Tag：Data Volume
-
Time：2020-7-7
We all know that the efficiency of like is very low, and large amount of data will be very slow. Today, we found a built-in function instr() which is more efficient than like SELECT * FROM msg_list WHERE title LIKE ‘%Lee%’ It can be replaced by: SELECT * FROM msg_list WHERE INSTR(title,’Lee’) > 0 The […]
-
Time：2020-6-30
This article will be a long article, is a general description of machine learning related content, will summarize some of the key problems in the previous three examples, read this article will have a more profound and comprehensive understanding of machine learning, so let’s start. In the previous three articles, we introduced the binary classification […]
-
Time：2020-6-25
Today, I used hssfworkbook of npoi to export excel, but the file was damaged or the extension was wrong. Later, I found that the suffix was only “XLS”. Npoi is only the implementation version of Java POI, so the differences of hssfworkbook, xssfworkbook and sxssfworkbook are the same in npoi. From: https://blog.csdn.net/YiQ2018/article/details/81458149 When we export […]
-
Time：2020-6-16
1 what is kylin Today, with the rapid rise of mobile Internet, Internet of things, AI and other technologies, data has become the most important and valuable “asset” behind all these technologies. How to get valuable information from data? This problem drives the development of related technologies, from the initial file based retrieval and analysis […]
-
Time：2020-6-16
Wen Peng, architect of datapipeline In the era of big data, real-time job plays an increasingly important role. This article will explain the real-time data flow practice of datapipeline in big data platform from the following parts. 1、 Main problems and challenges of enterprise data 1. Data volume is increasing With the rapid development of […]
-
Time：2020-6-8
https://blog.csdn.net/biww620/article/details/73003880 Directory is the best example of index. Each directory contains the title and page number of the corresponding chapter. Each index entry of analogy index contains some key value combinations of data records and contains the access path (ROWID) of the corresponding data block. The existence of directory is to quickly locate the […]
-
Time：2020-5-29
In the last article, we talked about using a method in the pre training network, feature extraction. Today we discuss another method, fine-tuning model, which is also a method of migration learning. Fine tune the model Why do I need to fine tune the model? We speculate that with the previous experiments, we have such […]
-
Time：2020-5-23
Company introduction As the world’s leading AI and medical big data platform, zero krypton technology has the largest medical big data resource base and the most advantageous technical support service system in China. Over the years, zero krypton technology, relying on its core technology advantages in the integration, processing and analysis of medical big data […]
-
Time：2020-5-20
Comparative conclusion 1. Performance: The performance is excellent. To be specific, because redis only uses a single core and memcached can use multiple cores, the average performance of redis on each core is higher than memcached when storing small data. Among the data above 100k, the performance of memcached is higher than that of redis. […]
-
Time：2020-5-18
The author introduces: Kang Wenquan, senior R & D Engineer of consumer finance general ledger. Li Yinlong, former Tencent cloud operation and maintenance engineer, head of cloud tidb of consumer financial container, and tug leader in Southwest China. Background Immediate consumer finance opened in June 2015. As of January 2020, after more than four years […]
-
Time：2020-5-16
The vast majority of forms have no more than 15 columns. If you have more than 15 fields, you should consider vertical table splitting and data splitting according to the business, which can not only ensure the clarity of business data, but also reduce the pressure of single table reading and writing Select the correct […]
-
Time：2020-5-9
Company introduction Mobikok (coco network), founded in 2013, is a fast-growing mobile internet marketing company focusing on mobile ECPM marketing. Headquartered in Shenzhen, China, it focuses on the overseas traffic realization business of subscribing to offer. The interface provided by mobikok supports all kinds of mobile terminal traffic (API, SDK, SmartLink), and RTB (real-time bidding […]
