web performance optimization: analytics › sites › wimleers.com › files › literature... ·...
TRANSCRIPT
![Page 1: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/1.jpg)
Web Performance Optimization: Analytics
Wim Leers
Promotor: Prof. dr. Jan Van den Bussche
![Page 2: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/2.jpg)
Web Performance Optimization
• Speed matters!
Source: http://www.useit.com/alertbox/response-times.html, Jakob Nielsen, June 21, 2010
![Page 3: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/3.jpg)
Web Performance Optimization
• Speed matters!
• 0.1 s → direct manipulation
Source: http://www.useit.com/alertbox/response-times.html, Jakob Nielsen, June 21, 2010
![Page 4: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/4.jpg)
Web Performance Optimization
• Speed matters!
• 0.1 s → direct manipulation
• 1 s → good navigation
Source: http://www.useit.com/alertbox/response-times.html, Jakob Nielsen, June 21, 2010
![Page 5: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/5.jpg)
Web Performance Optimization
• Speed matters!
• 0.1 s → direct manipulation
• 1 s → good navigation
• 10 s → attention kept
Source: http://www.useit.com/alertbox/response-times.html, Jakob Nielsen, June 21, 2010
![Page 6: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/6.jpg)
Web Performance Optimization
• Speed matters!
• 0.1 s → direct manipulation
• 1 s → good navigation
• 10 s → attention kept
• >10 s → bye bye!
Source: http://www.useit.com/alertbox/response-times.html, Jakob Nielsen, June 21, 2010
![Page 7: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/7.jpg)
How to Measure? Episodes
![Page 8: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/8.jpg)
How to Measure? Episodes
• Measures “episodes” during page loading
![Page 9: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/9.jpg)
How to Measure? Episodes
• Measures “episodes” during page loading
• Real measurements: JS in browser, for each visitor
![Page 10: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/10.jpg)
How to Measure? Episodes
• Measures “episodes” during page loading
• Real measurements: JS in browser, for each visitor
• Result: Episodes log file
![Page 11: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/11.jpg)
Analytics
![Page 12: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/12.jpg)
Analytics
• Automatically pinpoint causes of slow page loads
![Page 13: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/13.jpg)
Analytics
• Automatically pinpoint causes of slow page loads
• e.g.:
![Page 14: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/14.jpg)
Analytics
• Automatically pinpoint causes of slow page loads
• e.g.:
• “http://uhasselt.be/ is slow in Belgium, for users of the ISP Telenet”
![Page 15: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/15.jpg)
Analytics
• Automatically pinpoint causes of slow page loads
• e.g.:
• “http://uhasselt.be/ is slow in Belgium, for users of the ISP Telenet”
• “http://uhasselt.be/studenten/dossier has slowly loading CSS”
![Page 16: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/16.jpg)
Analytics
• Automatically pinpoint causes of slow page loads
• e.g.:
• “http://uhasselt.be/ is slow in Belgium, for users of the ISP Telenet”
• “http://uhasselt.be/studenten/dossier has slowly loading CSS”
• “http://uhasselt.be/bib has slowly loading JS in Firefox 3”
![Page 17: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/17.jpg)
Analytics
• Automatically pinpoint causes of slow page loads
• e.g.:
• “http://uhasselt.be/ is slow in Belgium, for users of the ISP Telenet”
• “http://uhasselt.be/studenten/dossier has slowly loading CSS”
• “http://uhasselt.be/bib has slowly loading JS in Firefox 3”
• …
![Page 18: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/18.jpg)
Literature Study Subjects
![Page 19: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/19.jpg)
Literature Study Subjects
• Data Stream Mining
![Page 20: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/20.jpg)
Literature Study Subjects
• Data Stream Mining
• Anomaly Detection
![Page 21: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/21.jpg)
Literature Study Subjects
• Data Stream Mining
• Anomaly Detection } Data Mining: finding patterns in data
![Page 22: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/22.jpg)
Literature Study Subjects
• Data Stream Mining
• Anomaly Detection
• OLAP: Data Cube
} Data Mining: finding patterns in data
![Page 23: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/23.jpg)
Literature Study Subjects
• Data Stream Mining
• Anomaly Detection
• OLAP: Data Cube
} Data Mining: finding patterns in data
} OLAP: querying multidimensional data
![Page 24: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/24.jpg)
Data Stream Mining
![Page 25: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/25.jpg)
Data Stream Mining
• Constraints
![Page 26: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/26.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
![Page 27: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/27.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
• Window model
![Page 28: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/28.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
• Window model
- Landmark: from beginning until now
![Page 29: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/29.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
• Window model
- Landmark: from beginning until now
- Tilted-time: per-hour window, 24 “hour windows” → “day window”, etc.
![Page 30: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/30.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
• Window model
- Landmark: from beginning until now
- Tilted-time: per-hour window, 24 “hour windows” → “day window”, etc.
• Algorithms studied
![Page 31: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/31.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
• Window model
- Landmark: from beginning until now
- Tilted-time: per-hour window, 24 “hour windows” → “day window”, etc.
