Big data (BD) is attaining major attention in the information field due to the eruption of data in
the preceding decade. Philosophical techniques of “query optimization (QO)” have an …

Storing as well as retrieving the data on a specific time frame is fundamental for any
application today. So an efficiently designed query permits the user to get results in the …

The new generation of information technology is exchanging a huge data and these data
should be process for analytical and visualization purposes. In most of our daily activities we …

Improving query performance remains one of the most interesting and challenging goals for
both the academic and industrial communities. Indeed, cloud computing has complicated …

MapReduce and its variants have emerged as viable competitors for big data analysis with a
commodity cluster of machines. As an extension of MapReduce, ComMapReduce realizes …

With rise in new technologies like Big Data, Internet of Things, Sensor Networks, etc. new
query processing and optimization techniques have been evolved which handles the …

Data generation and collection is a continuous process throughout the world. It is going to
be difficult to handle various challenges that arise because of various categories of data …

The huge potential associated with big data has prompted a developing research field that
has rapidly attracted huge enthusiasm from differing sectors. Unlike traditional databases …

In today's world, most of the private and public sector organizations deal with massive
amounts of raw data, which includes information and knowledge in their secret layer. In …

With the rapid development of big data technology, big data systems are more and more
used to process SQL query jobs. However, intricate big data system parameters have big …