R&D lab in computer and software engineering

The CCISEL (ISEL Centro de Cálculo) was founded as an autonomous organization in 1975, and was responsible for promoting ISEL in the study of digital systems, microprocessors and computer science and engineering. Our activities are carried out in three core areas:
  • Expertise advisory, research and development
  • Technological training courses
  • Pedagogical activity
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Concurrent Programming

Entrevista do Paulo Pereira ao Sapo

Recentemente, o portal SAPO publicou uma entrevista com o Paulo Pereira, membro do CCISEL, onde foram partilhadas as suas atividades e experiências sobre o ensino através de plataformas digitais, nomeadamente o Twitch...
Paulo Pereira
Software Engineer
java

Enhancing SSR in Low-Thread Web Servers

Naive server-side rendering (SSR) techniques require a dedicated server thread per HTTP request, thereby limiting the number of concurrent requests to the available server threads. Furthermore, this approach proves impractical for modern...
Miguel Gamboa
Software Developer
Kotlin

Kotlin scope functions

Kotlin scope functions allow the execution of code blocks in a richer scope, typically with the end goal of making code simpler to write and read. There are five different scope functions:...
Pedro Félix
Software Developer
Programming

Deconstructing yield Operator to Enhance Streams Processing

The yield keyword is a well-known feature in most programming languages to pause and resume generator functions. Yet, what is the performance overhead of interleaving a yield-based operation in streams processing? In...
Diogo Poeira
Software Engineer
Programming

Bit aites - 01

Troca de bitaites entre dois professores do ISEL e dois dos seus ex-alunos. Nesta conversa, recheada de divagações e de descontração, foram abordados diversos temas relacionados com a área de engenharia de...
Paulo Pereira
Software Engineer