Hacker News with Generative AI: Search

Bitbucket search that doesn't suck – Sourcebot, OSS alternative to Sourcegraph (sourcebot.dev)
We’ve added support for indexing repos from Bitbucket Cloud and Bitbucket Data Center. Check out our docs for more info!
Software, Open Source, Git, Version Control, Search
5 points by bshzzle 9 hours ago | 0 comments
Discord Indexes Trillions of Messages (discord.com)
Back in 2017, we shared how we built our message search system to index billions of messages.
Search, Social Media, Discord, Messaging, Technology
35 points by todsacerdoti 1 day ago | 9 comments
Lucene University (github.com/msfroh)
This repository contains some examples of Apache Lucene features with verbose explanations as code comments written in Markdown.
Apache Lucene, Search, Software, Programming, Education
66 points by softwaredoug 2 days ago | 1 comments
AI assisted search-based research works now (simonwillison.net)
In this first half of 2025 I think these systems have finally crossed the line into being genuinely useful.
Artificial Intelligence, Search, Research
278 points by simonw 5 days ago | 145 comments
Google Search switching to Google․com around the world (9to5google.com)
Google Search is now getting rid of these country code top-level domain names (ccTLD) in favor of using google.com globally.
Google, Search, Domain Names, Web
7 points by alentred 9 days ago | 1 comments
Show HN: H-1B salary search without fuss (h1bsalaries.fyi)
This website indexes the Labor Condition Application (LCA) disclosure data from the United States Department of Labor (DOL).
Data, Employment, Immigration, Search, US Government
8 points by dtgeadamo 12 days ago | 0 comments
Show HN: RAG, No Vectors (github.com/VectifyAI)
PageIndex is a document indexing system that builds search tree structures from long documents, making them ready for reasoning-based RAG.
Search, Information Retrieval
11 points by vectify_AI 14 days ago | 1 comments
An LLM Query Understanding Service (softwaredoug.com)
We need to be cheating at search with LLMs. Indeed I’m teaching a whole course on this in July.
Search, AI, Programming
38 points by softwaredoug 17 days ago | 3 comments
Show HN: HNSW index for vector embeddings in approx 500 LOC (github.com/dicroce)
Show HN, GitHub, Vector Embeddings, Software, Search
73 points by dicroce 18 days ago | 12 comments
Show HN: Hot Notes – Fuzzy Search for Apple Notes (macOS) (hotmatcha.dev)
Hot Notes is a macOS app that opens your Apple Notes using fast fuzzy search
macOS, Apple Notes, Productivity, Search, Software
9 points by emadda 24 days ago | 7 comments
Knowledge Library MCP (devpost.com)
Knowledge Library MCP (KL MCP) is a multi-modal application leveraging Azure AI Agent Service to locate documents—text and images—and deliver conversational insights via bots. It enhances search with live data integration and Responsible AI principles, designed for scalable, professional-grade querying.
Azure, Artificial Intelligence, Search, Knowledge Management, Conversational AI
5 points by thstart 28 days ago | 1 comments
Show HN: Search and chat with millions of court cases using AI. (courtsearch.ai)
AI, Legal Tech, Search, Court Cases
31 points by ashr_ 33 days ago | 7 comments
Improving recommendation systems and search in the age of LLMs (eugeneyan.com)
Recommendation systems and search have historically drawn inspiration from language modeling. For example, the adoption of Word2vec to learn item embeddings (for embedding-based retrieval), and using GRUs, Transformer, and BERT to predict the next best item (for ranking). The current paradigm of large language models is no different.
Recommendation Systems, Search, Artificial Intelligence
408 points by 7d7n 34 days ago | 93 comments
Show HN: I converted my notebook into a searchable database of IT keywords (techbook.digital)
Show HN, Databases, IT, Search
78 points by jurajstefanic 39 days ago | 27 comments
Google gets 373x more searches every day than ChatGPT (sparktoro.com)
For years, two questions have dominated both marketers’ interest and the media’s coverage of Google Search:
Google, Search, ChatGPT, Artificial Intelligence, Marketing
5 points by nsmog767 46 days ago | 1 comments
Long Read: Lessons from Building Semantic Search for GitHub and Why I Failed (notion.site)
Long Read, Search, Software Development, GitHub
146 points by zxt_tzx 49 days ago | 51 comments
Optimizing for Multiple Objectives in Search and Recommendations (shaped.ai)
Building effective recommendation and search systems means going beyond simply predicting relevance. Modern users expect personalized experiences that cater to a wide range of needs and preferences, and businesses need systems that align with their overarching goals. This requires optimizing for multiple objectives simultaneously – a complex challenge that demands a nuanced approach. This post explores the concept of value modeling and multi-objective optimization (MOO), explaining how these techniques enable the development of more sophisticated and valuable recommendation and search experiences.
