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奇点来临
“奇点”本是物理学术语,原指时空中的一个普通物理规则不适用的临界点。美国未来学家雷蒙德·库兹韦尔用奇点来指电脑智能超越人脑智的那个神妙时刻。
“我认为任何一种对心灵的冲击都比不过一个发明家亲眼见证人造大脑变为现实。”
--尼古拉 特斯拉 1896
机器智能
机器智能(人工智能)是研究、开发用于模拟、延伸和扩展人的智能的理论、方法、技术及应用系统的一门新的技术科学。
机器学习
专家系统
智能搜索
智能控制
定理证明
游戏博弈
机器人学
机器视觉
自动程序设计
图像识别理解
语音识别理解
遗传编程
人工智能:机器学习
• 80、90年代的理论和算法
• 数量级增加的海量数据
• 更强大更便宜的计算能力
• 基于深度神经网的算法发明
• 分布式的随机梯度下降法
SGD等训练方法
更多的大数据 更强的硬件 更好的算法
机器学习专门研究计算机怎样模拟或实现人类的学习行为,以获取新的知识或技能。
神经网络:多层感知
输入, x
输出, y
“输入层”
“隐层”
“隐层”
“输出层”
h1 = sigmoid(A1x+b1)
h2 = sigmoid(A2h1+b2)
y = sigmoid(Aoh2+bo)
x
• 机器学习的一个分支
• 数据通过多层的非线性的转换
• 目标: 获取最有效的传递函数的转变参数
• 方法: 有监督学习与无监督学习之分等
深度学习
深度学习是基于于人工神经网络,含多隐层多层感知器的学习结构。
用户在AWS上部署AI示例
• Zillow
–Zestimate (using Apache Spark)
• Howard Hughes Corp
–Lead scoring for luxury real estate purchase
predictions
• FINRA
–Anomaly detection, sequence matching, regression
analysis, network/tribe analysis
• Netflix
–Recommendation engine
–Image recognition search
• Fraud.net
–Detect online payment fraud
• DataXu
–Leverage automated & unattended ML
at large scale (Amazon EMR + Spark)
• Mapillary
–Computer vision for crowd sourced
maps
• Hudl
–Predictive analytics on sports plays
• Upserve
–Restaurant table mgmt & POS for
forecasting customer traffic
• TuSimple
–Computer Vision for Autonomous
Driving
• Clarifai
– Computer Vision APIs
一键使用深度学习
AWS 深度学习系统镜像(Amazon Linux, Ubuntu)
接近4万个 CUDA 核
Apache MXNet
TensorFlow
Theano
Caffe
Torch
预设置 CUDA 驱动
Anaconda, Python3
+ CloudFormation 模板
+ 容器镜像
“Today in Seattle, WA, it’s 11°F”
‘"We live for the music" live from the Madison Square Garden.’
1. 自动且准确的文本处理过程
Polly: 聚焦音质和发音
2. 智能且易于理解
3. 为文本赋予语义
“Richard’s number is 2122341237“
“Richard’s number is 2122341237“电话号码
1. 自动且准确的文本处理过程
Polly: 聚焦音质和发音
2. 智能且易于理解
3. 为文本赋予语义
4. 定制式发音
“My daughter's name is Kaja.”
“My daughter's name is Kaja.”
1. 自动且准确的文本处理过程
Polly: 聚焦音质和发音
Rekognition: 对象及场景检测
Couch
Furniture
Bowl
Entertainment Center
Flower Arrangement
Plant
Vase
Floral Design
Flower
Coffee Table
Table
Indoors
Interior Design
Room
Dining Table
Apartment
Housing
Living Room
Cabinet
Fruit
97.7%
97.7%
94%
93.2%
86.4%
86.4%
86.4%
70.6%
70.6%
69.3%
69.3%
66.4%
66.4%
66.4%
58.9%
58.7%
58.7%
52%
51.9%
50.7%
Rekognition: 人脸检测
looks like a face
appears to be male
age range
smiling
appears to be happy
not wearing eyeglasses
not wearing sunglasses
eyes are open
mouth is open
does not have a mustache
does not have a beard
99.9%
99.9%
38 - 59 years old
98.3%
95.9%
99.2%
99.8%
73.2%
72.1%
87.4%
97.4%
{ "FaceMatches": [ { "Face": { "BoundingBox": { "Height": 0.2579185664653778, "Left":
0.3328912556171417, "Top": 0.23076923191547394, "Width": 0.15119363367557526 },
"Confidence": 99.64903259277344 }, "Similarity": 78 }, { "Face": { "BoundingBox":
{ "Height": 0.2398190051317215, "Left": 0.19363395869731903, "Top":
0.1538461595773697, "Width": 0.1405835598707199 }, "Confidence":
99.99935913085937 }, "Similarity": 0 } ], "SourceImageFace": { "BoundingBox":
{ "Height": 0.14034464955329895, "Left": 0.376{
"FaceMatches": [
{
"Face": {
"BoundingBox": {
"Height": 0.2579185664653778,
"Left": 0.3328912556171417,
"Top": 0.23076923191547394,
"Width": 0.15119363367557526
},
"Confidence": 99.64903259277344
},
"Similarity": 78
},
{
"Face": {
"BoundingBox": {
"Height": 0.2398190051317215,
"Left": 0.19363395869731903,
"Top": 0.1538461595773697,
"Width": 0.1405835598707199
},
"Confidence": 99.99935913085937
},
"Similarity": 0
}
],
"SourceImageFace": {
"BoundingBox": {
"Height": 0.14034464955329895,
"Left": 0.3763313591480255,
"Top": 0.1154734417796135,
"Width": 0.09349112212657928
},
"Confidence": 99.9992446899414
}
}3313591480255, "Top": 0.1154734417796135, "Width": 0.09349112212657928 },
"Confidence": 99.9992446899414 } }
"contentString": {
"Attributes": [
"ALL"
],
"TargetImage": {
"Bytes": "..."
