_training_feature_history()
_log(args.verbose, f"loaded training feature cities={len(training_feature_history or {})}")
_log(args.verbose, "loading truth history")
truth_history = _load_truth_history()
_log(args.verbose, f"loaded truth cities={len(truth_history or {})}")
_log(args.verbose, "loading settlement history")
settlement_history = _load_json_if_exists(args.settlement_history)
_log(args.verbose, f"loaded settlement history cities={len(settlement_history or {})}")
_log(
args.verbose,
"loading probability snapshots"
+ (f" limit={args.snapshot_limit}" if args.snapshot_limit else ""),
)
snapshot_rows = _load_snapshot_rows(args.snapshot_file, limit=args.snapshot_limit)
_log(args.verbose, f"loaded probability snapshots={len(snapshot_rows or [])}")
_log(args.verbose, "loading legacy training archive")
legacy_training_samples = _load_legacy_training_samples()
_log(args.verbose, f"loaded legacy training samples={len(legacy_training_samples or [])}")
_log(args.verbose, "extracting EMOS samples")
samples, filled_actual_from_history = _extract_samples(
history,
training_feature_history=training_feature_history,
truth_history=truth_history,
settlement_history=settlement_history,
snapshot_rows=snapshot_rows,
)
samples = merge_samples_with_legacy_archive(samples, legacy_training_samples)
_log(args.verbose, f"fitting calibration samples={len(samples or [])}")
calibration = fit_calibration(samples, version=args.version)
if not samples:
calibration = default_calibration_payload(
version=args.version,
reason="no_samples",
)
calibration.setdefault("metrics", {})
calibration["metrics"]["filled_actual_from_history"] = filled_actual_from_history
calibration["metrics"]["settlement_history_city_count"] = len(settlement_history)
calibration["metrics"]["legacy_archive_samples"] = len(legacy_training_samples)
try:
calibration["source"] = os.path.relpath(args.output, PROJECT_ROOT)
except ValueError:
calibration["source"] = os.path.abspath(args.output)
output_dir = os.path.dirname(os.path.abspath(args.output))
if output_dir:
os.makedirs(output_dir, exist_ok=True)
with open(args.output, "w", encoding="utf-8") as fh:
json.dump(calibration, fh, ensure_ascii=False, indent=2)
_log(args.verbose, "done")
print(
"saved calibration to {path} with {count} samples".format(
path=args.output,
count=calibration.get("metrics", {}).get("sample_count", 0),
)
)
if __name__ == "__main__":
main()
-56
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@@ -1,56 +0,0 @@
import argparse
import json
import os
import sys
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from src.analysis.probability_rollout import build_rollout_report # noqa: E402
def main():
parser = argparse.ArgumentParser(description="Judge whether EMOS is ready for primary rollout.")
parser.add_argument(
"--evaluation-report",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"evaluation_report.json",
),
)
parser.add_argument(
"--shadow-report",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"shadow_report.json",
),
)
parser.add_argument(
"--output",
default=os.path.join(
PROJECT_ROOT,
"artifacts",
"probability_calibration",
"rollout_report.json",
),
)
args = parser.parse_args()
payload = build_rollout_report(args.evaluation_report, args.shadow_report)
output_dir = os.path.dirname(os.path.abspath(args.output))
if output_dir:
os.makedirs(output_dir, exist_ok=True)
with open(args.output, "w", encoding="utf-8") as fh:
json.dump(payload, fh, ensure_ascii=False, indent=2)
print(json.dumps(payload["decision"], ensure_ascii=False, indent=2))
print(f"saved rollout report to {args.output}")
if __name__ == "__main__":
main()
-78
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@@ -1,78 +0,0 @@
from __future__ import annotations
import json
import os
import sys
from typing import Any, Dict
ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
