SciTech-Mathmatics-UNIQUE FACTORIZATION THEOREM + Science Hackathon Prizes@Kaggle.com

abaelhe / 2024-02-20 / 原文

SciTech-Mathmatics-UNIQUE FACTORIZATION THEOREM

https://brilliant.org/wiki/fundamental-theorem-of-arithmetic/

Elementary_Number_Theory:
https://math.libretexts.org/Bookshelves/Combinatorics_and_Discrete_Mathematics/Elementary_Number_Theory_(Clark)/01%3A_Chapters/1.11%3A_Unique_Factorization

https://public.csusm.edu/aitken_html/m422/Handout2.pdf

https://www.oxfordreference.com/display/10.1093/oi/authority.20110803110719647

UNIQUE FACTORIZATION THEOREM

In general, Every integer \(\large n > 1\) can be written UNIQUELY in the form:
\(\large \begin{array}{ccl} n &=& P_{1}^{a_1} \cdot P_{1}^{a_1} \cdot ... \cdot P_{s}^{a_s}\ \\ &=& \prod_{i=1}^{s} P_{i}^{a_i}\ \\ &where&\ P_1 < P_2 < ... < P_s \leq n\ ,\ \ P_i \ is\ PRIME\ ,\ \\ & &\ a_i \geq 1\ ,\ for\ all\ i\ \in [\ 1, s\ ]\ ,\ \ s \in\ [\ 1, n\ ] \cap Z^+\ . \\ \end{array}\)

Unique Factorization Theorem

https://brilliant.org/wiki/fundamental-theorem-of-arithmetic/
The fundamental theorem of arithmetic (FTA), also called the unique-prime-factorization theorem,
states that every integer greater than than 1:

  • either is prime itself
  • or is the product of a unique combination of prime numbers.

Music Hackathon: EMI Music Data Science Hackathon

https://www.kaggle.com/c/MusicHackathon
Music Data Science Hackathon Prizes (sponsored by EMI and EMC), - July 21st - 24 hours

  • 1st Global Prize – £2,500
  • 2nd Global Prize – £1,000
  • 3rd Global Prize – £500
  • London Venue Prize - £2,000
  • Data Visualization Prize - £500 (sponsored by Adatis)

fastFM: A Library for Factorization Machines

https://jmlr.csail.mit.edu/papers/volume17/15-355/15-355.pdf

pyFM: Factorization Machines in Python

https://github.com/coreylynch/pyFM

polylearn: A library for factorization machines and polynomial networks

mainly for classification and regression in Python.
https://contrib.scikit-learn.org/polylearn/index.html

Maximum number of prime factors a number can have with exactly x factors

https://www.geeksforgeeks.org/maximum-number-of-prime-factors-a-number-can-have-with-exactly-x-factors/