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josefcullhed

HN member
Joined
Sat, Jan 29, 2022, 10:06 PM UTC
HN karma
62
Public activity
13 items

About josefcullhed

Founder of alexandria.org

Recent public activity

  1. comment
    Comment #32642787

    Great article, I really think programmers should be more conservative when it comes to new technology. You don't always have to use fancy react stuff when making simple websites an…

  2. comment
    Comment #31539397

    Great job with Marginalia. Do you plan to open source your data as well or only the code?

  3. comment
    Comment #30731998

    Thanks! The active index is running on 4 servers and we have one server for hosting the frontend and the api (the API is what is used by the frontend, ex: https://api.alexandria.or…

  4. comment
    Comment #30728049

    I just think that the timing is right. I think we are in a spot in time where it does not cost billions of dollars to build a search engine like it did 20 years ago. The relevant p…

  5. comment
    Comment #30727960

    This is actually not used yet. Working on implementing that as a factor.

  6. comment
    Comment #30727729

    We are currently just doing an intersection and then we make a lookup in a forward index to get the urls, titles and snippets. I actually don't know what roaring bitmaps are, pleas…

  7. comment
    Comment #30727671

    Founder here. We are using harmonic centrality instead of pagerank. But of course much more work needs to be done to make the search engine usable.

  8. comment
    Comment #30727601

    Yes it would be impossible to keep the index in RAM. >> It's hard for me to see how that could be done much faster unless you find a way to parallelize the process We actually para…

  9. comment
    Comment #30727517

    Hi, Yes our documentation is probably pretty confusing. It works like this, the base score for all URLs to a specific domain is the harmonic centrality (hc). Then we have two index…

  10. comment
    Comment #30727349

    Founder here, I suggest you start by not implementing a crawler but use commoncrawl.org instead. The problem with starting a web crawler is you will need a lot of money and almost …

  11. comment
    Comment #30727310

    The index we are running right now are all URLs in commoncrawl from 2021 but only URLs with direct links to them. This is mostly because we would need more servers to index more UR…

  12. comment
    Comment #30727142

    Hello, My name is Josef Cullhed. I am the programmer of alexandria.org and one of two founders. We want to build an open source and non profit search engine and right now we are de…

  13. comment
    Comment #30131033

    Interesting, in Sweden I only got this story when I made the same searches: https://imgur.com/a/k1Avbtm