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Algorithm Optimization - Reviewed

$250-750 USD

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投稿日: 10年近く前

$250-750 USD

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Algorithm Optimization - Reviewed Summary We are a small group of private individuals developing financial software. We are looking for 3 or 4 experts in algorithms, mathematics, statistics and/or data science with a high level experience in the underlying technologies. If you are not an expert or do not have significant experience please do not bid. We require multiple experts as we intend to leverage multiple solutions across a variety of methodologies/strategies. The solution We require you to design and build an algorithm (or a combination of methodologies and algorithms) that can be run in your selected technology to deliver a set of queries that will meet the objectives (detailed below). Query = Set or restrictions to be applied to a set of data to generate a subsample We expect each solution to be made up of 4-6 queries targeting different regions in the data. This project is a proof of concept firstly utilizing 3 days data (in sample) then a further 3 days data (out of sample, please see the milestones) and will be fully awarded for completion to all selected bidders. Understanding your solution is vital, when applying the resulting queries out of sample (milestone 2) they must maintain a reasonable aggregate performance. We expect to select 3 to 4 freelancers. Once this project is completed successfully we will need to work with each of you to scale up your solution to be applied to 30 days data. We may leverage cloud technology for this however this is not in scope for this project. Once this is completed we have a further 4 markets we need to repeat this for immediately. Objectives • We will provide one datasets with one target variable (“Score”), a timestamp and 24 independent variables. The dataset contains ~55 thousand observations • The goal is to generate a query (set of restrictions) on the independent variables. Each set of restrictions will return a subsample of the dataset on which we evaluate an objective function. • Your restrictions can be greater than or less than, or be combined to define a range. At most only two restriction on each variable. • Specifically, the objective function is the sum of the target of the observations in the selected subsample. Each query (set of restrictions) has to return at least 10 valid responses and the sum total must be a positive result. • In addition, any observations that come less than 60 seconds after a valid observation in this subsample will be removed. So each query has to return at least 10 responses that are 60 seconds apart from each other. • In other words, your goal in this project is cornering an estimated 6 regions of the dataset using intervals on the independent variables, and maximize the density of positive values of the target. • We have an indicative result (this will not be made available) we are looking for successful solutions to exceed. • Solutions must provide evidence of performance testing (Milestone 3). This can agreed but should be achieved by altering the restrictions by n% reflecting a degradation in performance but not zero performance • You can find the dataset in the Excel file “[login to view URL]”. • You can find example restrictions in the excel file “Example Restrictions” FURTHER INFORMATION AND TIPS ATTACHED IN "ALGORITHM OPTIMIZATION - REVIEWED"
プロジェクト ID: 6003489

