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split-vlm-repro-bundle

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<!DOCTYPE html>
<!--
  Vendored + adapted into posterly from ARIS (Auto-claude-code-research-in-sleep),
  skill paper-poster-html. Origin: https://github.com/wanshuiyin/Auto-claude-code-research-in-sleep
  Upstream tokenization: MIT (c) 2026 wanshuiyin -- ../LICENSES/aris-MIT.txt
  This is the tokenized form of posterly's own neutral template; the class names and
  content are posterly's own (c) 2026 Ruishuo Chen. As an adapted derivative this file
  ships as part of posterly under AGPL-3.0. See ../NOTICE.md.
-->
<!--
  ============================================================
  TEMPLATE: portrait_2col  (ARIS fork of posterly portrait_2col_neutral)
  Adapted from posterly (MIT, © 2026 Ruishuo Chen) — see LICENSES/ & NOTICE.md;
  ARIS modifications: flat de-gradient, --fs token scale, zero-inline-style
  utilities, data-source/data-color-exempt contracts.

  CANVAS:   24in × 36in PORTRAIT (ICLR / CVPR / many workshops default) DEFAULT.
            CANVAS RETARGETING: change BOTH the @page `size` (one place, in the
            CANVAS block below) AND the .poster `width`/`height` (one place, in
            the .poster rule). Keep them in sync.
            NOTE — ICLR workshops commonly mandate a 61×91 cm PORTRAIT board
            (A0-ish portrait). To retarget to that:
              @page { size: 610mm 910mm; }    /* or 61cm 91cm */
              .poster { width: calc(610 * var(--u)); height: calc(910 * var(--u)); }
            (1 print --u = 1mm, so 610/910 u == 610/910 mm == 61×91 cm — almost
            identical to the shipped 24×36in default, which is why portrait is a
            good fit for ICLR-workshop boards.)
  LAYOUT:   header → body 2 columns → footer
            (NO framework banner, NO takeaways strip — vertical space is precious)
  USE WHEN: venue mandates portrait orientation, sub-A0/A1 size;
            reader scans top-to-bottom in column 1, then jumps to column 2.
  HOW TO USE:
    1. Copy this file to your working directory as `poster.html`.
    2. Edit the DESIGN TOKENS in `:root` (or swap a tokens/*.json palette) —
       the token block is the ONLY place color/font-size literals may live.
    3. Replace TODO content placeholders (search for "TODO").
    4. Run `python3 tools/run_gates.py poster.html` (the default driver: preflight -> style -> measure -> polish) to align columns and check style/structure.
    5. Run `python3 tools/render_preview.py poster.html` to produce the PDF.
  STYLE CONTRACT (ARIS source gate, tools/style_check.py):
    - NO inline `style=` attributes anywhere in the markup. Use the utility
      classes (.fs-N, .mt-N, .mb-N, .w-NN, .text-secondary, .nowrap,
      .text-center) defined in the UTILITIES block below.
      Sole exceptions: the internal SVG of a `data-color-exempt="logo"` element,
      and a `style="width: NN%"` on a `data-source="paper"` <img> (AR width tweak).
    - All font-size values reference a `--fs-1..9` token (or a COMPONENTS.md
      predefined `calc(var(--fs-N) * k)` variant such as `.eqn--large`).
    - No `linear-gradient`; the only gradient allowed is the .poster radial
      tint (every color stop alpha ≤ 0.06).
  MEASURE ROLES: every layout-critical element carries `data-measure-role`.
  Generic measurement scripts depend on these — do not remove.
  ============================================================
-->
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SPLIT-VLM — A Reproduction (ICML 2026)</title>

<!-- MathJax v3 for inline equations. CDN by default; to go offline,
     download a MathJax v3 release into assets/mathjax/ and change the <script>
     `src` below to "assets/mathjax/es5/tex-svg.js". -->
<script>
  window.MathJax = {
    tex: {
      inlineMath: [['$', '$'], ['\\(', '\\)']],
      displayMath: [['$$', '$$'], ['\\[', '\\]']],
      packages: {'[+]': ['ams']}
    },
    svg: { fontCache: 'global' }
  };
</script>
<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js"></script>

