Philip Dow phildow

Machine learning on the edge

phildow / map.rb

Created February 7, 2013 23:27

Implement map in ruby using a recursive function that takes a block

	#!/usr/bin/env ruby -w

	def map(l,&f)
	return [] if l.empty?
	return [ f.call(l.first) ].concat map(l.slice(1..l.length), &f)
	end

	puts map [1,2,3,4] {\|x\| x+1}
	puts map ['a','b','c','d'] {\|x\| "#{x} is a letter"}

phildow / gist:5118857

Last active December 14, 2015 16:59

Initializing an NSArray with a block that is called for each element, allowing the array elements to initialize themselves as the array is built.

	// NSArray+BlocksInit.h

	- (id) initWithCount:(NSUInteger)count block:(id(^)(NSUInteger index))block
	{
	NSMutableArray *array = [[NSMutableArray alloc] init];
	for ( NSUInteger i = 0; i < count; i++ ) {
	id element = block(i);
	if (element) [array addObject:element];
	}
	return [array copy];

phildow / CLLocation+EXIFGPS.h

Last active December 2, 2019 02:37

Category to create GPS metadata dictionary from CLLocation and CLHeading for writing to EXIF data in images.

	#import <CoreLocation/CoreLocation.h>
	#import <ImageIO/ImageIO.h>

	@interface CLLocation (EXIFGPS)

	- (NSDictionary) EXIFMetadataWithHeading:(CLHeading)heading;

	@end

	@interface NSDate (EXIFGPS)

phildow / UIImage+SDWebImageAnimatedGifSwizzle.h

Created August 26, 2015 20:17

	#import <UIKit/UIKit.h>

	@interface UIImage (SDWebImageAnimatedGifSwizzle)

	@end

phildow / session_config.py

Last active January 21, 2020 20:03

Prevent CUDA initialization failures in tensorflow with gpu_options.allow_growth=True

	# Using tf.estimator without keras

	session_config = tf.ConfigProto()
	session_config.gpu_options.allow_growth=True
	run_config = tf.estimator.RunConfig(session_config=session_config)
	classifier = tf.estimator.Estimator(model_fn=..., config=run_config)

	# Using any keras

	session_config = tf.ConfigProto()

phildow / Git Aliases

Created May 21, 2020 20:02