Article:

Dealing with Imbalanced Data

Imbalanced classes are a common problem in machine learning classification where there are a disproportionate ratio of observations in each class. Class imbalance can be found in many different areas including medical diagnosis, spam filtering, and wildfire detection.

 

當AI顛覆傳統銀行服務，金融從業者該具備的4大關鍵特質

金融科技的新創公司正在重新定義今日甚至明日的金融產業，客戶也不再執著於傳統銀行，或是科技公司才能提供金融服務，只要用得順手又安全，那就值得一試。

 

AI計算藏驚人“黑洞”：15萬美元多跑0.1分，大型AI研究被批無視能耗成本

越來越強大的AI模型正在改變這個世界。但這背後便宜。近日，著名的AI研究機構AI研究所（AI2）發布一份新的的立場文件，呼籲評估在評估AI研究時應該更加重視能效，在開發，訓...

 

Automated Feature Engineering in Python

Machine learning is increasingly moving from hand-designed models to automatically optimized pipelines using tools such as H20, TPOT, and auto-sklearn. These libraries, along with methods such as random search, aim to simplify the model selection and tuning parts of machine learning by finding the best model for a dataset with little to no manual intervention. However, feature engineering, an arguably more valuable aspect of the machine learning pipeline, remains almost entirely a human labor.

 

Hadoop迎來3.x時代，昔日大數據霸主如何應對雲計算的挑戰？

Scalability 指是指Hadoop的分佈式文件系統HDFS仍然有提高擴展性的需求和空間，會詳細.. Cloud也是一個非常重要的方向，雲上的對象存儲甚至有取代 HDFS成為雲端大數據儲存所以趨勢，所以HDFS如......

 

How a quantum computer could break 2048-bit RSA encryption in 8 hours

A new study shows that quantum technology will catch up with today’s encryption standards much sooner than expected. That should worry anybody who needs to store data securely for 25 years or so.

 

Settling the edge computing vs. cloud computing debate

The press is attempting to pit edge computing against cloud computing, but the two will never be mutually exclusive

 

How Sharing Economy Platforms Keep Users Secure With Authentication

The sharing economy is a two-way street that operates on trust between suppliers and customers, and that trust is even more important for high-value exchanges like home shares. A homeowner wants to properly vet a potential guest and the guest also needs assurance that everything is on the level.

 

Amazon’s AI reduces real-time speech recognition error rate by 6.2%

Automatic speech recognition systems like those at the core of Alexa convert speech into text, and one of their components is a model that predicts which word will come after a sequence of words. They’re typically n-gram based, meaning they suss out the probability of next words given the past n-1 words. But architectures like recurrent neural networks, which are commonly used in speech recognition because of their ability to learn long-range dependencies, are tough to incorporate into real-time systems and often struggle to ingest data from multiple corpora.

 

「旗艦手機、內建錢包、開發套件」三星將於 10 月開發者大會，強勢佈局區塊鏈市場

韓國科技巨頭三星，開始專注在區塊鏈的技術開發。在2019年10月底即將舉辦的開發者大會中，將與廣邀而來的眾多開發者、技術人員等各領域專家，共同研討新產品與服務。

 

台灣數位產權新創 Bitmark 完成 300 萬美元 A 輪融資，投資人包括宏達電、阿里巴巴

數位產權新創 Bitmark 在昨日完成由宏達電領投的 300 萬美元的 A 輪融資，投資者還包括電商巨頭阿里巴巴、風投公司美國中經合集團、區塊鏈創投 DCG。

 

四大會計 PwC 盧森堡：開始接受客戶用「比特幣支付」

四大會計 PwC 盧森堡於今年9月，在官方新聞稿釋出消息表示，自10月1號開始該公司將接受客戶的比特幣支付，而新聞稿另提到 PwC 資誠會計師事務所，將在未來提出更完善的加密審計解決方案、與該品牌的區塊鏈產品。

 

比特幣一枝獨秀，價格攀升 6 ％ 再度回歸萬點，市值佔比「超過70％」

比特幣單日上漲 6.29%，微幅帶動了整體密碼貨幣市場，也讓比特幣站上了日 K 的 30 EMA，但比特幣仍尚未突破下降趨勢線。

 

印度 GDP 成長趨緩，高階白領有 10% 想要在未來「增加加密資產配比」

印度今年的 GDP 成長放緩，胡潤百富的報告指出，高達 36% 的印度高淨值資產人士對未來三年的投資決策將趨向避險。報告指出，目前高淨值資產人士中，有近 10% 的願意在未來三年提高密碼貨幣的資產配比。

 

VanEck 和 SolidX 在美國上線了一檔「比特幣 ETF」，只開放「機構客戶」購買

投資管理公司 VanEck Securities Corp. 和 SolidX Management 將在明天開始提供「限量版」的比特幣 ETF，讓合規的機構投資人購買，但是一般投資人還要再等等。

 

「拯救亞馬遜大火」——雨林基金會向加密社群求援，捐助比特幣加入#CryptoFireFighter

一個在中南美洲深耕多年的非營利組織，正在為連燒好幾週的亞馬遜森林大火，向加密社群募集加密貨幣作為援助資金。

 

Video:

Quantum Computing Expert Explains One Concept in 5 Levels of Difficulty

Gradient Descent / Newton's Method

Mahalanobis Distance - intuitive understanding

Second Order Optimization

Principal Component Analysis (PCA), Step-by-Step

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