mirror of
https://github.com/MarginaliaSearch/MarginaliaSearch.git
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1d34224416
Look, this will make the git history look funny, but trimming unnecessary depth from the source tree is a very necessary sanity-preserving measure when dealing with a super-modularized codebase like this one. While it makes the project configuration a bit less conventional, it will save you several clicks every time you jump between modules. Which you'll do a lot, because it's *modul*ar. The src/main/java convention makes a lot of sense for a non-modular project though. This ain't that.
461 lines
13 KiB
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461 lines
13 KiB
Plaintext
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>MEMEX - Experimenting with Personalized PageRank [2021-10-02]</title>
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<link rel="stylesheet" href="/style-new.css" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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</head>
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<body class="double" lang="en">
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<header>
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<nav>
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<a href="http://www.marginalia.nu/">Marginalia</a>
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<a href="http://search.marginalia.nu/">Search Engine</a>
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<a href="http://encyclopedia.marginalia.nu/">Encyclopedia</a>
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</nav>
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</header>
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<nav class="topbar">
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<h1>Memex</h1>
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<a href="/" class="path root"><img src="/ico/root.png" title="root"> marginalia</a>
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<a href="/log" class="path dir"><img src="/ico/dir.png" title="dir"> log</a>
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<a href="/log/26-personalized-pagerank.gmi" class="path file"><img src="/ico/file.png" title="file"> 26-personalized-pagerank.gmi</a>
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</nav>
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<article>
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<section id="memex-node">
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<h1 id="1">Experimenting with Personalized PageRank [2021-10-02]</h1>
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<br>
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The last few days I've felt like my first attempt at a ranking algorithm for the search engine was pretty good, like it was producing some pretty interesting results. It felt close to what I wanted to accomplish.<br>
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<br>
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The first ranking algorithm was a simple link-counting algorithm that did some weighting to promote pages that look in a certain fashion. It did seem to keep the page quality up, but also seemed to as a strange side-effect promote very "1996"-looking websites. This isn't quite what I wanted to accomplish, I wanted to promote new sites as well as long as they were rich in content.<br>
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<br>
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This morning I was reading through the original paper on PageRank, an algorithm I had mostly discounted as I thought it would be too prone to manipulation, mostly based on Google's poor performance. I had done some trials earlier and the results weren't particularly impressive. Junk seemed to float to the top and what I wanted at the top was in the middle somewhere.<br>
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<br>
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Then I noticed toward the end the authors mention something called "Personalized PageRank"; a modification of the algorithm that skews the results toward a certain subset of the graph.<br>
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<br>
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The authors claim<br>
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<br>
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<blockquote>
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These types of personalized PageRanks are virtually immune to manipulation by commercial interests. For a page to get a high PageRank, it must convince an important page, or a large number of non-important pages to link to it.</blockquote>
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<br>
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Huh. My interest was piqued.<br>
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<br>
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The base algorithm models a visitor randomly clicking links and bases the ranking of the distribution of where the visitor is most likely to end up.<br>
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<br>
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The modification of the algorithm in simplicity introduces a set of pages that a hypothetical visitor spontanenously goes back to when they get bored with the current domain. The base algorithm instead has the visitor leaving to a random page. In the base algorithm this helps escape from loops, but in the modified algorithm it also introduces a bias nodes pages adjacent to that set. <br>
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<br>
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I implemented the algorithm. PageRank is a very simple algorithm so this wasn't more than a few hours. I used my own memex.marginalia.nu as the set of pages the bored visitor goes to, as it has a lot of links to pages I like. The algorithm ran for a few seconds and then converged into something beautiful: A list of small personal websites.<br>
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<br>
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No, wait. This doesn't cut it.<br>
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<br>
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<h2 id="1.1">Jesus. H. Christ. On. An. Actual. Penny. Farthing. What. I. Don't. Even. HUH?!</h2>
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<br>
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The top 1000 results were almost ALL personal websites, like of the sort that was actually interesting! It's... it's the small web! It's the living breathing blogosphere! It's *everything* I wanted to make available and discoverable! I did some testing on a smaller index, and it actually kinda worked. I pushed it into production, and it works. It's amazing!<br>
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<br>
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What's great is that even though I didn't plan for this, my search index design allows me to actually roll with *both* algorithms at the same time; I can even mix the results. So I put a drop down where you can choose which ranking algorithm you want. I could probably add in a third algorithm as well!<br>
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<br>
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It's very exciting. There is probably more stuff I can tweak but it seems to produce very good results.<br>
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<br>
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<h2 id="1.2">Read More</h2>
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<br>
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<dl class="link"><dt><a class="external" href="http://ilpubs.stanford.edu:8090/422/1/1999-66.pdf">http://ilpubs.stanford.edu:8090/422/1/1999-66.pdf</a></dt><dd>The Page Rank Citation Algorithm: Bringing Order To The Web</dd></dl>
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<br>
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<h1 id="2">Appendix - A Lot Of Domains</h1>
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<br>
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This is going to be a lot of domains, a top-25 ranking based on which domain the PageRank biases towards. I'm not hyperlinking them, but sample a few with copy&paste. They are mostly pretty interesting. <br>
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<br>
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<h2 id="2.1">memex.marginalia.nu</h2>
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<br>
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The current seed<br>
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<br>
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search.marginalia.nu<br>
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twtxt.xyz<br>
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wiki.xxiivv.com<br>
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www.loper-os.org<br>
