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Oral Candidacy - Boyang Li

Start: 8/20/2019 at 10:00AM
End: 8/20/2019 at 1:00PM
Location: 315 Stinson Remick
Attendees: Faculty and Students are welcome to attend the presentation portion of the event.
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Boyang Li

Oral Candidacy Exam

August 20, 2019        10:00 am        315 Stinson

Adviser:  Dr. Yiyu Shi

Committee Members:

Dr. Taeho Jung      Dr. Walter Scheirer      Dr. Jinjun Xiong


"3D City Reconstruction with a Novel Consensus Managed Platform"


Bitcoin, as one of the most successful blockchain applications, attracts unprecedented attention and investment from both academia and industry. To maintain the consistency of transaction data, the proof-of-work consensus mechanism utilizes the brute-force algorithm to host a competition of hardware and energy. To mine cryptocurrency more efficient, people developed GPU mining, FPGA mining, and ASIC machine mining. However, they still suffer from the issue of wasting energy. The proof-of-useful-work consensus has been proposed to execute relatively more useful tasks to maintain the consistency, therefore the ``wasted energy'' contribute to useful work. 

On top of proof-of-useful-work consensus, I demonstrate the feasibility to exploit the computation power of blockchain for the deep learning algorithm. Because all miners are required to work on the same task in my previous work, it still wastes the majority of energy due to the computation redundancy.

In this proposal, I introduce three projects with the title of the Free market, Dynamic mining pool, and 3D city reconstruction with a novel consensus managed platform, respectively, for the rest of my Ph.D. research. The first two works aim to reduce the computation redundancy to calculate useful work more efficient. In the third work, I will introduce a novel consensus managed platform. This novel consensus will be more energy-efficient and more functional than the traditional proof-of-useful-work system.