SCHEMA_PATH = os.path.join(ROOT_DIR, "artifacts", "models", "lgbm_daily_high_schema.json")
def _load_schema(path: str) -> Dict[str, Any]:
with open(path, "r", encoding="utf-8") as fh:
data = json.load(fh)
if not isinstance(data, dict):
raise SystemExit(f"Invalid schema payload in {path}")
return data
def _fmt_metric(value: Any) -> str:
if value is None:
return "--"
try:
return f"{float(value):.3f}"
except Exception:
return str(value)
def _winner(metrics: Dict[str, Any]) -> str:
candidates = {
"LGBM": metrics.get("lgbm_mae"),
"DEB": metrics.get("deb_mae"),
"Best Single": metrics.get("best_single_mae"),
"Median": metrics.get("median_mae"),
}
filtered = {k: float(v) for k, v in candidates.items() if v is not None}
if not filtered:
return "--"
return min(filtered.items(), key=lambda item: item[1])[0]
def _print_block(label: str, metrics: Dict[str, Any]) -> None:
print(label)
print(f" Samples : {metrics.get('sample_count', 0)}")
print(f" LGBM MAE : {_fmt_metric(metrics.get('lgbm_mae'))}")
print(f" DEB MAE : {_fmt_metric(metrics.get('deb_mae'))}")
print(f" Best Single : {_fmt_metric(metrics.get('best_single_mae'))}")
print(f" Model Median : {_fmt_metric(metrics.get('median_mae'))}")
print(f" Winner : {_winner(metrics)}")
def main() -> int:
path = sys.argv[1] if len(sys.argv) > 1 else SCHEMA_PATH
if not os.path.exists(path):
raise SystemExit(f"Schema file not found: {path}")
schema = _load_schema(path)
metrics = schema.get("metrics") or {}
validation = metrics.get("validation") or {}
full_sample = metrics.get("full_sample") or {}
print("LightGBM Daily High Report")
print(f" Target : {schema.get('target', '--')}")
print(f" Horizon : {schema.get('horizon', '--')}")
print(f" Sample Count : {schema.get('sample_count', 0)}")
print(f" Train Count : {schema.get('train_count', 0)}")
print(f" Valid Count : {schema.get('validation_count', 0)}")
print(f" Trained At : {schema.get('trained_at', '--')}")
print("")
_print_block("Validation", validation)
print("")
_print_block("Full Sample", full_sample)
return 0
if __name__ == "__main__":
raise SystemExit(main())
-202
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@@ -1,202 +0,0 @@
from __future__ import annotations
import json
import os
import sys
from datetime import datetime
from typing import Any, Dict, List
ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
MODEL_PATH = os.path.join(ROOT_DIR, "artifacts", "models", "lgbm_daily_high.txt")
SCHEMA_PATH = os.path.join(ROOT_DIR, "artifacts", "models", "lgbm_daily_high_schema.json")
def _mae(pairs: List[tuple[float, float]]) -> float | None:
if not pairs:
return None
return round(sum(abs(pred - actual) for pred, actual in pairs) / len(pairs), 3)
def _best_single_forecast(sample: Dict[str, Any]) -> float | None:
target = float(sample["target"])
forecasts = sample.get("forecasts") or {}
best_value = None
best_error = None
for value in forecasts.values():
try:
numeric = float(value)
except Exception:
continue
error = abs(numeric - target)
if best_error is None or error < best_error:
best_error = error
best_value = numeric
return best_value
def _chronological_split(samples: List[Dict[str, Any]]) -> tuple[List[Dict[str, Any]], List[Dict[str, Any]]]:
if len(samples) < 12:
return samples, []
ordered = sorted(samples, key=lambda row: (row["date"], row["city"]))
validation_count = max(12, int(round(len(ordered) * 0.2)))
validation_count = min(validation_count, len(ordered) - 1)
if validation_count <= 0:
return ordered, []
return ordered[:-validation_count], ordered[-validation_count:]
def _dataset_from_samples(samples: List[Dict[str, Any]], np: Any) -> tuple[Any, Any]:
features = np.asarray([row["vector"] for row in samples], dtype=np.float32)
targets = np.asarray([row["target"] for row in samples], dtype=np.float32)
return features, targets
def _train_model(
train_samples: List[Dict[str, Any]],
valid_samples: List[Dict[str, Any]],
lgb: Any,
np: Any,
