Fair and Efficient Online Allocations with Normalized Valuations

Authors: Vasilis Gkatzelis, Alexandros Psomas, Xizhi Tan5440-5447

AAAI 2021 | Conference PDF | Archive PDF | Plain Text | LLM Run Details

Reproducibility Variable Result LLM Response
Research Type Theoretical To prove our results, we leverage the fact that our algorithms have a closed-form expression for the agents allocations and utilities. We can use this fact and write a mathematical program that computes the worst-case approximation to the optimal welfare over all instances. We use variables vt for the value of agent 1 for item t and λt for the ratio between agents values. Even though this program is not itself convex (so at first glance it s unclear how useful it is), we show that under a suitable choice of variables and constraints, fixing some of the variables (i.e. treating them as constants) gives a linear program with respect to the remaining variables.
Researcher Affiliation Academia Vasilis Gkatzelis,1 Alexandros Psomas, 2 Xizhi Tan 1 1 Drexel University 2 Purdue University gkatz@drexel.edu, apsomas@cs.purdue.edu, xizhi@drexel.edu
Pseudocode No The paper describes algorithms using mathematical expressions and prose but does not include structured pseudocode or algorithm blocks.
Open Source Code No The paper does not provide concrete access to source code for the methodology described.
Open Datasets No The paper is theoretical and does not use datasets or specify publicly available ones for training.
Dataset Splits No The paper is theoretical and does not involve dataset splits for training, validation, or testing.
Hardware Specification No The paper is theoretical and does not mention specific hardware used for experiments.
Software Dependencies No The paper mentions using 'numerical solvers' for proofs but does not specify any software names with version numbers.
Experiment Setup No The paper is theoretical and focuses on mathematical proofs and algorithm properties, not on specific experimental setup details like hyperparameters or training configurations.