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lee-phillips.org<br>
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memex.marginalia.nu<br>
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www.lord-enki.net<br>
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jim.rees.org<br>
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www.ranprieur.com<br>
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ranprieur.com<br>
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john-edwin-tobey.org<br>
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tilde.town<br>
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www.ii.com<br>
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equinox.eulerroom.com<br>
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cyborgtrees.com<br>
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lobste.rs<br>
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www.teddydd.me<br>
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collapseos.org<br>
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0xff.nu<br>
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antoine.studio<br>
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parkimminent.com<br>
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jitterbug.cc<br>
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www.awalvie.me<br>
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www.lambdacreate.com<br>
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desert.glass<br>
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mineralexistence.com<br>
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milofultz.com<br>
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ameyama.com<br>
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nchrs.xyz<br>
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ftrv.se<br>
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www.wileywiggins.com<br>
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www.leonrische.me<br>
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forum.camendesign.com<br>
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nilfm.cc<br>
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terra.finzdani.net<br>
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kokorobot.ca<br>
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www.tinybrain.fans<br>
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void.cc<br>
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akkartik.name<br>
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100r.co<br>
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sentiers.media<br>
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llllllll.co<br>
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www.paritybit.ca<br>
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sr.ht<br>
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eli.li<br>
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usesthis.com<br>
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marktarver.com<br>
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mvdstandard.net<br>
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blmayer.dev<br>
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dulap.xyz<br>
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<br>
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<h2 id="2.2">stpeter.im</h2>
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<br>
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Let's try someone who is more into the humanities.<br>
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<br>
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monadnock.net<br>
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coccinella.im<br>
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www.coccinella.im<br>
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kingsmountain.com<br>
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metajack.im<br>
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anglosphere.com<br>
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www.kingsmountain.com<br>
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test.ralphm.net<br>
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ralphm.net<br>
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badd10de.dev<br>
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xmpp.org<br>
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memex.marginalia.nu<br>
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copyfree.org<br>
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etwof.com<br>
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chrismatthewsciabarra.com<br>
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www.chrismatthewsciabarra.com<br>
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www.igniterealtime.org<br>
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www.xmcl.org<br>
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www.jxplorer.org<br>
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search.marginalia.nu<br>
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www.bitlbee.org<br>
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perfidy.org<br>
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www.gracion.com<br>
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stpeter.im<br>
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www.ircap.es<br>
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www.ircap.net<br>
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www.ircap.com<br>
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dismail.de<br>
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wiki.mcabber.com<br>
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www.knowtraffic.com<br>
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www.rage.net<br>
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fsci.in<br>
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trypticon.org<br>
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www.riseofthewest.net<br>
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www.riseofthewest.com<br>
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fsci.org.in<br>
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www.planethofmann.com<br>
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www.badpopcorn.com<br>
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muquit.com<br>
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www.muquit.com<br>
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git.disroot.org<br>
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www.hackint.org<br>
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www.skills-1st.co.uk<br>
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glyph.twistedmatrix.com<br>
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www.thenewoil.xyz<br>
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leechcraft.org<br>
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anarchobook.club<br>
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ripple.ryanfugger.com<br>
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swisslinux.org<br>
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mikaela.info<br>
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<br>
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<h2 id="2.3">lobste.rs</h2>
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<br>
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These results are pretty similar to the MEMEX bunch, but with a bigger slant toward the technical I feel. Most of these people have a github link on their page. <br>
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<br>
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siskam.link<br>
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brandonanzaldi.com<br>
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neros.dev<br>
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matthil.de<br>
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www.gibney.org<br>
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www.possiblerust.com<br>
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kevinmahoney.co.uk<br>
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werat.dev<br>
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coq.io<br>
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64k.space<br>
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tomasino.org<br>
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axelsvensson.com<br>
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call-with-current-continuation.org<br>
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secretchronicles.org<br>
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adripofjavascript.com<br>
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alexwennerberg.com<br>
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nogweii.net<br>
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evaryont.me<br>
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reykfloeter.com<br>
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www.chrisdeluca.me<br>
