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Designing optimal pricing policies and mechanisms for allocating tasks to workers is central to online crowdsourcing markets. In… Expand Crowdsourcing markets have gained popularity as a tool for inexpensively collecting data from diverse populations of workers… Expand We explore the problem of assigning heterogeneous tasks to workers with different, unknown skill sets in crowdsourcing markets… Expand With software-as-a-service becoming mainstream, more and more applications are delivered to the client through the Web. Unlike a… Expand We consider the problem of a search engine trying to assign a sequence of search keywords to a set of competing bidders, each… Expand In the Submodular Welfare Problem, m items are to be distributed among n players with utility functions wi: 2[m] → R+. The… Expand We study an online assignment problem, motivated by Adwords Allocation, in which queries are to be assigned to bidders with… Expand WINE 2007.- Getting to Economic Equilibrium: A Problem and Its History.- My Favorite Simplicial Complex and Some of Its… Expand How does a search engine company decide what ads to display with each query so as to maximize its revenue? This turns out to be a… Expand How does a search engine company decide what ads to display with each query so as to maximize its revenue? This turns out to be a… Expand