Industry
An Undergraduate Course in the Intersection of Computer Science and Economics
Conitzer, Vincent (Duke University)
In recent years, major research advances have taken place in the intersection of computer science and economics, but this material has so far been taught primarily at the graduate level. This paper describes a novel semester-long undergraduate-level course in the intersection of computer science and economics at Duke University, titled โCPS 173: Computational Microeconomics.โ
Building Collaborative Strategies via Imitation
Raza, Saleha (Institute of Business Administration)
This research proposes the use of imitation based learning to build collaborative strategies for a team of agents. Imitation based learning involves learning from an expert by observing her demonstrating a task and then replicating it. This mechanism makes it extremely easy for a knowledge engineer to transfer knowledge to a software agent via human demonstrations. This research aims to apply imitation to learn not only the strategy of an individual agent but also the collaborative strategy of a team of agents to achieve a common goal. The effectiveness of the proposed methodology is being assessed in the domain of RoboCup Soccer Simulation 3D which is a promising platform to address many of the complex real-world problems and offers a truly dynamic, stochastic, and partially-observable environment.
Dynamic Multiagent Resource Allocation: Integrating Auctions and MDPs for Real-Time Decisions
Hosseini, Hadi (University of Waterloo)
Multiagent resource allocation under uncertainty raises various computational challenges in terms of efficiency such as intractability, communication cost, and preference representation. To date most approaches do not provide efficient solutions for dynamic environments where temporal constraints pose particular challenges. We propose two techniques to cope with such settings: auctions to allocate fairly according to preferences, and MDPs to address stochasticity. This research seeks to determine the ideal combination between the two methods to handle wide range of allocation problems with reduced computation and communication cost between agents.
Acquiring Domain Specific Knowledge and Coreference Cues for Coreference Resolution
Gilbert, Nathan (University of Utah)
Current Coreference Resolution systems utilize a broad range of general knowledge features to make resolutions in a general setting. These approaches ignore coreference knowledge found in domain specific collections and how coreferent entities interact in different domains. This research addresses these issues by developing knowledge bases of coreference characteristics drawn from annotated and unannotated domain texts and utilizing lexical and discourse information to improve resolution.
Frugal Coordinate Descent for Large-Scale NNLS
Potluru, Vamsi (University of New Mexico)
The Nonnegative Least Squares (NNLS) formulation arises in many important regression problems. We present a novel coordinate descent method which differs from previous approaches in that we do not explicitly maintain complete gradient information. Empirical evidence shows that our approach outperforms a state-of-the-art NNLS solver in computation time for calculating radiation dosage for cancer treatment problems.
Learning Names for RFID-Tagged Objects in Activity Videos
Perera, Ian E. (University of Rochester) | Allen, James F. (University of Rochester)
A person demonstrates observed, and this technique is acceptable. However, the domains how to perform a task, such as making tea, by describing of these research efforts could be expanded if new the actions he or she carries out in front of the camera objects could be identified by their mention in descriptive and Kinect. RFID tags are placed on all relevant objects text, without any prior knowledge or mapping of the object that can accept them, and the subject wears an iBracelet on instance to a concept.
Threats and Trade-Offs in Resource Critical Crowdsourcing Tasks Over Networks
Nath, Swaprava (Indian Institute of Science, Bangalore) | Dayama, Pankaj (Global General Motors R&D โ India Science Lab) | Garg, Dinesh (IBM India Research Lab) | Narahari, Y. (Indian Institute of Science) | Zou, James (Harvard University)
In recent times, crowdsourcing over social networks has emerged as an active tool for complex task execution. In this paper, we address the problem faced by a planner to incentivize agents in the network to execute a task and also help in recruiting other agents for this purpose. We study this mechanism design problem under two natural resource optimization settings: (1) cost critical tasks, where the planner's goal is to minimize the total cost, and (2) time critical tasks, where the goal is to minimize the total time elapsed before the task is executed. We define a set of fairness properties that should be ideally satisfied by a crowdsourcing mechanism. We prove that no mechanism can satisfy all these properties simultaneously. We relax some of these properties and define their approximate counterparts. Under appropriate approximate fairness criteria, we obtain a non-trivial family of payment mechanisms. Moreover, we provide precise characterizations of cost critical and time critical mechanisms.
Real-Time Collaborative Planning with the Crowd
Lasecki, Walter S. (University of Rochester) | Bigham, Jeffrey P. (University of Rochester) | Allen, James F. (University of Rochester) | Ferguson, George (University of Rochester)
Planning is vital to a wide range of domains, including robotics, military strategy, logistics, itinerary generation and more, that both humans and computers find difficult. Collaborative planning holds the promise of greatly improving performance on these tasks by leveraging the strengths of both humans and automated planners. However, this requires formalizing the problem domain and input, which must be done by hand, a priori, restricting its use in general real-world domains. We propose using a real-time crowd of workers to simultaneously solve the planning problem, formalize the domain, and train an automated system. As plans are developed, the system is able to learn the domain, and contribute larger segments of work.
Online Sequence Alignment for Real-Time Audio Transcription by Non-Experts
Lasecki, Walter S. (University of Rochester) | Miller, Christopher D. (University of Rochester) | Borrello, Donato (Univeristy of Rochester) | Bigham, Jeffrey P. (University of Rochester)
Real-time transcription provides deaf and hard of hearing people visual access to spoken content, such as classroom instruction, and other live events. Currently, the only reliable source of real-time transcriptions are expensive, highly-trained experts who are able to keep up with speaking rates. Automatic speech recognition is cheaper but produces too many errors in realistic settings. We introduce a new approach in which partial captions from multiple non-experts are combined to produce a high-quality transcription in real-time. We demonstrate the potential of this approach with data collected from 20 non-expert captionists.