<style>
  /* =========================================================
     CANVAS — 24" × 36" PORTRAIT
     24in × 25.4 mm/in = 609.6 mm ≈ 610 u (width)
     36in × 25.4 mm/in = 914.4 mm ≈ 914 u (height)
     RETARGET: change @page size here AND .poster width/height below.
     ICLR workshop = 610mm 910mm (61×91 cm) portrait — see header note.
     ========================================================= */
  @page { size: 24in 36in; margin: 0; }

  :root {
    /* ===== DESIGN TOKENS ===== */
    /* The ONLY place color / font-size literals are allowed (style_check
       rule 1 + 8 locate this block by the comment pair). Override token
       VALUES here only — never restyle component rules with new literals.
       To rebrand, edit these or load a tokens/*.json palette. */

    /* Primary accent (header underline, card-highlight bar, section nums, .keyword) */
    --accent:        #2D5F8B;
    --accent-deep:   #1F4566;
    --accent-light:  #E8F1F8;
    --accent-soft:   #D7E5F0;

    /* Secondary accent for "ours / best" emphasis (table .ours row, "★" callouts) */
    --gold:          #C9A24A;
    --gold-soft:     #FFF7E0;

    /* Text */
    --text-primary:   #1A1A1A;
    --text-secondary: #555555;
    --text-muted:     #888888;

    /* Backgrounds */
    --bg-page:        #F6F2F0;
    --bg-card:        #FFFFFF;
    --bg-card-tint:   #FAFAFB;
    --bg-emphasis:    var(--accent-light);

    /* Borders */
    --border-soft:    #D8D8D8;
    --border-strong:  var(--accent);

    /* Screen-preview backdrop only — @media print overrides body to white.
       Tokenized so no color literal escapes the token block (style_check rule 1). */
    --bg-screen:      #2b2b2b;

    /* Base unit. Print: 1mm; screen preview: 1.6px (~3.78px = 1mm at 96dpi). */
    --u: 1.6px;

    /* Font-size scale (9 steps). Every font-size in this template references
       one of these. Off-scale px drift is forbidden (style_check rule 8);
       `calc(var(--fs-N) * k)` is allowed ONLY for COMPONENTS.md variants.
       The posterly portrait original used a few off-scale sizes (28u title,
       17u section title, 14u subtitle/eqn/callout); they are snapped to the
       nearest scale token here so the template stays at exactly 9 steps. */
    --fs-1: calc(9 * var(--u));    /* micro label                */
    --fs-2: calc(10 * var(--u));   /* small caption              */
    --fs-3: calc(11 * var(--u));   /* caption / table            */
    --fs-4: calc(12 * var(--u));   /* body text                  */
    --fs-5: calc(13 * var(--u));   /* equation / emphasis        */
    --fs-6: calc(15 * var(--u));   /* subtitle                   */
    --fs-7: calc(16 * var(--u));   /* section title              */
    --fs-8: calc(22 * var(--u));   /* banner number              */
    --fs-9: calc(32 * var(--u));   /* main title                 */

    /* Fonts. Override at :root if your venue mandates a specific family.
       Whitelist (style_check rule 7): serif body, sans heads, mono code. */
    --font-serif: "Charter", "Source Serif Pro", "Georgia", serif;
    --font-sans:  "Inter", "Helvetica Neue", sans-serif;

    /* Shadows & watermark ink — tokenized so rules 1/3 stay literal-free
       (the faint radial page tint is the ONE allowed literal outside this
       block; rule 5 validates it WHEN ENABLED -- the style gate ships with rules 4-5 off). */
    --shadow-screen: 0 0 60px rgba(0, 0, 0, 0.5);
    --shadow-card: 0 calc(2 * var(--u)) calc(6 * var(--u)) rgba(45, 95, 139, 0.05);
    --ornament-ink: rgba(45, 95, 139, 0.06);
    /* ===== END DESIGN TOKENS ===== */
  }

  /* =========================================================
     RESET + BASE
     ========================================================= */
  * { box-sizing: border-box; margin: 0; padding: 0; }

  html, body {
    background: var(--bg-screen);
    font-family: var(--font-serif);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
  }

