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- Lingzhi Luo, Srinivas Akella
- IEEE Transactions on Automation Science and…
- 2007

Digital microfluidic systems (DMFS) are an emerging class of lab-on-a-chip systems that manipulate individual droplets of chemicals on a planar array of electrodes. The biochemical analyses are performed by repeatedly moving, mixing, and splitting droplets on the electrodes. Mixers and storage units, composed of electrodes, are two important functional… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2013 IEEE International Conference on Robotics…
- 2013

In this paper, we present provably-good algorithms for multi-robot task assignment, where each task has to be completed within its deadline. Each robot has a upper limit on the maximum number of tasks that it can perform due to its limited battery life, and each task takes the same amount of time to complete. Each robot has a different payoff (or cost) for… (More)

- Sasanka Nagavalli, Andrew Lybarger, Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2014 IEEE/RSJ International Conference on…
- 2014

In this paper, we present both centralized and distributed algorithms for aligning coordinate frames in multi-robot systems based on inter-robot relative position measurements. Robot orientations are not measured, but are computed by our algorithms. Our algorithms are robust to measurement error and are useful in applications where a group of robots need to… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2011 IEEE International Conference on Robotics…
- 2011

In this paper, we present task allocation (assignment) algorithms for a multi-robot system where the tasks are divided into disjoint groups and there are precedence constraints between the task groups. Existing auction-based algorithms assume the task independence and hence can not be used directly to solve the class of multi-robot task assignment problems… (More)

- Sasanka Nagavalli, Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2014 IEEE International Conference on Robotics…
- 2014

Robotic swarms are distributed systems whose members interact via local control laws to achieve different behaviors. Practical missions may require a combination of different swarm behaviors, where these behavioral combinations are not known a priori but could arise dynamically due to changes in mission goals. Therefore, human interaction with the swarm… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2012 IEEE International Conference on Robotics…
- 2012

We study an online task assignment problem for multi-robot systems where robots can do multiple tasks during their mission and the tasks arrive dynamically in groups. Each robot can do at most one task from a group and the total number of tasks a robot can do is bounded by its limited battery life. There is a payoff for assigning each robot to a task and… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2013 IEEE/RSJ International Conference on…
- 2013

We present a provably-good distributed algorithm for generalized task assignment problem in the context of multirobot systems, where robots cooperate to complete a set of given tasks. In multi-robot generalized assignment problem (MR-GAP), each robot has its own resource constraint (e.g., energy constraint), and needs to consume a certain amount of resource… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- IEEE Transactions on Robotics
- 2015

In this paper, we present provably-good distributed task assignment algorithms for a heterogeneous multi-robot system, in which the tasks form disjoint groups and there are constraints on the number of tasks a robot can do (both within the overall mission and within each task group). Each robot obtains a payoff (or incurs a cost) for each task and the… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- 2010 IEEE Second International Conference on…
- 2009

The prisoner's dilemma (PD) game has been used as a prototypical model for studying social choice situations with self-interested agents. Although in a single shot PD game, both players playing defect is a Nash equilibrium, in social settings, cooperation is usually observed among self-interested agents. The emergence of cooperation has been shown in the… (More)

- Lingzhi Luo, Nilanjan Chakraborty, Katia P. Sycara
- IEEE Transactions on Automation Science and…
- 2015

We present distributed algorithms for multirobot task assignment where the tasks have to be completed within given deadlines. Each robot has a limited battery life and thus there is an upper limit on the amount of time that it has to perform tasks. Performing each task requires certain amount of time (called the task duration) and each robot can have… (More)