Show HN: 40k HN comments mentioning books, extracted using deep learning

Hi HN! I built this small app in my spare time to aggregate books recommended on Hacker News. I personally find books recommended on HN to be super helpful, so I think this is the way that I can contribute back. This book aggregation idea is not new. A bunch of sites have done similar things [1, 2, 3]. Yet one common limitation of those sites is that they have limited recall (i.e. not able to get a comprehensive set of book mentions), and thus don't paint an accurate picture of what the top books are. They're all based on insufficient rules, e.g., looking for Amazon Links. As you can see from my app, people often do not include Amazon links when recommending a book. I wondered, why can't we just match book names? Well, not so easy. Some books have pretty short names, e.g. Meditations [4], or Steve Jobs [5]. Some book name might as well be the name of a movie, e.g. Ready Player One [6]. Simply matching the names of the books would produce a whole lot of irrelevant results. This is where Deep Learning comes into play. Recent advances in large NLP models (transformers and BERT in particular) have made machine language understanding unprecedentedly accurate. It enables me to fine-tune a BERT model on a couple thousand labeled HN comments and predict accurately whether each word in a comment is part of a book or not - a task commonly termed as Named Entity Recognition (NER). As a result, my app is able to present a whole lot more results while maintaining desirable accuracy. For example, NER works pretty well on the tough examples I mentioned ([4, 5, 6]). Compared to prior sites, my app captures 9-50X more mentions and thus presents a much more complete picture of what books are recommended on HN. Furthermore, I've made sure that the comments are presented well in the UI because the recommendations are just as useful as the books. I highlighted the mentioned book name, and used a custom NLP-based ranking function to sort the comments. These are non-trivial improvements over prior sites, which I hope you can find useful. Nevertheless, this app is not without limitations: 1) matching book names would fail when two books have the same or similar names; 2) although not often, this approach would wrongly classify some short stop-word names [7] and 3) sometimes NER fails to see that the commenter actually hates the book. These problems can be alleviated with more Deep Learning. For 1), one can use BERT to learn the authors mentioned which can be used as a filtering criteria. 2) and 3) should be fixable with more training data (currently there are only ~4,000 hand-labeled HN comments). Lastly, I'd like to especially thank my gf who helped me label ~1,000 comments, which boosted the model accuracy by 5 percent! I also want to thank the people who create and maintain the HackerNews big query dataset [8]. And of course, thank everyone on HN who recommends books to others. Hope you enjoy this app! Feedback and suggestions are welcome :) [1] https://news.ycombinator.com/item?id=15169611 [2] https://news.ycombinator.com/item?id=10924741 [3] https://news.ycombinator.com/item?id=12365693 [4] https://hacker-recommended-books.vercel.app/category/0/all-t... [5] https://hacker-recommended-books.vercel.app/category/1/all-t... [6] https://hacker-recommended-books.vercel.app/category/0/all-t... [7] https://hacker-recommended-books.vercel.app/category/12/past... [8] https://news.ycombinator.com/item?id=19304326 P.s. The amazon links are NOT sponsored. This app is free of monetization.

This makes me happy

Great work but do note that the list basically looks slightly better than an amazon list (atlas shrugged lol). I think some effort into more useful ranking (looking for metrics of controversiality or maybe page rank) might make it more useful!

• vavooom · 1875 days ago

  I am also curious to know if the # of votes is integrated into the ranking at all, possibly weighted. Could also attempt NLP Text Sentiment analysis to influence the model as well. Regardless, fantastic work already!

  • tracyhenry · 1875 days ago

    Right now the ranking is a simple combination of sentiment and length. Including #vote definitely sounds useful!

This is awesome. The best thing is that it's so fast to navigate. I like how the HN comments are styled just like on HN. A couple of thoughts: * It would be great if each book were to have its own URL (for sharing). * Consider allowing the search to allow author input, e.g. if I want to find the book 'Who' by Geoff Smart, the single-word title isn't specific enough to show that book at the top of the search results.

• soco · 1875 days ago

  If I look for one single word and that single word is the answer, shouldn't that be the very first result? I mean that's a 100% match right there...

  • rahimnathwani · 1875 days ago

    If the dataset were perfect, maybe. But, if a book with a single-word title has only few comments, it's plausible that most/all of those comments are false matches. In the case of the book I searched 'Who', showing it in 4th position seemed about right.

  • tracyhenry · 1875 days ago

    y the search can definitely be improved (e.g. to include author). Right now it's SELECT * FROM books WHERE name LIKE '%{search_string}%'

HN really likes Neal Stephenson. I've never read a book of his that I didn't love, so will be definitely looking though more of the recommended fiction from the community here.

• samuel · 1875 days ago

  REAMDE was crap, IMO, and I'm a Stephenson fan. And the problem with Stephenson is that's rarely succint so a bad book from him turns into a huge loss of time.

  • macintux · 1875 days ago

    I addressed that problem with Seveneves by skimming about 1/3rd of it.

    • ImaCake · 1874 days ago

      I really liked Seveneves, but totally understand why someone wouldn't like parts of it. I am curious as to which third you skimmed though as the book is effectively three different books with very different moods.

      • macintux · 1874 days ago

        The middle third, since by the time I reached that point I was exhausted and ready to find out how it all ended. Most comments I’ve read here indicate the last part of the book is the most unpopular, so perhaps I should go back someday and read the middle.