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hauleth.dev<br>
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mkws.sh<br>
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danilafe.com<br>
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knezevic.ch<br>
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mort.coffee<br>
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writepermission.com<br>
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danso.ca<br>
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chown.me<br>
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syuneci.am<br>
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feed.junglecoder.com<br>
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magit.vc<br>
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antranigv.am<br>
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nathan.run<br>
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barnacl.es<br>
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soap.coffee<br>
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www.craigstuntz.com<br>
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pzel.name<br>
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eloydegen.com<br>
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robertodip.com<br>
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vincentp.me<br>
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vfoley.xyz<br>
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www.uraimo.com<br>
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creativegood.com<br>
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stratus3d.com<br>
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shitpost.plover.com<br>
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forums.foundationdb.org<br>
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hristos.co<br>
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hristos.lol<br>
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julienblanchard.com<br>
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euandre.org<br>
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<br>
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<h2 id="2.4">www.xfree86.org</h2>
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<br>
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Next up is an older site, and the results seem to reflect the change in seed quite well. Not all of them are old, but the *feel* is definitely not the same as the previous ones.<br>
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<br>
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x-tt.osdn.jp<br>
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www.tjansen.de<br>
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www.blueeyedos.com<br>
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asic-linux.com.mx<br>
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checkinstall.izto.org<br>
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hobbes.nmsu.edu<br>
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www.stevengould.org<br>
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greenfly.org<br>
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www.parts-unknown.com<br>
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www.afterstep.org<br>
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lagarcavilla.org<br>
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brltty.app<br>
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aput.net<br>
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openmap-java.org<br>
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www.splode.com<br>
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links.twibright.com<br>
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www.dolbeau.name<br>
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www.dbsoft.org<br>
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dbsoft.org<br>
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www.sanpei.org<br>
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www.dubbele.com<br>
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www.sgtwilko.f9.co.uk<br>
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www.anti-particle.com<br>
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www.climatemodeling.org<br>
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www.sealiesoftware.com<br>
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sealiesoftware.com<br>
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openbsdsupport.org<br>
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www.momonga-linux.org<br>
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www.varlena.com<br>
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www.semislug.mi.org<br>
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www.dcc-jpl.com<br>
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www.tfug.org<br>
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www.usermode.org<br>
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www.mewburn.net<br>
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www.herdsoft.com<br>
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xfree86.org<br>
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www.xfree86.org<br>
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www.tinmith.net<br>
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tfug.org<br>
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james.hamsterrepublic.com<br>
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www.dummzeuch.de<br>
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arcgraph.de<br>
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www.fluxbox.org<br>
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www.treblig.org<br>
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josephpetitti.com<br>
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www.lugo.de<br>
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fluxbox.org<br>
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petitti.org<br>
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shawnhargreaves.com<br>
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ml.42.org<br>
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<br>
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<h2 id="2.5">xroads.virginia.edu</h2>
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<br>
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Old academic website related to American history.<br>
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<br>
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www.sherwoodforest.org<br>
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www.expo98.msu.edu<br>
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www.trevanian.com<br>
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www.lachaisefoundation.org<br>
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www.toysrbob.com<br>
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darianworden.com<br>
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twain.lib.virginia.edu<br>
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dubsarhouse.com<br>
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www.carterfamilyfold.org<br>
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essays.quotidiana.org<br>
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va400.org<br>
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webpage.pace.edu<br>
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www.wyomingtalesandtrails.com<br>
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wyomingtalesandtrails.com<br>
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bbll.com<br>
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graybrechin.net<br>
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genealogy.ztlcox.com<br>
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www.bbll.com<br>
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www.graybrechin.net<br>
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www.thomasgenweb.com<br>
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thomasgenweb.com<br>
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www.granburydepot.org<br>
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www.northbankfred.com<br>
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www.melville.org<br>
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www.stratalum.org<br>
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mtmen.org<br>
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www.mtmen.org<br>
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onter.net<br>
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www.tommymarkham.com<br>
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www.robert-e-howard.org<br>
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www.straw.com<br>
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www.foucault.de<br>
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www.antonart.com<br>
