scholarly journals On Budget-Feasible Mechanism Design for Symmetric Submodular Objectives

Author(s):  
Georgios Amanatidis ◽  
Georgios Birmpas ◽  
Evangelos Markakis
2021 ◽  
Vol 16 (6) ◽  
pp. 2014-2030
Author(s):  
Alireza Mohammadi ◽  
Seyyed Alireza Hashemi Golpayegani

In today’s world, crowdsourcing is regarded as an effective strategy to deal with a high volume of small issues whose solutions can have their own complexities in systems. Moreover, requesters are currently providing hundreds of thousands of tasks in online job markets and workers need to perform these tasks to earn money. Thus far, various aspects of crowdsourcing including budget management, mechanism design for price management, forcing workers to behave truthfully in bidding prices, or maximized gains of crowdsourcing have been considered in different studies. One of the main existing challenges in crowdsourcing is how to ensure truthful reporting is provided by contributing workers. Since the amount of pay to workers is directly correlated with the number of tasks performed by them over a period of time, it can be predicted that strong incentives encourage them to carry out more tasks by giving untruthful answers (providing the first possible answer without examining it) in order to increase the amount of pay. However, crowdsourcing requesters need to obtain truthful reporting as an output of tasks assigned to workers. In this study, a mechanism was developed whose implementation in crowdsourcing could ensure truthful reporting by workers. The mechanism provided in this study was evaluated as more budget feasible and it was also fairer for requesters and workers due to its well-defined procedure.


Author(s):  
Xiaohui Bei ◽  
Ning Chen ◽  
Nick Gravin ◽  
Pinyan Lu

2021 ◽  
Vol 9 (1) ◽  
pp. 1-20
Author(s):  
Pooya Jalaly ◽  
Éva Tardos

We study the problem of a budget limited buyer who wants to buy a set of items, each from a different seller, to maximize her value. The budget feasible mechanism design problem requires the design a mechanism that incentivizes the sellers to truthfully report their cost and maximizes the buyer’s value while guaranteeing that the total payment does not exceed her budget. Such budget feasible mechanisms can model a buyer in a crowdsourcing market interested in recruiting a set of workers (sellers) to accomplish a task for her. This budget feasible mechanism design problem was introduced by Singer in 2010. We consider the general case where the buyer’s valuation is a monotone submodular function. There are a number of truthful mechanisms known for this problem. We offer two general frameworks for simple mechanisms, and by combining these frameworks, we significantly improve on the best known results, while also simplifying the analysis. For example, we improve the approximation guarantee for the general monotone submodular case from 7.91 to 5 and for the case of large markets (where each individual item has negligible value) from 3 to 2.58. More generally, given an r approximation algorithm for the optimization problem (ignoring incentives), our mechanism is a r + 1 approximation mechanism for large markets, an improvement from 2 r 2 . We also provide a mechanism without the large market assumption, where we achieve a 4 r + 1 approximation guarantee. We also show how our results can be used for the problem of a principal hiring in a Crowdsourcing Market to select a set of tasks subject to a total budget.


Author(s):  
Weiwei Wu ◽  
Xiang Liu ◽  
Minming Li

This paper considers the mechanism design problem in two-sided markets where multiple strategic buyers come with budgets to procure as much value of items  as possible from the strategic sellers. Each seller holds an item with public value and is allowed to bid its private cost.  Buyers could claim their budgets, not necessarily the true ones.  The goal is to seek budget-feasible mechanisms that ensure sellers are rewarded enough payment and buyers' budgets are not exceeded.  Our main contribution  is a random  mechanism  that guarantees various desired theoretical guarantees like the budget feasibility,  the truthfulness on the sellers' side and the buyers' side simultaneously, and constant approximation to the optimal total procured value of buyers. 


2014 ◽  
Vol 12 (2) ◽  
pp. 24-31 ◽  
Author(s):  
Yaron Singer

2013 ◽  
Author(s):  
Aranyak Mehta
Keyword(s):  

2018 ◽  
Vol 12 (5) ◽  
pp. 393
Author(s):  
Olga V. Egorova ◽  
Gennady A. Timofeev ◽  
Marina V. Samoilova

Sign in / Sign up

Export Citation Format

Share Document