Dot added to the end of the caption text

Wrong doctopic matrix fixed

Wrong doctopic matrix fixed

Typo fixed

Grammar typo fixed

Co-Authored-By: Fabio Stella <fastella@users.noreply.github.com>

Sampling explicited random

Better introduction and abstract

Co-Authored-By: Antonio Vivace <avivace@cern.ch>

Can not is now cannot

Co-Authored-By: Adrian Castro <562969+ial32@users.noreply.github.com>

Thesis errors fixed

Errors in the thesis spotted by @IAL32 and then fixed

Co-Authored-By: Adrian Castro <ial32@users.noreply.github.com>

Introduction added to the thesis

Some conclusions added to the thesis