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Physical Activity Algorithm / Data Science

$30-250 USD

Terminado
Publicado hace más de 2 años

$30-250 USD

Pagado a la entrega
I am doing a research project on the accuracy of physically activity trackers on iPhone. The purpose is develop an algorithm that can determine that a recorded physical step (steps people take when moving around) are valid steps - meaning they were actually walked by the user and not a dog or put on a machine of some kind that vibrates the phone and tricks it into recording a step. Givens: We know the users: Age, Height, Weight and Sex. We know the reported number of steps the device has recorded for a given time range (A step record). Data We Have Access To: Core Motion sensor data which includes, raw accelerometer, gyroscope , pedometer etc. (A complete list can be found here: [login to view URL]). We can access this data for the same time range as mentioned above. We DO NOT have access to any GPS or location data. Job: Develop an algorithm that can reasonably determine if any given step record consists of valid steps using the fixed data pints we know (age, height, weight and sex and number of reported steps) and analyzing it against the sensor data we have access to. Bonus if this can be turned into C# code or method so it can be implemented in a mobile app.
ID del proyecto: 31930074

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Proyecto remoto
Activo hace 3 años

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Your project looks very interesting. The approach that we aim to take in this project is as follows. 1. We will process the raw sensor data (mainly accelerometer) by using a combination of low-pass filtering and spectral analysis to determine the time intervals between subsequent peaks. 2. Based on user information (height, weight, etc.), we will use some published empirical techniques to determine the expected step size. We will then convert this expected step size into expected time interval between accelerometer pulses. 3. By comparing the expected time interval with the measured time interval, we can tell if a given step is real or not. Obviously, this is a crude overview. The algorithm will be refined further as we work on the project. If you are happy with the general approach then please give us a shout. We have substantial experience in mathematical modelling, statistical analysis, data processing and numerical programming. So, we are confident to deliver your project in time and within budget. We will also be happy to convert the algorithm into a C# code for deployment on mobile devices. Question: Do you have any measured data from any device that we can use for testing the algorithm? Best wishes, Team AlgoHut
$250 USD en 14 días
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7 freelancers están ofertando un promedio de $400 USD por este trabajo
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Hi there, I have read your project description and i'm confident i can do this project for you perfectly.I still have a few questions. please leave a message on my chat so we can discuss the budget and deadline of the project. Thanks. .. .
$250 USD en 5 días
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Hello, I hope this finds you well. I have just seen your project requiring; iPhone C# Programming Data Science Genetic Algorithms I believe that my 10-year experience in this field is what you need right away. Avoid the headache of looking further. Let's save time and focus on the real task. My proposed timelines and budget are just placeholder and an open for negotiation to increase or decrease as per the full requirements at hand. Allow me to prove how better my review can be. Smile all the way! Click the message button, so initiate the conversation. Regards, Fridah
$200 USD en 7 días
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We will do your work I am writing this proposal in order to work for you in Software and Web Development. We are highly trained professional developers seeking to freelance and earn online. Having a flair in programming and development I have been excellent with JAVA,C#,C/C++ and PHP programming language along with MySQL with XAMPP Server. I also build application for Cloud computing and High performance computing as I also have knowledge regarding Hadoop, MPI, OpenMP (distributed frameworks) and also have build applications in CUDA C++ and OpenCL. I also have experience with the most famous framework ASP.NET. My most expertise are in JAVA where I have built countless projects for semester projects and Final year project. You may find many developers in this field however we assure that you will not be able to find a team like us. We not only ensure the code is quality wise but we also assure that the code we write are optimised and we ensure that the program performs right operation under right environment i.e. we create programs that are defect free. You may also find freelancers that cost low but they do not put their 100% which then shows in the software and leads to an unhappy customer. We ensure reasonable price are put as tag on the job and we ensure in order to give the write product.
$200 USD en 7 días
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Bandera de UNITED STATES
Nashville, United States
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Miembro desde ago 20, 2012

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