MOPCON
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    # 語言模型訓練悲慛實錄 - 李振維 {%hackmd rG6pzIawQKe5cHU4rycgYg %} > 從這開始 ## nununi + 主要用來解決 NLP 相關問題。 + 是一個 AI 產品。 ## auto tagging service + 針對產品的理解找出重要標籤。 + Embedding + Data preprocessing + Optimization tips for training embedding model + Two embedding models + Comparing Google BERT and awoo's embedding model + Our base structure + attention mechanism + Auto daily retraingin process + Distributed for training for... ## Embedding + 文字向量化 ## Data Preprocessing + 停用詞 -> 斷詞 -> embedding training ## Optimization tips (1): Filter useless data + For data source: + use "regular expression", e.g. product id, service + For embedding model: + Using stop-word mechanism to filter ## Optimization tips (2): Stop-word mechanism for training In our business case, we keep one trading-sample pre stop-word. + Benefits: + We get all the embeddings we need, including stop words. + Other words won't be badly affected by the stop words. ## Two embedding model | | Char-Level | Word-Level | | -------- | -------- | -------- | | Pros | New characters and words can be processed | For different words, there are big differences due to training | | Cons | Similar descriptions have similar vectors | 1. Must have dictionary 2. New words problem | ## awoo Embedding v.s. BERT + Google BERT: 768 dimensions + awoo Embedding Model: 128 dimensions + LM(structure) is our different new language model structures. 是什麼造成數據上的差異? 1. BERT 的訓練集跟 awoo 的訓練集不太一樣 2. BERT 不太有產業之分 ## Normal Language model + RNN / LSTM + Bi-RNN / Bi-LSTM + Self-attension ## Attention mechanism(2) + Why don't we need to use "Positional Encoding" in our model? ## Multi-Industry language model + General -> Makeup ----------> Fumiture + 而會分產業的問題最主要是因為每個產業的關鍵用詞不一樣。若說不分產業而將向量及特徵放進去則會讓其失去用詞特性。 ## Graph Understanding Model ## Automatic daily retraining process ## Others + 自建的斷詞詞庫,改良自某詞庫。改良方式為商業機密。 ## 聊天區 聊天OAO > 各位 最後一場了 OvO ![](https://i.imgur.com/mbmnrrO.png) 白龍真可愛 他是塔矢亮 不是!!!QQ是白龍 一直喊 Sai 的那位 笑死XDD > 白龍:找我?我只會下棋。 ![](https://i.imgur.com/xh2ITIR.png) 所以我說,千尋呢? > 千尋:叫我? ![](https://i.imgur.com/LvUhyKE.png) 千尋,你怎麼髒成這樣。 > 千尋:那我去洗個澡 ![](https://i.imgur.com/hdhLszC.png) > 千尋有沒有長大的樣子?XD > 叫我嗎? ![](https://i.imgur.com/nJ12xnu.png) > 荒野女巫女士大駕光臨 > 這不是千尋...還我可愛千尋QQ > 你討厭我嗎?你討厭我嗎?你討厭我嗎?...Q口Q ![](https://i.imgur.com/HpkvA7T.png) > 我覺得不行。嚶嚶嚶,嚇到我了QQ,上面明明那麼可愛。 > 你很挑耶 ![](https://i.imgur.com/EyhAhC9.png) > 那我可以嗎? ![](https://i.imgur.com/bvpwtug.png) > 這個...嗯姆姆...是我太挑嗎QQ,我相信肯定不是我的問題RRRRRR > 看來該我上場了 ![](https://i.imgur.com/XlceI16.png) > 你誰!?沒有 cue 你,下去(X > ㄍㄡˇ ? ![](https://i.imgur.com/CcoAAIV.png) > 爸爸,你怎麼...帥成這樣! > 各位明年見啦!! ![](https://i.imgur.com/iZLbEtd.jpg) 掰噗~ ###### tags: `MOPCON 2020`

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