TextClassifier

TextClassifier

TextClassifier-Sample
https://github.com/operando/TextClassifier-Sample

Shibuya.apk #34 - Report from Google I/O 2019
https://shibuya-apk.connpass.com/event/128668/

Transcript

1. TextClassifier
   Shibuya.apk #34
   

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2. TextClassifier
   • Oreo(API level 26)͔Β௥Ճ͞ΕͨAPI
   • ςΩετ෼ྨثͷͨΊͷAPI
   • ෼ྨʹ͸ػցֶशͷϞσϧ͕࢖ΘΕ͍ͯΔ
   

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3. Smart Linkify
   • Android P͔Β
   • TextClassifierΛར༻ͯ͠Δ
   • https://developer.android.com/about/versions/pie/
   android-9.0#text
   • Smart Text SelectionͷਐԽ൛ʁ
   • https://www.youtube.com/watch?
   v=Y2VF8tmLFHw&t=4832
   

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4. Smart Linkify
   • TextViewͱWebViewͰબ୒ΛONʹ͢Ε͹
   TextClassifierΛ࢖༻ͨ͠Smart Linkify͕

   ಈ࡞͢Δ
   

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5. Smart Linkifyͷৄࡉ
   • The Machine Learning Behind Android
   Smart Linkify
   • https://ai.googleblog.com/2018/08/the-
   machine-learning-behind-android.html
   

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6. TextClassifierͷػೳ
   • TextClassification
   • TextLinks
   • TextSelection
   • TextLanguage(Q API)
   • ConversationActions(Q API)
   

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7. TextClassification
   • ࢦఆ͞ΕͨςΩετΛ෼ྨ͠ɺ෼ྨ͞Εͨς
   ΩετΛॲཧ͢ΔͨΊͷ΢ΟδΣοτΛੜ੒
   ͢ΔͨΊʹ࢖༻Ͱ͖ΔTextClassification
   objectΛฦ͢
   

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8. TextLinks
   • ϦϯΫʹ஫ऍΛ෇͚ΔͨΊʹςΩετʹద༻
   ͞ΕΔTextLinksΛੜ੒
   

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9. TextSelection
   • ςΩετબ୒ͷ։࢝ҐஔͱऴྃҐஔɺೝࣝ͞
   Ε͍ͯΔΤϯςΟςΟͷछྨɺ͓ΑͼͦΕΒ
   ʹؔ࿈͢Δ৴པείΞΛฦ͢
   

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10. TextLanguage
    • ࢦఆ͞ΕͨςΩετͷݴޠΛݕग़
    

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11. ConversationActions
    • ༩͑ΒΕͨձ࿩ʹैͬͯΞΫγϣϯͷϦετ
    ΛఏҊ
    

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12. DEMO
    

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13. TextSelection
    GlobalScope.launch(Dispatchers.Main) {
    val tcm =
    getSystemService(TextClassificationManager::class.java)
    val ts: TextSelection = async {
    tcm.textClassifier.suggestSelection(
    TextSelection.Request.Builder(
    "GoogleͷαΠτURL:https://google.com"
    ,21,32).build())
    }.await()
    findViewById(R.id.result).text = ts.toString()
    }
    

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14. TextLanguage
    GlobalScope.launch {
    val tcm = getSystemService(
    TextClassificationManager::class.java)
    val tlr = TextLanguage.Request.Builder(text).build()
    val textLanguage = async
    { tcm.textClassifier.detectLanguage(tlr) }.await()
    findViewById(R.id.result).text =
    textLanguage.toString()
    }
    

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15. TextLanguage
    GlobalScope.launch {
    val tcm = getSystemService
    (TextClassificationManager::class.java)
    val tlr = TextLanguage.Request.Builder(text).build()
    val textLanguage = async
    { tcm.textClassifier.detectLanguage(tlr) }.await()
    val s = textLanguage.getConfidenceScore(
    ULocale.JAPANESE)
    }
    

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16. TextClassifier Sample
    https://github.com/operando/
    TextClassifier-Sample
    

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17. AndroidX Textclassifier
    https://developer.android.com/
    jetpack/androidx/releases/
    textclassifier
    

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18. ಠࣗTextClassifierΛ࣮૷ͯ͠Δྫ
    • https://search.siprop.org/android-9.0.0_r1.0/xref/
    packages/apps/DocumentsUI/src/com/android/
    documentsui/inspector/
    GpsCoordinatesTextClassifier.java
    • TextView#setTextClassifierͰηοτ
    • https://developer.android.com/reference/android/
    widget/
    TextView#setTextClassifier(android.view.textclassifier.
    TextClassifier)
    

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19. Implementing Text Classification
    • OEMͰ࢖͏Ϟσϧͱ͔ΛมߋͰ͖Δͷ͔ͳʁ
    • ඞཁʹԠ͡ͰϞσϧͷߋ৽ͱ͔΋Ͱ͖ͦ͏ʁ
    • https://source.android.com/devices/tech/
    display/textclassifier
    

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20. TextClassifierΛѻͬͨϒϩά
    • https://blog.stylingandroid.com/
    textclassification-part-1/
    • https://blog.stylingandroid.com/
    textclassification-part-2/
    • https://blog.stylingandroid.com/
    textclassification-part-3/
    

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21. Thanks!
    

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