Tags

ANN (5) AWS (1) C (1) Delaunay (2) HTML, (1) JSON (1) QP (2) Thiessen (1) Voronoi (1) algorithms (5) cfa (1) cloudant (1) development (2) finance (4) github (5) gzip (1) holidays (1) iphone (1) java (1) javascript (1) jekyll (5) numexpr (1) numpy (1) pointset (2) python (2) quad-edge (1) quandl (1) quick (1) reference (1) select (1) smileupps.com (1) tensorflow (6) timing (2) vision (1) yahoo (1)

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ANN

ANN References 2018-11-01 algorithms reference vision
Artifical Neural Network References.

Two Input Classifier 2018-05-22 tensorflow
This notebook demonstrates the need for multi-layer ANN when the solution involves fitting many non-linear edges.

Reverse mode Automatic Differentiation 2018-05-03 tensorflow algorithms
TensorFlow uses a computational graph because it uses a Reverse mode Automatic Differentiation algorithm.

Emulating qtest with an ANN 2018-04-12 pointset Delaunay tensorflow
I found that the qtest used in a Delaunay triangulation algorithm was difficult to emulate with an ANN.

Modeling Binary and Unary Operators with an Artifical Neural Network 2018-02-14 tensorflow
To develop an understanding of tensorflow’s ANN I implemented regression models of several unary and binary functions.

AWS

AWS configuration 2019-04-28
AWS - Amazon Web Services

C

qppenalty 2018-06-29 algorithms QP python java javascript
This notebook implements qppenalty: a program that solves quadratic programming problems.

Delaunay

Emulating qtest with an ANN 2018-04-12 pointset tensorflow ANN
I found that the qtest used in a Delaunay triangulation algorithm was difficult to emulate with an ANN.

pointset class for Delaunay triangulation 2018-04-02 pointset Voronoi Thiessen quad-edge
The pointset class provides a framework for studying Delaunay triangulations.

HTML,

Copy a Webpage to JSON 2023-12-26 JSON
Bookmarklets have been around for a long time. The concept is to attached some Javascript code in a bookmark. Over the years this process has changed. The tricky bit is to copy the link into an existing bookmark. So, for example, you can make a bookmark for this page, then in your browser edit the bookmark with a name like Convert a Webpage to JSON. Then copy the address of the link below called Convert this page to JSON and paste it into the Bookmark link. After running this bookmarklet inspect the result using JSONpath or similar online JSON parser. If you use JSONpath with the output from the link below, try a path like $..MAIN..UL[*].LI.

JSON

Copy a Webpage to JSON 2023-12-26 HTML,
Bookmarklets have been around for a long time. The concept is to attached some Javascript code in a bookmark. Over the years this process has changed. The tricky bit is to copy the link into an existing bookmark. So, for example, you can make a bookmark for this page, then in your browser edit the bookmark with a name like Convert a Webpage to JSON. Then copy the address of the link below called Convert this page to JSON and paste it into the Bookmark link. After running this bookmarklet inspect the result using JSONpath or similar online JSON parser. If you use JSONpath with the output from the link below, try a path like $..MAIN..UL[*].LI.

QP

qppenalty 2018-06-29 algorithms python C java javascript
This notebook implements qppenalty: a program that solves quadratic programming problems.

TF Quadratic Programming 2018-05-20 tensorflow algorithms
Using a penalty function technique, I used TensorFlow to solve constrained quadratic programming problems.

Thiessen

pointset class for Delaunay triangulation 2018-04-02 pointset Delaunay Voronoi quad-edge
The pointset class provides a framework for studying Delaunay triangulations.

Voronoi

pointset class for Delaunay triangulation 2018-04-02 pointset Delaunay Thiessen quad-edge
The pointset class provides a framework for studying Delaunay triangulations.

algorithms

ANN References 2018-11-01 reference ANN vision
Artifical Neural Network References.

qppenalty 2018-06-29 QP python C java javascript
This notebook implements qppenalty: a program that solves quadratic programming problems.

