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Barua pepe imethibitishwa kwa ufanisi.
Picha ya Mtumiaji
$50 USD / saa
Bedera ya UNITED STATES
arvada, united states
$50 USD / saa
Ni saa 9:12 PM hapa
Alijiunga Januari 22, 2021
2 Mapendekezo

Mihaiela V.

@mihageo

verified.svg
rising-star.svg 5.0 (4 hakiki)
3.4
3.4
100%
100%
$50 USD / saa
Bedera ya UNITED STATES
arvada, united states
$50 USD / saa
100%
Kazi Zilizokamilika
100%
Kwa Bajeti
100%
Kwa wakati
33%
Kiwango cha Kuajiriwa Tena

Sr. Data Analyst | Data Scientist

Highly analytical, process-oriented, flexible, and fast learner professional, with in-depth knowledge of visualization, database types, and big data manipulation. My experience includes skills such as: - Data entry - Data processing - Excel - ETL - Data quality - Data analysis - Data science - SQL - Python - Tableau - very organized and many more. My goal is to provide: - Quality service in a timely manner - Commitment and professionalism - Support for the customer - Clear communication throughout the project. I have a Bachelor’s degree in Business Systems and completed a MS in Analytics with Georgia Tech.
Freelancer Data Processing Executives United States
Angalia woteData Processing Executives in United States

Wasiliana na Mihaiela V. kuhusu kazi yako

Ingia ili kujadili maelezo yoyote kwenye gumzo.

Portfolio

10093720
This image shows a comparison of a few ML models used to solve a binary classification problem. KNN has the highest precision and Naïve Bayes has the worst. For the dataset used in this project, NB tends to default predicting a label 1, rather than 0 like the other models tend to do. Looking at F1-scores for KNN and RF, for label 0 they are very high and for label 1 the scores are very low. So, these models perform well when predicting label 0, but very poorly when predicting label 1. This should be further investigated, and other approaches should be tried to see if they might help improve F1-score. Such methods include: over/under sampling, generate synthetic samples or enrich the dataset with new features from other data sources.
Classification reports - sample
10093712
This image shows test and training error rates plotted against various K neighbors when tuning a KNN model. Cross-validation was created in Python.
Sample - Error rates for KNN model
10093720
This image shows a comparison of a few ML models used to solve a binary classification problem. KNN has the highest precision and Naïve Bayes has the worst. For the dataset used in this project, NB tends to default predicting a label 1, rather than 0 like the other models tend to do. Looking at F1-scores for KNN and RF, for label 0 they are very high and for label 1 the scores are very low. So, these models perform well when predicting label 0, but very poorly when predicting label 1. This should be further investigated, and other approaches should be tried to see if they might help improve F1-score. Such methods include: over/under sampling, generate synthetic samples or enrich the dataset with new features from other data sources.
Classification reports - sample
10093712
This image shows test and training error rates plotted against various K neighbors when tuning a KNN model. Cross-validation was created in Python.
Sample - Error rates for KNN model

Kaguzi

Mabadiliko yamehifadhiwa
Inaonyesha 1 - 4 kutoka kwa 4 - hakiki
 Chuja hakiki kulingana na:
5.0
$100.00 USD
Excel Project
Miha is fantastic, very bright and easy to work with. I have worked with Miha on two projects. I highly recommend her.
Data Processing
Data Entry
Excel
Microsoft Office
+1 zaidi
P
Bedera ya John W.
@PTSLLC
•
1 year ago
5.0
$400.00 USD
Project for Mihaiela V.
Miha is great!
Data Processing
Data Entry
Excel
Microsoft Office
+1 zaidi
P
Bedera ya John W.
@PTSLLC
•
1 year ago
5.0
$20.00 USD
Excel expert needed ASAP
Friendly and quick! This freelancer helped me out a lot.
Visual Basic
Data Processing
Data Entry
Excel
Microsoft Office
M
Bedera ya Jemma G.
@MareePalvin
•
2 years ago
5.0
$1.00 USD
Project 32658303 has been deleted
Always provides quality work. Very detailed and professional. Thank you very much! Highly Recommended!
M
Closed User
@michaelprendol
•
2 years ago

Uzoefu

Lead Data Analyst

Gogo Business Aviation
Apr 2020 - Sasa
Responsible for delivering actionable analytics and metrics for company's products, services, network performance, and customer operations. • Provide leadership and guidance to team of analytical professionals. • Works with management to identify analytical solutions that are aligned with business objectives. • Lead analytic projects from consultation to delivery ensuring work product matches internal client objectives.

Metrics Engineer/Sr Data Analyst

Gogo Business Aviation
Sep 2015 - Mac 2020 (4 years, 6 months)
• Create visually impactful dashboards in Tableau and Excel for various investigations and provide the findings in a meaningful and actionable way. • Work closely with management to prioritize business and information needs • Conduct critical analysis of key performance indicators to aid with continuous improvement efforts related to network quality and performance

Data Analyst

Carewise Health
Jun 2012 - Des 2016 (4 years, 6 months)
• Load and evaluate data files for Data quality assessment, using various statistical methods • Troubleshooting data issues • Identifying Data Quality requirements for the new products and defining the Data quality processes • Perform User Acceptance testing • Collaborate with various Client service & delivery organizations within Carewise Health to address data related deliverables and resolve data issues; • Develop ad-hoc and complex reports

Elimu

Master of Science, Data Analytics

Georgia Institute of Technology, United States 2020 - 2022
(2 years)

Wasiliana na Mihaiela V. kuhusu kazi yako

Ingia ili kujadili maelezo yoyote kwenye gumzo.

Udhibitisho

Wafanyakazi Huru Wanaopendelewa
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Ujuzi wa Juu

Data Processing 4
Data Entry 4
Excel 3
Microsoft Office 3
Data Analytics 3

Angalia Wafanyakazi Huru sawia:

Data Processing Executives in United States
Data Processing Executives
Data Entry Clerks
Excel Experts

Pitia Onyesho Sawia

Data Processing
Data Entry
Excel
Microsoft Office
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