wit.aiで動かす牛たんbot（ECサイトで使える汎用ボット）

下記イベントで使うプレゼン資料です。
http://everevo.com/event/31072

お店があってECサイトを運用している顧客がシンプルに実装できるテンプレボットを目指しました。

wit.aiを使って自然言語解析。解析結果をDBと連携させてユーザへレコメンド。contextを使って返答のバリエーションを豊かにしています。

Transcript

2. ࢲͷ͜ͱ
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   ϞόΠϧίϯςϯπ։ൃ
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   ઋ୆Ͱ૑ۀ
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   ιʔγϟϧήʔϜ։ൃ
   ΞόλʔϩϘοτʢ؆қ"*։ൃʣ
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   "QQ4UPSF
   ײ৘ղੳΛߦ͏ΞϓϦ։ൃ
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   *P5
   νϟοτɾϋʔυ࿈ܞΞϓϦ։ൃ
   ೥
   νϟοτϘοτ։ൃ
3. Ϊδϯגࣜձࣾͷ͜ͱ
   ୅ද͕̍̑೥Ҏ্ͷΫϥΠΞϯτϫʔΫܦݧ
   ɾ੒Ռͷग़Δاըྗ
   ɾӡӦྗʹ"*τϨʔχϯάʢϘοτΛٖਓԽʣ
   ʹڧΈΛ࣋ͭνϟοτϘοτ։ൃձࣾ
4. ࠓ೔ͷ࿩
   'BDFCPPLͷϘοτΤϯδϯXJUBJ
   ·ͩͪΌΜͱ৮ͬͨ͜ͱ͕ͳ͍ਓ޲͚
   &$αΠτ༻ϘοτΛಈ͔͢·Ͱͷཁ఺
5. ໨ࢦ͢͜ͱ
   ετʔϦʔΛ࡞੒ʢίϯςΩετʣ
   ࣗવݴޠͷղੳ݁ՌΛσʔλϕʔεͱ࿈ܞ
   ϢʔβʹϨίϝϯυ
   ༷ʑͳ&$αΠτʹԠ༻Ͱ͖ΔςϯϓϨϘοτ
6. ؀ڥ
   -".1ʢ1)1ʣ
   ͘͞ΒΫϥ΢υ ιʔγϟϧήʔϜͷϨΨγʔ؀ڥ
   1)1ͷ4%,ͳ͠ʜϥΠϒϥϦࣗ࡞PS[
7. XJUBJͷ͓͞Β͍
   'BDFCPPL
   JT
   PQFOJOH
   VQ
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   .
   QMBUGPSN
   DBMMJOH
   JU
   XJUBJ
   BOE
   MFUUJOH
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   "*
   GPS
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   BT
   B
   CPU
8. ଞͷϘοτΤϯδϯͱൺֱ ϝʔΧʔ "* "1* ྉۚ ೔ຊ ޠର GBDFCPPL . XJUBJ ແྉ ରԠ NJDSPTPGU ΓΜͳʢCJOH
   
