Google-Wide Profiling: A Continuous Profiling Infrastructure for Data CentersPhilosophy We strive to create an environment conducive to many different types of research across many different time scales and levels of risk. Learn more about our Philosophy Learn more
Is Google's software infrastructure obsolete?
Answer (1 of 12): As another Xoogler said to me, working at Google (and then moving to open source) is like coming from the future. (I estimate it to be 5-8 years in the future). You know what the infrastructure should look like several years down the road. The Google infrastructure is far more s...
Schema.org - Schema.org
Schema.org is a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet, on web pages, in email messages, and beyond. Schema.org vocabulary can be used with many different encodings, including RDFa, Microdata and JSON-LD. These vocabularies cover entities, relationships between entities and actions, and can easily be extended th
Google Correlate
Google Correlate finds search patterns which correspond with real-world trends.Find searches that correlate with real-world data Google Correlate finds search patterns which correspond with real-world trends. It is best understood through examples. Correlations over time Most search terms vary in popularity over time. Find search terms that… …are more popular in winter…were more likely to be issue
Why Google’s hiring process is broken | Teambox Blog
Some context…Google is one of today’s top companies, thanks to their continued efforts in building the best and fastest algorithms.They have put together a yet-to-be-matched team of engineers, and I enjoy using their search and Google Apps every day. Even our product, Teambox, is tightly integrated with Google Docs and their offerings.However, Google still struggles to reach consumers in many ways
LevelDBを読む人たち
SKS rep @repeatedly あ，WAL使ってなかった．しかしどうやって非同期になってんだ？普通にmemcpyとかしてるようにしか見えんが…
GitHub - google/cityhash: Automatically exported from code.google.com/p/cityhash
CityHash, a family of hash functions for strings. Introduction ============ CityHash provides hash functions for strings. The functions mix the input bits thoroughly but are not suitable for cryptography. See "Hash Quality," below, for details on how CityHash was tested and so on. We provide reference implementations in C++, with a friendly MIT license. CityHash32() returns a 32-bit hash. CityHash
Dremel: Interactive Analysis of Web-Scale Datasets
The document describes Dremel, an interactive analysis system for web-scale datasets. Dremel uses a columnar data storage model and tree-based query serving architecture to enable interactive analysis of trillion record datasets distributed across thousands of nodes. It provides an SQL-like interface and can process queries orders of magnitude faster than traditional MapReduce systems by avoiding
[IR] Google WSDM'09講演で述べられている符号化方式を実装してみた - tsubosakaの日記
MG勉強会の後にid:sleepy_yoshiさんに教えてもらったWSDM 2009における講演"Challenges in Building Large-Scale Information Retrieval Systems"で述べられている符号化方式のGroup Varint Encodingを実装してみた。 資料 講演スライド スライドの日本語による解説記事 整数の符号化方式 転置インデックスなどで文章番号のリストを前の値との差分で表すなどの方法を用いると出現する、ほとんどの値は小さな値となるためこれを4バイト使って表現するのは記憶容量の無駄である。 このためVarint Encoding、ガンマ符号、デルタ符号、Rice Coding、Simple 9、pForDeltaなど様々な符号化方式が提案されている。このうちVarint Encodingは実装が手軽なことからよく用いられて
![[IR] Google WSDM'09講演で述べられている符号化方式を実装してみた - tsubosakaの日記](https://cdn-ak-scissors.b.st-hatena.com/image/square/d5a026a6225c4524c834d0237efa271b5b0d54f0/height=288;version=1;width=512/https%3A%2F%2Fogimage.blog.st-hatena.com%2F17680117127124028144%2F17680117127124030436%2F1557332443)
GitHub - google/open-vcdiff: An encoder/decoder for the VCDIFF (RFC3284) format
open-vcdiff is an encoder and decoder for the VCDIFF format, as described in RFC 3284: The VCDIFF Generic Differencing and Compression Data Format. You will need to first synchronize gflags and gtest by running git submodule update --init --recursive. Or if you have system installed gflags and/or gtest libraries you can provide -Dvcdiff_use_system_gflags=ON and -Dvcdiff_use_system_gtest=ON for cma
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Google Code Archive - Long-term storage for Google Code Project Hosting.
Google Cluster Innards
Storage Architecture and Challenges
http://pagespeed.googlelabs.com/
GitHub - google/diff-match-patch: Diff Match Patch is a high-performance library in multiple languages that manipulates plain text.
plda - Google Code
Research Blog: A Runtime Solution for Online Contention Detection and Response
Think Like a {Vertex, Column, Parallel Collection}
Google Code University - Google Code
Google Code Archive - Long-term storage for Google Code Project Hosting.