TF Quadratic Programming 2018-05-20 tensorflow QP
Using a penalty function technique, I used TensorFlow to solve constrained quadratic programming problems.

Reverse mode Automatic Differentiation 2018-05-03 tensorflow ANN
TensorFlow uses a computational graph because it uses a Reverse mode Automatic Differentiation algorithm.

Quickselect Performance 2018-04-01 quick select
Turns out that select is much faster than sort algorithms for calculating the median of a data set.

cfa

CFA FinTech Machine Learning Talk 2018-01-17 finance
Sanjiv Ranjan Das srdas spoke on the use of machine learning and other artifical intelligence techniques in financial services.

cloudant

IBM Changes Cloudant, Smileupps.com 2018-03-20 smileupps.com
IBM has taken over Cloudant which I had been using as a live site for pry, so I needed to move the site.

development

gzip on the iphone 2018-01-19 gzip iphone
Before sending out some data from the iphone, I wanted to compress it in a well known format. I didn’t find a simple solution to this, so I wrote this function:

gdb on MacOS 2017-05-12
I was surprised to find that my Mac OS included gcc but not gdb. Getting gdb working is non-trivial. This article was helpful in getting this to work after: brew install gdb

finance

Holidays from Quadl Prices 2018-02-20 quandl holidays
A Jupyter notebook for calculating non-tradedays based on Quadl prices.

Plot of Dow Component performance 2018-02-19
A Jupyter notebook for plotting Dow Component performance.

CFA FinTech Machine Learning Talk 2018-01-17 cfa
Sanjiv Ranjan Das srdas spoke on the use of machine learning and other artifical intelligence techniques in financial services.

Yahoo Financial Historical Prices 2017-07-25 yahoo
I created a Jupyter notebook for downloading AAPL historical prices due to recent changes in the Yahoo Finance website. The notebook can be download here or viewed online at GitHub.

github

Minima theme change problem 2018-03-21 jekyll
While trying to update my GitHub site, I got an error about a symbolic link being missing in my default.html. This was strange since I didn’t have a default.html file. The problem was a recent update to the Minima theme which the site uses.

jekyll problems 2018-01-19 jekyll
My local installation of bundle and jekyll became corrupted.

Jekyll sitemap and seo plugins 2017-05-15 jekyll
I read that GitHub has some support for Jekyll plugins. With some difficulty I added the sitemap plugin that is supported.

Reducing GitHub commits 2017-05-12 jekyll
In order to test functionality of GitHub, I’ve had to make many commits and pushes onto GitHub. After making adjustments I didn’t need this multitude of commits.

Using Jekyll to Deploy to GitHub 2017-05-02 jekyll
I’ve tried a few static site builder with GitHub pages, such as brunch and Metalsmith. Since Jekyll is popular and is recommended for GitHub, I’ve decided to give it a try.

gzip

gzip on the iphone 2018-01-19 development iphone
Before sending out some data from the iphone, I wanted to compress it in a well known format. I didn’t find a simple solution to this, so I wrote this function:

holidays

Holidays from Quadl Prices 2018-02-20 finance quandl
A Jupyter notebook for calculating non-tradedays based on Quadl prices.

iphone

gzip on the iphone 2018-01-19 development gzip
Before sending out some data from the iphone, I wanted to compress it in a well known format. I didn’t find a simple solution to this, so I wrote this function:

java

qppenalty 2018-06-29 algorithms QP python C javascript
This notebook implements qppenalty: a program that solves quadratic programming problems.

javascript

qppenalty 2018-06-29 algorithms QP python C java
This notebook implements qppenalty: a program that solves quadratic programming problems.

jekyll

Minima theme change problem 2018-03-21 github
While trying to update my GitHub site, I got an error about a symbolic link being missing in my default.html. This was strange since I didn’t have a default.html file. The problem was a recent update to the Minima theme which the site uses.

jekyll problems 2018-01-19 github
My local installation of bundle and jekyll became corrupted.

