This document discusses various natural language processing (NLP) tools available in iOS and OSX, including CFStringTransform for text normalization, CFStringTokenizer for tokenization and language identification, UITextChecker for spell checking, NSLinguisticTagger for part-of-speech tagging and named entity recognition, and NSDataDetector for extracting structured data like dates, addresses, and phone numbers from text. It provides examples of using each tool and the type of analysis they can perform on text in various languages.

1. Tech Talk
NLP Tools in iOS/OSX
Todd Kramer

2. NLP Tools in iOS/OSX: Topics
• CFStringTransform
• transliteration, normalization
• CFStringTokenizer
• string tokenization, language identification
• UITextChecker
• spell check
• NSLinguisticTagger
• parts of speech tagging, named entity recognition,
lemmatization, language/script identification
• NSDataDetector
• data detection

3. NLP Tools in iOS/OSX: CFStringTransform
The CFStringTransform Function

4. NLP Tools in iOS/OSX: CFStringTransform
Transliterate Thai to Latin
Original: สวัสดี; Transformed: s̄wạs̄dī

5. NLP Tools in iOS/OSX: CFStringTransform

6. NLP Tools in iOS/OSX: CFStringTransform
Transliterate Latin to Gujarati
Original: Gujarātī; Transformed: ગuજરાતી

7. NLP Tools in iOS/OSX: CFStringTransform
Remove Diacritics and Accents
Original: s̄wạs̄dī; Transformed: swasdi

8. NLP Tools in iOS/OSX: CFStringTransform
Describe Unicode Characters
Original: 👍; Transformed: N{THUMBS UP SIGN}

9.
CFStringTokenizer

10. NLP Tools in iOS/OSX: CFStringTokenizer
Tokenize Into Words: Simplified Chinese
Tokens: [⼈人, ⼈人⽣生, ⽽而, ⾃自由, 在, 尊严, 和, 权利, 上, ⼀一律, 平等, 他们,
赋有, 理性, 和, 良⼼心, 并, 应, 以, 兄弟, 关系, 的, 精神, 互相, 对待]

11. NLP Tools in iOS/OSX: CFStringTokenizer
Transliterate Tokens: Simplified Chinese
Tokens: [rén, rénshēng, ér, zìyóu, zài, zūnyán, hé, quánlì, shàng, yīlv̀, píngděng, tāmén,
fùyǒu, lǐxìng, hé, liángxīn, bìng, yìng, yǐ, xiōngdì, guānxī, de, jīngshén, hùxiāng, duìdài]

12. NLP Tools in iOS/OSX: CFStringTokenizer
Language Identification: Icelandic
Language Code: is

13.
UITextChecker

14. NLP Tools in iOS/OSX: UITextChecker

15. NLP Tools in iOS/OSX: UITextChecker
Spell Check
Misspelled Range: (7,4); Guesses: Optional([ice,
Bice, bide, nice, vice, bike, bile, bite, bace, bbce,
bcce, bdce, bece, bfce, dice, lice, mice, pice, rice,
brice, bicep])
Misspelled Range: (12,3); Guesses: Optional([ay, cay,
day, say])

16.
NSLinguisticTagger

17. NLP Tools in iOS/OSX: NSLinguisticTagger
Parts of Speech Tagging and Named Entity
Recognition

18. NLP Tools in iOS/OSX: NSLinguisticTagger
NSLinguisticTagger Schemes

19. NLP Tools in iOS/OSX: NSLinguisticTagger
Parts of Speech Tagging and Named Entity
Recognition

20. NLP Tools in iOS/OSX: NSLinguisticTagger
Parts of Speech Tagging and Named Entity
Recognition
Token: What; Tag: Pronoun
Token: is; Tag: Verb
Token: the; Tag: Determiner
Token: capital; Tag: Noun
Token: of; Tag: Preposition
Token: New York; Tag: PlaceName

21. NLP Tools in iOS/OSX: NSLinguisticTagger
Script Identification

22. NLP Tools in iOS/OSX: NSLinguisticTagger
Script Identification
Token: hello; Tag: Latn
Token: สวัสดี; Tag: Thai
Token: bonjour; Tag: Latn
Token: 你; Tag: Hani
Token: 好; Tag: Hani
Token: !લો; Tag: Gujr
Token: привет; Tag: Cyrl
Token: नमस्ते; Tag: Deva

23.
NSDataDetector

24. NLP Tools in iOS/OSX: NSDataDetector
Extracting Structured Data

25. Match: Lunch tomorrow at 12:30PM;
- Date: Optional(2014-11-20 20:30:00 +0000)
Match: 1600 Pennsylvania Ave. NW, Washington, D.C.
20500;
- Street: Optional(1600 Pennsylvania Ave.);
- Zip: Optional(20500)
Match: 202-456-1414
Match: 2:15PM;
- Date: Optional(2014-11-19 22:15:00 +0000)
Match: Southwest Airlines Flight 737
Match: www.southwest.com
NLP Tools in iOS/OSX: NSDataDetector
Extracting Structured Data