  /* Poster container — exact print dimensions; data-measure-role="poster" so
     poster_check.py can verify the canvas size.
     Width  : 610u ≈ 24in.
     Height : 914u ≈ 36in.
     RETARGET: width/height must track @page size (see CANVAS block). */
  .poster {
    width: calc(610 * var(--u));
    height: calc(914 * var(--u));
    background: var(--bg-page);
    /* The only gradient the catalog sanctions (rule 5 enforces it only when re-enabled): a low-alpha radial tint
       (every color stop alpha ≤ 0.06). NOT a linear-gradient. */
    background-image:
      radial-gradient(ellipse at top left,    rgba(45, 95, 139, 0.06), transparent 40%),
      radial-gradient(ellipse at bottom right, rgba(201, 162, 74, 0.05), transparent 50%);
    margin: 20px auto;
    padding: calc(10 * var(--u)) calc(12 * var(--u));
    display: grid;
    /* header | body | footer — no banner row, no takeaways row */
    grid-template-rows: auto 1fr auto;
    gap: calc(6 * var(--u));
    box-shadow: var(--shadow-screen);
    position: relative;
    overflow: hidden;
  }

  /* Decorative top bar — flat accent (de-gradiented from posterly original). */
  .poster::before {
    content: "";
    position: absolute; top: 0; left: 0; right: 0;
    height: calc(8 * var(--u));
    background: var(--accent);
  }

  /* =========================================================
     HEADER — same 3-col structure as landscape sibling
     (venue badge | title-block | logo+QR), but compressed vertically
     by ~1u of padding since portrait is narrower.
     ========================================================= */
  .header {
    display: grid;
    grid-template-columns: 1fr minmax(50%, auto) 1fr;   /* equal side tracks (1fr) -> the title track is centred on the poster, not just between the side blocks; the centre track is floored at 50% so a one-line title still fills it (else a short title measures narrow and trips a false HEADER/TITLE-SQUEEZED). Best-effort: a side block wide enough to clamp its 1fr track can still pull the title off-centre. */
    align-items: center;
    gap: calc(14 * var(--u));
    padding: calc(1 * var(--u)) calc(3 * var(--u)) calc(4 * var(--u));
    border-bottom: calc(2 * var(--u)) solid var(--accent);
  }

  .venue-badge {
    justify-self: start;          /* anchor to the far-left edge so the centre track stays centred */
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    min-width: calc(80 * var(--u));
    text-align: center;
    border-right: calc(1 * var(--u)) solid var(--border-soft);
    padding-right: calc(10 * var(--u));
  }
  /* Portrait venue mark: snapped 28u -> --fs-9 (32u). */
  .venue-badge .vb-venue {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--fs-9);
    color: var(--accent-deep);
    line-height: 1;
    letter-spacing: -0.5px;
  }
  .venue-badge .vb-year {
    font-family: var(--font-sans);
    font-size: var(--fs-4);
    color: var(--text-secondary);
    margin-top: calc(3 * var(--u));
    letter-spacing: 1.2px;
  }
  .venue-badge .vb-tag {
    font-family: var(--font-sans);
    font-size: var(--fs-2);
    color: var(--accent);
    font-weight: 700;
    margin-top: calc(2 * var(--u));
    letter-spacing: 1.2px;
  }

  .title-block { text-align: center; min-width: 0; }
  /* Portrait title snapped 28u -> --fs-9 (32u). The reader is closer and the
     canvas is narrower, so the type still feels appropriately scaled. */
  .title {
    font-family: var(--font-sans);
    font-weight: 800;
    font-size: var(--fs-9);
    line-height: 1.05;
    color: var(--accent-deep);
    letter-spacing: -0.5px;
  }
  .title .accent { color: var(--gold); }
  /* subtitle snapped 14u -> --fs-6 (15u). */
  .subtitle {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: var(--fs-6);
    color: var(--text-secondary);
    margin-top: calc(2 * var(--u));
    font-style: italic;
  }
  .authors-line {
    font-family: var(--font-sans);
    font-size: var(--fs-5);
    color: var(--accent);
    font-weight: 600;
    margin-top: calc(3 * var(--u));
  }
  .authors-line .author { margin: 0 calc(4 * var(--u)); }
  .authors-line sup { font-size: 0.7em; color: var(--accent); }
  .authors-line .aff {
    color: var(--text-secondary);
    font-weight: 400;
    display: block;
    margin-top: calc(2 * var(--u));
    font-size: var(--fs-3);
  }