Jekyll sitemap and seo plugins 2017-05-15 github
I read that GitHub has some support for Jekyll plugins. With some difficulty I added the sitemap plugin that is supported.

Reducing GitHub commits 2017-05-12 github
In order to test functionality of GitHub, I’ve had to make many commits and pushes onto GitHub. After making adjustments I didn’t need this multitude of commits.

Using Jekyll to Deploy to GitHub 2017-05-02 github
I’ve tried a few static site builder with GitHub pages, such as brunch and Metalsmith. Since Jekyll is popular and is recommended for GitHub, I’ve decided to give it a try.

numexpr

Numeric Calculation Timing 2018-05-20 python numpy timing
Comparison of python, numpy and numexpr performance.

numpy

Numeric Calculation Timing 2018-05-20 python numexpr timing
Comparison of python, numpy and numexpr performance.

pointset

Emulating qtest with an ANN 2018-04-12 Delaunay tensorflow ANN
I found that the qtest used in a Delaunay triangulation algorithm was difficult to emulate with an ANN.

pointset class for Delaunay triangulation 2018-04-02 Delaunay Voronoi Thiessen quad-edge
The pointset class provides a framework for studying Delaunay triangulations.

python

qppenalty 2018-06-29 algorithms QP C java javascript
This notebook implements qppenalty: a program that solves quadratic programming problems.

Numeric Calculation Timing 2018-05-20 numpy numexpr timing
Comparison of python, numpy and numexpr performance.

quad-edge

pointset class for Delaunay triangulation 2018-04-02 pointset Delaunay Voronoi Thiessen
The pointset class provides a framework for studying Delaunay triangulations.

quandl

Holidays from Quadl Prices 2018-02-20 finance holidays
A Jupyter notebook for calculating non-tradedays based on Quadl prices.

quick

Quickselect Performance 2018-04-01 select algorithms
Turns out that select is much faster than sort algorithms for calculating the median of a data set.

reference

ANN References 2018-11-01 algorithms ANN vision
Artifical Neural Network References.

select

Quickselect Performance 2018-04-01 quick algorithms
Turns out that select is much faster than sort algorithms for calculating the median of a data set.

smileupps.com

IBM Changes Cloudant, Smileupps.com 2018-03-20 cloudant
IBM has taken over Cloudant which I had been using as a live site for pry, so I needed to move the site.

tensorflow

Two Input Classifier 2018-05-22 ANN
This notebook demonstrates the need for multi-layer ANN when the solution involves fitting many non-linear edges.

Noise and Batch Size in Linear Regression 2018-05-21 timing
Using a linear regression, I find that a batch size of 32 or larger works best in tensorflow.

TF Quadratic Programming 2018-05-20 algorithms QP
Using a penalty function technique, I used TensorFlow to solve constrained quadratic programming problems.

Reverse mode Automatic Differentiation 2018-05-03 ANN algorithms
TensorFlow uses a computational graph because it uses a Reverse mode Automatic Differentiation algorithm.

Emulating qtest with an ANN 2018-04-12 pointset Delaunay ANN
I found that the qtest used in a Delaunay triangulation algorithm was difficult to emulate with an ANN.

Modeling Binary and Unary Operators with an Artifical Neural Network 2018-02-14 ANN
To develop an understanding of tensorflow’s ANN I implemented regression models of several unary and binary functions.

timing

Noise and Batch Size in Linear Regression 2018-05-21 tensorflow
Using a linear regression, I find that a batch size of 32 or larger works best in tensorflow.

Numeric Calculation Timing 2018-05-20 python numpy numexpr
Comparison of python, numpy and numexpr performance.

vision

ANN References 2018-11-01 algorithms reference ANN
Artifical Neural Network References.

yahoo

Yahoo Financial Historical Prices 2017-07-25 finance
I created a Jupyter notebook for downloading AAPL historical prices due to recent changes in the Yahoo Finance website. The notebook can be download here or viewed online at GitHub.