Identify pattern within a dataset

Status: Closed
Prize: €275
Entries Received: 16
Winner: salepi53

Winner

Contest Brief

We have a csv dataset with ~50.000 samples of two analog sampled quantities 'buried' in heavy 'noise'. We are looking for innovative approaches to cancel out the noise/recover 'information'
(samples are 2.5ms apart - an 'event' which is several seconds long happens 4-5 times during sampling. We need to identify WHERE within the dataset, this 'event' happens)

Data available on Dataset_03.zip

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Employer Feedback

“Spiros was able to provide a PROOF that the patter we were looking for was simply not there and that critical 'pattern edge' detection info needed was lost in noise. Thank you Spiros!”

Opticon, Greece.

Top entries from this contest

salepi53 Greece

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dipkmr India

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coolmaner Ireland

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Kira Poland

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arthuralbert Brazil

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CH1979 Ukraine

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souravhalder016 Bangladesh

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sagor01716 Bangladesh

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wahidjuliyanto Indonesia

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sharifbd01 Bangladesh

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fahadtan84 Pakistan

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asik01716 Bangladesh

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vzzdvd Italy

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coolmaner Ireland

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wahidjuliyanto Indonesia

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coolmaner Ireland

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Public Clarification Board

Contest Holder
- 6 years ago
On the 'noisy' data set, you can safely assume, no 'events' during the first 10seconds and the last 10seconds of the data (each row is 2.5ms)
- 6 years ago
1. fahadtan84
  - 6 years ago
  Have you seen my entry? If there is any query please feel free to query.
  - 6 years ago
fareed499
- 6 years ago
I have further processed the data to show that events are consistent.
- 6 years ago
wdworks
- 6 years ago
Actually i've got the notification that you've commented my entry, but i can't see any comment. Main thing i'm interested is the noise free similar signal image you referred to. So i can check which how effective current filtering is
- 6 years ago
Contest Holder
- 6 years ago
It appears that I can only chat with freelancers who have already filed an entry. If interested please file 'something' so I can send you the additional data
- 6 years ago
Contest Holder
- 6 years ago
it appears that I cannot upload an image here so I will send it to each one of you. It is a noise-free version of the data SIMILAR (not the same) to the one you got, clearly showing four 'events'. This will help getting a better picture on the 'events' size and relative location
- 6 years ago
Contest Holder
- 6 years ago
Answering to some questions: There are no 'duplicate' entries. It just happens that the same value is sampled. Please ignore the last entry (row) missing the second value, it is a side-effect of saving the file. Measurements come from sampling analog values, the ADC is alternating between the two channels sampling column 1 and 2, so yes, in a way, sampling is sequencial
- 6 years ago
Contest Holder
- 6 years ago
Hello and thank you for bidding on this project.
- 6 years ago
designdeals
- 6 years ago
Need More Details.
- 6 years ago
wdworks
- 6 years ago
What's up with the last entry with no y value at the end of csv? Is it like sampling was stopped before the y sample was taken. So sampling is sequential and not parallel?
- 6 years ago
nomimashi
- 6 years ago
please suggest more details so that i can work on that, what should i supposed to do with this data and there are many duplicates entry also
- 6 years ago
testevpsa
- 6 years ago
* What the data represents?
* How the event interacts with the data? (Increases the value?)
* What happens after the event?
- 6 years ago
testevpsa
- 6 years ago
Please, could you give more details?

What the data represents?
- 6 years ago