        • ImaCake · 1873 days ago

          The first third is very intense, I also was a bit fatigued for that middle third. When I have reread Seveneves I have skipped it. I really like the last third, but it does feel like a completely different book.

  • the__alchemist · 1875 days ago

    Only one I haven't read. Skip it I guess. Reading DoDo now, so verdict's out, but I absolutely adored every other of his books. Fall as a pleasant surprise, since it seemed controversial.

  • wrycoder · 1875 days ago

    Well, I liked it. The merging of different groups of people from different cultures and classes was zany, and the action was non-stop.

    • gibspaulding · 1875 days ago

      Reamde would have been my first recomendation to introduce someone to Stevenson. Constant action, an unusually direct storyline for him, and not too too much time spent off in the weeds. Of course some might argue those are the best things about his books, but while Chryptonomicon is perhaps my favorite sci-fi novel I've read, I think it takes a certaim type of person to enjoy a book where the plot gets interupted for 5 page descriptions on how to eat Captain Crunch or a who fucked who of the Greek pantheon.

Hey this is really awesome! Well done. You mentioned transformers and BERT for large NLP models. I've been playing around with this too and it's a really powerful approach. Have you used spacy-transformers? [0] The approach is pretty cool and can be used with BERT, GPT-2/Hugging Face etc. I'm just starting to experiment with GPT-J and thinking of trying this approach also [1]. Anyway, totally awesome project and the results are really good. This stuff really is almost unreasonably effective! [0] https://explosion.ai/blog/spacy-transformers [1] https://6b.eleuther.ai/

• tracyhenry · 1875 days ago

  Thanks! I used Huggingface's pretrained BERT.

  • jedwhite · 1875 days ago

    This is a really good application of it. Getting NER right for something like book titles with so much name collision with other domains and entity types is really hard, and this works great on something that most people would never realize would be so hard!

  • sillysaurusx · 1875 days ago

    Please write up how you did this! It may seem easy or straightforward, but I assure you it's black magic to a lot of people.

    • stanislavb · 1875 days ago

      That'd be great.

    • tracyhenry · 1875 days ago

      You can refer to the medium post in this comment, which does more or less what I did: https://news.ycombinator.com/item?id=28601741

  • malshe · 1875 days ago

    This is really impressive! Can you please elaborate more on the way you labeled the data? I think usually there is a lot to learn from labeling methods.

    • tracyhenry · 1875 days ago

      I generated training comments by matching book names. Roughly, there are one in five of those comments that actually have a book mention. Then I use the Doccano labeling tool to label the tokens in the comments.

      • malshe · 1873 days ago

        Thanks! I will check out Doccano now

  • m3at · 1875 days ago

    Thanks for building this, it's useful and well presented! Replies to your pinned top comment seems disabled, so allow me to ask here (sorry for the hijack): > used a custom NLP-based ranking function to sort the comments Can you expand on this function? (I'm familiar with NLP and most SOTA models)

    • tracyhenry · 1875 days ago

      Ah right now ranking is really rudimentary: I just use TextBlob's SA library to get a sentiment score for the comment, and combine it with the comment length. In theory we can also use BERT to get a sentiment score, which should be more accurate I guess? Love to hear your thoughts.

      • m3at · 1874 days ago

        Simple is good! Especially for ranking as the objective is hard to define. Having looked at some samples on your site, imo it's good enough :) Though if you wanted to try other things just for fun, maybe: - Count matching NER, comments with a lot of book recommendations tend not to detail why they like the specific one currently filtered - maybe down weight comments that are too short (after the matched NER is subtracted) as they seem to just have a title+link? Not ML but while I'm here, on Android the comment section appear fine but has an horizontal scroll that seems spurious, with lots of blank space to the right (Galaxy S10, chrome & firefox)

This is great. I just read Permutation City, which I coincidentally see recommended on HN all the time, so I was surprised not to see it in the search results or the top of the fiction or scifi lists. Any idea why that is?

• tracyhenry · 1875 days ago

  That might be that the book database I used is quite limited, sadly.

Sounds good. Blocked by my work firewall though. A few years ago I found an article that was something like '100 short books everyone should read before they're 40'. It was a mix of fiction and non-fiction. I've never been able to find it again! But I really liked the list because these are books you can consume in a few hours and may be life changing. I remember a few of the titles: Games People Play, Meditations, The Prince, The Art of War. (I suppose it may have been non-fiction only, although I think The Awakening may have been on there.) Wish I could find the link again.

• ZeroGravitas · 1875 days ago

  If it was Oliver Sacks' Awakenings then it is non-fiction, though it did get turned into a movie.

  • Tycho · 1875 days ago

    Different book - Kate Chopin

• Rd6n6 · 1875 days ago

  I don’t understand how software engineers get away with browsing the internet for fun at work when nobody else can

  • themodelplumber · 1875 days ago

    Sounds more like personal development than fun?

    • sillysaurusx · 1875 days ago

      That's a bit like saying watching porn is more for personal development than fun. Perhaps you'll learn something, but it's incidental. I've learned a lot from HN. But it wouldn't be good to fool myself into thinking that an employer wants to fund my personal development in this regard. Otherwise, they'd pay me to HN all day. The crux of the issue is that it's impossible to work 8 hours every day. We all invent lies to fill the downtime.

      • themodelplumber · 1875 days ago

        Is all that hyperbole really necessary? Each new sentence seems primed to leak edge and corner cases. Without giving more attention to such a rhetorical blind spot, I wonder how one could imagine they know the crux from the passenger side door.

