Nov 22

What Is the Efficient Market Hypothesis (EMH)

What Is the Efficient Market Hypothesis (EMH)?
The efficient market hypothesis (EMH), alternatively known as the efficient market theory, is a hypothesis that states that share prices reflect all available information and consistent alpha generation is impossible.

According to the EMH, stocks always trade at their fair value on exchanges, making it impossible for investors to purchase undervalued stocks or sell stocks for inflated prices.

Therefore, it should be impossible to outperform the overall market through expert stock selection or market timing, and the only way an investor can obtain higher returns is by purchasing riskier investments.”

Ref: https://www.investopedia.com/terms/e/efficientmarkethypothesis.asp

“Opponents of EMH believe that it is possible to beat the market and that stocks can deviate from their fair market values.” [2]

We predict stocks using
Usually: Proper selection of
Stocks and Time Intervals
Statistics
Machine Learning

This paper goes beyond and Uses
Spatio-Temporal Relationship
among stocks
Graph theory

Nov 17

Solution that worked for the issue: Your current session has been expired. for Magento2

Solution that worked for the issue: Your current session has been expired. for Magento2

cat shell-scripts/temp.sh
# fix misc issues, can be routine

sudo php bin/magento maintenance:enable
#sudo rm -rf var/cache/
#sudo rm -rf generated/
sudo chmod +x bin/magento
sudo php bin/magento setup:upgrade
#sudo php bin/magento setup:static-content:deploy -f
sudo php bin/magento setup:di:compile
sudo php bin/magento indexer:reindex
sudo php bin/magento cache:clean
sudo php bin/magento cache:flush
sudo php bin/magento setup:static-content:deploy -f
sudo php bin/magento maintenance:disable

#Then adjust permissions for var

# other options tried: 

did not solve:
INSERT INTO `core_config_data` (`scope`, `scope_id`, `path`, `value`)
    VALUES ('default', 0, 'admin/security/session_lifetime', '86400');

Tried but did not help

Go to : admin_user_session table in MySql Set created_at column to ‘0’ and updated_at column to ‘CURRENT_TIMESTAMP’ as it is.

Oct 06

lecture 02 object oriented programming in PHP 5

https://youtu.be/QJSYVubQTfg

Sep 29

lecture 02 game design components and process

https://youtu.be/OqoY7Xazf7Q

Sep 22

lec 7 accuracy sensor measures

https://youtu.be/ZzuRy_y-xW0

Sep 15

lec 6 based on time measures

https://youtu.be/7qTcR9w8R7U

Sep 13

AI and Machine Learning Algorithms: Part – 5 (Polynomial Regressions)

Sep 01

lec 2 performance measurement categories for performance measurements of tracking applications such

https://youtu.be/p88UOH_QPXk

Aug 29

Misc. Models in Machine Learning

Factor Analysis:

GPCM/GGPCM:

GPCM Gaussian Process Convolution Model

Generalised Gaussian Process Convolution Model (GGPCM), which is a generalisation of the Gaussian Process Convolution Model presented by Tobar et al.

https://www.mlmi.eng.cam.ac.uk/files/wessel_bruinsma_8224721_assignsubmission_file_bruinsma_wessel_dissertation.pdf

What is GPCM Model? Generic Predictive Computational Model 

Example Research on GPCM: https://ieeexplore.ieee.org/document/9944777

https://en.wikipedia.org/wiki/Mixture_model

https://www.sciencedirect.com/topics/medicine-and-dentistry/mixture-model

Aug 26

Normal/Gaussian Distribution: Understanding data for Machine Learning and Data Science Projects.

Normal/Gaussian Distribution: Bell Curve

https://mathworld.wolfram.com/NormalDistribution.html

Univariate Normal Distribution:

BiVariate Normal/Gaussian Distribution

https://www.probabilitycourse.com/chapter5/5_3_2_bivariate_normal_dist.php

Multi Variate Random variable

https://en.wikipedia.org/wiki/Multivariate_normal_distribution