Ubuntu Atom editor 설치

sudo add-apt-repository ppa:webupd8team/atom
sudo apt-get update
sudo apt-get install atom

Denoising Autoencoder

Visualization of weights["h1"]
https://github.com/dalek7/DNN/blob/master/tensorflow/autoencoder/

Goldcrest Wilma

율마. 이렇게 가지런히 두니 예쁘다.

을묘사직소

단성소
https://namu.wiki/w/%EB%8B%A8%EC%84%B1%EC%86%8C

450년 전 역사의 데자뷰...
http://news.mk.co.kr/newsReadPrint_2013.php?year=2016&no=775834

Clustering by fast search and find of density peaks

Clustering by fast search and find of density peaks
by Alex Rodriguez, Alessandro Laio
http://comments.sciencemag.org/content/10.1126/science.1242072
http://conference.mipt.ru/img/conference/material-design-2014/talks/Laio-talk.pdf

thermal referral

When warm thermal stimulators are placed on the ring and index fingers of one hand, and a neutral-temperature stimulator on the middle finger, all three fingers feel warm. This illusion is known as thermal referral (TR).

See http://www.nature.com/articles/srep35286

Cataldo, Antonio, et al. "Thermal referral: evidence for a thermoceptive uniformity illusion without touch." Scientific reports 6 (2016).

Closed Form Solution of Absolute Orientation using Unit Quaternions

Horn, Berthold KP. "Closed-form solution of absolute orientation using unit quaternions." JOSA A 4.4 (1987): 629-642.

http://people.csail.mit.edu/bkph/papers/Absolute_Orientation.pdf
See Sim3Solver of ORB-SLAM2 project.

g2o sphere with optimization

See https://github.com/dalek7/Algorithms/tree/master/Optimization/g2o/g2otest-sphere for more details.

Curve Fitting via Optimization (g2o)

https://github.com/dalek7/Algorithms/tree/master/Optimization/g2o/g2otest-curvefit

Eigen library test project (Code::Blocks)

Code::Blocks 에서 테스트

https://github.com/dalek7/umbrella/tree/master/Eigen/TestEigen

jupyter notebook 설치 (OS X)

https://github.com/dalek7/DNN/blob/master/installation.md

Curve Fitting via Optimization in Android Platform

based on levmar (Levenberg-Marquardt nonlinear least squares algorithms)
https://github.com/dalek7/Algorithms/tree/master/Optimization/LevmarAndroid

AxisAngle to Quaternion

qx = ax * sin(angle/2)
qy = ay * sin(angle/2)
qz = az * sin(angle/2)
qw = cos(angle/2)

where:

the axis is normalised so: ax*ax + ay*ay + az*az = 1
the quaternion is also normalised so cos(angle/2)2 + ax*ax * sin(angle/2)2 + ay*ay * sin(angle/2)2+ az*az * sin(angle/2)2 = 1

// assumes axis is already normalised
public void set(AxisAngle4d a1) {
  double s = Math.sin(a1.angle/2);
  x = a1.x * s;
  y = a1.y * s;
  z = a1.z * s;
  w = Math.cos(a1.angle/2);
}

http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/

NDK-seup

https://github.com/dalek7/umbrella/blob/master/NDK/NDK-setup.md