feature_names: List[str],
) -> Any:
train_x, train_y = _dataset_from_samples(train_samples, np)
train_data = lgb.Dataset(train_x, label=train_y, feature_name=feature_names, free_raw_data=True)
valid_sets = [train_data]
valid_names = ["train"]
params = {
"objective": "regression",
"metric": "l1",
"learning_rate": 0.05,
"num_leaves": 15,
"feature_fraction": 0.9,
"bagging_fraction": 0.9,
"bagging_freq": 1,
"min_data_in_leaf": 4,
"verbosity": -1,
"seed": 42,
}
callbacks = []
if valid_samples:
valid_x, valid_y = _dataset_from_samples(valid_samples, np)
valid_data = lgb.Dataset(valid_x, label=valid_y, feature_name=feature_names, reference=train_data)
valid_sets.append(valid_data)
valid_names.append("valid")
callbacks.append(lgb.early_stopping(stopping_rounds=15, verbose=False))
return lgb.train(
params=params,
train_set=train_data,
num_boost_round=120,
valid_sets=valid_sets,
valid_names=valid_names,
callbacks=callbacks,
)
def _evaluate(booster: Any, samples: List[Dict[str, Any]], np: Any) -> Dict[str, Any]:
if not samples:
return {
"sample_count": 0,
"lgbm_mae": None,
"deb_mae": None,
"best_single_mae": None,
"median_mae": None,
}
features, _ = _dataset_from_samples(samples, np)
preds = booster.predict(features, num_iteration=booster.best_iteration)
lgbm_pairs: List[tuple[float, float]] = []
deb_pairs: List[tuple[float, float]] = []
best_single_pairs: List[tuple[float, float]] = []
median_pairs: List[tuple[float, float]] = []
for sample, pred in zip(samples, preds):
actual = float(sample["target"])
lgbm_pairs.append((float(pred), actual))
deb_prediction = sample.get("deb_prediction")
if deb_prediction is not None:
deb_pairs.append((float(deb_prediction), actual))
best_single = _best_single_forecast(sample)
if best_single is not None:
best_single_pairs.append((best_single, actual))
median_prediction = (sample.get("features") or {}).get("model_median")
if median_prediction is not None:
median_pairs.append((float(median_prediction), actual))
return {
"sample_count": len(samples),
"lgbm_mae": _mae(lgbm_pairs),
"deb_mae": _mae(deb_pairs),
"best_single_mae": _mae(best_single_pairs),
"median_mae": _mae(median_pairs),
}
def main() -> int:
if ROOT_DIR not in sys.path:
sys.path.insert(0, ROOT_DIR)
import lightgbm as lgb
import numpy as np
from src.models.lgbm_features import (
FEATURE_NAMES,
build_training_samples,
schema_payload,
)
samples = build_training_samples()
if len(samples) < 16:
raise SystemExit(f"Not enough supervised samples for LightGBM training: {len(samples)}")
train_samples, valid_samples = _chronological_split(samples)
booster = _train_model(train_samples, valid_samples, lgb, np, FEATURE_NAMES)
all_features, all_targets = _dataset_from_samples(samples, np)
final_train = lgb.Dataset(all_features, label=all_targets, feature_name=FEATURE_NAMES, free_raw_data=True)
final_booster = lgb.train(
params={
"objective": "regression",
"metric": "l1",
"learning_rate": 0.05,
"num_leaves": 15,
"feature_fraction": 0.9,
"bagging_fraction": 0.9,
"bagging_freq": 1,
"min_data_in_leaf": 4,
"verbosity": -1,
"seed": 42,
},
train_set=final_train,
num_boost_round=max(int(booster.best_iteration or 60), 20),
)
os.makedirs(os.path.dirname(MODEL_PATH), exist_ok=True)
final_booster.save_model(MODEL_PATH)
metrics = {
"validation": _evaluate(booster, valid_samples, np),
"full_sample": _evaluate(final_booster, samples, np),
}
schema = schema_payload(
model_path=os.path.relpath(MODEL_PATH, ROOT_DIR),
sample_count=len(samples),
train_count=len(train_samples),
validation_count=len(valid_samples),
metrics=metrics,
)
schema["trained_at"] = datetime.utcnow().isoformat() + "Z"
with open(SCHEMA_PATH, "w", encoding="utf-8") as fh:
json.dump(schema, fh, ensure_ascii=False, indent=2)
print(json.dumps({"model_path": MODEL_PATH, "schema_path": SCHEMA_PATH, "metrics": metrics}, ensure_ascii=False))
return 0
if __name__ == "__main__":
raise SystemExit(main())