23 citations · 43 across the 4 of their papers we have counts for
3 papers · 1 filter
A verifiably secure and proportional committee election rule
Alfonso Cevallos, Alistair Stewart
The property of proportional representation in approval-based committee elections has appeared in the social choice literature for over a century, and is typically understood as av…
Local Search for Max-Sum Diversification
Alfonso Cevallos, Friedrich Eisenbrand, Rico Zenklusen
We provide simple and fast polynomial time approximation schemes (PTASs) for several variants of the max-sum diversification problem which, in its most basic form, is as follows: G…
Max-sum diversity via convex programming
Alfonso Cevallos, Friedrich Eisenbrand, Rico Zenklusen
Diversity maximization is an important concept in information retrieval, computational geometry and operations research. Usually, it is a variant of the following problem: Given a…