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   .BDIJOF
   -FBSOJOHʣ ΓΜͳBQJ
   GPS
   CVTJOFTT ֹ݄ ରԠ BQJBJ ʁ BQJBJ ແྉ͋ΓΫΤϦ੍ݶ ʁ HPPHMF DMPVE
   NBDIJOF
   MFBSOJOH Ի੠ɺը૾ɺ຋༁ͷ ΈɻݱࡏϓϨϏϡʔத DMPVE͕༗ྉɺΫϥ ΢υར༻ඞਢ ʁ /55EPDPNP ʁ ࡶஊର࿩
   γφϦΦର࿩ʢαϯϓ ϧͷΈʣ
   ൃ࿩ཧղ ແྉ ରԠ /55EPDPNP ʁ 3FQM"* ʁ ରԠ DIBUCPUJP ʁ 1BOEPSBCPUT
   "1* ແྉ࿮ͳ͠ ʁ *#. XBUTPO 8BUTPO
   "1*T FWFOU݄·Ͱ ແྉ ରԠ
9. *U
   XJMM
   TUBZ
   GSFF
10. &$αΠτ༻Ϙοτͷओཁػೳ̎ͭ
12. NFSHF
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    TBZʢೖྗ಺༰ͷ֬ೝʣ
    ˣ
    FYFDVUF
    ˣ
    TBZʢ࣮ߦ݁Ռͷ֬ೝʣ ॲཧͷྲྀΕ
13. FOUJUJFT
14. 4UPSJFT
15. DPOUFYUۭཝʹεΩοϓՄೳ νϡʔτϦΞϧ୅ΘΓʹ׆༻
16. DPOUFYU
    FOUJUJFTͷ஋ΛTBZ͔FYFDVUFʹ౉͢
17. FYFDVUF
    BDUJPOͱWBMVFͰ݁ՌΛฦ͢
18. TUSVDUVSF
19. ՝୊
    ฦ౴ͷόϦΤʔγϣϯ͕গͳ͍ ຖճɺಉ͡Α͏ͳฦ౴
20. %#ʹFOUJUJFTʢDPOUFYUʣΛೖΕ͓ͯ͘
21. FYFDVUFʹDPOUFYUΛ௥Ճͯ͠TBZʹ౉͢
22. XJU্ͰϘοτͷฦ౴ʹಈతͳมԽ
23. NFTTBHF@SFRVFTUʢͳͯ͘΋ಈ͘ʣ
    ˣ
    DPOWFSTF@SFRVFTUʢॳճ໰߹ͤʣ
    ˣ
    DPOWFSTF@GPMMPXʢTUPQདྷΔ·Ͱϧʔϓʣ
    ˣ
    TUPQ ίʔυʢॲཧͷྲྀΕʣ
24. public function message_request($post) { $date = date("Ymd"); $post = urlencode($post); $url = 'https://api.wit.ai/message?v='.$date.'&q='.$post; $header = array( "Authorization: Bearer " . $this->wit_access_token ); $output = $this->curl_get($url,$header); return $output; } NFTTBHF@SFRVFTU public function curl_get($url,$header){ $curl = curl_init($url); curl_setopt($curl, CURLOPT_HTTPHEADER, $header); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); $output = curl_exec($curl); return $output; }
25. public function converse_request($post,$msg_id) { $date = date("Ymd"); $post = urlencode($post); $url = 'https://api.wit.ai/converse?v='.$date.'&q='.$post.'&session_id='.$msg_id; $header = array( "Content-Type: application/json", "Accept: application/json", "Authorization: Bearer " . $this->wit_access_token ); $output = $this->curl_post($url,$header); return $output; } DPOWFSTF@SFRVFTU public function curl_post($url,$header,$post=null){ $curl = curl_init($url); curl_setopt($curl, CURLOPT_HTTPHEADER, $header); curl_setopt($curl, CURLOPT_POST, TRUE); if ( $post ) { curl_setopt($curl, CURLOPT_POSTFIELDS, $post); } curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); $output = curl_exec($curl); return $output; }
26. public function make_entities($entities) { $i = 0; foreach( $entities as $key => $value){ if ( $i != 0 ) { $data .=','; } $value = $entities->{$key}[0]->{value}; $data .=<<<EOM "{$key}":"{$value}" EOM; $i ++; } return $data; } ෳ਺ͷFOUJUJFTʹରԠͨ͠σʔλΛੜ੒
