Yunwei Zhao

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Most social media analyses such as sentiment analysis for microblogs are often built as standalone, endpoint to endpoint applications. This makes the collaboration among distributed software and data service providers to create composite social analytic solutions difficult. This paper first proposes a system of systems service architecture (SoS-SA) design(More)
With the current direction of service and cloud, unique characteristics of online software services impose new algorithmic requirements and cause differential applicability/ suitability of different clustering approaches in service analytics. In this paper, we investigate the efficiency and effectiveness of current important data clustering techniques,(More)
The surface roughness and material removal is investigated in electrorheological (ER) fluid-assisted polishing of tungsten carbide die. In this study, the microstructure of fibrous columns formed by particles perpendicular to the electrodes is observed by CCD when the electrical field is applied. The distribution of the electric field strength on the(More)
To improve the operation and the flexibility of the robot hand, in this paper we presented a new type pneumatic flexible robot hand based on the pneumatic artificial muscles and active flexible bending joints which developed in the previous research. The robot hand is imposed of five three-joint fingers; the middle finger is on the datum axis with the other(More)
In big data analytics, clustering plays a fundamental and decisive role in supporting pattern mining and value creation. To help improve user experience and satisfaction level of clustering algorithms, one important key is to let users define the quality of the aggregated clusters (e.g. In terms of the homogeneity and the relative population of each(More)
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