        • sillysaurusx · 1875 days ago

          Which sentence is mistaken?

          • themodelplumber · 1875 days ago

            The one with all the generalizations

            • sillysaurusx · 1875 days ago

              If it’s mistaken, it should be easy to explain why. Otherwise I’m inclined to believe it’s merely an uncomfortable truth. Would your employer pay you to HN all day? If not, precisely how much of your day are they comfortable with you HN’ing? Are you sure it’s officially approved?

              • kritiko · 1875 days ago

                There’s often good intel on here that I have not been exposed to on other sources. Obviously spending 40 hours a week reading HN and getting into politics arguments on here is a waste, but there’s plenty of relevant news for most folks in tech if you stick to those topics.

              • _y5hn · 1875 days ago

                Do you collect stats, how assertions line up with facts? Otherwise, what may seem likely and catchy, might just as well be opinionated, unsubstantiated and patchy.

  • chadcmulligan · 1875 days ago

    https://xkcd.com/303/ Waiting for Compiles is the usual, there's a lot of waiting in software - waiting for compiles, scripts to run, someone else to do something.

The problem with reading book lists like this is that nobody has time to read all the books. That's a ton of crap out there and I want HN to help me filter through them. Thus the problem with existing solutions is NOT "limited recall" or "insufficient rules" or "no Amazon link". And the problem with this "solution" is that there is no justification for why a book is great and applicable to my circumstances, and people have to trust your black box. Otherwise I'm likely to waste my time, just like reading books from any other crappy recommendation engine. With a deep learning model reducing all the reviews to "book names" you've successfully removed the value of the book discussions themselves. Therefore, for me this engine and all similar engines are strictly worse than simply going through the actual big threads themselves, i.e. https://news.ycombinator.com/item?id=21900498 Edit: I've just seen the embedded comments by switching to a desktop browser. It's a nice addition. However, for me to make sure I'm not wasting my time going through arbitrary books and comments, I would need to know why a book is ranked highly compared to other books. And I want to be sure that ranking is tailored to me, at a very, very high accuracy.

• adewinter · 1875 days ago

  > With a deep learning model reducing all the reviews to "book names" you've successfully removed the value of the book discussions themselves. It literally shows each comment in full that it extracted the book name from. It also includes a link to the comment in the original thread. What more could you possibly want?

  • personjerry · 1875 days ago

    Oh, I was on mobile and could not see the comments section. It's interesting for sure. But what I want in particular is to learn why a book is ranked highly compared to other books. And I want to be sure that ranking is tailored to me, at a very, very high accuracy.

    • lbriner · 1875 days ago

      They are ranked highly because of the number of times they are recomended in a comment.

• FredPret · 1875 days ago

  There's no way around the black box element of a book review, but Nassim Taleb suggests waiting a few decades and, if the book is still well known, then reading it.

  • bachmeier · 1875 days ago

    Wow. What a helpful piece of advice (I guess he's smarter than the rest of us so it's hard to understand the genius of his strategy). Any mention of the cost of missing out on the content in the book for a few decades?

    • dwighttk · 1875 days ago

      Just read older books until there aren’t any and then move onto newer ones. There are too many that are a couple decades old for you to ever run out. Also occasionally break the rule for a book you want to read. It isn’t like that would kill you.

    • lifekaizen · 1875 days ago

      Love this question. I could imagine him suggesting reading academic papers for cutting edge things; like his 'barbell' excercise strategy of mostly walking with occasional HIITs.

    • phgn · 1875 days ago

      The idea behind reading older books is that they're already proven to be useful - it's a filter for you to spend less time on useless information. It's generally called the "Lindy effect"

  • dhosek · 1875 days ago

    I guess it's ok to read The C Programming Language , then.

    • FredPret · 1875 days ago

      Technical manuals are more like a journal in the sense that you have to read all the new ones if you want to keep up. Novels, philosophies, and histories are works that can stand the test of time if they’re good enough

      • blondin · 1875 days ago

        the c programming language stood the test of time.

• tracyhenry · 1875 days ago

  > I want HN to help me filter through them. The comments panel show the actual recommendations. And the books are ranked by number of recommendations. Is this not enough?

Impressive work. What data source are you using for the books, authors and covers? I looked at OpenLibrary [1] but the covers are not the same, so I suppose it is something else? Maybe Amazon directly somehow? [1] https://openlibrary.org/search?q=zero+to+one&mode=everything

• tracyhenry · 1875 days ago

  I crawled about 20k books from Amazon. Thanks for pointing me openlibrary!

Amazing and super useful: If I start reading today, and I read a book a day, it'll only take 112 years to finish, assuming that no additional books will be recommended in the next century.

• wrycoder · 1875 days ago

  I noticed that as I got several pages deep, the recommendations started to repeat.

  • nautilius · 1875 days ago

    Then maybe only 30 years ;-)

Heh, for a minute there I thought you meant Warhammer 40k books specifically, and I thought that was a pretty funny thing to be scraping from HN :)

• bnbond · 1875 days ago

  Same. I'm a little disappointed it's not.

• russellbeattie · 1875 days ago

  I'm pretty sure there's more Warhammer 40k books than there are days in the year... It's like someone heard the term "space opera" and thought that meant "soap opera in space". Recommendations would include comments like, "This novel is really the one that ties the previous 37 books together." or "You might want to skip the next dozen books if you're squeamish about things that ooze."