  .right-block {
    justify-self: end;            /* keep logo+QR in the far-right corner */
    display: flex; align-items: center;
    gap: calc(8 * var(--u));
  }
  .qr-block { display: flex; flex-direction: column; align-items: center; gap: calc(2 * var(--u)); }
  .qr-block img {
    width: calc(75 * var(--u));
    height: calc(75 * var(--u));
    border: calc(2 * var(--u)) solid var(--accent);
    border-radius: calc(4 * var(--u));
    background: white;
    padding: calc(2 * var(--u));
  }
  .qr-label {
    font-family: var(--font-sans);
    font-size: var(--fs-2);
    color: var(--accent);
    font-weight: 600;
  }
  /* Optional logo slot — drop your lab logo here. Keep rendered height ~75u to
     match QR; otherwise the header grows and steals vertical space.
     LOGO CONTRACT: a logo whose own SVG/PNG carries brand colors must be
     marked `data-color-exempt="logo"` so style_check exempts it from the
     palette / inline-style gates, e.g.:
       <div class="logo-slot"><img src="assets/logos/lab.png" alt="Lab"
            data-color-exempt="logo"></div>
     Inline-SVG logos carry the attribute on the <svg> element itself. */
  .logo-slot img { height: calc(75 * var(--u)); width: auto; max-width: calc(300 * var(--u)); object-fit: contain; display: block; }
  /* Logo size classes on .logo-slot -- pick from the file's aspect ratio (SKILL.md Gate E).
     tall/square sit at the QR-matched slot height; wide is intentionally shorter (~68% of the
     QR) and width-capped so a long wordmark doesn't out-mass the title. Do NOT combine these
     with logo-stack (that row is width-normalized, below). */
  .logo-slot.logo-tall img,
  .logo-slot.logo-square img { height: calc(75 * var(--u)); }
  .logo-slot.logo-wide img  { height: calc(51 * var(--u)); max-width: calc(125 * var(--u)); }   /* <22% of the ~586u portrait header */
  /* Logo chip: a solid backing that keeps a transparent / edge-white logo legible on a
     colored/dark header (white chip) or a light header (.logo-chip-dark); the padding + radius
     fold a stray white box into a deliberate rounded tile (SKILL.md Gate E, Background). */
  .logo-chip {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--bg-card); border-radius: calc(3 * var(--u));
    padding: calc(3 * var(--u)) calc(4 * var(--u));
  }
  .logo-chip.logo-chip-dark { background: var(--text-primary); }
  /* logo-row: institution logos in the header right block (REAL logos the
     user provided — never fabricate a seal). Each img MUST carry
     data-color-exempt="logo"; height pairs with the QR. */
  .logo-row { display: flex; align-items: center; gap: calc(4 * var(--u)); }
  .logo-row img { height: calc(58 * var(--u)); width: auto; display: block; }
  .logo-row .lr-item {
    display: flex; flex-direction: column; align-items: center;
    gap: calc(2 * var(--u));
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: calc(3 * var(--u));
    padding: calc(3 * var(--u)) calc(5 * var(--u));
  }
  .logo-row .lr-item img { height: calc(48 * var(--u)); }
  .logo-row .lr-label {
    font-family: var(--font-sans); font-weight: 600; font-size: var(--fs-1);
    color: var(--text-secondary); text-align: center; line-height: 1.15;
  }
  /* logo-stack variant: WIDE WORDMARKS (AR >= ~2) normalized to EQUAL WIDTH
     and stacked vertically, left-aligned. Use when two wide wordmarks of
     different aspect ratio read unbalanced height-matched in a row (equal
     width lets the less-wide mark grow taller and aligns a clean block).
     NOT for a square seal or tall mark (equal width blows it up — keep those
     height-matched). Do NOT also apply the logo-wide/tall/square classes.
     Width stays under the LOGO/WIDE 22% cap (portrait header ~586u). */
  .logo-row.logo-stack { flex-direction: column; align-items: flex-start; gap: calc(6 * var(--u)); }
  .logo-row.logo-stack img { width: calc(118 * var(--u)); height: auto; }
  /* The narrow portrait header can't fit a logo-stack BESIDE the QR (the row
     would blow the right-block width gate); when a stack is present, drop the
     right-block to a column so the logos sit ABOVE the QR. */
  .right-block:has(.logo-stack) { flex-direction: column; align-items: flex-end; }
  /* venue badge may carry the official venue logo above its text line */
  .venue-badge img { height: calc(46 * var(--u)); width: auto; display: block; margin: 0 auto calc(2 * var(--u)); }
  .venue-badge .vb-title { font-family: var(--font-sans); font-weight: 800; font-size: var(--fs-5); color: var(--accent-deep); letter-spacing: 0.5px; }

