How to design a database with tens of millions of levels?

Abstract: The core of millions and tens of millions of data processing lies in the design of the data storage solution. Whether the storage solution design is reasonable directly affects the data CRUD operation. The overall design can consider several aspects: data storage structure design; index design; data primary key design; query plan design. For […]

Space consumption in the case of large data volumes: The index file itself also takes up hard disk space and may expand to hundreds of G or even TB levels.

Author: Zen and the Art of Computer Programming 1. Introduction In recent years, with the increasing amount of data on the Internet and new changes in various business models, the application of big data has become more and more popular. Big data is indispensable in terms of economic benefits and social values. But at the […]

Multi-modal imaging technology: Multi-modal imaging technology that uses the microscope to switch between different color resolutions and levels

Author: Zen and the Art of Computer Programming 1. Introduction Currently, there are more and more equipment on the market that use microscopes for medical diagnosis, surgery and other clinical experiments, such as CT/MRI/PET, etc. The light source types of microscopes are also constantly being upgraded. However, since the manufacture, installation and use of microscopes […]

Jetson nano uses GPIO pins—Routine 1 (setting simple digital levels)

Table of contents GPIO port introduction UART,PWM,I2S,I2C How to install the GPIO library Control LED light flashing with code GPIO GPIO (General Purpose Input Output) general purpose input and output. Sometimes we will call it “IO port” for short. Universal, that is to say, it is a universal balm and can be used for anything. […]

[JESD79-5] 9 AC & DC Output Measurement Levels and Timing (AC & DC Output Measurement Levels and Timing)

9 AC & amp; DC output measurement levels and timing 9.1 Output driver DC electrical characteristics of DQS and DQ 9.2 Loopback signal LBDQS, LBDQ output drive DC electrical characteristics 9.3 Loopback output timing 9.3.1 Alert_n output drive characteristics 9.3.2 Output drive characteristics of connectivity test (CT) mode 9.4 Single-ended output level – VOL/VOH 9.5 […]

Based on the YOLOv5n/s/m model with different parameter levels, a tea bud detection and recognition model was developed and built. Pruning technology was used to lightweight the model and explore the impact of model performance under different pruning levels [continued]

Here is mainly the follow-up content of the previous blog post. A brief review: This article selects n/s/m three models of different magnitudes to build the training model in sequence. All parameters remain the same settings, and then explore different pruning methods. Performance impact under processing operations. The effect obtained by maintaining the pruning level […]

pruning+distillation realizes lightweight processing of YOLOv5. Based on three different parameter magnitude models of n/m/s, a tea bud detection model is developed and constructed to explore and analyze the impact of different pruning levels on model performance.

In my many previous blog posts, there are relatively few records about lightweight model post-processing, and most of them are project development. In fact, many previous projects have used corresponding lightweight technologies such as pruning and distillation, but they have not been used separately. For the record, I just have free time this week, so […]

Based on the YOLOv5n/s/m model with different parameter magnitudes, the tea bud detection and recognition model was developed, and the pruning pruning technology was used to lighten the model, and the performance impact of the model under different pruning levels was explored.

Today, I have some time to think about a problem left over from before. I just took it and took a look. The main purpose is to prune the trained target detection model. Here we take the tea bud detection data scene as an example. I have already introduced related practices in my previous blog […]

The four major isolation levels of practical transactions and the phenomenon of three major readings (dirty reading, non-repeatable reading, phantom reading)

Article directory 1. Transaction isolation level 2. The three major read phenomena caused by the isolation level of the transaction (dirty read, non-repeatable read, phantom read) 3. Demo Transaction (1) Demo read uncommitted (2) Demo read submitted (3) Demonstrate repeatable reading Understanding of phantom reading (4) Demonstrate serialization 1. Transaction isolation level First of all, […]