Big Data Optimization: Recent Developments and Challenges by Ali Emrouznejad

By Ali Emrouznejad

The major goal of this ebook is to supply the required history to paintings with mammoth information by way of introducing a few novel optimization algorithms and codes able to operating within the monstrous information surroundings in addition to introducing a few functions in sizeable information optimization for either lecturers and practitioners , and to profit society, undefined, academia, and govt. proposing functions in numerous industries, this booklet can be necessary for the researchers aiming to analyses huge scale facts. a number of optimization algorithms for large info together with convergent parallel algorithms, restricted reminiscence package set of rules, diagonal package deal technique, convergent parallel algorithms, community analytics, and plenty of extra were explored during this book.

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E. without disturbing ongoing processing. As streams may continue to be processed without interruption for arbitrary lengths of time, stream processing cannot retain a full history of all past input tuples. This limits the available operations; while stream-based systems can easily support, for example, UNION operators or other stream merges, arbitrary joins over the entire history are not necessarily feasible. However, many important queries over input streams do not require full historical knowledge, only knowledge of data from the last hour or day.

Leidner, Data Scientist at Thomson Reuters, UK explains that [9]: “Usually analytics projects happen as an afterthought to leverage existing data created in a legacy process, which means not a lot of change of process is needed at the beginning. This situation changes once there is resulting analytics output, and then the analytics-generating process needs to be integrated with the previous processes”. How good is the “value” that can be derived by analyzing big data? First of all, to justify a big data project in an enterprise, in most cases there is a need to identify a quantitative ROI.

As aforementioned, NoSQL systems usually run in a distributed environment and thus need to be partition tolerant. At the same time they need to be highly available for thousands of users. Those two properties can fully be achieved only by using a weaker consistency model. For this reason, most NoSQL systems do not support ACID transactions [21], but instead use a weaker consistency model such as eventual consistency [22, 23], also called BASE (Basically Available, Soft State, Eventual Consistency).

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