},
"SourceImage": {
"Bytes": "..."
},
"SimilarityThreshold": 0
}
}
语音及文本“聊天机器人”
高效Alexa
在移动设备、网页及其他设备上的语音交互
使用 Slack 与 Messenger
进行文本交互企业连接器
(其他功能即将推出)Salesforce
Microsoft Dynamics
Marketo
Zendesk
Quickbooks
Hubspot
Lex: 在语音与文本之间建立自然会话式交互
Origin
Destination
Departure Date
Flight Booking
“Book a flight to
Shanghai”
Automatic
Speech Recognition
Book Flight
Shanghai
Origin
Destination
Departure Date
Flight Booking
“Book a flight to
Shanghai”
Automatic
Speech Recognition
Natural Language
Understanding
Book Flight
Shanghai
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
Shanghai Hongqiao
Origin
Destination Shanghai Hongqiao
Departure Date
Flight Booking
“Book a flight to
Shanghai”
Automatic
Speech Recognition
Natural Language
Understanding
Book Flight
Shanghai
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
Shanghai Hongqiao
Origin Beijing
Destination Shanghai Hongqiao
Departure Date
Flight Booking
“Book a flight to
Shanghai”
Automatic
Speech Recognition
Natural Language
Understanding
Book Flight
Shanghai
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
Shanghai Hongqiao
LocationLocation
Origin Beijing
Destination Shanghai Hongqiao
Departure Date
Flight Booking
“Book a flight to
Shanghai”
Automatic
Speech Recognition
Natural Language
Understanding
Book Flight
Shanghai
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
Shanghai Hongqiao
Prompt
LocationLocation
“When would you like to fly?”
Origin Beijing
Destination Shanghai Hongqiao
Departure Date
Flight Booking
“Book a flight to
Shanghai”
Automatic
Speech Recognition
Natural Language
Understanding
Book Flight
Shanghai
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
Shanghai Hongqiao
Prompt
LocationLocation
“When would you like to fly?”
“When would you like to
fly?”
Polly
Origin Beijing
Destination Shanghai Hongqiao
Departure Date
Flight Booking
“Next Friday”
“When would you like to
fly?”
Origin Beijing
Destination Shanghai Hongqiao
Departure Date
Flight Booking
“Next Friday”Automatic
Speech Recognition
Next Friday
Origin Beijing
Destination Shanghai Hongqiao
Departure Date 5/16/2017
Flight Booking
“Next Friday”Automatic
Speech Recognition
Natural Language
Understanding
Next Friday
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
5/16/2017
“Next Friday”Automatic
Speech Recognition
Natural Language
Understanding
Next Friday
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
5/16/2017
Origin Beijing
Destination Shanghai Hongqiao
Departure Date 5/16/2017
Flight Booking
“Next Friday”Automatic
Speech Recognition
Natural Language
Understanding
Next Friday
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
5/16/2017
Confirmation
“Your flight is booked for next Friday”
Origin Beijing
Destination Shanghai Hongqiao
Departure Date 5/16/2017
Flight Booking
“Next Friday”Automatic
Speech Recognition
Natural Language
Understanding
Next Friday
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
11/18/2016
“Your flight is booked for
next Friday”
Confirmation
“Your flight is booked for next Friday”Polly
Origin Beijing
Destination Shanghai Hongqiao
Departure Date 5/16/2017
Flight Booking
“Next Friday”Automatic
Speech Recognition
Natural Language
Understanding
Next Friday
Grammar
Graph
Utterances
Knowledge
Graph
Flight booking
5/16/2017
Hotel Booking
Origin Beijing
Destination Shanghai Hongqiao
Departure Date 5/16/2017
Flight Booking
Demo: Echo Dot
• Ask Questions
• Connect Bluetooth devices
• Control music
• Control smart home devices
• Enable skills
• Weather updates
• Get sport scores
• Find a place
• Listen to audible books
• Shopping
• Tell me a joke
应用开发员Amazon Rekognition
Amazon Machine Learning
Amazon Polly
Amazon Lex自然语言理解 (NLU)
& 自动语音识别 (ASR)
图像识别&分析
文本-语音转换
托管的机器学习服务
AWS Deep Learning AMI快速、轻松的使用可扩展的多种深度学习框架
数据科学家
亚马逊人工智能:AWS AI
P2AWS P2 Instance通用GPU实例
深度学习应用场景
• 个人助理
• 自动语音识别
• 自然语音处理
• 图像视频标签
• 定向广告
• 人脸识别
• 服务器监控
• 金融预测分析
• 智能投顾
• 推荐系统
• 网络侵入检测
• 欺诈侦测
云服务
金融服务
医疗卫生
汽车交通