David Manuel de Sousa Rodrigues

Escola Superior de Artes e Design das Caldas da Rainha

The Alvalade neighbourhood in Lisbon, Portugal, was built in the mid-XX century as low-cost housing for workers, but it has become inhabited by the middle and upper classes. The neighbourhood is home to a large population of young people, including children and teenagers who attend the schools located in the area. We present an agent-based model wh...

This ACM Ubiquity Symposium presented some of the current thinking about big data developments across four topical dimensions: social, technological, application, and educational. While 10 articles can hardly touch the expanse of the field, we have sought to cover the most important issues and provide useful insights for the curious reader. More th...

We use the term "big data" with the understanding that the real game changer is the connection and digitization of everything. Every portfolio is affected: finance, transport, housing, food, environment, industry, health, welfare, defense, education, science, and more. The authors in this symposium will focus on a few of these areas to exemplify th...

Generative design methods are able to produce a large number of potential solutions of architectural floor plans, which may be overwhelming for the decision-maker to cope with. Therefore, it is important to develop tools which organise the generated data in a meaningful manner. In this study, a comparative anal- ysis of four architectural shape rep...

The different options for the reconstruction of the city of Lisbon in the aftermath of the 1755 earthquake are studied with an agent-based model based on randomwalks. This method gives a comparative quantitative measure of mobility of the circulation spaces within the city. The plans proposed for the city of Lisbon signified a departure from the me...

S1 File provides more details on the applied algorithm and on the pairwise comparisons of the DAGs. (PDF)

The tagging of on-line content with informative keywords is a widespread phenomenon from scientific article repositories through blogs to on-line news portals. In most of the cases, the tags on a given item are free words chosen by the authors independently. Therefore, relations among keywords in a collection of news items is unknown. However, in m...

This study explores the design and control of the behaviour of agents and robots using simple circuits of spiking neurons and Spike Timing Dependent Plasticity (STDP) as a mechanism of associative and unsupervised learning. Based on a " reward and punishment " classical conditioning, it is demonstrated that these robots learnt to identify and avoid...

Background: Hypernetworks are based on topological simplicial complexes and generalize the concept of two‐ body relation to many‐body relation. Furthermore, Hypernetworks provide a significant generalization of network theory, enabling the integration of relational structure, logic and analytic dynamics. A pulmonary embolism is a block‐ age of the...

This paper identifies the main criteria used by architecture specialists in the task of clustering alternative floor plan designs. It shows how collective actions of respondents lead to their clustering by carrying out an online exercise. The designs were randomly pre-generated by a hybrid evolutionary algorithm and a questionnaire was posed in the...

—A model of an Ant System where ants are controlled by a spiking neural circuit and a second order pheromone mechanism in a foraging task is presented. A neural circuit is trained for individual ants and subsequently the ants are exposed to a virtual environment where a swarm of ants performed a resource foraging task. The model comprises an associ...

A model of an Ant System where ants are controlled by a spiking neural circuit and a second order pheromone mechanism in a foraging task is presented. A neural circuit is trained for individual ants and subsequently the ants are exposed to a virtual environment where a swarm of ants performed a resource foraging task. The model comprises an associa...

The aim of this study is to understand what are the collective actions of architecture practitioners when grouping floor plan designs. The understanding of how professionals and students solve this complex problem may help to develop specific programmes for the teaching of architecture. In addition, the findings of this study can help in the develo...

With online publication and social media taking the main role in dissemination of news, and with the decline of traditional printed media, it has become necessary to devise ways to automatically extract meaningful information from the plethora of sources available and to make that information readily available to interested parties. In this paper w...

This work introduces an integrative approach based on Q-analysis with machine learning. The new approach, called Neural Hypernetwork, has been applied to a case study of pulmonary embolism diagnosis. The objective of the application of neural hyper-network to pulmonary embolism (PE) is to improve diagnose for reducing the number of CT-angiography n...

The past decade has seen the rapid development of the online newsroom. News published online are the main outlet of news surpassing traditional printed newspapers. This poses challenges to the production and to the consumption of those news. With those many sources of information available it is important to find ways to cluster and organise the do...

With online publication and social media taking the main role in dissemination of news, and with the decline of traditional printed media, it has become necessary to devise ways to automatically extract meaningful information from the plethora of sources available and to make that information readily available to interested parties. In this paper w...

An artificial Ant Colony System (ACS) algorithm to solve general-purpose combinatorial Optimization Problems (COP) that extends previous AC models [21] by the inclusion of a negative pheromone, is here described. Several Travelling Salesman Problem (TSP) were used as benchmark. We show that by using two different sets of pheromones, a second-order...

The present study, based on a comparative analysis of several plans for Lisbon’s Baixa district, with an emphasis on that area’s public space, contributes to an understanding of the urban design process and presents a fresh perspective on dealing with historical data by conducting a posteriori analysis using mathematical tools to uncover relations...

Up to the mid XXth century the city of Lisbon grew obeying to traditional urban drawing principles. It grew through the fundamentals of the Projected/Planned city, but in both cases it was the public space that defined the structure of the urban lattice. At that time the grandiosity and symbolism of public spaces created attraction points that gene...

We describe in this paper De.:Sid, an Intelligent Online Survey program based on rules. We have incorporated three rule knowledge bases in a standard online survey architecture, that are used to control three vital components on a survey: (1) the dependencies between questions and answers, i.e. the structure and survey branching logic, (2) the deci...

This paper provides a general perspective concerning the study of flux of information in complex social systems. The recognition of communicative structures through pattern-matching in social systems allows the interpretation and prediction of behaviour in social networks. Applying the pattern-oriented approach suggests the possibility that through...

We present a generic formal framework for the identification and interpretation of emergent properties in environments where agents participate in distinct kinds of relations or networks. We focus here on the interplay between social and geographic relations in the behavior of our agents. The method we present provides a way to detect emergent prop...

Large, real time text classification systems are becoming a popular topic. We present a method for automatically extracting correlated news from online media using a dynamic similarity graph and use the variation of information as a measure to identify topics, lifespan and key terms. The presented method has the advantage of requiring no human inte...

This paper examines some methodological and conceptual challenges concerning the study of emergent patterns of behavior in communication networks. We discuss the notion of intentionality in collectives in the light of two case studies. The first one regards the mechanisms of communication in a community of insects. The second case study concerns th...

We propose a descriptive 2D Hybrid Cellular Automaton model that simulates the growth behavior of a tissue with cancerous cells. We combine a set of hallmarks of cancer (Hanahan and Weinber, 2000) with the effect of acidification of the cell surroundings by the production of acid by tumorous cells and model some aspects of the communication in livi...

Instituto Superior das Ciências do Trabalho e da Empresa Av. das Forças Armadas 1649-026 Lisboa, Portugal RESUMO Neste artigo descrevemos uma aplicação dos Sistemas Baseados em Regras a um programa de inquérito "online" inteligente, o De.:SID. Incorporámos no programa três bases de conhecimento baseadas em regras que controlam três componentes vita...