Below are four different (partially overlapping) lists of papers one should read in distributed systems. Dan Creswell: A Distributed Systems Reading List Swami Sivasubramanian: Building scalable systems Dr. Manish Parashar: Parallel and Distributed Computing Bytepawn: Readings in distributed systems (currently…
I have found some tutorials (1 and 2) for using the hstore column type in PostgreSQL. This blog post is specific to querying OpenStreetMap data using the tags column in relations ways and nodes (the tags column is a hstore).
This blog post is made as a “note-to-self” so that I can remember the procedure. You are of course welcome to read along. It’s does nothing fancy, simply imports the planet.osm file into PostGIS using Osmosis with the Snapshot Schema.…
Situation: You have a large pile of computer science papers in front of you. You want to read them all. What to do? My suggestion is that you read the two guides below. They are really short and helpful. I’m…
VM benchmarking General benchmarking tools phoronix is a testing and benchmarking platform.
So you have a list of tuples, created with the zip built-in function in Python. Like this: z = [(1, ‘a’), (2, ‘b’), (3, ‘c’)] And you want to reverse zip, to get these two lists: x = [1, 2,…
Given a numpy matrix (mixed_float_matrix) with a variety of float values, how do you convert it into a matrix, with zeros and ones (ones in place of non-zero values in the original matrix)?
I have a (CSV) file that I want to split in two. I want all the even lines to go to one file, and all the odd lines to go to another file. $ ls -1 FILE [MAGIC] $ ls…
Sometimes my head hurts from all the papers I have to read. All the lines of software I have to code. All the pages of high quality scientific output I have to write. All the people I have to impress.…
I’m learning about matplotlib, and actually just bought the book Matplotlib for Python Developers. Geographical plots Browsing stackoverflow, the matplotlib homepage, and other resources, I eventually came by this stackoverflow post, which mentions BaseMap. Since the data that I’m plotting…