27. public function converse_follow($entities,$msg_id) { //PHPͰ͸'͸ෆཁ $data ="{".$entities."}"; $date = date("Ymd"); $url = 'https://api.wit.ai/converse?v='.$date.'&session_id='.$msg_id; $header = array( "Content-Type: application/json", "Accept: application/json", "Authorization: Bearer " . $this->wit_access_token ); $output = $this->curl_post($url,$header,$data); return $output; } DPOWFSTF@GPMMPX
28. if ( $data ) { //̎ճ໨Ҏ߱ͷ໰߹ͤ͸STOP·Ͱ܁Γฦ͠ while ( $type != 'stop') { //ଘࡏ͢Δ৔߹ɺछผΛ൑ผ $json_converse_follow = $this->witAPI->converse_follow($data,$msg_id); $converse_follow = json_decode($json_converse_follow); //࣍ͷߦಈΛ൑ఆʢߦಈ͸̏छྨɺmsg=Ϙοτ͕࿩͢ɺaction=APIͳͲ࣮ߦ݁͠ՌΛ౉͢ɺstop=ऴྃʣ $type = $converse_follow->{type}; $confidence = $converse_follow->{confidence}; if ( $type == 'msg'){ $bot_message = $converse_follow->{msg}; $this->fbAPI->make_post_text($from_user_id,$bot_message); } elseif( $type == 'action' ){ $action = $converse_follow->{action}; $value = $json_converse->entities->{$action}[0]->{value}; $ret = $this->fb->get_payload($action,$value); if ( $ret['PAYLOAD'] ) { //DBʹ֘౰σʔλ͕͋Δ৔߹ $this->fbAPI->make_post_structure($from_user_id,$ret['PAYLOAD'],$ret['ELEMENTS']); }else{ //Ϙοτ͕஌͍ͬͯΔ୯ޠ͚ͩͲ༻్͕ͳ͍৔߹ $bot_message = '͢Έ·ͤΜ...ʮ'.$user_message.'ʯͱ͍͏ݴ༿ͷҙຯ͸ཧղ͍ͯ͠·͕͢ɺ͝ఏҊͰ͖Δ৘ใ͕͋Γ·ͤΜɻ'; $this->fbAPI->make_post_text($from_user_id,$bot_message); } //৽͍͠Entities͕͋Ε͹ૹ৴σʔλʹ௥Ճ if ( $ret['ENTITIES_VALUE']){ $data = $data . ',"'.$ret['ENTITIES'].'":"'.$ret['ENTITIES_VALUE'].'"'; } }elseif ( $type != 'stop' ){ //͍ͣΕʹ΋౰ͯ͸·Βͳ͍ //Ϙοτ͕஌͍ͬͯΔ୯ޠ͚ͩͲ༻్͕ͳ͍৔߹ $bot_message = 'ʮ' . $user_message . 'ʯͰ͢Ͷɻ͓ௐ΂͍ͨ͠·͢ɻগʑ͓଴ͪԼ͍͞ɻ'; $this->fbAPI->make_post_text($from_user_id,$bot_message); $bot_message = '͝ΊΜͳ͍͞...ʮ' . $user_message . 'ʯͱ͍͏ݴ༿ͷҙຯ͸ཧղ͍ͯ͠·͕͢ɺ͝ఏҊͰ͖Δ৘ใ͕͋Γ·ͤΜɻ'; $this->fbAPI->make_post_text($from_user_id,$bot_message); } //ແݶϧʔϓରࡦ if ( empty($converse_follow)){ break; } } }elseif( $user_message ) { //ೖྗ͸͋Δ͕ɺwitʹintent͕ͳ͍৔߹ɺڭ͑ͯ͘Εͯ͋Γ͕ͱ͏ͷ௨஌Λग़͢ɻ $bot_message = 'ʮ' . $user_message . 'ʯͰ͢Ͷɻ͓ௐ΂͍ͨ͠·͢ɻগʑ͓଴ͪԼ͍͞ɻ'; $this->fbAPI->make_post_text($from_user_id,$bot_message); $bot_message = 'ʮ' . $user_message . 'ʯ͸ɺ·ͩཧղ͍ͯ͠ͳ͍ݴ༿Ͱͨ͠ɻ͙͢ʹରԠͰ͖ΔΑ͏ษڧ͍ͨ͠·͢ɻ'; $this->fbAPI->make_post_text($from_user_id,$bot_message); }else{ //ೖྗ͕ෆ໌ͳ৔߹ɺϝχϡʔͷҊ಺ $bot_message = $this->default_message; $this->fbAPI->make_post_text($from_user_id,$bot_message); }
29. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