HNSW vector index

<div class="v"><header><b>HNSW LAYERS</b><span id="state"></span></header><main><div class="hlevels" id="hlevels"></div><div class="hkey">upper jumps → lower refinement</div></main><footer>sparse graph → dense graph</footer></div>

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const rows=[["A","C"],["A","B","C"],["A","B","D","C"]];let step=0;function draw(){document.getElementById("hlevels").innerHTML=rows.map((row,layer)=>"<div class=hrow><small>L"+(2-layer)+"</small>"+row.map((node,i)=>"<b class='hnode "+(layer===Math.floor(step/2)&&i===(step%2?row.length-1:0)?"active":"")+"'>"+node+"</b>"+(i<row.length-1?"<i class=hline></i>":"")).join("")+"</div>").join("");document.getElementById("state").textContent=["entry","long jump","refine","neighbor","fine search","nearest"][step];step=(step+1)%6}draw();setInterval(draw,850)