We propose that abstraction is an interpersonal process and serves a social function. Research on shared reality shows that in communication, people raise their level of abstraction in order to create a common understanding with their communication partner, which can subsequently distort their mental representation of the object of communication. This work demonstrates that, beyond building accurate models, abstraction also functions to build socially shared models – to create a shared reality.

Niccolò Machiavelli's support for what he calls governo largo, or popular government, is usually contrasted with the diffidence towards it of Francesco Guicciardini, the Florentine aristocrat. The article argues that both these authors grounded their vision on Polybius' theory of “mixed government,” though adapting it in different directions. In examining this difference, the article reaches the conclusion that it concerns far less the degree of popular participation in political decision-making and government than the value that Machiavelli and Guicciardini respectively ascribe (...) to it in comparison with that of safety-liberty. In this respect, their theories may be viewed as anticipating the tensions between democracy and the rule of law, the co-presence of which provides the essential foundation of the structure of present-day constitutional democracies. (shrink)

In Modern Standard Russian, the prefix/preposition pair u-/u is peculiar with respect to other similar pairs, due to the meaning mismatch between the two. While the prefix u- has an ablative meaning, as shown when it is prefixed to motion verbs, the prepositional phrase u+gen occurs in locative constructions, and other related constructions, such as predicative possession that is expressed via the cross-linguistically common Locative Schema. Etymological considerations show that the meaning preserved by the prefix is older. The only type (...) of occurrence which, according to the literature, preserves the ablative meaning for the u+gen construction is found with verbs of requesting, removing, and buying. Notably, however, in other Slavic languages putative ablative contexts are limited to verbs of requesting. Data from MSR, Old Church Slavic, Polish and Czech lead to the conclusion that the extension of the u+gen construction to verbs of removing in MSR is based on its use for the encoding of predicative possession. Extension to verbs of buying is better explained through the locative meaning of the construction. As a result of different developments, the u+gen construction has become part of the argument structure of a group of verbs including verbs of asking and requesting, verbs of removing, and verbs of buying, which are characterized by the common feature of taking human non-recipient third arguments. We argue that the different usages of the u+gen construction in MSR constitute an instance of constructionalization based on the merger of originally different constructions. We further argue that accounting for this development in constructional terms offers better insights in the relation among the various different usages of u+gen than simply focusing on the meaning of the preposition and its polysemy pattern. (shrink)

The increasing availability of personal data of a sequential nature, such as time-stamped transaction or location data, enables increasingly sophisticated sequential pattern mining techniques. However, privacy is at risk if it is possible to reconstruct the identity of individuals from sequential data. Therefore, it is important to develop privacy-preserving techniques that support publishing of really anonymous data, without altering the analysis results significantly. In this paper we propose to apply the Privacy-by-design paradigm for designing a technological framework to counter the (...) threats of undesirable, unlawful effects of privacy violation on sequence data, without obstructing the knowledge discovery opportunities of data mining technologies. First, we introduce a k-anonymity framework for sequence data, by defining the sequence linking attack model and its associated countermeasure, a k-anonymity notion for sequence datasets, which provides a formal protection against the attack. Second, we instantiate this framework and provide a specific method for constructing the k-anonymous version of a sequence dataset, which preserves the results of sequential pattern mining, together with several basic statistics and other analytical properties of the original data, including the clustering structure. A comprehensive experimental study on realistic datasets of process-logs, web-logs and GPS tracks is carried out, which empirically shows how, in our proposed method, the protection of privacy meets analytical utility. (shrink)

The article examines Hans Kelsen's and Carl Schmitt's lines of thought concerning the relationship between constitutional and international law, with the aim of ascertaining their respective ability to capture developments affecting that relationship, even those of a contradictory nature. It is significant that, while the rise of wars of humanitarian intervention in the post-Cold War era has evoked Schmitt's concept of the bellum iustum, the evolution in the direction of the “constitutionalisation of international law” has drawn attention to Kelsen's theoretical (...) approach. However, these assumptions rely heavily on the opposing objectives that the two authors claimed to pursue, such as, respectively, the search for the ultimate seat of political power and a pure theory of law. Things are more complicated, both because these objectives by no means exhaust Kelsen's and Schmitt's lines of thought, and because the conception of sovereignty as omnipotence, at the core of the Weimar controversy, is now behind us. (shrink)