プロジェクトについて

18個の提案
リモートプロジェクト
アクティブ 10年前

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この仕事に18人のフリーランサーが、平均$612 USDで入札しています
ユーザーアバター
Hello! Sorry for not offering results on the previous versions of your project, I was wrapping up a big project for another emplyoer. since I am free now, I would like to give your task a try. As you seem to be well versed in this and already have examples of methods that won't work, I would be much obliged if you could contact me so I can bounce a few ideas with you, jsut so you can tell me if that was attempted, so I don't waste both of our times. Thanks!
$526 USD 10日以内
5.0 (142 レビュー)
6.6
6.6
ユーザーアバター
Thanks for inviting me again. Be sure that I can do your project perfectly. If you one some prototype works today, I can provide.
$744 USD 10日以内
5.0 (47 レビュー)
5.6
5.6
ユーザーアバター
I'm bidding again. R is ok for you, I hope. I'm bidding again. R is ok for you, I hope. I'm bidding again. R is ok for you, I hope.
$400 USD 7日以内
4.8 (21 レビュー)
4.8
4.8
ユーザーアバター
Will get back with a detailed proposal. Thanks a lot. Look forward to working with you on more projects. After reading your doc, as you mentioned, it might help to plot density by positive value first. I think one possible solution would be to try some heuristic methods in optimization. It all depends on how good the data is, and whether it is possible/easy to find the relative excellent solutions. Let's do as you suggested in your original proposal, let's divide the project by 3 milestones. 1. Test on this data set and find some relative good solutions (in 2 Weeks) (40%) 2. Test on your new data set and try to improve the algorithm (1 week) (30%) 3. Give suggestions on how to scale the solution up to bigger data set (half a week to a week). (30%) Beyond this, we can think of how to work on the large scale data set for next project. Thanks, Harry
$998 USD 30日以内
5.0 (2 レビュー)
4.8
4.8
ユーザーアバター
Dear Sir/Madam, I am happy to help you on this task. You have not set excel as a skill to this project so you cant see the real sorting of experts relating to this task. Please visit my profile to see my qualifications, experience and ratings. If you are comfortable, please send me the date file. (I think attached file is corrupted) I look forward to hearing from you soon. Best regards, Priyal
$500 USD 10日以内
4.9 (12 レビュー)
4.1
4.1
ユーザーアバター
hi, sir, i' m expert in matlab. i can help u well in Matlab, Signal Processing, Video&Image Processing, Algebra, Statistics, Mathematics, Electronics, Physics, Mechanics,... i read ur task carefully. i ' m very interested in ur project. i want to work with you. i will help u surely and quickly. best regards.
$388 USD 15日以内
5.0 (17 レビュー)
3.6
3.6
ユーザーアバター
I am an expert in Matlab and Math. I have many experiences in optimization. I am an expert in dynamic/sophisticated approaches. I can do it correctly. Regards.
$600 USD 10日以内
5.0 (11 レビュー)
3.6
3.6
ユーザーアバター
HI Brother, I am Data Scientist working in Multinational Company. My work is to see the hidden pattern in the large and complex data sets and predictive analytics, Data mining,Machine Learning and also uses the statistical techniques on those datasets to see what data behaves in past. By seeing the past what will be the behavior the that data set in future. I am also working on "kaggle" competitions currently .I am also writing the column on All Analytics and my rank on All analytics in Statistician. I am also working on the Time Series analysis using ARIMA, SARIMA models and also working on econometric analsysi using Linear, Nonlinear, Logistic, Probit models, hypothesis testing and Cox regression for the survival analysis and also survey analysis etc. I am also the writer of the various research papers and one of them is relating medical data you can sight my paper at IEEEXPLORE. I am also using R, SPSS Statistics, Spss Modler, Stata, SAS, MATLAB, WEKA, Statistica and Pyhthon for Data Analysis for Machine Learning, Data Mining and Data Science. Thanks Regards, Muhammad Shoaib. Data Scientist
$611 USD 10日以内
4.9 (7 レビュー)
3.2
3.2
ユーザーアバター
Excel Matlab Python Neural Networks Machine Learning Non-linear regression Support vector machines K nearest Neighbour
$750 USD 10日以内
4.8 (2 レビュー)
3.2
3.2
ユーザーアバター
Hi,sir I am glad to find your project. I am developer with good skills. Now My ranking is top 8 in freelancer. So I think you may not worry about the project. Please check my portfolio carefully and let me know. Hope to contact. Best Regards. Thanks
$618 USD 8日以内
5.0 (1 レビュー)
1.4
1.4
ユーザーアバター
Hi, Any update on your plans about the project ? Looking forward to hear from you soon. Regards Naeem ...................................................... Hi, Were you able to go through the proposal sent? Kindly feel free to ask if you have any concerns. Looking forward to hearing from you soon. Regards Naeem ................................................... Hi, A Phd Doctor in Applied Mathematics from Georgia Tech USA is our expert. He has huge experience in signal and data processing along with interest in Matlab. We can surely do this and need to discuss and get complete details for better understanding. Kindly provide your Skype id to move further on your project. Looking forward to hearing from you soon. Regards Naeem Mukhtar PS: The price quoted is just a place holder, an actual price quote will be provided once we are clear on requirements.
$833 USD 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A proposal has not yet been provided
$555 USD 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I recently got my PhD in Computational Biology from Max Planck Institute in Köln, Germany. My area of expertise is in statistical and machine learning as well as stochastic processes and probability theory. I have a masters in Mathematical Statistics along with experience in analysing huge data sets from genome databases with hundreds of thousands of variables to electricity consumption of millions individual customers in France. Kindly look at the sample publication I uploaded in my portfolio for an idea of my level in this field. The goal of this project as I understand is to select a subset of a given dataset which maximises some scoring function which you have defined. For every independent variable you need a set of intervals partitioning it into groups (approximately 6 according to your estimate) aka clustering so as to maximise the density of the positive scores. After a preliminary literature search I found: 1) A framework for feature selection in clustering by Witten and Tibshirani which talk about sparse clustering in which they propose a way to adaptively select a subset of the variables which might effect the score. I believe this might be a promising direction to look at while solving your problem. Clearly you have a very interesting problem in hand and I can promise enthusiastic attention in trying to solve it.
$666 USD 30日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I have a PhD in Electrical Engineering. I work in LTE modem systems architecture team in San Diego, CA, USA. I have fun developing Matlab programs to manage my own portfolio, decide allocation & retirement planning etc. You don't need to accept my bid .....I want to try this just for fun. But I would appreciate if you can provide me insight into the motivation/application of this work. How such program/algo is used commercially - Who uses/buys such code - for how much ? What the overall market etc.
$250 USD 7日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Dear Sir, Are you searching for a image processing & computer vision specialist with a proven ability to develop high-performance applications and technical innovations? If so, please consider my enclosed resume. My research interests are diverse and I would like to work in a multidisciplinary area that is related to Computer Science, Mathematics or Statistics. My research falls under two themes: (a) to develop a thorough understanding of the theoretical concepts of various methods and algorithms; and (b) to effectively apply these ideas and concepts for solving various real-world scientific problems. I am personally very keen about working in several problem domains, such as, biometrics, image denoising, image analysis and pattern recognition and I would like to work on a challenging problem. I have about 5 years real life research project experiences regarding to 2D/3D image processing and computer vision. My technical expertise includes cross-platform proficiency (Windows, UNIX, Linux, Android); fluency in programming languages (e.g. C++, MATLAB, Python, Ruby); and advanced knowledge of developer applications, tools, methodologies, such as, Android application, VTK (Visualization Toolkit), EMD, etc. Please call me with prospective job opportunities. You may reach me at +8801737243655 or Skype ID: mithuncse Thank you for your time and attention. I am looking forward to hearing from you. Yours Sincerely, Mithun Kumar PK Image Processing & Computer Vision Specialist
$666 USD 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I am young, a teemager with lots of knowledge in Algorithms. I want to start working and get experience in algorithms. I will work for very low price. I don't know if I can promise I'll do the work but i can try. You have nothing to lose if you try me. I am also a competitor in Computer Science Olympiads, so I should fit this job.
$250 USD 30日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A knowledgeable and experienced Senior Modeling and Simulation Analyst with 10+ years’ experience in the development and analysis of complex physics and/or mathematical based simulated applications. Especially adept in the areas of forecasting, optimization, and operational research; all the while possessing a very strong analytical background with significant understanding of MATLAB/Simulink©.
$555 USD 10日以内
0.0 (0 レビュー)
0.0
0.0

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UNITED KINGDOMのフラグ
Birmingham, United Kingdom
4.9
26
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メンバー登録日:4月 20, 2009

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