{% extends "study/base.html" %}
{% block title %}FSRS optimizer{% endblock %}
{% block content %}
{% include "study/settings_tabs.html" %}
<h1>FSRS optimizer</h1>
<p class="muted">Fits the 19 FSRS-5 weights to <em>your</em> review history by minimising log-loss (Adam, finite-difference gradients, weights clipped to the published bounds). Needs at least {{ min_reviews }} scored reviews (reviews on a later day than the previous one); you have <b>{{ scored }}</b>.</p>
<div class="actions">
  <form method="post">{% csrf_token %}<button class="btn primary" {% if scored < min_reviews %}disabled{% endif %}>Optimize my parameters</button></form>
  {% if params %}<form method="post">{% csrf_token %}<input type="hidden" name="action" value="reset"><button class="btn">Reset to defaults</button></form>{% endif %}
</div>
{% if params %}
<div class="tiles">
  <div class="tile"><b>{{ params.review_count }}</b><span>reviews fitted</span></div>
  <div class="tile"><b>{{ params.log_loss_before|floatformat:4 }} → {{ params.log_loss_after|floatformat:4 }}</b><span>log-loss</span></div>
  <div class="tile"><b>{{ rmse_before|floatformat:2 }}% → {{ rmse_after|floatformat:2 }}%</b><span>RMSE (bins)</span></div>
  <div class="tile"><b>{{ params.optimized_at|date:"Y-m-d H:i" }}</b><span>optimized</span></div>
</div>
{% endif %}
<table class="grid narrow-table">
  <thead><tr><th>w</th><th class="num">Current</th><th class="num">Default</th><th class="num">Bounds</th></tr></thead>
  <tbody>{% for i, w, d, lo, hi in rows %}<tr><td>w{{ i }}</td><td class="num">{{ w|floatformat:4 }}</td><td class="num muted">{{ d|floatformat:4 }}</td><td class="num muted">{{ lo }} – {{ hi }}</td></tr>{% endfor %}</tbody>
</table>
<p class="muted small">Command line: <code>python manage.py optimize_fsrs --user demo</code>. Algorithm notes: docs/fsrs.md.</p>
{% endblock %}