  /* =========================================================
     BODY: 2 columns (portrait posters live and die on column balance)

     CRITICAL: Last-card bottoms of both columns must align —
     run poster_check.py measure poster.html — spread < 5 px required
     (< 3 px ideal). Gap to footer in 30–50 px.
     ========================================================= */
  .body-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(12 * var(--u));
    /* No overflow:hidden here — it would clip card shadows (pitfall #6).
       .poster already clips at the page boundary; min-height:0 is the
       grid-blowout guard. */
    min-height: 0;
  }
  .column {
    display: flex; flex-direction: column;
    gap: calc(7 * var(--u));
    min-height: 0;
    height: 100%;
    padding-bottom: calc(4 * var(--u));   /* shadow breathing room above footer */
  }

  /* =========================================================
     CARDS — identical tokens to sibling
     ========================================================= */
  .card {
    background: var(--bg-card);
    border-radius: calc(5 * var(--u));
    padding: calc(5 * var(--u)) calc(10 * var(--u));
    border: calc(1 * var(--u)) solid var(--border-soft);
    box-shadow: var(--shadow-card);
    position: relative;
  }
  .card.tinted    { background: var(--bg-card-tint); }
  .card.card--compact { padding: calc(3 * var(--u)) calc(7 * var(--u)); }   /* predefined variant: tighter padding (fix (f)) */
  /* .highlight de-gradiented: flat emphasis tint instead of a linear-gradient. */
  .card.highlight {
    border-left: calc(6 * var(--u)) solid var(--accent);
    background: var(--bg-emphasis);
  }

  /* section-title snapped 17u -> --fs-7 (16u). */
  .section-title {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: var(--fs-7);
    color: var(--accent-deep);
    margin-bottom: calc(3 * var(--u));
    display: flex; align-items: center;
    gap: calc(5 * var(--u));
  }
  /* Title text + any ★ marker share ONE .st-text span, so the heading wraps as
     natural text (hanging indent) instead of flex-wrapping atomic items: the
     number badge is never stranded on its own line and the ★ never widows. */
  .section-title .st-text { flex: 1; min-width: 0; line-height: 1.18; }
  /* Graceful fallback if a title is NOT wrapped in .st-text: float the badge so
     bare inline text still wraps beside it rather than dropping below it. */
  .section-title:not(:has(.st-text)) { display: block; line-height: 1.18; }
  .section-title:not(:has(.st-text)) .num { float: left; margin-right: calc(5 * var(--u)); }
  .section-title .num {
    display: inline-flex; align-items: center; justify-content: center;
    width: calc(24 * var(--u)); height: calc(24 * var(--u));
    background: var(--accent); color: white;
    border-radius: 50%;
    font-size: var(--fs-6); font-weight: 700;
    flex-shrink: 0;
  }
  /* Inline "★ key/headline" tag inside a section title (replaces inline styles). */
  .section-title .tag-key {
    color: var(--gold);
    font-size: var(--fs-4);
  }

