Paulo Viegas

A system that handles incomes and outcomes from properties with one or multiple owners.

The system manages each property's income and sends a percentage of the value to a savings account. Since each property may have one or more owners, the system calculates incomes and outcomes according to each owner's percentage. Other features include automatic cash flow reports and calculating tax share and common expenses.

A fantasy game based on the Brazilian League of Legends Championship (CBLOL), where users can manage their own team by buying and selling real CBLOL players.

The game became the biggest fantasy esports in Brazil by the first half of 2022, with over 70,000 registered users and around 35,000 users playing weekly, generating almost a million monthly page views.

I was the lead developer on the project. We ideated and implemented the algorithm that assigns each player's price and scores according to their performance in the weekly championship. The algorithm is based on each player's Z-score, weights, and hype value, based on the number of users purchasing the player. Load balancing was also important, considering the number of accesses the system was getting minutes before the market closed, during which around 35,000 users would send requests to change their teams.

A platform that started as a betting tips club, which later included a bet championship and cashout calculator.

HintClub provides betting and League of Legends experts with a platform where they can share tips on which bets are likely to win. Users can study the tips, see the bets, and vote on how good or reliable they are. With the bet championship feature, each user starts with the same betting bank, which holds fake money, and places a bet. After the ranking is generated, the top users receive rewards.

The cashout calculator is the platform's most used feature. It's a real-time calculator that gives some bet data, including bet value, odd entry, and current odds. The system calculates the target value to make a new entry with the current odds, switching the bet to the other team and having the same winnable value in both teams, a win-win situation. It can also be a range value to have a proportional win value no matter which team wins.

A web and physical magazine for a Luxembourg company.

This project included the logo and physical magazine designs. We provided the company's journalists with a platform to post their articles, integrated with images and videos. The online platform is also integrated with Yumpu, enabling the company to publish the full physical magazine as a digital model.

A website about the Cbolão Championship, a beneficent tournament with some streamers and League of Legends pro players competing for a cash prize, with all the donations intended to help victims of COVID-19 in Brazil.

We developed the website and integrated it with Google Sheets to build the match table and players' information cached in the user browser, updating it periodically to speed up the process.

An online souvenir store that I developed, where streamers can sell their merchandise alone or as a group, sharing the profit, taxes, delivery, and other expenses.

The system considers that each souvenir can be from an individual or a group, meaning that the profit, taxes, commissions, and other value portions had to be shared among them, according to their different percentages if applicable. Another important feature was the access itself. If a streamer is the product owner and has a team behind him, each software—including access, profit and tax reports, product creation, buy order, shipping, and percentage information—will have either user or user group controls. The shared product needs to be accepted by each streamer in the team for it to be shared.

A website that I developed to provide information about the Wild Rift esports team, Só Agradece.

The website allows fans to follow and learn about the team's members, games, championships, and awards. Fans can also connect and communicate with the team via the website.

A website for the Cbolão Championship, a beneficent tournament where streamers and League of Legends pro players compete for a cash prize, with the third edition's donations intended to help victims of a power outage in the state of Pernambuco in Brazil.

We developed the website and made information about the game available to the public, such as players, teams, the prize pool, schedules, sponsors, and other related information.

A website for the Cbolão Championship, a beneficent tournament where streamers and League of Legends pro players compete for a cash prize.

The second edition's donations helped victims of a power outage in the state of Pernambuco in Brazil.

A recommendation system that suggests the best possible jury composition for a master's or doctoral thesis defense at the University of Coimbra's engineering and computer department.

I developed an algorithm that recommends a composition of the most suitable juries for each thesis proposal based on the thesis' text, the department professors and their respective areas of expertise, and some other predefined constraints. With JuryRS, users can also change the jury by updating and validating the constraints to ensure the system selects the best fit.

A website that disseminates information about the Social CRM Conference in Belém, Pará, Brazil, for researching and developing computational intelligence methods for smarter knowledge discovery in integrated social CRM systems.

I developed the first, second, and third websites for the Social CRM Conference. The three projects included integration with a ticket-selling website to sell the tickets to the event and control the conference's payment, availability, and seat positions. Another functionality was a tool to generate conference attendance certificates for users who purchased through the website and those added to the system after physically buying tickets. Finally, I integrated a tool to retrieve all Twitter posts that included the event hashtag.

A program for training and developing students on serious games and software systems.

The project included the continuous development of some systems and games focused on the physiotherapy field, creating new games, updating old ones, and, at the same time, teaching new students new technologies and paradigms through hands-on projects.

A financial control system to help manage sales and client requests.

The system allowed users to control client requests, sales, and debts. It also provided users with sales reports and insights on the top products to sell based on its sales. The system includes visuals or graphics to help users sell and control their products better.

A parental support social network that I developed, aimed at promoting social inclusion by exchanging scientifically valid knowledge with families, institutions, professionals, and people with disabilities.

In this project, I made specific groups available for each disease to users. The network allowed a safe environment where the whole community could feel comfortable sharing information about themselves, their "patients," and any other academic information, study, or information that could help them overcome difficulties.

A system that provides TVN employees with decision support to help in creating service orders in their current systems.

I built and integrated the new system into the old Firebase and MySQL databases to provide more concrete and assertive information. The integration constantly and automatically imports data from all their systems to fill the database with as much relevant information as possible.

A project comprising the development and application of computational intelligence and visualization techniques on public security databases for crime levels and prediction.

I wrote the script in R to recover and categorize by the level and type of crime, preparing all the data to be used in the heatmap and future prediction algorithm.

A website that I built to share Prof. Dr. João Weyl's information and candidacy proposals for the rectorship at the Federal University of Pará (UFPa).

The project included an intranet area to update the candidate's daily schedule, so all voters could follow and be present at the events when available.

A program for training beginning students on how to develop software and more advanced students on how to teach others.

I prepared all the theoretical material, exercises, and the final project about website development, answering doubts and correcting the exercises for each semester's designated 30 students. A critical aspect of the project was the supervision of a doctor professor, who provided help and guidance and created an easier learning process.

A social network for members of UFPa's LINC and other associated laboratories to share papers, projects, and studies.

The project's main feature was creating groups based on the areas in which the laboratories operate, making all the information available and categorized. The platform included the essential function of sharing all theses, from undergraduate to doctorate, among all users.

A computer system to integrate modules and algorithms for pre-processing, analysis, and data visualization.

The system works by applying, from the oscillographic records—models based on wavelet transforms and neural networks—to verify the performance of the protection system in the face of disturbances. I developed some graphics that show the necessary information collected, including a live graphic that provides real-time data. I also created an oscillographic record report to provide information stored in the database.

A web system that automates the calculation of the transfer of public funds from the federal government to the state government of Pará, Brazil.

This project is from a paper I co-authored: "GRSUS: Management Of Health Resources, A Study From The Perspective Of GM/MS 1631/2015 Ordinance In The State Of Pará."

The main concept is that the Brazilian government table includes the annual public funds' transfer—based on the current population, the previous year's population, and the cost of the previous year's health exams, surgeries, consultations, and other health resources—and predicts the amount needed for the following year. I developed the automation of over 150 calculations previously performed manually or through Excel. The calculations are now automated by the system, which receives as input only some population information the government provides.