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A lazy copy is an implementation of a deep copy. When initially copying an object, a (fast) shallow copy is used. A counter is also used to track how many objects share the data. When the program wants to modify an object, it can determine if the data is shared (by examining the counter) and can do a deep copy if needed.
In computer programming, duplicate code is a sequence of source code that occurs more than once, either within a program or across different programs owned or maintained by the same entity. Duplicate code is generally considered undesirable for a number of reasons. [ 1 ]
"Don't repeat yourself" (DRY), also known as "duplication is evil", is a principle of software development aimed at reducing repetition of information which is likely to change, replacing it with abstractions that are less likely to change, or using data normalization which avoids redundancy in the first place.
In computing, data deduplication is a technique for eliminating duplicate copies of repeating data. Successful implementation of the technique can improve storage utilization, which may in turn lower capital expenditure by reducing the overall amount of storage media required to meet storage capacity needs.
A large scale evaluation has been conducted by Google in 2006 [2] to compare the performance of Minhash and Simhash [3] algorithms. In 2007 Google reported using Simhash for duplicate detection for web crawling [4] and using Minhash and LSH for Google News personalization.
From Boeing's turbulence and a catastrophic hurricane, to Donald Trump's election victory, "Sunday Morning" host Jane Pauley looks back at key events of a year that was monumental.
Duplicate thread prevention [ edit ] Automatic recommendation systems based on content and users can help forum users find existing discussions similar to those they are browsing or on the topic they are searching, [ 113 ] or else reach the correct users with their posts, avoiding to "spam" the forum with duplicate or off-topic posts.
Officers gained access to the home via a basement window and were told by the murder suspect that he “knows he was not free to leave because he accidentally killed someone.”