  • LanceH · 1875 days ago

    While I don't consider the 40k books on par with the better science fiction out there, I do enjoy that they bring a bit of scale and what it means to space. It's a different take from the rosy, post-scarcity, future of space. Bad things are really bad. Unattended good things turn bad on their own just from drift. Then there is there is the unashamed embrace of over-the-top in so many different ways.

    • KiranRao0 · 1874 days ago

      I've always considered 40k a satire of the entire sci-fi genre (and in many ways a satire on modern politics). In that way, I find it quite refreshing. And your statement of "unashamed embrace of over-the-top" resonates quite well.

This is amazing, thank you.

Noticed an issue. Some, but not all, comments referencing Strunk and White's Elements of Style are showing up instead as Erin Gates' Elements of Style: Designing a Home & a Life

• tracyhenry · 1875 days ago

  Good catch! This is the limitation mentioned in my root comment - the algorithm will fail when two books have similar names. The partial solution is to look at authors too when available. Something to be included in the future.

"You're delusional. Where did I ever recommend reading Atlas Shrugged? Ayn Rand is nuts." Interesting that that's one of the recommendations.

Interesting idea, but this is mentions of books, not recommendations. It includes comments by someone that's reading the book, has it on their reading list, or read it and thought it was terrible.

• tracyhenry · 1875 days ago

  The intention was to only show recommendations. But because of limited training data (we hand labeled ~4000 comments), the model wasn't able to filter out bad ones effectively. More training data should be able to solve it.

40k good books out there and I can only read like 24 a year if I really push myself

It has atlas shrugged in the top 10?

• gjm11 · 1875 days ago

  "Atlas Shrugged" is a polarizing book: people tend to either love it or hate it. And the people who love it love to tell other people how great it is, whereas many of the people who hate it just don't talk about it (because there's generally little need to talk about the badness of bad books). I think a book list is more useful if it has some books in it that some love and some hate, rather than only books that no one minds very much. Maybe some of them will turn out to be ones I love. (I happen not to be a Rand fan myself.)

• Kiro · 1874 days ago

  What's so strange about that? Objectivism used to be huge among hackers.

• hermitcrab · 1874 days ago

  Ugh. I'm not sure which is more offensive, the ideas behind it or the prose.

are you planning to open source the app? could you do one for lobste.rs too?

Slightly off from post. The best book recommendation I got is from one of the following ways, dedicated recommendation service or app never worked for me: - told by friend - someone I admire read book and commented on it - I'm working on some problem, during that exploration i came across books. - random people mentioning book on platform like HN on a topic/post of my interest.

• spookyuser · 1875 days ago

  > random people mentioning book on platform like HN on a topic/post of my interest. Same! Some of my favorite book recommendations have especially come from this one, I don't know why but a one line comment on a HN thread of "what book changed your life" has become my favorite way for discovering books.

• rahimnathwani · 1875 days ago

  The most life-changing book recommendation I got was from HN: 'Teach your child to read in 100 easy lessons'.

  • jp42 · 1875 days ago

    Thanks for the comment! My son is 3y8m. He knows letter and many word. Looks like this book could be what he needs to get on next level.

• TakerofVita · 1875 days ago

  Yeah, in my experience a lot of 'general' book reviews are super critical and don't really try to hook you. Going through several reviews, you just come away with the collected gripes and nitpicks of what is otherwise a good book. I find that I get sold on a lot more when it is just a random single comment on some thread somewhere that focuses on a single aspect of a book. If you can find a hyper specific subreddit/forum/etc. for a sub-genre you like, then you will spend more time reading books than reviews...

Awesome idea and nice looking UI! I will definitely visit when I am looking for new books to read. One thing that I've noticed is that when I select another book, the scrollbar in the comment section doesn't automatically scroll up.

• tracyhenry · 1875 days ago

  I know this but I wasn't able to fix it. Would love suggestions on how to keep the scroll position in one div (for the books) but not the other (for the comments) when doing client-side navigation using Next.js...

  • RheingoldRiver · 1875 days ago

    I was going to make this suggestion too, but now that I saw this comment, instead I'll suggest asking on the next.js subreddit? It seems somewhat active, maybe someone there can help - https://old.reddit.com/r/nextjs/

Although viewable on mobile, this app is best viewed on larger screens! :)

It's a really interesting project. And I am sure it's really hard. I was curious how many times some common textbooks were mentioned but didn't find them via the search, which could be user error. But to give a specific example. None of the books in this comment thread were found: https://news.ycombinator.com/item?id=19893447 Comment text like this: "CMOS VLSI Design: A Circuits and Systems Perspective (4th Edition)" by Weste and Harris should've been caught, right?

• tracyhenry · 1875 days ago

  It could be that I don't have this book in my book database.

This is amazing. Thank you! Does it take into account negative reviews/comments? I have seen that Why we sleep is being recommended in the 6 months tab, but, while it was received with a lot of praise, it was soon critizised by others researchers in the field and I would expect that the HN crowd would have followed that trend.

• tracyhenry · 1875 days ago

  When I labeled the comments, I didn't label books that were criticized. So in theory the model should filter out negative reviews. But currently the training dataset is pretty limited in size so you still can see some negative ones. I suspect that with more training data this problem will go away.

I’m Curious as to why you didn’t choose to monetize with affiliate links. Is seems simple and easily justifiable reward. I didn’t click the links, but hopefully you used smile.amazon for charity. This is novel and useful. Thank you.

