3 papers
Repeated Descent: A Framework for Online Budget-Feasible Auctions
Andreas Charalampopoulos, Dimitris Fotakis, Thanos Tolias
We study budget feasible procurement auctions, in which agents, each with a privately held service cost, offer their services to an employer. The employer seeks to maximize a p…
A Competitive Posted-Price Mechanism for Online Budget-Feasible Auctions
Andreas Charalampopoulos, Dimitris Fotakis, Panagiotis Patsilinakos +1
We consider online procurement auctions, where the agents arrive sequentially, in random order, and have private costs for their services. The buyer aims to maximize a monotone sub…
Enhancing Fast Feed Forward Networks with Load Balancing and a Master Leaf Node
Andreas Charalampopoulos, Nikolas Chatzis, Foivos Ntoulas-Panagiotopoulos +2
Fast feedforward networks (FFFs) are a class of neural networks that exploit the observation that different regions of the input space activate distinct subsets of neurons in wide…