Pietro Gravino

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We investigate the directed and weighted complex network of free word associations in which players write a word in response to another word given as input. We analyze in details two large datasets resulting from two very different experiments: On the one hand the massive multiplayer web-based Word Association Game known as Human Brain Cloud, and on the(More)
The development of ICT infrastructures has facilitated the emergence of new paradigms for looking at society and the environment over the last few years. Participatory environmental sensing, i.e. directly involving citizens in environmental monitoring, is one example, which is hoped to encourage learning and enhance awareness of environmental issues. In(More)
In recent times, the research field of language dynamics has focused on the investigation of language evolution, dividing the work in three evolutive steps, according to the level of complexity: lexicon, categories and grammar. The Naming Game is a simple model capable of accounting for the emergence of a lexicon, intended as the set of words through which(More)
In the last few years the Web has progressively acquired the status of an infrastructure for social computation that allows researchers to coordinate the cognitive abilities of human agents in on-line communities so to steer the collective user activity towards pre-defined goals. This general trend is also triggering the adoption of web-games as a very(More)
The issue of sustainability is at the top of the political and societal agenda, being considered of extreme importance and urgency. Human individual action impacts the environment both locally (e.g., local air/water quality, noise disturbance) and globally (e.g., climate change, resource use). Urban environments represent a crucial example, with an(More)
In the last few years the Web has been progressively acquiring the status of an infrastructure for " social computing " that allows researchers to coordinate the cognitive abilities of human agents in online communities, and steer the collective user activity towards predefined goals. This general trend is also triggering the adoption of web-games as a very(More)
The complex organization of syntax in hierarchical structures is one of the core design features of human language. Duality of patterning refers, for instance, to the organization of the meaningful elements in a language at two distinct levels: a combinatorial level, where meaningless forms are combined into meaningful forms; and a compositional level,(More)
agrees to the following conditions about the use of the AirProbe data set: 1. The data set may be used for noncommercial, research purposes only. 2. The data set may not be given to third parties. 3. No attempts will be made to recover personal information such as e-mail addresses or user IDs of anonymized users represented in the data set. 4. Results(More)
agrees to the following conditions about the use of the WideNoise data set: 1. The data set may be used for noncommercial, research purposes only. 2. The data set may not be given to third parties. 3. No attempts will be made to recover personal information such as e-mail addresses or user IDs of anonymized users represented in the data set. 4. Results(More)
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