  /* Body text — snapped 13u -> --fs-5. The 2-column portrait gives each column
     enough width to carry a meatier line height comfortably. */
  .body-text, .card p, .card li {
    font-family: var(--font-serif);
    font-size: var(--fs-5);
    line-height: 1.35;
    color: var(--text-primary);
  }
  .card ul, .card ol { padding-left: calc(20 * var(--u)); }
  .card li { margin-bottom: calc(2 * var(--u)); }

  .keyword       { color: var(--accent); font-weight: 700; }
  .keyword-gold  { color: var(--gold);   font-weight: 700; }
  .highlight-text {
    background: var(--bg-emphasis);
    padding: 0 calc(3 * var(--u));
    border-radius: calc(2 * var(--u));
  }

  /* Equation block — snapped 14u -> --fs-5 (13u). */
  .eqn {
    background: var(--bg-emphasis);
    border-left: calc(3 * var(--u)) solid var(--accent);
    padding: calc(4 * var(--u)) calc(10 * var(--u));
    margin: calc(4 * var(--u)) 0;
    font-size: var(--fs-5);
    overflow-x: hidden;
  }
  /* COMPONENTS.md predefined variant: a larger equation when a formula is the
     hero of a card. The `calc(var(--fs-N) * k)` form is allowed ONLY for
     registered variants like this one (style_check rule 8 / §12.5 nit 1). */
  .eqn--large { font-size: calc(var(--fs-5) * 1.25); }
  .eqn .label {
    display: block;
    font-family: var(--font-sans);
    font-size: var(--fs-2);
    color: var(--accent);
    font-weight: 600;
    margin-bottom: calc(2 * var(--u));
    text-transform: uppercase;
    letter-spacing: 1px;
  }

  /* Callout: solid accent for primary; solid gold for theorems / "★ key" strips
     (gold .callout de-gradiented to a flat fill). Snapped 13u -> --fs-5. */
  .callout {
    background: var(--accent);
    color: white;
    padding: calc(5 * var(--u)) calc(10 * var(--u));
    border-radius: calc(4 * var(--u));
    font-size: var(--fs-5);
    margin: calc(4 * var(--u)) 0;
  }
  .callout strong { color: var(--gold); }
  .callout.gold {
    background: var(--gold);
    color: var(--accent-deep);
  }
  .callout.gold strong { color: var(--accent-deep); }

  /* Figure container */
  .figure { margin: calc(4 * var(--u)) 0; text-align: center; }
  .figure img:not([class*="w-"]) { width: 100%; }
  .figure--wide img { width: 100%; }   /* predefined variant: force full card width over any .w-NN (fix (f)) */
  .figure img {
    /* FIGURE CONTRACT: figures must come from the paper:
         <img src="assets/paper_figures/x.png" data-source="paper"
              data-asset-id="x" class="w-100">
       data-source/data-asset-id are required by asset_check + exempt the
       image from style_check's palette gate. Use .w-NN utilities (not an
       inline width) to size it; the only inline-style exception the gate
       allows is `style="width: NN%"` on a data-source="paper" <img>. */
    border-radius: calc(4 * var(--u));
    border: calc(1 * var(--u)) solid var(--border-soft);
    background: white;
  }
  .figure .caption {
    font-family: var(--font-sans);
    font-size: var(--fs-3);
    color: var(--text-secondary);
    margin-top: calc(3 * var(--u));
    line-height: 1.3;
    text-align: left;
  }
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  }
</style>
</head>
<body>

<div class="poster" data-measure-role="poster">

  <!-- =========================== HEADER =========================== -->
  <header class="header" data-measure-role="header">
    <!-- LEFT: venue badge. Replace text or swap for an <img> if your venue allows logos. -->
    <div class="venue-badge">
      <div class="vb-venue">ICML</div>
      <div class="vb-year">2026</div>
      <div class="vb-tag">REPRO</div>
    </div>