Search, Recommendations, Optimization, Machine Learning, User Experience
10 points by tullie 51 days ago | 1 comments
BM25 in PostgreSQL (vectorchord.ai)
We’re excited to share something special with you: VectorChord-BM25, a new extension designed to make PostgreSQL’s full-text search even better. Whether you’re building a small app or managing a large-scale system, this tool brings advanced BM25 scoring and ranking right into PostgreSQL, making your searches smarter and faster.
PostgreSQL, Databases, Search, Full-Text Search, Open Source
139 points by gaocegege 54 days ago | 31 comments
Chrome has built-in AI history search (support.google.com)
You can use everyday language to find and receive generated answers about what you’re searching for in your Chrome browsing history. This works even if you don't know an exact keyword or website address.
Chrome, AI, Search, Browsing History
22 points by exp1orer 55 days ago | 9 comments
Show HN: PG-Capture – a better way to sync Postgres with Algolia (or Elastic) (onrender.com)
Schema-based Change-Data-Capture for Postgres
Databases, Postgres, Search, Open Source, SaaS
56 points by nick-keller 56 days ago | 19 comments
Google is making it even easier to remove your personal information on Search (engadget.com)
Google has been offering the Results About You tool since 2022 and updated it once in 2023.
Privacy, Google, Search
8 points by 01-_- 58 days ago | 1 comments
VectorChord-BM25: PostgreSQL Search with BM25 – 3x Faster Than Elasticsearch (vectorchord.ai)
We’re excited to share something special with you: VectorChord-BM25, a new extension designed to make PostgreSQL’s full-text search even better. Whether you’re building a small app or managing a large-scale system, this tool brings advanced BM25 scoring and ranking right into PostgreSQL, making your searches smarter and faster.
PostgreSQL, Search, Performance, Open Source, Databases
5 points by gaocegege 60 days ago | 0 comments
Just Write (chasingbrains.co)
A blog post is a very long and complex search query to find fascinating people and make them route interesting stuff to your inbox.
Content Creation, Blogging, Search
108 points by marksully 63 days ago | 40 comments
(Ab)using general search algorithms on dynamic optimization problems (2023) (dubovik.eu)
In retrospect, my most ambitious blog yet. As it goes, I was reading “Artificial Intelligence. A Modern Approach” the other day. In one of the earlier chapters the authors discuss general search algorithms: breadth-first search, depth-first search, uniform-cost search (Dijkstra), and variations of those. A bit later they also cover Monte Carlo tree search as a way of finding approximate solutions in big state spaces.
Algorithms, Artificial Intelligence, Computer Science, Optimization, Search
63 points by h45x1 68 days ago | 7 comments
Show HN: A GPU-accelerated binary vector index (rlafuente.com)
GPU Acceleration, Vector Index, Search, Computer Science
65 points by andes314 68 days ago | 7 comments
Solving Postgres' Search Limitations (paradedb.com)
We recently completed one of our biggest engineering bets to date: migrating pg_search, a Postgres extension for full text search and analytics, to Postgres' block storage system. In doing so, pg_search is the first-ever extension1 to port an external file format to Postgres block storage.
Databases, PostgreSQL, Search, Open Source, Performance
7 points by philippemnoel 78 days ago | 0 comments
Open-source DeepResearch – Freeing our search agents (huggingface.co)
Yesterday, OpenAI released Deep Research, a system that browses the web to summarize content and answer questions based on the summary.
Open-source, Search, AI, Generative AI
7 points by xd1936 78 days ago | 0 comments
DeepSeek models are available now in Cursor (twitter.com)
Deep Learning, Software, AI, Search
9 points by mfiguiere 85 days ago | 1 comments
Perplexity launches Sonar, an API for AI search (techcrunch.com)
Perplexity on Tuesday launched an API service called Sonar, allowing enterprises and developers to build the startup’s generative AI search tools into their own applications.
Generative AI, APIs, Search, Startups
5 points by gemanor 92 days ago | 1 comments
Using the most unhinged AVX-512 instruction to make fastest phrase search algo (gab-menezes.github.io)
Do you know when you go to your favorite search engine and search for something using double quotes, like a passage of a book/article or something very specific? That’s called phrase search (sometimes exact search). What we are telling the search engine is that we want these exact words in this exact order (this varies from search engine to search engine, but that’s the main idea).
Algorithms, Search, Optimization, Computer Architecture
231 points by cmcollier 92 days ago | 61 comments