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Martin Rosana

Martin Rosana

5.01 reviews

Freelance Data Labeler for AI related projects with 5+ years of experience

Argentina flagCiudad autonoma de Buenos Aires, Argentina
$5.00/hrExpertAppenLabelboxLionbridge

Key Skills

Software

AppenAppen
LabelboxLabelbox
LionbridgeLionbridge
TelusTelus

Top Subject Matter

Search Query Evaluation for online shopping portals
Social Media sentiment annotation
Missinformation Detection for Health Industry

Top Data Types

ImageImage
TextText
VideoVideo

Top Task Types

Bounding Box
Classification
Emotion Recognition
Evaluation Rating
Object Detection

Freelancer Overview

For the past 5+ years I have been involve d in several data labeling projects performing tasks such as image annotation, sentiment annotation, image rendering, search engine evaluation, search query evaluation, mistery shopping, audio transcription, video annotation, etc.

Expert5.0EnglishSpanish

Reviews (1)

Apr 2025

Labeling Experience

Telus

Social Media Posts Annotator

TelusImageEvaluation Rating
In this project, I have reviewed different social media posts and assigned to each post a topic category according to its content (e.g. Fashion & Style, Fitness & Workouts, Food & Drinks, Science & Tech, Politics etc.)

In this project, I have reviewed different social media posts and assigned to each post a topic category according to its content (e.g. Fashion & Style, Fitness & Workouts, Food & Drinks, Science & Tech, Politics etc.)

2021 - 2022
Telus

Sentiment Annotator

TelusDocumentPoint Key PointEvaluation Rating
In this role, I have read texts and identify “aspects” (i.e.: attributes of products or services) and determined the sentiments expressed towards them: positive, negative, mixed, neutral or unclear sentiment. In addition, also determine the sentiment expressed by the reviewer in each sentence and in the text as a whole.

In this role, I have read texts and identify “aspects” (i.e.: attributes of products or services) and determined the sentiments expressed towards them: positive, negative, mixed, neutral or unclear sentiment. In addition, also determine the sentiment expressed by the reviewer in each sentence and in the text as a whole.

2021 - 2022
Appen

Audio Transcription

AppenDocumentText Generation
In this project I have transcribed key phrases and labeled according sentiment, gender, age, different audio web searches.

In this project I have transcribed key phrases and labeled according sentiment, gender, age, different audio web searches.

2019 - 2020
Telus

Product Image Annotator

TelusImagePoint Key PointSegmentation
Compare pictures of two products and determine how similar the products are based on the project guidelines. Review image category for the product that is depicted.

Compare pictures of two products and determine how similar the products are based on the project guidelines. Review image category for the product that is depicted.

2019 - 2020

Education

U

University of Buenos Aires

Proffesor's degree, Philosophy

Proffesor's degree
2012 - 2022

Work History

No Work History added yet

Martin R. hasn’t added any Work History to their OpenTrain profile yet.