Vladislav Melnichenko
Private message 
Offer work 
Kyiv,
Ukraine
available for hire
Rating
Language Proficiency Level
Українська: fluent
Русский: advanced
English: upper-intermediate
CV
1. What I can do
I specialize in statistical analysis using the following tools: R language, PowerBI, Microsoft SQL, SPSS, and Excel.
2. What I know
My knowledge base includes all aspects of statistics and probability theory, ranging from fundamental concepts to the application of machine learning methods for creating statistical models.
3. Tasks I can solve
I can handle a wide range of tasks, from simple data visualization in PowerBI to comprehensive data analysis, including building forecasting models and testing hypotheses.
4. My experience
Before Freelancehunt, I worked on a Ukrainian freelance platform on Telegram, completing around 350 orders with 300 reviews. If desired, I can provide all these reviews.
5. Key phrases of your tasks that I can easily solve
Time series analysis.
Time series forecasting.
Clustering (creating classes based on variable similarity).
Classification (building models for predicting categorical variables).
Correlation and regression analysis (finding relationships and testing their significance, followed by regression modeling).
Building dashboards in PowerBI. And so on...
Additionally, if you have data that you're unsure how to handle but would like to discover interesting trends and patterns, you can turn to me.
6. Languages of communication
Ukrainian (native). Russian (fluent). English (advanced).
Skills
Programming
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AI & Machine Learning
from 17 USD per project
Services
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Data Processing
from 19 USD per project
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Information Gathering
from 19 USD per project
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Tuition
from 5 USD per hour
Portfolio
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32 USD Mobile App for Revenue Analysis Power BI
Data Processing
A mobile app for income analysis Power BI. Personal data is drawn up.
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29 USD The Sales Report (Excel)
Data Processing
Simple sales report in Excel
#Excell #Excel #Dashboard #DashBoards #Sales
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36 USD Recruitment Report (Power BI)
Data Processing
Recruitment in Power BI
#PowerBI #Dashboard #DashBoards #Databases
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44 USD War in Ukraine - analysis of the attacks of the BPL and their success
Data Processing
The robot uses statistical analysis, including graphics, diagrams and hypotheses, which allow to get conclusions about the effectiveness of the BPLA from November 2022.The main stages of the study included:
The collection and preparation of data on the launch of the BPL and their results;
Determination of key parameters for analysis, such as the number of launch, the number of BPLs and their ratio;
Examination of statistical analysis, including comparisons of different BPLs and an assessment of their effectiveness in the Zbit.Visualization of results in the form of graphs, diagrams and statistical indicators.The work was performed in the programming language R. Also two hypotheses were protested,
… The first:
According to www.ukrinform.ua, in the second half of November, Ukraine successfully began to hit the BPL.The result showed a statistical non-significant difference in the success of the BPL between the first and second half of November 2022;
The Other:
Ukraine successfully beat Orlan-10 down Shahed-136/131
The result showed a statistically significant difference in the success of the Orlan-10 and Shahed-136/131.In general, the robot includes a complete analysis of the success of the BPL in Ukraine, I attach the execution code to get acquainted with my habits.#business analyst #analytics #visualization #statistics #Rstudio
Reviews and compliments on completed projects 5
12 April
36 USD
Development of a data analysis model using cluster analysis methods
I really liked the work, Vladislav did everything clearly, reacted adequately to edits. Satisfied with the performance and speed!
3 December 2023
73 USD
Imperial Studies in Psychology
I am very grateful to Vladislav for the full amount of work done in accordance with the TZ, for the literacy and carefulness, the observation of deadlines and the tolerant kindness in the process of communication. Thro
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7 November 2023
15 USD
Relationships with the Economics
Great work done professionally.
11 October 2023
24 USD
Create a map in the language R or Python. (willed by R)
Vladislav is a great and open developer. He performed all the tasks quickly, and he was also adjusted properly. I recommend it.
10 July 2023
22 USD
Analysis of trends in COVID-19 using statistical methods
The work was done quickly and efficiently. Vladislav was open to all notices and questions. The result is fully in line with expectations, I recommend.
Activity
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Calculate statistics for the scientific work
41 USD
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Need to set up analytics based on Google Sheets data
12 USD
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SQL part2
12 USD
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Data visualization in Excel and Power BI
12 USD
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Predictive analytics
12 USD
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SQL Queries
12 USD
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Mathematical statistical analysis of the research
24 USD
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Systematize data manually in an Excel file (5000 rows)
17 USD
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Data analytics for business
24 USD
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Conduct analysis, describe and visualize data for scientific research.
36 USD
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