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duplicate detection

16 articles · Page 1 of 1
Data Integration and Governance
Data Integration and Governance
May 27, 2026 · Big Data

10 Essential Data Cleaning Techniques Every AI Project Needs

The article outlines ten practical data‑cleaning methods—covering missing‑value imputation, duplicate handling, outlier detection, normalization, discretization, text cleaning, type conversion, multi‑source alignment, feature engineering, and sensitive‑data masking—explaining why each step matters for reliable AI model training.

Big Datadata cleaningdata masking
0 likes · 13 min read
10 Essential Data Cleaning Techniques Every AI Project Needs
php Courses
php Courses
Jan 13, 2026 · Backend Development

How to Detect Duplicate Elements in a PHP Array in O(n) Time

This article explains how to determine whether an integer array contains any duplicate values using a PHP solution that leverages an associative map to achieve linear time and space complexity, complete with example inputs, detailed code walkthrough, and complexity analysis.

AlgorithmArrayPHP
0 likes · 4 min read
How to Detect Duplicate Elements in a PHP Array in O(n) Time
php Courses
php Courses
Nov 21, 2025 · Fundamentals

How to Detect Duplicate Elements in a PHP Array in O(n) Time

This guide explains how to determine whether an integer array contains any duplicate values by iterating once, using a PHP associative array to track seen elements, and returning true on the first repeat or false if all elements are unique, with detailed code, step‑by‑step flow, and complexity analysis.

array algorithmduplicate detectiontime-complexity
0 likes · 4 min read
How to Detect Duplicate Elements in a PHP Array in O(n) Time
php Courses
php Courses
Jul 14, 2025 · Backend Development

Detect Duplicates in a PHP Array with an O(n) Solution

This article explains how to efficiently detect duplicate elements in a PHP integer array using an O(n) algorithm, detailing the solution class, step‑by‑step execution flow, and its linear time and space complexities.

array algorithmduplicate detectionspace complexity
0 likes · 4 min read
Detect Duplicates in a PHP Array with an O(n) Solution
php Courses
php Courses
Jun 4, 2025 · Backend Development

Detecting Duplicate Elements in an Array with PHP

This article explains how to determine whether an integer array contains any duplicate values using a PHP solution that iterates the array, stores seen elements in an associative map, and returns true on the first repeat, with O(n) time and space complexity.

AlgorithmArrayPHP
0 likes · 4 min read
Detecting Duplicate Elements in an Array with PHP
php Courses
php Courses
Jan 15, 2025 · Backend Development

Detecting Duplicate Elements in an Array with PHP

This article explains how to determine whether an integer array contains duplicate values by iterating through the elements, using a PHP associative array for constant‑time lookups, and provides the full solution code along with its execution flow, time and space complexity analysis.

AlgorithmArrayPHP
0 likes · 4 min read
Detecting Duplicate Elements in an Array with PHP
php Courses
php Courses
Nov 4, 2024 · Fundamentals

Detecting Duplicate Elements in an Array Using PHP

This article explains how to determine whether an integer array contains duplicate values by traversing the array with a PHP solution that uses an associative map, and it details the algorithm's execution flow, time and space complexity, and provides sample inputs and outputs.

PHPduplicate detectionspace complexity
0 likes · 4 min read
Detecting Duplicate Elements in an Array Using PHP
php Courses
php Courses
Jul 19, 2024 · Backend Development

PHP Solution for Detecting Duplicate Elements in an Integer Array

This article explains how to determine whether an integer array contains duplicate values by iterating through each element, using a PHP associative array to track occurrences, and returning true if any value appears at least twice, with detailed code, execution flow, and time‑space complexity analysis.

array algorithmduplicate detectionspace complexity
0 likes · 4 min read
PHP Solution for Detecting Duplicate Elements in an Integer Array
php Courses
php Courses
Jul 12, 2024 · Fundamentals

Detecting Duplicate Elements in an Array Using PHP

This article explains how to determine whether an integer array contains any duplicate values by iterating through the elements, using a hash map for constant‑time lookups, and provides a PHP implementation of the containsDuplicate function along with its time and space complexity analysis.

AlgorithmArrayduplicate detection
0 likes · 4 min read
Detecting Duplicate Elements in an Array Using PHP
php Courses
php Courses
Mar 29, 2024 · Backend Development

Detecting Duplicate Elements in an Array Using PHP

This article explains how to determine whether an integer array contains duplicate values by iterating through each element, using a PHP class with a containsDuplicate method that employs an associative array for O(n) time and space complexity, and provides example inputs and detailed execution flow.

PHPduplicate detectionspace complexity
0 likes · 4 min read
Detecting Duplicate Elements in an Array Using PHP
Python Crawling & Data Mining
Python Crawling & Data Mining
Nov 27, 2022 · Fundamentals

Detect Duplicate Orders in Excel with Python and Pandas

Learn how to automatically spot duplicate orders within a month in Excel by adding a year‑month column and using COUNTIF, then see a more powerful Python‑Pandas solution that processes the spreadsheet, complete with code snippets and step‑by‑step explanations.

duplicate detection
0 likes · 3 min read
Detect Duplicate Orders in Excel with Python and Pandas
Programmer DD
Programmer DD
Dec 4, 2021 · Fundamentals

How to Prevent Duplicate File Uploads with Reliable Hash Checks in Java

This article explains why using only file name and size to detect duplicate uploads is unreliable, demonstrates how to compute reliable file checksums in Java, and shows through experiments that identical content yields identical hashes regardless of name or type, providing a robust deduplication solution.

Hashingbackend fundamentalsduplicate detection
0 likes · 7 min read
How to Prevent Duplicate File Uploads with Reliable Hash Checks in Java
Baidu Geek Talk
Baidu Geek Talk
Nov 17, 2021 · Artificial Intelligence

Fast Video Editing: Architecture and AI‑Powered Subtitle & Redundant Segment Detection

Baidu’s Fast Editing tool automates video trimming by using NLP to recognize subtitles, tone markers and duplicate sentences, then aligns them with the timeline for one‑click removal, employing character, Levenshtein and cosine similarity algorithms within a three‑module architecture (Plugin, Window, Caption) and planning on‑device PaddlePaddle analysis to cut latency and cost.

AINLPSwift
0 likes · 11 min read
Fast Video Editing: Architecture and AI‑Powered Subtitle & Redundant Segment Detection
Xianyu Technology
Xianyu Technology
Jun 9, 2021 · Artificial Intelligence

Applying Visual AI Techniques for Image Quality and Duplicate Detection in Xianyu Marketplace

By deploying large‑scale visual AI—including a ResNet‑101 classifier, ArcFace‑trained matching features, clustering‑based sub‑category refinement, and product‑level image indexing—Xianyu’s marketplace dramatically improves image quality, removes duplicates, enhances search relevance and feed diversity, and filters non‑compliant content.

computer visiondeep learningduplicate detection
0 likes · 16 min read
Applying Visual AI Techniques for Image Quality and Duplicate Detection in Xianyu Marketplace
FunTester
FunTester
Mar 21, 2020 · Fundamentals

How to Find Duplicate Numbers in an Array in O(n) Time and O(1) Space

This article explains two algorithmic solutions for locating any duplicate number in an array of length n where values range from 0 to n‑1: a straightforward HashSet method using O(n) extra space and an in‑place swapping technique that achieves O(1) space, complete with Java and JavaScript code examples and complexity analysis.

ArrayHashSetJavaScript
0 likes · 5 min read
How to Find Duplicate Numbers in an Array in O(n) Time and O(1) Space