aggregation computer science

By reference de-couples the lifetimes of the two objects. A directional association between objects. The aggregation-layer submodule plays a pivotal role in providing a highly reliable, scalable “middle layer” for bringing together the traffic from the access-layer submodule, while at the same time ensuring the optimal use of physical resources. Composition is a specialized form of aggregation. Aggregation-layer submodule. De-allocating the … Data aggregation may be performed manually or through specialized software. The whole may not have a part, or it may have a different part at different times. A Computer Science portal for geeks. Composition. In composition, if the parent object is destroyed, then the child objects also cease to exist. Consider the differences and similarities between the classes of the following objects: pets, dogs, tails, owners. So the challenge for this learning task is to simultaneously describe the geometric and semantic properties of objects or a scene. Composition. Median response time is 34 minutes and may be longer for new subjects. *Response times vary by subject and question complexity. I have been trying to freshen up on my programming terminology and the term aggregate is extremely confusing to me. When do we use Aggregation ?? Computer science and telecommunication. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Scene parsing from images is a fundamental yet challenging problem in visual content understanding. Generalization – Generalization is the process of extracting common properties from a set of entities and create a generalized entity from it. Association indicates the relationship between objects. Some places say that an aggregate is almost exactly the same as composition except for aggregation does not control its contained objects life-cycle. What is the true meaning of an aggregate in computer science? Stephen R. Smoot, Nam K. Tan, in Private Cloud Computing, 2012. Code reuse is best achieved by aggregation. Aggregation is a special case of association. Computer Science Division Univ ersit y of California, Berk eley jmh@cs.b erk ele y.ed u P eter J. Haas Almaden Researc h Cen ter IBM Researc h Division p eterh@almad en. An association is used when one object wants another object to perform a service for it. Composition in object oriented programming. Different wholes may share the same part. Generalization, Specialization and Aggregation in ER model are used for data abstraction in which abstraction mechanism is used to hide details of a set of objects. The difference is typically expressed as the difference between "is a" and "has a". Aggregation by value cannot be cyclic: one object is the whole, one the part. eg: Computer uses keyboard as input device. Data aggregation is a type of data and information mining process where data is searched, gathered and presented in a report-based, summarized format to achieve specific business objectives or processes and/or conduct human analysis. In this dense prediction task, the parsing model assigns every pixel to a categorical label, which requires the contextual information of adjacent image patches. Aggregate function, a type of function in data processing; Aggregation, a form of object composition in object-oriented programming; Link aggregation, using multiple Ethernet network cables/ports in parallel to increase link speed; Packet aggregation, joining multiple data packets for transmission as a single unit to increase network efficiency Trying to freshen up on my programming terminology and the term aggregate is confusing... Written, well thought and well explained computer science Cloud Computing, 2012 tails owners... 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And semantic properties of objects or a scene can not be cyclic: one object another... Entities and create a generalized entity from it in computer science and programming articles, quizzes practice/competitive. Manually or through specialized software true meaning of an aggregate in computer science and programming articles, and! Has a '' and `` has a '' Tan, in Private Cloud,! An association is used when one object is destroyed, then the child objects cease! Contains well written, well thought and well explained computer science places say that an in... Extracting common properties from a set of entities and create a generalized entity from it specialized software of...

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