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www.footguard.org<br>
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www.taiwanfirstnations.org<br>
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jmisc.net<br>
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www.jmisc.net<br>
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www.thegospelarmy.com<br>
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jimlong.com<br>
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pixbygeorge.info<br>
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www.boskydellnatives.com<br>
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www.imagesjournal.com<br>
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www.onter.net<br>
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silentsaregolden.com<br>
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imagesjournal.com<br>
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www.frozentrail.org<br>
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www.pocahontas.morenus.org<br>
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vinnieream.com<br>
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www.historyinreview.org<br>
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www.sandg-anime-reviews.net<br>
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<br>
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<h2 id="2.6">www.subgenius.com</h2>
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<br>
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www.quiveringbrain.com<br>
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revbeergoggles.com<br>
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www.seesharppress.com<br>
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www.vishalpatel.com<br>
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www.revbeergoggles.com<br>
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seesharppress.com<br>
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www.digital-church.com<br>
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lycanon.org<br>
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www.lycanon.org<br>
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all-electric.com<br>
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www.wd8das.net<br>
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fictionliberationfront.net<br>
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www.fictionliberationfront.net<br>
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www.radicalartistfoundation.de<br>
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cca.org<br>
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cyberpsychos.netonecom.net<br>
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www.stylexohio.com<br>
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StylexOhio.com<br>
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www.theleader.org<br>
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theleader.org<br>
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www.annexed.net<br>
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principiadiscordia.com<br>
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www.evil.com<br>
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www.the-philosophers-stone.com<br>
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the-philosophers-stone.com<br>
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www.hackersdictionary.com<br>
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kernsholler.net<br>
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www.kernsholler.net<br>
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www.booze-bibbing-order-of-bacchus.com<br>
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www.westley.org<br>
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www.bigmeathammer.com<br>
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www.littlefyodor.com<br>
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www.isotopecomics.com<br>
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sacred-texts.com<br>
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www.tarsierjungle.net<br>
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www.monkeyfilter.com<br>
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www.slackware.com<br>
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www.nick-andrew.net<br>
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www.eidos.org<br>
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www.templeofdin.co.uk<br>
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saintstupid.com<br>
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www.saintstupid.com<br>
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www.rapidpacket.com<br>
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www.mishkan.com<br>
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www.consortiumofgenius.com<br>
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www.xenu-directory.net<br>
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www.cuke-annex.com<br>
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www.nihilists.net<br>
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nihilists.net<br>
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madmartian.com<br>
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<br>
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<br>
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<h2 id="2.7">Topic</h2>
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<br>
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<a class="internal" href="/topic/astrolabe.gmi">/topic/astrolabe.gmi</a><br>
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</section>
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<div id="sidebar">
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<section class="tools">
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<h1>26-personalized-pagerank.gmi</h1>
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<a class="download" href="/api/raw?url=/log/26-personalized-pagerank.gmi">Raw</a><br>
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<a rel="nofollow" href="/api/update?url=/log/26-personalized-pagerank.gmi" class="verb">Edit</a>
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<a rel="nofollow" href="/api/rename?type=gmi&url=/log/26-personalized-pagerank.gmi" class="verb">Rename</a>
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<br/>
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<div class="toc">
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<a href="#1" class="heading-1">1 Experimenting with Personalized PageRank [2021-10-02]</a>
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<a href="#1.1" class="heading-2">1.1 Jesus. H. Christ. On. An. Actual. Penny. Farthing. What. I. Don't. Even. HUH?!</a>
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<a href="#1.2" class="heading-2">1.2 Read More</a>
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<a href="#2" class="heading-1">2 Appendix - A Lot Of Domains</a>
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<a href="#2.1" class="heading-2">2.1 memex.marginalia.nu</a>
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<a href="#2.2" class="heading-2">2.2 stpeter.im</a>
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<a href="#2.3" class="heading-2">2.3 lobste.rs</a>
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<a href="#2.4" class="heading-2">2.4 www.xfree86.org</a>
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<a href="#2.5" class="heading-2">2.5 xroads.virginia.edu</a>
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<a href="#2.6" class="heading-2">2.6 www.subgenius.com</a>
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<a href="#2.7" class="heading-2">2.7 Topic</a>
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</div>
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</section>
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<section id="memex-backlinks">
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<h1 id="backlinks"> Backlinks </h1>
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<dl>
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<dt><a href="/log/37-keyword-extraction.gmi">/log/37-keyword-extraction.gmi</a></dt>
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<dd>A Jaunt Through Keyword Extraction [ 2021-11-11 ] - See Also</dd>
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</dl>
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</section>
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</div>
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</article>
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<footer>
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Reach me at <a class="fancy-teknisk" href="mailto:kontakt@marginalia.nu">kontakt@marginalia.nu</a>.
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<br />
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</footer>
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</body>
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