Закрыт

Local Minima/Maxima Detection and Trend Analysis

On a shared system various independent ad-hoc and scheduled processes, measurement data, and user projects consume system resources. The resource usage of the single producers cannot be measured, only the collective result of all operations, like the total disk space used. This leads to a noisy time series of historical measurements (x and y axis) with underlying growing, stationary, or falling patterns, which sometimes fluctuate quickly or have auto-correlative patterns.

Your task is to code an algorithm which can detect local minima and maxima as well as sudden changes like quick rising or falling, and can convert the noisy time series to a series of human readable list of trends and durations (e.g. stationary for 200 x from x1 to x2 and variance of -10 to +20 y, then rising for 40 x from x3 to x4 with a slope of 33% and variance of -15 to +25 y relative to the trend line, then falling 20 x from x5 to x6 with a slope of 20% and variance of -10 to +5 y relative to the trend line, etc.). Obviously, there are many different correct solutions to do such a classification, and any algorithm which comes close to what a qualified human would produce, is acceptable.

Local minima / maxima are defined as having no other lower / higher y in a time window +/- t on x. The length +/- t is not stationary but defined by a minimum change of <=-c% or >= +c% on y during one up or down trend with a length >=d on x. A trend is defined as having linear regression slope of <=-l% or >= +l% in the time window +/- t with an error <= e. A sudden change is defined as the beginning of a trend with a slope of <=-s% or >= +s% with an error <= r. The parameters c, l, e, s, and r need to be chosen in a way which generates meaningful results on a test data set which will be provided.

Deliverable is a source code of a solution which is free of rights from third parties except for suitable open source licenses, capable to run on a Windows 10 operating system. Programming languages to choose from for the implementation are Python, R, and C# / .NET (wrapping C++ if needed). The solution has to work for up to 500 thousand measurements (x axis) using a maximum of 11GB RAM and 16 cores on a 3.4GHZ CPU or 3584 CUDA cores on a 1.5GHz GPU and delivering the results within less than a day. Success criterion is the output on a validation data set (unknown to you), which has to come close to what a qualified human would manually produce looking at the plot of the time series.

Квалификация: Алгоритмы, Программирование на C#, Python, Язык программирования R, Статистический анализ

Показать больше python trend analysis, data trend analysis python, perform statistical trend analysis, peak finding noisy data, peak detection matlab code, peak detection in r, peak detection algorithm, findpeaks matlab source code, peak detection algorithm c code, peak detection time series python, peak analysis in r, r programming language, linear programming, trend analysis matlab, statistical trend analysis, matlab trend analysis, trend analysis excel, expense trend analysis, expense trend analysis excel, excel expense trend analysis

О работодателе:
( 0 отзыв(-а, -ов) ) Switzerland

ID проекта: #17417791

10 фрилансеров(-а) в среднем готовы выполнить эту работу за $1369

shadabkhan92

https://www.freelancer.com/projects/javascript/Webdevelopment-Project-for-Shadab/ https://www.freelancer.com/projects/python/STL-STEP-Splitting/ done the similar projects will use python for that. Relevant Skills Больше

$1529 USD за 20 дней(-я)
(25 отзывов(-а))
6.3
MohammadTaradeh

My name is Moahmmad Taradeh and I am a Microsoft Certified Professional Developer (MCPD). Relevant Skills and Experience Much of my experience comes from working for Intel Corporation. I was there software engineer a Больше

$2352 USD за 20 дней(-я)
(22 отзывов(-а))
6.0
dinhfreedom

Dear sir. Your project attracted my attention at first glance, because I've really rich experience in Statistical Analysis Programming. I'm really confident about your project, and very eager to join your project. I Больше

$1500 USD за 20 дней(-я)
(44 отзывов(-а))
5.9
mohamedrdait

Hello I am an engineer in operational research and decision support I master R programming ,Optimization linear programming, nonlinear programming , I can code gradient method, newton raphson , newton ,gradient wi Больше

$1694 USD за 20 дней(-я)
(41 отзывов(-а))
5.3
kujin2018

hi i am machine learning expert i have good experiences let us discuss i can do this job perfectly thank you

$1250 USD за 20 дней(-я)
(2 отзывов(-а))
4.0
chumkibhowmick

I am a full-time freelancer looking for a long term business alliance. I have a 5 star rated profile in [login to view URL] too.  [login to view URL]~0167b98b2888b11ab6 If you are looking for top notch work then Больше

$1111 USD за 21 дней(-я)
(4 отзывов(-а))
3.9
general985

Hello sir. I'm excited about your project, because I've really rich experience in Trend Analysis Programming. I've developed many projects similar to yours and excellent skills. If you award me, I'll provide wonderf Больше

$1000 USD за 20 дней(-я)
(13 отзывов(-а))
3.0
stivborg

I believe, both segmentation and extrema identification can be done. I see two possible issues here - when the noise level is too big or when real time identification is required.

$750 USD за 20 дней(-я)
(2 отзывов(-а))
3.0
$1250 USD за 20 дней(-я)
(2 отзывов(-а))
0.6
shan47

We are a group of enthusiastic Data Scientists and Machine Learning Engineers with deep business skills. We also implemented similar project of early trend detection from a time series data.

$1250 USD за 20 дней(-я)
(0 отзывов(-а))
0.0