Characteristics of Set collection Set is an unordered, non-repeating data structure. Its characteristics are as follows: 1. The elements in the set are unordered: The elements in the Set have no order and cannot be accessed through indexes. 2. The elements in the set are unique: Duplicate elements are not allowed in the Set, and […]
Tag: deduplication
Array—-Array deduplication of one-dimensional array (c++) (please pay attention to 555)
Remove duplicate numbers Question description Give you N numbers (n≤100), each number is between (0~1000), among which there are many For complex numbers, please keep only one repeated number and arrange the remaining numbers from smallest to largest. sequence and output. Sample Enter copy 10 20 40 32 67 40 20 89 300 400 15 […]
The deduplication principle of HashSet
The set collection has no index value and cannot be repeated. The bottom layer is map. When adding an element, the hashCode() method will be called first to calculate the hash value of the object, and then use the hash value % of the array length to calculate the index value position of the new […]
HashSet deduplication principle
1. What is Hashset Collections in Java are divided into Collection collections (single-column collections) and Map collections (double-column collections) The Hashset collection is an implementation class of the set interface. The set interface also inherits from the top-level parent class Collection interface, so HashSet can have methods common to Collection. The characteristics of the set […]
21.11 Python uses CRC image deduplication
Using CRC32 can also realize the image deduplication function. The following FindRepeatFile function performs crc verification on all files after running and adds the check value. Store it in the CatalogueDict dictionary, then extract the CRC feature values and store them in the CatalogueList list, and then count the number of occurrences of the feature […]
[C++ code] Backtracking, subsets, combinations, full arrangements, deduplication – Code Random Notes
Title: Split palindrome string Given a string s, please split s into some substrings so that each substring is a palindrome string. Returns all possible splitting options for s. Palindrome string is a string that reads the same when read forward or backward. In the for (int i = startIndex; i < s.size(); i + […]
Text deduplication: n-gram, minhash, minhash lsh, jaccard
Write a custom directory title here N-gram Jaccard similarity MinHash MinHash LSH connections and differences n-gram and jaccard deduplication n-gram, minhash and jaccard to remove duplicates n-gram and minhash lsh deduplication When it comes to text deduplication scenarios, a variety of techniques and algorithms can be used to achieve this. The following is an explanation […]
MapReduce programming: data filtering and saving, UID deduplication
Article directory MapReduce programming: data filtering and saving, UID deduplication 1. Experimental goals 2. Experimental requirements and precautions 3. Experimental content and steps Attachment: series of articles MapReduce programming: data filtering and saving, UID deduplication 1. Experimental objectives Proficient in writing Mapper class, Reducer class and main function Proficient in local testing methods Proficient in […]
How to implement deduplication in Java? Is this showing off your skills?
Hello everyone, I am 3y. Since the deduplication logic has been reconstructed several times, many shareholders said they couldn’t understand it, so I will arrange another wave of code analysis today. austin supports two types of deduplication: the same content N times in N minutes and the same channel frequency N times in a day […]
What are the 9 js array deduplication methods?
Article directory 1. Use ES6 Set to remove duplicates (most commonly used in ES6) 2. Use for to nest for, and then use splice to remove duplicates (most commonly used in ES5) 3. Use indexOf to remove duplicates 4. Use sort() 5. Use includes() 6. Use hasOwnProperty 7. Use filter 8. Use recursion to remove […]