Artificial Intelligence - هوش مصنوعی  
انجمن را در گوگل محبوب کنيد :

بازگشت   Artificial Intelligence - هوش مصنوعی > داده کاوی > پردازش و کاوش متن( Text Mining and processing )


 
تبليغات سايت
Iranian Association for the Advancement of Artificial Intelligence
ارسال تاپيک جديد  پاسخ
 
LinkBack ابزارهاي تاپيک نحوه نمايش
قديمي ۰۶-۲۹-۱۳۹۱, ۰۳:۲۲ بعد از ظهر   #1 (لینک دائم)
عضو فعال
 
آواتار kingofworlds63
 
تاريخ عضويت: اسفند ۱۳۸۹
پست ها: 15
تشكرها: 2
0 تشكر در 0 پست
پيش فرض Tokenization

با سلام
دوستان من در حال نوشتن پايان نامه هستم و براي متن پايان نامه نياز به تعريف تقريبا 1 صفحه اي از Tokenization دارم
اگر كسي كمكم كنه ممنون ميشم
kingofworlds63 آفلاين است   پاسخ با نقل قول

  #ADS
نشان دهنده تبلیغات
تبليغگر
 
 
 
تاريخ عضويت: -
محل سكونت: -
سن: 2010
پست ها: -
 

نشان دهنده تبلیغات is online  
قديمي ۰۷-۴-۱۳۹۱, ۰۹:۰۶ قبل از ظهر   #2 (لینک دائم)
عضو فوق فعال
 
آواتار nazliii
 
تاريخ عضويت: مرداد ۱۳۹۱
پست ها: 72
تشكرها: 36
23 تشكر در 19 پست
پيش فرض

نقل قول:
نوشته اصلي بوسيله kingofworlds63 نمايش پست
با سلام
دوستان من در حال نوشتن پايان نامه هستم و براي متن پايان نامه نياز به تعريف تقريبا 1 صفحه اي از Tokenization دارم
اگر كسي كمكم كنه ممنون ميشم

Tokenization is the process of breaking a stream of text up into words, phrases, symbols, or other meaningful elements called tokens. The list of tokens becomes input for further processing such as parsing or text mining. Tokenization is useful both in linguistics (where it is a form of text segmentation), and in computer science, where it forms part of lexical analysis.
[edit]Methods and obstacles

Typically, tokenization occurs at the word level. However, it is sometimes difficult to define what is meant by a "word". Often a tokenizer relies on simple heuristics, for example:
All contiguous strings of alphabetic characters are part of one token; likewise with numbers.
Tokens are separated by whitespace characters, such as a space or line break, or by punctuation characters.
Punctuation and whitespace may or may not be included in the resulting list of tokens.
In languages that use inter-word spaces (such as most that use the Latin alphabet, and most programming languages), this approach is fairly straightforward. However, even here there are many edge cases such as contractions, hyphenated words, emoticons, and larger constructs such as URIs (which for some purposes may count as single tokens). A classic example is "New York-based", which a naive tokenizer may break at the space even though the better break is (arguably) at the hyphen.
Ancient Greek was often written in scriptio continua, with no spaces between words.
Tokenization is particularly difficult for languages such as Chinese which have no word boundaries.[1]
Some ways to address the more difficult problems include developing more complex heuristics, querying a table of common special-cases, or fitting the tokens to a language model that identifies collocations in a later processing step.
A deeper form or Tokenization is MicroTokenization or Micro-Tokenization. Micro-Tokenization is defined as deep, pinpoint, individualized processing of data combined with various proprietary AES algorithm designs up to and including 1024-bit cipher keys tokenizing the data up to 2 GB in size, without utilizing any of the original sensitive data to derive the token from while preserving speed, security, and portability. Micro-Tokenization techniques are the newest method of information security and innovative methodology for data protection. It has evolved data protection technology to new levels never before accomplished. It works off an entirely different premise. Just the opposite of “Bulk Encryption”, the MicroTokenization approach protects sensitive data individually, even down to the “Byte” level if that is what is desired and or programmed. Micro-Tokenization maintains speed and accessibility while providing the highest level of security known to the public sector. This modular technology is completely scalable, adaptable, and accessible, and has been designed to meet future needs and evolve with the new best practices in the security world. The core elements of the technology follow along with long enforced and tried methods used by the US Armed Forces and technology powerhouses, but put together in a new innovative and proprietary way. By Micro-Tokenizing data, the data remains both usable while simultaneously exceeding industry security standards as well as regulation
nazliii آفلاين است   پاسخ با نقل قول
پاسخ



كاربران در حال ديدن تاپيک: 1 (0 عضو و 1 مهمان)
 

قوانين ارسال
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is فعال
شکلکها فعال است
كد [IMG] فعال است
كدهاي HTML غير فعال است
Trackbacks are فعال
Pingbacks are فعال
Refbacks are فعال




زمان محلي شما با تنظيم GMT +3.5 هم اکنون ۱۱:۱۵ بعد از ظهر ميباشد.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.1.0 ©2007, Crawlability, Inc.

Teach and Learn at Hexib | Sponsored by www.Syavash.com and Product In Review

استفاده از مطالب انجمن در سایر سایت ها، تنها با ذکر انجمن هوش مصنوعي به عنوان منبع و لینک مستقیم به خود مطلب مجاز است

Inactive Reminders By Icora Web Design