In anticipation of getting flagged into oblivion, am I the only one who's disappointed in this selection of books? Of course, taste is subjective, and it should perhaps be expected that much of the list is in line with what is read by the general public, but many of the books are either presenting fact or attempting to convince the reader of the veracity of a certain viewpoint. I'd like to read more open-ended works that ask for interpretation on the part of the reader or, at the least, don't explicitly spell out what they want the reader to walk away with. (certainly some books here fit the bill, e.g. Infinite Jest, Pride & Prejudice, etc.). Again, interests are subjective. In light of this, book recommendations?

• awillen · 1875 days ago

  I think that's just the nature of pulling books from HN comments - a lot of those comments are trying to convince people of a viewpoint, so it seems unsurprising that this is the kind of list you'd end up with. Not good or bad, just a function of where they're coming from. And as for book recommendations, Children of Time by Adrian Tchaikovsky.

• themodelplumber · 1875 days ago

  Personally I wouldn't recommend others' books to someone who is left unfulfilled by such a huge list. I would rather recommend writing or other subjectively-pinned activities, to hold the subject accountable and help them stay out of the critic zone long enough to find their way into more fulfilling growth.

Cool project, and cool resultats. As an anthropologist who reads HN as a way to keep abreast of the tech community and tech insights, its interesting to see atlas shrugged as one of the most often recommended books. Interesting and maybe slightly disturbing. HN would make for quite interesting source material for someone who wanted to study tech culture.

• dang · 1875 days ago

  I'd be careful about that generalization. This software seems to be going more by mentions than by recommendations - e.g. the top reply to https://news.ycombinator.com/item?id=16323808 ("Ask HN: Which are the most damaging books you've read?") is being counted as a recommendation. Sentiment analysis is hard. In fact I've never seen it work yet.

Surprised to see “A pattern language” on there. I’ve read most of it in preparation for building my house. It’s more of a dictionary than a book but it’s unbelievably useful. It’s just a huge list of little things that an architect would notice over the span of his career. Little things that are important but not obvious. If you’re building a house, another really good book is “what not to build.” I also recommend “Islamic imperialism” from Yale, “the bomb in my garden” by mahdi obeidi and “nothing to envy.”

• gjm11 · 1875 days ago

  Most likely the main reason "A Pattern Language" is popular here on HN is that it spawned a movement in software engineering: https://en.wikipedia.org/wiki/Software_design_pattern (Plus the fact that it's a good book on its own terms. At least, it is so far as I can tell; I am not an architect and maybe some of the advice in it is actually terrible. But it seems almost always reasonable and frequently insightful, and it's well written, and the "pattern language" idea that software engineering borrowed from it is a nice one. (Though the software-engineering borrowings don't generally amount to actual pattern languages as opposed to miscellaneous grab-bags of alleged patterns.)

Very cool. This one’s wrong though: “Zero: The Biography of a Dangerous Idea”. Comments are talking about other books with “zero” in the tile, such as Thiel’s “Zero To One”. Perhaps parse longer titles first, and eliminate them, before matching for shorter titles? Great MVP. Had in fact been thinking about how great it would be to gather book data from HN myself just yesterday. So am really happy to see that someone actually made it. Plus, it looks great and is fun to use.

• tracyhenry · 1875 days ago

  Thanks. In theory this is the model's fault that's not learning "Zero to One" should be considered as a whole book. One limitation I mentioned in my root comment. Should be fixable with more training data!

BTW, going through that list, I see why I love the HN crowd. 70 % of those books I’ve read myself, and did so before coming to HN. There must be some strong personality type filtering going on.

• cinntaile · 1875 days ago

  There's a strange error in there. The Art of War by Sun Tzu is listed twice, why is that? Since it finds the right book and author?

• reducesuffering · 1875 days ago

  I think it's been quite obvious there's some personality type filtering going on, as with most online communities. I'm quite curious how it'd be quantified. Surely software engineers, startup founder, ADHD, INTJ, and Meyers-Briggs-is-bogus types are overrepresented. Might tell us a bit more about ourselves...

• konschubert · 1874 days ago

  The top book, "Thinking Fast and Slow" is full of experiments that are flat out false. https://replicationindex.com/category/thinking-fast-and-slow...

  • leobg · 1873 days ago

    Well, minus that one. If it trends on Blinkist, better to skip it.

Thinking loud here - what is the difference between Google Search Algorithm & AI Based deep learning? They both are trying to do same I guess - that is structuring unstructured data?

Great execution, and very neat app! But, what's wrong with using Amazon affiiliate links? If anything, monetizing would be great since it would give you more incentive to maintain this wonderful application? And it doesn't cost us users anything.

• tracyhenry · 1875 days ago

  Great point. I'm on a student visa which forbids any non-work income. That's one reason why :)

Interesting idea but not completely accurate. My own comment about how I hated Thinking, Fast and Slow seems to be counted as a recommendation.

• tracyhenry · 1875 days ago

  Right, the model is not perfect with limited training dataset I have (we hand labeled 4,000 - which is already tons of work for a side project). But the intention was to filter out negative ones.

  • jimmySixDOF · 1875 days ago

    You did a stellar job here thanks so much for this addition to the community ! On labeling, if you have a method statement or some go-by referance I am sure you would get some support here - I know I would help ! Maybe package a few blocks of 100 unlabeled comments with a readme & see what happens ?

  • thevagrant · 1875 days ago

    It's not so bad if you leave the negative comments. I often find negative reviews/comments quite informative.

