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morenoh149 /
Last active Nov 23, 2019
Intro to smart contract programming in solidity Oct 2019
morenoh149 /
Last active Jan 27, 2020
Intro to blockchain programming in js

Introduction to Blockchain Programming, Jan 2020

Explain blockchain

Chain of blocks

morenoh149 / dp01.js
Created Feb 26, 2019
Dynamic programming example
View dp01.js
// The following was translated from python.
// See
const dynamicCoinChanging = (coins, target) => {
let n = coins.length;
let dp = [0];
for (let i=0; i < target; i++) {
for (let i=0; i <= n; i++) {
morenoh149 /
Created Feb 12, 2019
Tensorflow serve on Sagemaker
def export_h5_to_pb(path_to_h5, export_path):
# Set the learning phase to Test since the model is already trained.
# Load the Keras model
keras_model = load_model(path_to_h5)
# Build the Protocol Buffer SavedModel at 'export_path'
builder = saved_model_builder.SavedModelBuilder(export_path)

Soldity Workshop


Attendees should do the following before the event to get the most out of it. There will be a 20 minute lecture-overview at the beginning. You can do the prerequisites during the overview if you have not done so by then.

  1. install node.js (lts version is recommended)
  2. install git (use brew if on osx)
  3. install a code editor (vscode or
morenoh149 /
Created Dec 5, 2018
Advent of Code 2018 Day 4 solution
import re
import pprint
pp = pprint.PrettyPrinter(indent=2)
def Input():
filename = './input.txt'
return open(filename)
lines = Input().read().split('\n')
morenoh149 / postgis-geojson-liaison.js
Created Nov 9, 2018 — forked from DesignByOnyx/postgis-geojson-liaison.js
Helpful utility for converting postgis data into GeoJSON as it comes out of the db, and vice versa.
View postgis-geojson-liaison.js
var wkx = require('wkx')
var pg = require('pg')
var pgUtil = require('pg/lib/utils')
const geoParser = {
// 1. Convert postgis data coming out of the db into geoJSON
// Every postgres installation will have different oids for postgis geo types.
.raw('SELECT oid, typname AS name FROM pg_type WHERE typname IN (\'geography\', \'geometry\');')
View fetch_parallel.js
const getInvite = fetch(
const getHost = fetch(`${apiHost}/user/${}/`);
Promise.all([getInvite, getHost, delayPromise(1000)()])
.then(values => {
values.pop(); // drop delayPromise's return value (undefined)
return => v.json());
import tensorflow as tf
from keras import backend as K
from tensorflow.python.saved_model import builder as saved_model_builder
from tensorflow.python.saved_model import tag_constants, signature_constants
from tensorflow.python.saved_model.signature_def_utils_impl import predict_signature_def
builder = saved_model_builder.SavedModelBuilder('vgg16_no_augmentation_export')
signature = predict_signature_def(inputs={'input': parallel_model.inputs[0]},
outputs={'income': parallel_model.outputs[0]})
MemoryError Traceback (most recent call last)
<ipython-input-22-567222df1eb0> in <module>()
----> 1 x_train = vectorize_sequences(train_data)
2 x_test = vectorize_sequences(test_data)
<ipython-input-21-5d7c33381575> in vectorize_sequences(sequences, dimension)
2 # are a 1 in the tensor, 0 otherwise
3 def vectorize_sequences(sequences, dimension=10000):
----> 4 results = np.zeros((len(sequences), dimension))
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