ballast-repro / plot.py
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"""Figures for the BALLAST reproduction logbook (Plotly HTML + raw CSV)."""
from __future__ import annotations
import json
import os
import sys
import numpy as np
import plotly.graph_objects as go
OUT = "outputs"
COL = {
"unif": "#7f8c8d", "sobol": "#2980b9", "dist_sep": "#8e44ad",
"eig": "#e67e22", "ballast_opt": "#16a085", "ballast_true": "#c0392b",
}
NAME = {
"unif": "UNIF", "sobol": "SOBOL", "dist_sep": "DIST-SEP", "eig": "EIG",
"ballast_opt": "BALLAST-opt", "ballast_true": "BALLAST-true",
}
LAYOUT = dict(
template="plotly_white", font=dict(size=13), height=420,
margin=dict(l=60, r=20, t=50, b=50),
)
def _save(fig, name, csv_rows=None, header=None):
os.makedirs(OUT, exist_ok=True)
fig.write_html(f"{OUT}/{name}.html", include_plotlyjs="cdn")
if csv_rows is not None:
with open(f"{OUT}/{name}.csv", "w") as f:
f.write(",".join(header) + "\n")
for r in csv_rows:
f.write(",".join(str(x) for x in r) + "\n")
print("wrote", name)
def fig_spde_cost(path="outputs/raw/spde_cost/spde_cost.json"):
d = json.load(open(path))
rows = d["rows"]
n = [r["n_sampT"] for r in rows]
sp = [r["spde_s"] for r in rows]
nv = [r["naive_s"] for r in rows]
ok = [i for i, v in enumerate(nv) if v is not None]
fig = go.Figure()
fig.add_trace(go.Scatter(x=n, y=sp, name="SPDE (Sec. 4.1)", mode="lines+markers",
line=dict(color="#16a085", width=3)))
fig.add_trace(go.Scatter(x=[n[i] for i in ok], y=[nv[i] for i in ok],
name="naive dense", mode="lines+markers",
line=dict(color="#c0392b", width=3)))
# extrapolate the naive cubic to show where it goes
i0 = ok[-1]
ext = [x for x in n if x > n[i0]]
if ext:
fig.add_trace(go.Scatter(
x=[n[i0]] + ext,
y=[nv[i0]] + [nv[i0] * (x / n[i0]) ** 3 for x in ext],
name="naive (cubic extrapolation, out of memory)", mode="lines",
line=dict(color="#c0392b", width=2, dash="dot")))
fig.update_layout(
title="Posterior sampling cost: SPDE stays linear, naive dense goes cubic then out of memory",
xaxis=dict(title="N_sampT (sampled time slices)", type="log"),
yaxis=dict(title="seconds for J=20 samples (A100, fp64)", type="log"),
legend=dict(x=0.02, y=0.98), **LAYOUT)
_save(fig, "claim2_spde_cost",
[(r["n_sampT"], r["spde_s"], r["naive_s"], r["naive_cov_gb"]) for r in rows],
["n_sampT", "spde_seconds", "naive_seconds", "naive_cov_gb"])
def fig_ablation(path="outputs/claim5.json"):
d = json.load(open(path))
fig = go.Figure()
colors = {"3.0": "#2980b9", "5.0": "#16a085", "7.0": "#c0392b"}
rows = []
for t, r in d.items():
J = np.array(r["J"])
m = np.array(r["gap_mc_mean"])
s = np.array(r["gap_mc_se2"])
c = colors.get(str(t), "#333")
fig.add_trace(go.Scatter(x=J, y=m, name=f"BALLAST t={t}", mode="lines",
line=dict(color=c, width=2.5)))
fig.add_trace(go.Scatter(
x=np.concatenate([J, J[::-1]]), y=np.concatenate([m + s, (m - s)[::-1]]),
fill="toself", fillcolor=c.replace("#", "rgba(").replace("", "") if False else c,
opacity=0.15, line=dict(width=0), showlegend=False, hoverinfo="skip"))
fig.add_trace(go.Scatter(x=[J[0], J[-1]], y=[r["eig_gap_mc"]] * 2,
name=f"EIG t={t}", mode="lines",
line=dict(color=c, width=1.5, dash="dash")))
fig.add_trace(go.Scatter(x=[J[0], J[-1]], y=[r["unif_gap_mc"]] * 2,
name=f"UNIF t={t}", mode="lines",