  • indigodaddy · 1874 days ago

    It got some titles completely wrong too. For instance, “Open: an autobiography” by Andre Agassi was erroneously listed high in the title list as “139 comments,” however most of the comments are recommending various titles that start with “Open” many/mostly related to titles with “Open source” on the name— but the ML is attributing them all to the Agassi book..

• jgwil2 · 1875 days ago

  Yeah, I'm seeing some issues with Code by Petzold citing comments that are talking about e.g. Code Complete or just code in general, but with such a generic name (and given the forum) it's actually pretty impressive to me that most comments are identified correctly. Edit: another one that is tough is Open by Agassi - seems most of these comments do not actually have anything to do with the book. I would guess most one-word titles will have similar issues.

  • tracyhenry · 1875 days ago

    That's correct observation. I'm guessing it has to do with whether the words after Open are indicative enough to the model that they should be brought in together with Open . As I said in other comments, with more training data this issue will likely go away. And these tough comments are the best candidates.

• sampo · 1875 days ago

  > My own comment about how I hated Thinking, Fast and Slow seems to be counted as a recommendation. What is the level of sentiment analysis in natural language processing? Would it be easy to add the feature, to recognize whether the book was mentioned in a positive or negative light?

• munk-a · 1875 days ago

  If you want to see some amusing "recommendations" I'd check out The Communist Manifesto by Karl Marx and what comments it's drawn. I think the network trying to find recommendations needs to incorporate more sentiment analysis. i.e "Guards Guards by Sir Terry Pratchett is a great book" vs. "I've never read anything as slow and uninteresting as The Two Towers by J.R.R. Tolkein" or "I thought Seveneves by Neal Stephenson was good - but it probably should've been two separate books with the second half actually having some meat to it."

• FranklinMaillot · 1875 days ago

  Lessons: My Path to a Meaningful Life by Gisele Bündchen, the top model, is probably the most out of place recommendation :) None of the comments is about the book obviously, they just mention the word "Lessons". https://hacker-recommended-books.vercel.app/category/15/all-...

  • archon810 · 1869 days ago

    Same with Primer.

• dang · 1875 days ago

  Yes. I've removed the word "recommendations" from the title because there are too many cases of negative mentions being treated as recommendations. Not a criticism! Sentiment analysis seems to remain an unsolved problem. See also https://news.ycombinator.com/item?id=28598341 https://news.ycombinator.com/item?id=28596882 Edit: oops, my title edit ("Show HN: 40k books on HN extracted using deep learning") was inaccurate. It's 40k comments, not 40k books. Fixed now.

• therealdrag0 · 1875 days ago

  This was an amusing "extraction": > I have not yet read the good book Atlas Shrugged but be sure to check it out based on your recommendation. You're delusional. Where did I ever recommend reading Atlas Shrugged? Ayn Rand is nuts.

• dsr_ · 1874 days ago

  It also seems to have trouble with books that aren't available on Amazon -- a fair number are available through other vendors or free on various websites, and if Amazon doesn't sell it, it's not being caught.

some are interesting

Can this be done to get list of blogs posted here with topic analysis?

This is really incredible! A while ago I created something adjacent to this that looks for hacker news review of books on goodreads ( https://github.com/spookyuser/hacker-reads ) So I'm very curious how you managed to find book titles, I ran into a lot of issues trying to figure out, for example, with "Clean Code" whether to search for "Clean Code" or "Clean Code: A Handbook of Agile Software Craftsmanship" since people mentioning the book used both instances. And of course someone mentioning just "Clean Code" might be referring to the concept not the book. I ended up settling on `${titleMinusColon} - ${author}` but I'd love to know what your approach was given that you used deep learning to search. EDIT: Just read your comment below on your approach, very interesting!

Found it interesting that I couldn't find results for Knuth (The Art of Computer Programming) or SICP on here. Maybe the casual way we refer to these texts is hard to detect as a reference to a book, or their importance is just implied community knowledge?

• tracyhenry · 1875 days ago

  If there is no search result for the book name then it just means it's not in my current book database (which is limited).

  • Siira · 1874 days ago

    Do you mean the training data? So each book title must be present in the training labels, and new titles can't be learned automatically?

• ir193 · 1875 days ago

  i though sicp is most most mentioned book on HN. but sicp doesn't look like a book name.

Interesting lack of 1984, even though it is mentioned way too often. The lesser known "Animal Farm" and other dystopias like "Brave New World" and "Fahrenheit 451" are here. Is it because it is a number?

• tracyhenry · 1875 days ago

  It's because my book database doesn't have it. In fact my model identifies 132 mentions of 1984, some examples: https://news.ycombinator.com/item?id=20285306 https://news.ycombinator.com/item?id=12518804 https://news.ycombinator.com/item?id=22724495

  • SquishyPanda23 · 1875 days ago

    This is great thank you. On the topic of Brave New World, the site categorizes it as a Reference.

• SquishyPanda23 · 1875 days ago

  The book title is "Nineteen Eighty-Four", but nobody spells it that way. The app may need to special case it.

  • Zobat · 1875 days ago

    There's suspiciously few misspellings in the names of the books, even with words like 'millionaire' and 'righteous'. There's also 'Calculus' with 132 comments and just browsing through the comments I can find at least four different books referenced and some just talking about calculus in general. That said it's an interesting project that clearly took some effort to put together. Edit: Saw that the author commented on 'books with similar names. Many of the comments I saw had the books authors name in them as well, next iteration should perhaps look for and match on those as well.

