The latest blog posts to take off on Hacker News. 54 posts.
The big Cassandra vs Mongodb vs CouchDB vs Redis, vs Riak vs HBase vs Couchbase (ex-Membase) vs OrientDB vs Aerospike vs Neo4j vs Hypertable vs ElasticSearch vs Accumulo vs VoltDB vs Scalaris vs RethinkDB vs Kyoto Tycoon comparison. While SQL databases are insanely useful tools, their monopoly in the last decades is…
Links to social profiles of Ioannis Cherouvim
The process of extracting patterns from data is called data mining. It is recognized as an essential tool by modern business since it is ab...
For the past month or so I've been working on writing my own ORM in Python. The project grew out of a need for a lightweight persistence layer for use in Flask web apps. As I've grown so familiar with the Django ORM over the past year, many of the ideas in Peewee are analagous to the concepts in Django. My goal from…
Today Amazon Web Services takes another step on the continuous innovation path by announcing a new Amazon EC2 instance type: The Cluster GPU Instance. Based on the Cluster Compute instance type, the Cluster GPU instance adds two NVIDIA Telsa M2050 GPUs offering GPU-based computational power of over one TeraFLOPS per…
UPDATE: Oracle officially released memcached daemon plugin that talks with InnoDB. I'm glad to see that NoSQL+MySQL has become an official ...
A deep dive into the data structure server: origins, design decisions, feature set, applications, and more.
Update: Also read A brief update on NUMA and MySQL. The “swap insanity” problem, in brief When running MySQL on a large system (e.g., 64GB RAM and dual quad core CPUs) with a large Inno…
I wrote a script to crawl U.S. App Store customer reviews for the top 100 apps from every category (minus duplicates) and compute the most common words in 1-star and 5-star reviews, excluding words that were also common in 3-star reviews.
A forum moderated by author and artist Edward Tufte, including discussion and questions dealing with information design.
(This post is coauthored by Alexander Thomson and Daniel Abadi ) It is a poorly kept secret that NoSQL is not really about eliminating SQL ...
In recent days I’ve been thinking of JavaOne, as we kicked it around and decided we just couldn’t send speakers ; and of Oracle OpenWorld , to which JavaOne will now serve as an appendage. It reminded me of a conversation I had last year about Oracle.
I've been asked by several people to explain why I use Clojure for my professional work rather than Racket. ABOUT RACKET I have been using R...
William Kent, "A Simple Guide to Five Normal Forms in Relational Database Theory", Communications of the ACM 26(2), Feb. 1983, 120-125. Also IBM Technical Report TR03.159, Aug. 1981. Also presented at SHARE 62, March 1984, Anaheim, California. Also in A.R. Hurson, L.L. Miller and S.H. Pakzad, Parallel Architectures…
Update May 2018: This is more rant-ish than I would write now, but it’s my only post to hit the front page of HackerNews (it got to the number 2 spot back in 2010; I saved screenshots), so has a soft-place in my heart.
Mergesort and Quicksort are two well-known sorting algorithms, familiar to both researchers and practitioners. Both are typically presented as examples of divide and conquer . Other than this fact, they are usually not seen to be very closely related. Let’s look at Mergesort and Quicksort in a somewhat unusual way…
SQL is ugly but powerful, ORM is genuinely dumb, and "NoSQL" should really be called OMADS: Obviously More Appropriate Data Stores. Start every project with an RDBMS, add specialized stores where they fit, and stop apologizing for using SQL. Forty years on, nothing beats it for ad-hoc questions about your data.
