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Sergiy Isakov

Reliable Plus holder
Offer Sergiy work on your next project.

Ukraine Kharkiv, Ukraine
8 hours 5 minutes back
Available for hire available for hire
10 Safes completed
3 years back
7 clients
2 proposals made
age 66 years
on the service 6 years
  • Business Analyst
  • data scie

Rating

Successful projects
100%
Average rating
No data
Rating
1363
AI & Machine Learning
23 place out of 2836
Data Processing
45 place out of 1474
9 projects
AI & Machine Learning
6 projects
Python

Skills and abilities


Architecture

Outsourcing & consulting

Portfolio


  • The artificial immune system.

    AI & Machine Learning
    The artificial immune system. — example of freelancer's portfolio work in category AI & Machine Learning
    Use of the principles and algorithms of artificial immune systems in creating a neuron network to classify objects with small training data sets. The main idea is to clone the vector of the internal layer of the NS to improve the efficiency of the classification process.
  • GAN for Images Super Resolution

    AI & Machine Learning
    GAN for Images Super Resolution — example of freelancer's portfolio work in category AI & Machine Learning
    Development of ML models based on Generative Adversarial Network (GAN),
    which enhances the content loss function with competitive loss by training GAN.
    The model enables the reconstruction of images with a large scal rate (in 4 times) and was used to reconstruct the medical images of the microscope.
  • Not to run on Pytorch for RETS

    AI & Machine Learning
    Not to run on Pytorch for RETS — example of freelancer's portfolio work in category AI & Machine Learning
    Development of a model for the price forecast of real estate on the basis of Artificial Neural Networks (ANN) in Pytorch
    The first step is the preliminary processing of the source data
    Data from the MySQL database (access to the server is provided by the customer)
    - data cleaning, emissions analysis, filling missed data, etc.
    Analysis of interconnection, interaction and correlation of data. Selection of independent parameters
    The second phase is the restoration of sales prices.
    The development of model
    Training, testing and so on.
    - "rehabilitation" of the sales price for objects for which the sales value is not indicated in the database (this objects 400)
    - verifying the accuracy of the model compared to the real price of the sale of such objects
    The third phase is the forecast of the sales price for 1-5 years:
    Classification of source data
    Formation of temporary dependencies
    - analysis of stability, trends, timelines, periodicity, abnormal areas, etc.
    Building a model for prediction
  • The Neuronal Network of Robot Movement

    AI & Machine Learning
    The Neuronal Network of Robot Movement — example of freelancer's portfolio work in category AI & Machine Learning
    Robot movement control is built on the basis of Artificial Neural Networks (ANN)
    ANN has two nodes (neuron) on the input layer, ten nodes on the hidden layer and seven nodes on the output layer.
    The nodes on the input layer correspond to the data (signal levels) of the left and right on the course of the movement of the robot sensors
    Signals from the sensors are normalized by the maximum level of the signal from the sensor in such a way that the input layer nodes are given values in the range of 0 to 1.With several sensors on each side, their indications are summarized with different weight coefficients and submitted to the input nodes as a aggregated signal.
    The connections between the entrance nodes and the nodes of the hidden layer are built on the basis of the relay function, and between the nodes of the hidden layer and the output - on the basis of the sigma function
    The result of the forecast of action is formed in seven nodes of the output layer and ultimately formed from the condition of the highest probability, which corresponds to one of the seven categories (action), which corresponds to the following:
    “Keep move – both rotate in the same direction”
    Action = 1 - 'Right brake, left rotate - turn right'
    Action = 2 - 'Right reverse, left rotate - cool right'
    Action = 3 - 'Left brake, right rotate - turn left'
    Action = 4 - 'Left reverse, right rotate - cool left'
    Action = 5 - 'Both brake - smooth braking'
    Action = 6 - 'Both reverse - emergency braking'
  • Analysis of energy distribution

    AI & Machine Learning
    Analysis of energy distribution — example of freelancer's portfolio work in category AI & Machine Learning
    preliminary data processing of sensors, model development, forecasting, visualization
  • Classification of Users

    AI & Machine Learning
    Classification of Users — example of freelancer's portfolio work in category AI & Machine Learning
    preliminary processing of user data, development of user classification model
  • Prognosis of sales

    AI & Machine Learning
    Prognosis of sales — example of freelancer's portfolio work in category AI & Machine Learning
    Prognosis of sales on the basis of timelines

Reviews and compliments on completed projects 10

  • Real expert
  • Craft master
  • Quick answers
  • First-class quality
  • Nice communication
  • High responsibility
  • Great price
  • Lightning fast

25 April 2023 412 USD
Improvement of the previous ML project

Quality
Professionalism
Cost
Contactability
Deadlines

Sergey launched on a server created in the previous ML project.
Qualified I went to all stages, everything was done professionally, thank you for cooperation.
I recommend it!

29 March 2023 826 USD
Machine Learning для підбору рівнів в грі вікторині

Quality
Professionalism
Cost
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Deadlines

Sergey was very responsible for the task. Before creating the model, he familiarized with the product in which it will be used and proposed the solution that will best fit in this task. Communication was without problems.

I recommend cooperation!

3 February 2023 180 USD
Prediction and validation of the value of the goods through ML.

Quality
Professionalism
Cost
Contactability
Deadlines

Все отлично, работа выполнена быстро и качественно!

Quality
Professionalism
Cost
Contactability
Deadlines

The commissioner showed a high level of competence and performed the work earlier than the deadline. I recommend !

3 May 2022 226 USD
Проверка алгоритма

Quality
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Deadlines

Sergey demonstrated excellent work in time, a professional approach with the addition of creative ideas that in the essence of the topic.

22 April 2021 250 USD
Обработка данных при помощи LSTM

Quality
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Спасибо за качественно и в срок выполненную работу! Исполнитель продемонстрировал готовность работать в новой области и продемонстрировал высокий профессионализм.

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Both communication and work - everything is fast, careful and in essence, quality. I am satisfied. Thank you !

22 June 2020 81 USD
Разработка CNN модели (на Python) для распознoвания тональности текста

Quality
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рекомендую, было приятно работать!

18 March 2020 131 USD
CNN + AIS

Quality
Professionalism
Cost
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Была проведена хорошая работа. Фрилансер проявил себя ответственно и даже творчески (там где это было нужно). Работой доволен. Буду рад будущему сотрудничеству.

24 January 2020 27 USD
Pytorch for RETS deep learning

Quality
Professionalism
Cost
Contactability
Deadlines

Thank you for the successfully completed project!

Activity

  Latest proposals 10
Freelance project
226 USD
Freelance project
Freelance project
564 USD
Freelance project
Stabilize Image Processing Pipeline (DL + CV) for Tomography / Ophthalmic Imaging Personal project
3000 USD
Connecting AI to the database Personal project
AI - select and configure the RVC model Personal project
226 USD
Voice request to search for real estate listings in the database Personal project
Laboratory of Machine Learning Personal project
21 USD
Machine learning lab Personal project
21 USD