Shenzhen University

About: Shenzhen University is a education organization based out in Shenzhen, China. It is known for research contribution in the topics: Computer science & Laser. The organization has 28054 authors who have published 35378 publications receiving 522023 citations.

OpinionSeer: Interactive Visualization of Hotel Customer Feedback

Abstract: The rapid development of Web technology has resulted in an increasing number of hotel customers sharing their opinions on the hotel services. Effective visual analysis of online customer opinions is needed, as it has a significant impact on building a successful business. In this paper, we present OpinionSeer, an interactive visualization system that could visually analyze a large collection of online hotel customer reviews. The system is built on a new visualization-centric opinion mining technique that considers uncertainty for faithfully modeling and analyzing customer opinions. A new visual representation is developed to convey customer opinions by augmenting well-established scatterplots and radial visualization. To provide multiple-level exploration, we introduce subjective logic to handle and organize subjective opinions with degrees of uncertainty. Several case studies illustrate the effectiveness and usefulness of OpinionSeer on analyzing relationships among multiple data dimensions and comparing opinions of different groups. Aside from data on hotel customer feedback, OpinionSeer could also be applied to visually analyze customer opinions on other products or services.

Recent advances in MXene–based electrochemical sensors and biosensors

Abstract: MXenes are two–dimensional layered materials of early transition metal carbides and/or nitrides applied in multiple scientific applications ranging from catalysis, energy storage, to sensors owing to their fascinating and technologically useful properties. This review presents an overview of the current state–of the–art progresses in the field of electrochemical (bio) sensors for the detection of biomarkers, pharmaceutical drugs, and environmental contaminants. Firstly, how synthetic strategies and surface functionalization affect various properties of MXenes, and consequently, the sensing performances are highlighted. Secondly, MXenes as an electrode modifier for the detection of pharmaceutical drugs, environmental contaminants, and important disease biomarkers such as cancer biomarkers, glucose, hydrogen peroxide, etc., are well discussed. Finally, challenges in this field with possible solutions and future opportunities are discussed.