Jia-Yau Shiau

Jia-Yau Shiau

Energetic Data Scientist & Software Engineer.

Publications

Driver Drowsiness Estimation by Parallel Linked Time-Domain CNN with Novel Temporal Measures on Eye States

Published in The 41th IEEE International Engineering in Medicine and Biology Conference, Jul. 2019

We presents a vision-based driver drowsiness estimation system from sequences of driver images. A stage-by-stage system instead of an end-to-end system is proposed for driver drowsiness estimation. Extensive experiments have been conducted on a driving video dataset recorded in real cars. Our system achieves a high accuracy of 95.86% and the MAE of 0.4007.

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Tight approximation for partial vertex cover with hard capacities

Published in Theoretical Computer Science, Jan. 2019

We consider the partial vertex cover problem with hard capacity constraints on hypergraphs. In this paper we present a tight approximation for this problem. Our new ingredient of this work is a generalized analysis on the extreme points of the natural LP and a strengthened LP lower-bound obtained for the optimal solutions.

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Tight approximation for partial vertex cover with hard capacities

Published in The 28th International Symposium on Algorithms and Computation, Dec. 2017

We consider the partial vertex cover problem with hard capacity constraints on hypergraphs. In this paper we present a tight approximation for this problem. Our new ingredient of this work is a generalized analysis on the extreme points of the natural LP and a strengthened LP lower-bound obtained for the optimal solutions.

Download here