• Algorithms studied
• Frequent Item Mining: 7
![Page 32: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/32.jpg)
Data Stream Mining
• Constraints
• Possibly infinite data stream ⇒ approximation
• Window model
- Landmark: from beginning until now
- Tilted-time: per-hour window, 24 “hour windows” → “day window”, etc.
• Algorithms studied
• Frequent Item Mining: 7
• Frequent Pattern Mining: 2
![Page 33: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/33.jpg)
Data Stream Mining: FP-Stream
Source: Mining Frequent Patterns in Data Streams at Multiple Time Granularities, Giannella; Han et al., 2003
![Page 34: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/34.jpg)
Data Stream Mining: FP-Stream
Source: Mining Frequent Patterns in Data Streams at Multiple Time Granularities, Giannella; Han et al., 2003
![Page 35: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/35.jpg)
Data Stream Mining: FP-Stream
Source: Mining Frequent Patterns in Data Streams at Multiple Time Granularities, Giannella; Han et al., 2003
![Page 36: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/36.jpg)
Data Stream Mining: FP-Stream
Source: Mining Frequent Patterns in Data Streams at Multiple Time Granularities, Giannella; Han et al., 2003
![Page 37: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/37.jpg)
Anomaly Detection
![Page 38: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/38.jpg)
Anomaly Detection
• Types
![Page 39: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/39.jpg)
Anomaly Detection
• Types
• Point: e.g. rainfall in mm
![Page 40: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/40.jpg)
Anomaly Detection
• Types
• Point: e.g. rainfall in mm
• Contextual: point + contextual attributes, e.g. rainfall in mm + lat/lon
![Page 41: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/41.jpg)
Anomaly Detection
• Types
• Point: e.g. rainfall in mm
• Contextual: point + contextual attributes, e.g. rainfall in mm + lat/lon
• Contextual anomaly detection algorithms categories
![Page 42: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/42.jpg)
Anomaly Detection
• Types
• Point: e.g. rainfall in mm
• Contextual: point + contextual attributes, e.g. rainfall in mm + lat/lon
• Contextual anomaly detection algorithms categories
• Reduction: 1) certain context, 2) point anomaly algorithm
![Page 43: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/43.jpg)
Anomaly Detection
• Types
• Point: e.g. rainfall in mm
• Contextual: point + contextual attributes, e.g. rainfall in mm + lat/lon
• Contextual anomaly detection algorithms categories
• Reduction: 1) certain context, 2) point anomaly algorithm
• Model: 1) learn through training, 2) compare: observed vs. expected
![Page 44: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/44.jpg)
Anomaly Detection
• Types
• Point: e.g. rainfall in mm
• Contextual: point + contextual attributes, e.g. rainfall in mm + lat/lon
• Contextual anomaly detection algorithms categories
• Reduction: 1) certain context, 2) point anomaly algorithm
• Model: 1) learn through training, 2) compare: observed vs. expected
• Algorithms studied: 2
![Page 45: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/45.jpg)
Anomaly Detection: Vilalta/Ma
![Page 46: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/46.jpg)
Anomaly Detection: Vilalta/Ma
• Based on frequent pattern mining
![Page 47: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/47.jpg)
Anomaly Detection: Vilalta/Ma
• Based on frequent pattern mining
• Find all frequent itemsets that precede anomalies
![Page 48: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/48.jpg)
OLAP: Data Cube
Source: Introduction to Data Mining, Tan; Steinbach; Kumar, 2006
![Page 49: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/49.jpg)
OLAP: Data Cube
Source: Introduction to Data Mining, Tan; Steinbach; Kumar, 2006
![Page 50: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/50.jpg)
OLAP: Data Cube: Range-Sum Performance
![Page 51: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/51.jpg)
OLAP: Data Cube: Range-Sum Performance
• Very common type of query
![Page 52: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/52.jpg)
OLAP: Data Cube: Range-Sum Performance
• Very common type of query
• Algorithms studied: 3
![Page 53: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/53.jpg)
OLAP: Data Cube: Dynamic Data Cube
Source: Data Cubes in Dynamic Environments, Geffner; Riedewald; Agrawal, 1999
![Page 54: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/54.jpg)
OLAP: Data Cube: Dynamic Data Cube
Source: Data Cubes in Dynamic Environments, Geffner; Riedewald; Agrawal, 1999
![Page 55: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/55.jpg)
Outlook
![Page 56: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/56.jpg)
Outlook
• Further literature study, especially: data cubes over data streams
![Page 57: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/57.jpg)
Outlook
• Further literature study, especially: data cubes over data streams
• Implementation
![Page 58: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/58.jpg)
Outlook
• Further literature study, especially: data cubes over data streams
• Implementation
![Page 59: Web Performance Optimization: Analytics › sites › wimleers.com › files › literature... · 2013-01-21 · Web Performance Optimization: Analytics Wim Leers Promotor: Prof](https://reader033.vdocuments.us/reader033/viewer/2022042408/5f2434484517ab6d5b2335f4/html5/thumbnails/59.jpg)
Questions?
Thanks for your time!