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  Applying Large Language Models (LLMs) to Solve Cybersecurity Questions

In this document, we will introduce some test, experiment and analysis conclusion about applying Large Language Models (LLMs) to solve cybersecurity questions. Introduction Large Language Models (LLMs) are increasingly used in education and research for tasks such as analyzing program code error logs, help summarize papers and improving reports. In this project, we aim to evaluate the effectiveness of LLMs in solving cybersecurity-related questions, such as Capture The Flag (CTF) challenges, ...

       2024-09-08 04:05:07

  Why you should be careful about optimizations

In one of my current javascript projects, I have to deal with 3D voxel coordinates. And, sometimes, I have floating points coordinates which must be converted to integers in order to convert them into proper array index. Javascript is a wonderful language, really. However, implementations are sometimes weird, and the way to do something can sometimes have very huge impacts on the performances. Worse, sometimes the classical way is more expensive than the tricky one. So, some peo...

   JavaScript,Bitwise,Floor,Trick,Optimization     2012-05-02 11:29:20

  MySQL Index Merge Optimization Practices

In production environment databases, it is often seen that some SQL where conditions include: equal condition on a normal index + primary key range query + order by limit Although using a normal index would be more efficient, the system chooses to use index merge instead in some cases. This article explores such index merge situations. Index Merge Official Introduction   The Index Merge access method retrieves rows with multiple range scans and merges their results into one. Generall...

   INDEX MERGE,MYSQL,PRIMARY INDEX,SECONDARY INDEX     2024-09-10 04:52:26

  Pandora's killer--iTunes Radio

As expected, this year's WWDC may make many people happy, but also doomed to make many start-up companies sleepless. iTunes Radio is such a product creates insomnia. In WWDC, iTunes Radio was released on schedule and it becomes Apple's new music service. iTunes Radio is a music stream service which can learn your taste, it can recommend your music based on what you heard and you're listening to. From the conference we can see this new service can access the entire iTunes catalog, i.e, there wil...

   iTunes Radio,iRadio,Apple     2013-06-10 23:19:23

  Remove the Small Arrow on Desktop Application Shortcut on Windows

Maybe many of us have seen a small arrow on desktop application shortcut after we install the application on Windows. Some may like it but some people may think it doesn't look beautiful enough. We may need to remove these small arrows somehow the desktop can be clean. So how?       Many people may use a third party software to remove the small arrow, then they must go to download the software and install them. But do we necessary do this in order to remove the small arrow?The a...

   SMALL ARROW,SHORTCUT,DESKTOP,APPLICATION,WINDOWS     2014-10-25 08:39:58

  Microsoft is attacking iPad again

Microsoft recently released a new advertisement on YouTube which attacked iPad. It aimed to show that iPad had a poorer performance in the classroom than Windows Tablet.Steve Jobs once said that iPad could liberate student's shoulder, students no longer need to carry their heavy school bags to the class. But from Microsoft's perspective, although iPad is lighter than student's school bag, the problem is that its performance in the classroom is not so satisfying. In Microsoft's advertisement, af...

   Windows 8,iPad,Advertisement     2013-08-20 05:14:29

  Why does Symbian collapse?

On 24th January, Nokia announces a disappointing news that they would give up Symbian. The 808 PureView released last year will be its last Symbian model.  Symbian was born in 1998, it was supported by the then three mobile giants : Sony Ericson, Motorola and Nokia after its birth, later Samsung and LG also joined the Symbian camp. In 2000, the first Symbian model in the world Ericoson R380 was released, in 20006, there were over 100 million Symbian handphones on the market. But in 2007, t...

   Nokia, Symbian, Collapse, Analysis     2013-01-28 03:06:09

  Regular expression to get html meta description

When we need to process a HTML page source code, we often need to retrieve the meta description of the page besides the links in the page. This description is usually located in <meta> tag of a HTML page. The meta description is very useful for search engine index. How can we retrieve the meta description? If we use a regular expression, we can easily get the meta description. In JavaScript, the regular expression looks like : var pattern = /<meta.*?name="description".*?content="(.*?)"....

   Regular expression,meta description,HTML,JavaScript     2012-07-03 10:09:20

  How MySQL optmizes ORDER BY

In some situations, MySQL will just use an index to fulfill the requirement of an ORDER BY or GROUP BY statement without extra sorting. Although ORDER BY will not have the exact match with index, index can still be used as long as the portion that is not included in the index is included in the where clause. The following queries will all use index to process the ORDER BY or GROUP BY part: SELECT * FROM t1 ORDER BY key_part1,key_part2,... ;SELECT * FROM t1 WHERE key_part1=constant ORDER BY key_p...

   MySQL,index,ORDER BY,optimization     2012-11-13 11:01:05

  3 Most Popular Ways Hackers Steal Your Phone Data – Stay Safe

Our mobile devices store personal information, including passwords, usernames, birthdates, financial information, social security numbers, PIN, etc. Hence, this makes hacking a mobile phone an attractive option for hackers and scammers. There are various techniques that hackers use to spy on a mobile phone for personal information. Also, stalkers can make use of spy apps and malicious software to spy on unsuspecting people. Mobile phones are not secure because these devices connect to other net...

   TECH     2019-11-29 00:29:40

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