Chen Jason Zhang

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Schema matching is a central challenge for data integration systems. Automated tools are often uncertain about schema matchings they suggest, and this uncertainty is inherent since it arises from the inability of the schema to fully capture the semantics of the represented data. Human common sense can often help. Inspired by the popularity and the success(More)
As one of the successful forms of using Wisdom of Crowd, crowdsourcing, has been widely used for many human intrinsic tasks, such as image labeling, natural language understanding, market predication and opinion mining. Meanwhile, with advances in pervasive technology, mobile devices, such as mobile phones and tablets, have become extremely popular. These(More)
With the widespread use of geo-positioning services (GPS), GPSbased navigation systems have become ever more of an integral part of our daily lives. GPS-based navigation systems usually suggest multiple paths for any given pair of source and target, leaving users perplexed when trying to select the best one among them, namely the problem of best path(More)
Background: The ubiquitous second messenger Ca has been demonstrated to play an important role in cancer progression. Store-operated Ca entry (SOCE) is the main Ca entry pathway regulating intracellular Ca concentration in a variety of cancer types. The present study aimed to explore the specific mechanisms of SOCE in the processes of glioma migration and(More)
Multi-version data is often one of the most concerned information on the Web since this type of data is usually updated frequently. Even though there exist some Web information integration systems that try to maintain the latest update version, the maintained multi-version data usually includes inaccurate and invalid information due to the data integration(More)
Uncertain data has been emerged as an important problem in database systems due to the imprecise nature of many applications. To handle the uncertainty, probabilistic databases can be used to store uncertain data, and querying facilities are provided to yield answers with confidence. However, the uncertainty may propagate, hence the returned results from a(More)
Designed peptide conjugates molecules are used to direct the synthesis and assembly of gold nanoparticles into complex 1D nanoparticle superstructures with various morphologies. Four peptide conjugates, each based on the gold-binding peptide (AYSSGAPPMPPF; PEPAu ), are prepared: C12H23O-AYSSGAPPMPP (1), C12H23O-AYSSGAPPMPPF (2), C12H23O-AYSSGAPPMPPFF (3),(More)
The recent surge in popularity of crowdsourcing has brought with it a new opportunity for engaging human intelligence in the process of data analysis. Crowdsourcing provides a fundamental mechanism for enabling online workers to participate in tasks that are either too difficult to be solved solely by a computer or too expensive to employ experts to(More)
Schema matching is a central challenge for data integration systems. Due to the inherent uncertainty arose from the inability of schema in fully capturing the semantics of the represented data, automatic tools are often uncertain about suggested matching results. However, human is good at understanding data represented in various forms and crowdsourcing(More)
The popularity of crowdsourcing has recently brought about brand new opportunities for engaging human intelligence in the process of data analysis. Most existing works on crowdsourcing have developed sophisticated methods to utilize the crowd as a new kind of processor, a.k.a. Human Processor Units (HPU). In this paper, we propose a framework, called MaC,(More)