Hang Zhuang

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With the coming concept of 'big data', the ability to handle large datasets has become a critical consideration for the success of industrial organizations such as Google, Amazon, Yahoo! and Facebook. As an important Cloud Computing framework for bulk data processing, Hadoop is widely used in these organizations. However, the performance of MapReduce is(More)
Hadoop is a popular framework that provides easy programming interface of parallel programs to process large scale of data on clusters of commodity machines. Data intensive programs are the important part running on the cluster especially in large scale machine learning algorithm which executes of the same program iteratively. In-memory cache of input data(More)
—Sequence alignment algorithms are a basic and critical component of many bioinformatics fields. With rapid development of sequencing technology, the fast growing reference database volumes and longer length of query sequence become new challenges for sequence alignment. However, the algorithm is prohibitively high in terms of time and space complexity. In(More)
BACKGROUND The evidence supporting the use of β-blockers in patients with acute coronary syndrome after successful percutaneous coronary intervention has been inconsistent and scarce. METHODS AND RESULTS Between March 1, 2009, and December 30, 2014, a total of 3180 eligible patients with acute coronary syndrome undergoing percutaneous coronary(More)
With the development of cloud computing and internet, e-Commerce, e-Business and corporate world revenue are increasing with high rate. These areas require scalable and consistent databases. NoSQL databases such as HBase has been proven to scalability and well performance on cloud computing platforms. However, the inevitable special data with few increment(More)
HBase is a popular distributed Key/Value storage system based on the idea of BigTable. It is being used in many data-centers, such as Facebook and Twitter, for their portability and scalability. For the system, low-latency and large storage is expected when used in industry. However, it is time consuming when retrieving one column via another one. Many(More)