• qiqitori · 1875 days ago

  Another book that occasionally gets mentions (51 results for https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu... ) but appears to be missing on the site AFAICT (not related to 1984, but just came to mind): https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu... Unrelated to the above, but it would also be nice if the site could search by author (I don't seem to get any hits when putting in author names) or even year of publication.

Suggestions: any way to notify you (your system) of book recommendations your processing has missed? You could have a form to notify you of a post which seems to be not processed, e.g. " https://news.ycombinator.com/item?id=28549134 ", or "id=28591398" etc. (BTW: very great work, and thank you for your invaluable service)

This is really cool stuff. Would be really nice to do the same for movies :)

@tracyhenry: how does the system work exactly? I cannot find any documentation on your website.

• tracyhenry · 1875 days ago

  hey, you can scroll down to find a long comment of mine documenting the approach.

  • dang · 1875 days ago

    https://news.ycombinator.com/item?id=28596207

You helped me spend $150 on books! Two comments 1. I regret you earned $0 for helping me spending so much on books. Have you considered setting up affiliate links or a donation button? Maybe affiliate links as a service will be your next project. 2. The Amazon links are for Amazon.com, but I'm in Canada. Maybe easy internationalized Amazon affiliate links will be your next project.

• rahimnathwani · 1875 days ago

  For #2, there are services OP could use, that will automatically switch links to the right country store, e.g. https://geniuslink.com/how-it-works/for-affiliates

• xpe · 1875 days ago

  I regret that so many people regret that other people are not monetizing.

  • lostgame · 1875 days ago

    You know what, if commenter OP finds value in the services offered; and wishes to compensate the author of the software - just gonna say - I have no problem with that.

    • mihaic · 1875 days ago

      You might not have a problem with that, but some of us dislike knowing that monetizatization has to become omnipresent, as it changes everything.

      • srcreigh · 1875 days ago

        Affiliate programs are the most anti-big corp monetization strategy ever. Considering I already buy books on Amazon, if there's anyway I can just find an affiliate (any affiliate), Amazon gets 5.5% less revenue. For tracyhenry, they would get ~$8.25 CAD straight out of Amazon's pocket for my $150 purchase. https://associates.amazon.ca/help/node/topic/GRXPHT8U84RAYDX...

        • soperj · 1875 days ago

          except it becomes much harder to find genuine recommendations for things on the web.

        • scns · 1875 days ago

          You can use Pi-holes' monetization link. (edit) just scroll down that page: https://pi-hole.net/donate/#sponsorship

        • dublinben · 1875 days ago

          Amazon would get even less revenue if you bought your books somewhere else, like https://bookshop.org/ or directly from an independent book store.

      • thaufeki · 1875 days ago

        A Patreon/crypto address to make a donation to is the compromise here, surely.

      • ijidak · 1875 days ago

        How do you pay your bills? People should get paid for work. Whether that work is having a job. Or making a website. I don't see the difference... Someone who does useful work deserves wages.

  • MathCodeLove · 1875 days ago

    I regret that some people seem to think that any sort of compensation for services rendered or monetization in any way is automatically bad or wrong somehow.

    • darwinwhy · 1875 days ago

      I regret having read this entire comment chain.

      • amelius · 1875 days ago

        I regret that you did not get compensated for your lost time.

    • ijidak · 1875 days ago

      Agree. People should get paid for work. Whether that work is having a job. Or making a website. Someone who does useful work deserves wages. Even 2,000 years ago the Bible said: "the worker deserves his wages." Most of the people who are again monetization are perfectly happy to get paid by their employer. Is direct employment the only morally upright way to receive payment for hard work?

• gricardo99 · 1875 days ago

  You helped me spend $150 on books! Check your local Library. Depending on where you are, it could be a fantastic resource for books.

  • malshe · 1875 days ago

    After reading such comments here on HN, last month I got myself a local library card and it has turned out to be a great decision! I am using Libby app to get digital books and even audiobooks! Absolutely fantastic

    • Rebelgecko · 1875 days ago

      The Libby app has also made some great usability improvements lately for people who have multiple library cards. If you live in an area with multiple library systems (like city and county), it's totally worth signing up for both.

      • malshe · 1875 days ago

        Thanks! I will check out

      • dudus · 1875 days ago

        Thanks for mentioning Libby. Just installed and spent 3h on it. I had no idea local libraries could be this convenient

    • mitchdoogle · 1873 days ago

      In addition to Libby, there is also Hoopla and Kanopy. Hoopla is pretty similar with ebooks and audio books, while Kanopy is mostly video

      • malshe · 1873 days ago

        Thanks, downloaded both the apps!

  • _joel · 1874 days ago

    Unless you're in the UK, where a lot of local libraries have shut down, unfortunately :(

  • indigodaddy · 1874 days ago

    Or just order used books from thriftbooks.com. It’s the only place I buy books for the last few years now. Cheapest prices (almost) always, but even if they’re not quite the cheapest for a particular title, the free shipping on any order over $10 always puts it over the top. Note also that addall.com used book search doesn’t include thriftbooks in the results, so I just always go straight to thriftbooks and don’t bother searching addall.com anymore.. No affiliation, just a longtime happy customer.

Came here for the Warhammer stayed for the book recc's.

I'm reminded of Goodhart's Law... So long as your project remains secret it'll be valuable. Once someone sees money being made from it, it'll kick off ingenuine recommendations... anyway... high quality problem to have I guess!

