LASIGE

LASIGE is a research unit at the Faculty of Sciences of the University of Lisbon, in the field of Computer Science and Engineering. LASIGE gathers experts from several areas of the computing field, including artificial intelligence, machine learning, concurrency, distributed computing, embedded and cyber-physical systems, human-centred computing, information systems, information retrieval, security and privacy, software validation and verification, theory of computing, with an emphasis on computational complexity, and applied computing to life and medical sciences. LASIGE’s activities are organised around seven lines of excellence supported by key quality indicators.

Cyber‐Physical Systems

The LASIGE research line Cyber-Physical Systems (CPS) investigates the functional, human, trustworthiness and timing aspects of cyber-physical systems. This research line focuses on system solutions for offline verification and online monitoring of security- and safety-critical embedded real-time systems, mechanisms for efficient and adaptive interactions among entities in specific scenarios, protocols for autonomous driving scenarios, and visual analytics techniques and tools for exploring heterogeneous datasets from cyber-physical and smart systems, making them more transparent to end-users.

Data and Systems Intelligence

The research line on Data and Systems Intelligence (DSI) strives to devise innovative solutions for large‐scale data problems and complex systems. DSI intersects areas of recent high visibility and impact, such as machine learning and data mining, but also the general fields of artificial intelligence. This highly multidisciplinary research line aims at advancing research and knowledge in the recent flagship application and research domain of data science, web science, and network science.

Dependable and Secure Decentralized Systems

Dependable and Secure Decentralized Systems (DS2) investigates models, protocols and architectures that are suitable for applications with strong dependability requirements, namely applications that need to remain operational despite accidental faults or malicious attacks. The solutions being developed cover a diverse set of objectives, enforcing the prevention, detection and tolerance of failures. The kind of environments that are being contemplated include cloud deployments, highly dynamic and geographically distributed networks, mobile distributed computing, web systems and applications, smart grids and other critical infrastructures.

Health and Biomedical Informatics

LASIGE presents a longstanding record of research contributions in the area of Health & Biomedical Informatics (HBI), by providing innovative solutions for processing biological and medical data, and for supporting the discovery of new biomedical insights. This research line aims to encompass all the scientific work in LASIGE where informatics plays a fundamental role in creating new knowledge in life and health sciences.

Inclusive Human-Computer Interaction

LASIGE presents a longstanding record of research contributions in the area of accessible computing, in assessing, designing, and developing technologies for people with different abilities. The Inclusive Human-Computer Interaction (IHCI) research line gathers all the contributions that seek to evaluate or design interfaces for people with disabilities, older adults, or people suffering from situational impairments.

Reliable Software Systems

Reliable Software Systems (RSS) focuses on modelling techniques and formal analysis approaches to software system structure and behaviour. It aims at enhancing the software engineering practice and particularly the quality of the software.
Its activity ranges from developing theoretical models, languages and techniques to the development of tools that can be used in the real-world software development process, with a clear impact on the workflow of developers and the industry in general. RSS centers its attention on the verification and validation of software, increasing the confidence of developers in their code, especially in complex and error-prone scenarios, such as concurrent and distributed programs.

Theory of Computing

Theory of Computing (ToC) is dedicated to the foundational, theoretical study of computation: What is a computer? What is computation and where does it manifest? What are the capabilities and limitations of different kinds of computers? The method we use to study this question is the mathematical method: we use precise mathematical definitions to model various systems where computation (or a computation-like phenomenon) occurs, and then we use rigorous, deductive reasoning (i.e., mathematical proofs) to understand the behavior and properties of such systems.

RECENT

NEWS

Sara Silva research published in IEEE Transactions on Evolutionary Computation

20/10/2025

LASIGE integrated researcher Sara Silva, together with researchers from NOVA IMS, Ines Magessi and Leonardo Vanneschi, developed two new Genetic Programming selection methods that prevent overfitting by minimising both the training error and the functional complexity of the evolved models in a pseudo-multiobjective fashion. Both methods rely on an improved version of the Slope-Based Complexity […]

ArchiveChain project featured in Tek Notícias

17/10/2025

Bernardo Ferreira, an integrated researcher at LASIGE and a member of the ArchiveChain team, explained to TEK Notícias how the project originated and how the blockchain operates. The blockchain uses pages from Arquivo.pt as a kind of “fuel”, which ultimately contributes to the preservation of the history of the Portuguese web. ArchiveChain aims to establish a […]

LASIGE Welcome Day 2025

15/10/2025

LASIGE had its Welcome Day annual event today, October 15, 2025. The event was organized by LASIGE’s PhD Student commission and aimed at being a warming and informative welcome reception to our new members. The event began with a few words of welcome from the LASIGE Executive Committee, Alysson Bessani, Tiago Guerreiro, and Cátia Pesquita, […]

RECENT

TALKS

LASIGE TALKS: Save the Date

29/10/2025

CPS and DS2 meetup: Niku Nuuti

24/10/2025

LASIGE Welcome Day 2025

15/10/2025

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ONGOING

PROJECTS

HfPT

Health from Portugal

SMaRtChain

Fast and Energy-efficient Distributed Consensus for Blockchains

VAPrevention

Randomised controlled trial and economic evaluation of a person-centred digital intervention to prevent diabetes in high-risk adults

APOSTLE

new Approaches for Secure Distributed Data Processing and Access

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Projects

PUBLICATIONS

Members

RECENT

PUBLICATIONS

Nuno M. Rodrigues, Vanessa F. Fonseca, Renato Mamede, Susanne E. Tanner, Bernardo Duarte, Sara Silva. Integrating elemental and total reflection X-ray spectral fingerprints with machine learning for advanced seafood traceability. Food Control, Elsevier BV, 2026 [Biblios]

Nuno Fachada, João P. Matos-Carvalho, Carlos M. Fernandes. A catch-all discrete distribution: Short description and main properties. Examples and Counterexamples, 8, Elsevier BV, 2025 [Biblios]

Paulo Canelas, Bradley Schmerl, Alcides Fonseca, Christopher S. Timperley. ROSpec: A Domain-Specific Language for ROS-Based Robot Software. Proceedings of the ACM on Programming Languages, 9(OOPSLA2):3313-3341, Association for Computing Machinery (ACM), 2025 [Biblios]

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SOFTWARE &

TOOLS

SF4K

A web application to promote healthy eating in children from 2 to 6 years. It has the goal to study the...

OpenRQ

OpenRQ is a Java library that implements the RaptorQ FEC scheme described in RFC 6330. The aim is to provide to...

RoseTrajVis

RoseTrajVis is a system for analyzing trajectories using graphics inspired in wind roses. The elements of the rose include petals that...

DOL

DOL is a Dependent Object-oriented Language featuring dependent types, mutable objects and class-based inheritance with subtyping. The DOL compiler is responsible...

ParTypes

ParTypes is a toolchain for validating and synthesising message-based programs for Message Passing Interface (MPI) programs. The general aim is to...

Tsallis Entropy calculator

The Tsallis Entropy calculator is a tool developed to compute and compare several versions of conditional Tsallis entropies existing in the...

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About LASIGE

LASIGE is a research and development unit at the Faculty of Sciences of the University of Lisbon, in the field of Computer Science and Engineering.

LASIGE has approximately 250 collaborators, including researchers holding a doctoral degree, PhD and MSc students and other junior researchers, project managers, and a team of system administrators. The current Director is Prof. Alysson Bessani.