Yufei Chen

Modeling interactive sensor-behavior with smartphones for implicit and active user authentication

2017

While the public enjoy the convenience aroused by the proliferation of the smartphones, they also face the risk of exposing their sensitive and secure information to attackers. Extant smartphone authentication methods (e.g., PIN and fingerprint) …

Hand-Interactive Behavior Analysis for User Authentication Systems with Wrist-Worn Devices

2018

The growing trend of using wearable devices for context-aware computing and pervasive sensing systems has raised its potentials for quick and reliable authentication techniques. We collect users' writing actions with their wrist-worn devices and discover …

Accurate SHRG-Based Semantic Parsing

2018

We demonstrate that an SHRG-based parser can produce semantic graphs much more accurately than previously shown, by relating synchronous production rules to the syntacto-semantic composition process. Our parser achieves an accuracy of 90.35 for EDS …