https://github.com/dblock/objc-ngram
Rudimentary ngram search in ObjectiveC.
https://github.com/dblock/objc-ngram
Last synced: 9 months ago
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Rudimentary ngram search in ObjectiveC.
- Host: GitHub
- URL: https://github.com/dblock/objc-ngram
- Owner: dblock
- License: mit
- Created: 2014-02-26T19:39:00.000Z (over 12 years ago)
- Default Branch: master
- Last Pushed: 2014-03-29T16:20:43.000Z (about 12 years ago)
- Last Synced: 2024-05-09T20:09:51.817Z (about 2 years ago)
- Language: Objective-C
- Size: 753 KB
- Stars: 15
- Watchers: 3
- Forks: 3
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
Awesome Lists containing this project
README
# objc-ngram
[](https://travis-ci.org/dblock/objc-ngram)
[](http://cocoadocs.org/docsets/objc-ngram)
[](http://cocoadocs.org/docsets/objc-ngram)
## Demo
To run the example project, run `pod try objc-ngram`.
The demo loads [sentences.txt](Demo/Data/sentences.txt) and lets you search for free-formed text in it.
## Installation
objc-ngram is available through [CocoaPods](http://cocoapods.org), to install it add the following line to your Podfile:
pod "objc-ngram"
## Usage
Import `OCNDictionary`.
``` objc
#import
```
Create an `OCNDictionary` and add objects to it with a given key. The key must be a string and is split into 3-grams.
``` objc
OCNDictionary *dict = [OCNDictionary dictionary];
[dict addObject:@"red brown fox" forKey:@"red brown fox"];
[dict addObject:@"white big bear" forKey:@"white big bear"];
[dict addObject:@"hiding rabbit" forKey:@"hiding"];
NSArray *results = [dict matchObjectsForKey:@"white fox"];
for (OCNObjectScore *result in results) {
NSLog(@"'%@' has a score of %f", result.object, result.score);
}
```
This will output the following.
```
'white big bear' has a score of 1.416667
'red brown fox' has a score of 0.181818
```
You can create a `OCNDictionary` with a different n-gram size.
``` objc
OCNDictionary *dict = [OCNDictionary dictionaryWithNgramWidth:4];
```
## Contributing
See [CONTRIBUTING](CONTRIBUTING.md).
## License
The objc-ngram library is available under the MIT license. See the LICENSE file for more info.