    <!-- CENTER: title block. Portrait posters are read from closer up, and the
         canvas is narrower, so the title still reads big at --fs-9. -->
    <div class="title-block">
      <h1 class="title">SPLIT-VLM: <span class="accent">Attention-Free</span> Vision-Token Dropping <span class="tag-key fs-3">[ A Reproduction ]</span></h1>
      <div class="subtitle">Reproducing salience-guided partitioning for importance-aware token dropping in VLMs (OpenReview Elm4TdaXi0)</div>
      <div class="authors-line">
        <span class="author">Reproduction by Claude (Anthropic)<sup>&#9993;</sup></span>
        <span class="aff">Original: Seungil Lee, Gilha Lee, Hyun Kim &middot; Seoul Nat. Univ. of Science &amp; Technology</span>
      </div>
    </div>

    <!-- RIGHT: optional logo + QR. Delete .logo-slot if your venue forbids on-poster logos. -->
    <div class="right-block">
      <div class="qr-block">
        <!-- TODO: replace with your real QR code. The default below is an inline
             SVG placeholder so the template renders offline. The QR is a
             monochrome black/white SVG (data-color-exempt="logo" marks it as a
             non-palette graphic for style_check). Generate a real one with:
               $ qrencode -o qr.png -s 12 -m 0 "https://your-url"     # apt install qrencode
               $ python -c "import qrcode; qrcode.make('https://your-url').save('qr.png')"
             then change src to "assets/qr/qr.png" (export at >= 2x rendered size). -->
        <img data-color-exempt="logo" src="assets/qr.png" alt="QR code linking to the reproduction collection on Hugging Face">
        <div class="qr-label">Artifacts &amp; Code</div>
      </div>
    </div>
  </header>

  <!-- ============================ BODY ============================
       2 columns. Each column should carry 4-5 cards. The last card of each
       column should typically be a takeaways / conclusion card so the
       reader exits with a clear message (we don't have a takeaways strip
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       ============================================================ -->
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    <!-- ============ COLUMN 1 ============ -->
    <div class="column" data-measure-role="column">

      <!-- Card 1: the paper + method -->
      <div class="card highlight" data-measure-role="card" data-logbook-target="methodology-setup" data-logbook-label="Method &amp; setup">
        <div class="section-title"><span class="num">1</span><span class="st-text">The Paper &amp; SPLIT</span></div>
        <p class="body-text">
          Prior token dropping trades <span class="keyword">salience</span> (attention — position-biased) against
          <span class="keyword">diversity</span> (coverage-unstable). <strong>SPLIT</strong> is training-free and unifies both:
        </p>
        <div class="eqn">
          <span class="label">1. Temporal-shift importance (attention-free)</span>
          $$I(x)=\tfrac{1}{|L|}\!\sum_{\ell\in L}\frac{\lVert h_\ell(x)-h_{\ell-1}(x)\rVert_2}{\lVert h_\ell(x)\rVert_2}$$
        </div>
        <div class="eqn">
          <span class="label">2. Adaptive region budget (K=16 regions)</span>
          $$\tilde B_k=\tfrac{B}{K}+B\cdot\frac{I(X_k)}{\sum_j I(X_j)}$$
        </div>
        <div class="eqn">
          <span class="label">3. Diversity selection ($\lambda{=}0.5$), keep top-$\tilde B_k$/region</span>
          $$D(i)=\lambda\,\sigma_i-\mu_i,\quad S_{ij}=\langle\hat x_i,\hat x_j\rangle$$
        </div>
      </div>

      <!-- Card 2: Claim 3 mechanism (KEY, figure) -->
      <div class="card highlight" data-measure-role="card" data-logbook-target="claim-3-temporal-shift-importance-attention-free" data-logbook-label="Claim 3 details">
        <div class="section-title"><span class="num">2</span><span class="st-text">Claim 3 &#10003; Reproduced&nbsp;<span class="tag-key">&#9733; KEY</span></span></div>
        <div class="figure">
          <img src="assets/fig_mechanism_heatmaps.png" data-source="paper" data-asset-id="mech" class="w-75" alt="Temporal-shift vs attention heatmaps over the patch grid">
          <div class="caption fs-2">
            Temporal-shift importance is <strong>spread</strong>; CLS attention <strong>collapses</strong> onto a few low-row tokens (position bias). SPLIT covers all 16 regions.
          </div>
        </div>
        <div class="callout gold">
          <strong>Attention-free &amp; unbiased:</strong> center-of-mass row 11.5 (=center) vs attention 12.7&ndash;13.6; Spearman(imp,&nbsp;attn) &#8776; &minus;0.7.
        </div>
      </div>

