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Consortium of Swiss Academic Libraries

The Clique Problem in Intersection Graphs of Ellipses and Triangles

Ambühl, Christoph ; Wagner, Uli

In: Theory of Computing Systems, 2005, vol. 38, no. 3, p. 279-292

Università della Svizzera italiana

Causal loops : logically consistent correlations, time travel, and computation

Ämin, Baumeler ; Wolf, Stefan (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO002.

Causal loops are loops in cause-effect chains: An effect can be the cause of that effect's cause. We show that causal loops can be unproblematic, and explore them from different points of view. This thesis is motivated by quantum theory, general relativity, and quantum gravity. By accepting all of quantum theory one can ask whether the possibility to take superpositions extends to causal...

Università della Svizzera italiana

Analysis and new constructions of generalized barycentric coordinates in 2D

Anisimov, Dmitry ; Hormann, Kai (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2017 ; 2017INFO004.

Different coordinate systems allow to uniquely determine the position of a geometric element in space. In this dissertation, we consider a coordinate system that lets us determine the position of a two-dimensional point in the plane with respect to an arbitrary simple polygon. Coordinates of this system are called generalized barycentric coordinates in 2D and are widely used in computer...

Università della Svizzera italiana

Exploiting under-utilized cores with deferred methods

Ansaloni, Danilo ; Binder, Walter ; Heydarnoori, Abbas ; Chen, Lydia Y.

Effective parallelization of fine-grained tasks, such as in dynamic program analysis, is challenging because thread communication overheads may outweigh the benefits of parallelism. In this paper, we address this issue with deferred methods, a novel Java framework that aggregates invocations of analysis methods in thread-local buffers and processes them altogether when a buffer is full. The...

Università della Svizzera italiana

Architectural exploration and scheduling methods for coarse grained reconfigurable arrays

Ansaloni, Giovanni ; Pozzi, Laura (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2011 ; 2011INFO006.

Coarse Grained Reconfigurable Arrays have emerged, in recent years, as promising candidates to realize efficient reconfigurable platforms. CGRAs feature high computational density, flexible routing interconnect and rapid reconfiguration, characteristics that make them well-suited to speed up execution of computational kernels. A number of designs embodying the CGRA concept have been proposed...

Università della Svizzera italiana

The use of a variable cost function in the regulation of the Italian water industry

Antonioli, Barbara ; Filippini, Massimo

The purpose of this study is to estimate a multivariate variable cost function in order to analyze the cost structure of a sample of Italian water distribution companies. The empirical results of this study could be used by the Italian Regulation Authority of this sector for two purposes: first, to improve the actual tariff regulation process, based on a benchmarking of variable costs, and...

Università della Svizzera italiana

Optimal size in the waste collection sector

Antonioli, Barbara ; Filippini, Massimo

The purpose of this study is to analyze the cost structure of a sample of Italian waste collection firms in order to assess economies of scale and density and, therefore, to define the optimal size of the firms in this sector. A total and a variable translog cost function were estimated using panel data for a sample of 30 firms of waste collection and disposal operating at the provincial level...