Brilliant

Amazing. I appreciate that there are no affiliate links. But I honestly think: you should put affiliate links. Also, if it makes sense, have a monthly list.

Nice. The Hacker News archive contains a wealth of great information. I've previously performed similar extractions like OP but with grep and SQL. I've also looked for people who have accurately predicted the stock market (I did identify one pro investor. He's now into NFTs). I've found so much cool stuff, spending whole nights looking for interesting users and reading their entire post histories and being blown away by many insightful posts. I've been considering making a blog consisting entirely of insightful HN posts that I come across.

• air7 · 1875 days ago

  Please do. That sounds super interesting.

• moneywoes · 1875 days ago

  Do you mind sharing what investor

  • thujlife · 1875 days ago

    John Titor

    • tonetheman · 1875 days ago

      you win the internet today... pinky. but tomorrow is another day...

    • system2 · 1875 days ago

      Thanks, now I am sucked into youtube rabbit hole.

• saadalem · 1875 days ago

  i think someone should start a fund that exclusively invests in startups that get torn to shreds on HN, “Why would anyone use this, I could build it in a weekend!”.. often means the startup goes on to reach a billion dollar valuation. here's my idea: understand the sentiment of HN comments using BOW models on successful startups already lunched, invest in the next ones.

  • mikepurvis · 1875 days ago

    Sounds like an IFF fallacy— sure, HN hates some thing that turn out to be successful, but lots of things HN hates really are terrible (or turn out to be successful for unrelated reasons, like the team was great and they managed to pivot away from the terrible idea).

    • 1cvmask · 1875 days ago

      It is like not seeing the potential in Dropbox. Anyone technically minded used FTP back in the days. So why is there a need for Dropbox (at that time). That is what makes it hard to invest if you think too much or "know" too much. You get blinkers that prevent you seeing what become obvious successes because of UX improvements for the non-technical crowd.

      • setr · 1875 days ago

        It’s not like… that’s precisely the scenario being referred to. The problem is that’s always the example, which suggests that the dropbox event is likely closer to the exception than the rule. And it’s existence is used to deflect all criticisms, which is generally an indefensibly dumb strategy. Knowing the subject well may put blinders in some situations… but what’s the alternative? Know the subject poorly, flail about wildly and hope you land something by pure chance? Obviously knowledge isn’t the problem here; you need it to qualify if it’s a good decision or not. It’s the over-specialization, combined with the lack of empathy for the average user that derived the dropbox event.

        • riffraff · 1875 days ago

          time to run a statistical analysis on "I can build it easily myself" comments!

    • Semiapies · 1874 days ago

      AKA, "Yes, they laughed at Columbus, but they also laughed at Bozo the clown."

  • humanistbot · 1875 days ago

    > Why would anyone use this, I could build it in a weekend!”.. often means the startup goes on to reach a billion dollar valuation. I'm going to take extreme issue with your use of the word "often" here.

    • puchatek · 1875 days ago

      In that case I shall take issue with _your_ use of the word "extreme" (even though I ultimately cannot verify the level of issue you took)

• manigandham · 1868 days ago

  Do you have a list of those interesting users?

Interestingly it cannot differentiate between the different harry potter recommendation (the original books, fanfics, and that book on philosophy that mentions harry potter)

This is very impressive, well done on deploying this. 95% of every book I have ever read or owned is in the first 20 pages. Its almost just as fun to read the comment chain about each book. You must be independently wealthy because I know no one cares if their is an affiliate link. I believe affiliates are always paid to the last cookie you have.

it confused rationalist harry potter fanfic with 'harry potter hogwarts hardcover journal and elder wand pen set', amazing

• wizzwizz4 · 1875 days ago

  To my knowledge, /jk Rowling doesn't allow people to sell Harry Potter fanfic, even though she's fine with its existence.

Can’t find my recommendations for J. Scott Turner’s “The Extended Organism” To summarise: organisms evolving to change the environment around them to their benefit. I went to Foyle’s one day with butlying a book on Termite mounds in mind, that is one chapter in the book. I found out too late that UCL had hosted a talk by Dr Turner a year too late.

Perhaps you can do the same for research papers. Would the code need to be changed in any way?

• tracyhenry · 1875 days ago

  Not much - but it needs a new set of training data for research papers. Btw - there seems to be an existing website for this already: https://www.hackernewspapers.com/ Although it only looks for posts. I'd assume that Arxiv links are often there. So it's a problem that can be addressed with an easier solution (just looking for Arxiv links).

Wow! this is amazing. Nice work! :) made my day

Ok #3 is Dune. It'll surely be super helpful in building my interstellar empire. Step 1: make elites addicted to drugs Step 2: monopolize drug trade Step 3: install a religious fundamentalistic regime with yourself at its head (All very logical until this point, but next step might be a problem, can anyone offer advice) Step 4: transform into a worm ??!

• robotresearcher · 1875 days ago

  Don't forget the step of achieving prescience, which allows you to figure out what the '??!' is.

  • Andrew_nenakhov · 1875 days ago

    That's what drugs are for, no?!

Love it, will you do a write-up on how to replicate this with other sources? I'm currently analyzing both Indie Hackers and StartupsForTheRestOfUs Interview Transcriptions and this could be a fun analysis!

• tracyhenry · 1875 days ago

  You can refer to this comment: https://news.ycombinator.com/item?id=28601741

  • kenan7 · 1875 days ago

    amazing stuff, hey, can you also make comments clickable please? in order to get the context.