line=dict(color=c, width=1.5, dash="dot")))
for j, v in zip(J, m):
rows.append((t, j, v))
fig.add_hline(y=1.0, line=dict(color="black", width=1))
fig.add_annotation(x=np.log10(120), y=np.log10(1.0), text="1% cut-off",
showarrow=False, yshift=10)
fig.add_vline(x=20, line=dict(color="#888", width=1, dash="dash"))
fig.update_layout(
title="Percentage utility gap vs Monte Carlo sample number J (2 s.e. bands)",
xaxis=dict(title="J (posterior field samples)", type="log"),
yaxis=dict(title="Monte Carlo % utility gap", type="log"),
**LAYOUT)
_save(fig, "claim5_ablation", rows, ["decision_time", "J", "gap_mc_pct"])
def fig_policy(path, tag, title):
d = json.load(open(path))
pols = d["policies"]
n_dep = d["n_deploy"]
x = np.arange(1, n_dep + 1)
# --- average rank
fig = go.Figure()
for i, p in enumerate(pols):
m = np.array(d["rank_mean"][i])
s = np.array(d["rank_se2"][i])
fig.add_trace(go.Scatter(x=x, y=m, name=NAME[p], mode="lines+markers",
line=dict(color=COL[p], width=2.5),
error_y=dict(type="data", array=s, visible=True, thickness=1)))
fig.update_layout(
title=f"{title}: average policy rank (1 = best), {d['n_runs']} runs",
xaxis=dict(title="drifters deployed"),
yaxis=dict(title="average rank"), **LAYOUT)
_save(fig, f"{tag}_rank",
[(p, i + 1, d["rank_mean"][j][i]) for j, p in enumerate(pols) for i in range(n_dep)],
["policy", "n_drifters", "mean_rank"])
# --- iso-performance
fig = go.Figure()
for p in pols:
if p == "unif":
continue
m = np.array(d["iso"][p]["mean"])
s = np.array(d["iso"][p]["se2"])
fig.add_trace(go.Scatter(x=x, y=m, name=NAME[p], mode="lines+markers",
line=dict(color=COL[p], width=2.5),
error_y=dict(type="data", array=s, visible=True, thickness=1)))
fig.add_hline(y=0, line=dict(color="#7f8c8d", width=1, dash="dash"))
fig.update_layout(
title=f"{title}: drifters saved vs UNIF (iso-performance), {d['n_runs']} runs",
xaxis=dict(title="drifters deployed"),
yaxis=dict(title="drifters saved (positive = better)"), **LAYOUT)
_save(fig, f"{tag}_iso",
[(p, i + 1, d["iso"][p]["mean"][i], d["iso"][p]["se2"][i])
for p in pols for i in range(n_dep)],
["policy", "n_drifters", "drifters_saved", "se2"])
# --- error curves
fig = go.Figure()
for p in pols:
m = np.array(d["err_mean"][p])
s = np.array(d["err_se2"][p])
fig.add_trace(go.Scatter(x=x, y=m, name=NAME[p], mode="lines",
line=dict(color=COL[p], width=2.5),
error_y=dict(type="data", array=s, visible=True, thickness=1)))
fig.update_layout(
title=f"{title}: field error vs drifters deployed, {d['n_runs']} runs",
xaxis=dict(title="drifters deployed"),
yaxis=dict(title="mean L2 error of posterior mean field"), **LAYOUT)
_save(fig, f"{tag}_error",
[(p, i + 1, d["err_mean"][p][i]) for p in pols for i in range(n_dep)],
["policy", "n_drifters", "mean_l2_error"])
if __name__ == "__main__":
which = sys.argv[1] if len(sys.argv) > 1 else "all"
if which in ("all", "spde"):
fig_spde_cost()
if which in ("all", "ablation") and os.path.exists("outputs/claim5.json"):
fig_ablation()
if which in ("all", "synth") and os.path.exists("outputs/claim3.json"):
fig_policy("outputs/claim3.json", "claim3", "Temporal Helmholtz ground truth")
if which in ("all", "suntans") and os.path.exists("outputs/claim4.json"):
fig_policy("outputs/claim4.json", "claim4", "SUNTANS ground truth")