Tag：algorithm
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Time：2020-4-3
The spark pipeline API is inspired by scikit learn and aims to simplify the creation, tuning and validation of machine learning processes.Ml pipeline usually consists of the following stages: Data preprocessing feature extraction Creation of algorithm model and fitting of model parameters Verification The phases of ML pipeline are implemented by a series of converters […]
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Time：2020-4-2
Redis memory recovery mechanism Redis’s memory recovery mainly focuses on the following two aspects: 1. Redis expiration policy: delete key value of expiration time 2. Redis elimination strategy: memory knockout data triggered when memory usage reaches maxmemory upper limit Redis’s expiration strategy and memory obsolescence strategy are not one thing. Don’t confuse them in actual […]
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Time：2020-4-2
Website: https://algorithm-visualizer The page after entering is the code farm style familiar to programmers: Suppose I want to learn the bubble sort algorithm, enter sort in the search column, and select bubble sort in the result list: After clicking, the sorting operation is in ready state. Click play to start: At this time, the JavaScript […]
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Time：2020-4-1
2020 should have been a “love you, love you” Year! But becauseBlack swanIt has a great impact on us! 1、 Analysis of IOS recruitment data in 2020 This is March 2020BOSS direct employmentData of the first few pages of IOS recruitment in Beijing Salary and remuneration Number of Posts Age requirement company size About 15K […]
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Time：2020-3-31
On Thursday, Alibaba announced part of the information of Apache Flink, a new version of big data processing engine, at the Flink forward Asia 2019 conference, and announced the official open-source machine learning platform alink based on Flink. According to the official introduction, the new Flink 1.10 version has received all the functions of blink, […]
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Time：2020-3-31
1. Hashlib password hash The hashlib module defines an API to access different cryptographic hashing algorithms. To use a specific hash algorithm, create a hash object with the appropriate constructor function or new(). No matter which specific algorithm is used, these objects use the same API. 1.1 hash algorithm Because hashlib has OpenSSL to provide […]
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Time：2020-3-30
Given an integer array nums, find a continuous subarray with the largest sum (subarray contains at least one element), and return its maximum sum. Example: Input: [- 2,1, – 3,4, – 1,2,1, – 5,4],Output: 6Explanation: the sum of continuous subarrays [4, – 1,2,1] is the largest, which is – 6.Advance: If you have implemented the […]
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Time：2020-3-30
This article is from oppo Internet technology team. If you need to reprint it, please indicate the source and author. Welcome to our official account: OPPO_tech Graph theory is one of the most important and interesting branches of computer science. For business scenarios with topological relationships, understanding and using graphs can help businesses a lot. […]
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Time：2020-3-29
Three cache elimination algorithms (LFU, LRU, FIFO) 1. FIFO is a simple queue, first in, first out.2. LRU is the least recently used, and priority is given to removing the longest unused data. Is the time dimension.3. LFU is the least commonly used data recently, and the data with the least number of accesses is […]
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Time：2020-3-29
Give into deep learning, in-depth learning has always been a hot topic in the audio and video industry. Here are 10 free quality online courses recommended.We recommend you to open source project class central, which has 31 online courses (10 of which are completely free), covering from the foundation of in-depth learning to the most […]
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Time：2020-3-28
Since I took over the NLP algorithm team of cro line at the end of January 2019, some thoughts on team building, capacity building and management are all subjective judgments without scientific demonstration, but they have been put into practice. I don’t have any background knowledge of management. I write my humble opinions out shamelessly […]
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Time：2020-3-26
With the last spring breeze blowing, the air filled with the taste of summer, it’s time to roll to learn.Recently, learning redis, I found a funny thing called the bloon filter. But my level is not enough to study the source code, so I write a simple play. principle Please forgive me for teaching. I […]