    </div>

    <!-- ============ COLUMN 2 ============ -->
    <div class="column" data-measure-role="column">

      <!-- Card 3: Claim 1 result figure -->
      <div class="card highlight" data-measure-role="card" data-logbook-target="claim-1-accuracy-retention-192-64-tokens" data-logbook-label="Claim 1 details">
        <div class="section-title"><span class="num">3</span><span class="st-text">Claim 1 &#8776; Trend reproduced&nbsp;<span class="tag-key fs-3">&#9733;</span></span></div>
        <p class="body-text text-secondary fs-3 mb-1">
          LLaVA-1.5-7B (MPS); POPE 150, TextVQA 60, ScienceQA 60; 576&#8594;192/128/64.
        </p>
        <div class="figure">
          <img src="assets/fig_relative_accuracy.png" data-source="paper" data-asset-id="results" class="w-90" alt="Relative accuracy vs token budget and TextVQA robustness">
          <div class="caption fs-2">
            <strong>Left:</strong> SPLIT degrades gracefully (~92&#8594;88%), above random. <strong>Right:</strong> on OCR TextVQA, random collapses at 64 tokens; SPLIT holds.
          </div>
        </div>
        <table class="result-table">
          <thead>
            <tr><th class="method">Avg rel. acc. (%)</th><th>192</th><th>128</th><th>64</th></tr>
          </thead>
          <tbody>
            <tr class="ref"><td class="method"><em>SPLIT (paper, 10&nbsp;bench)</em></td><td>99.3</td><td>97.8</td><td>92.8</td></tr>
            <tr class="ours"><td class="method">SPLIT (ours, 3&nbsp;bench)</td><td class="best">92.4</td><td class="best">89.3</td><td class="best">87.9</td></tr>
            <tr><td class="method">random (ours)</td><td>88.3</td><td>82.7</td><td>71.5</td></tr>
          </tbody>
        </table>
        <p class="body-text mt-2 fs-3">SPLIT &#8811; random; Claim 2's sub-2% SOTA margins sit <strong>below subset noise</strong>.</p>
      </div>

      <!-- Card 5: takeaways + scope -->
      <div class="card highlight" data-measure-role="card" data-logbook-target="conclusion" data-logbook-label="Conclusion &amp; scope">
        <div class="section-title"><span class="num">5</span><span class="st-text">Takeaways&nbsp;<span class="tag-key fs-3">&#9733;</span></span></div>
        <ul>
          <li><strong>Claim 3 &#10003;</strong> attention-free, unbiased, coverage-preserving.</li>
          <li><strong>Claim 1 &#8776;</strong> graceful degradation reproduced; absolute lower.</li>
          <li><strong>Claim 2 &#8211;</strong> not resolvable at this scale; SPLIT clearly beats random dropping.</li>
          <li><strong>Cost.</strong> Apple M1 Pro (MPS), ~1.5&nbsp;h, <strong>$0</strong> &mdash; HF Jobs was blocked (402).</li>
        </ul>
        <div class="callout gold mt-4">
          <strong>In one sentence:</strong> the attention-free mechanism reproduces cleanly; the headline accuracy needs the full 10-benchmark GPU suite.
        </div>
      </div>

    </div>

  </div>

  <!-- ============================ FOOTER ============================ -->
  <div class="footer" data-measure-role="footer">
    <div>
      <strong class="method-name">SPLIT-VLM</strong> &middot; ICML 2026 (Elm4TdaXi0) &middot;
      independent reproduction, training-free token dropping on LLaVA-1.5-7B.
    </div>
    <div>
      Artifacts: <span class="repo">hf.co/datasets/kpshinnik/split-vlm-repro-bundle</span> &nbsp;&middot;&nbsp;
      Paper: <span class="repo">openreview.net/forum?id=Elm4TdaXi0</span>
    </div>
  </div>

  <!-- Optional watermark — delete if you don't want it. -->
  <div class="ornament">LAB &middot; INSTITUTION</div>

</div>

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