How big data can help small data？（71页）.pdf

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1、How big data can help small data?Fei ShaDepartment of Computer ScienceUniversity of Southern CaliforniaLos Angeles,CAWhere does this“small”data come from?Examples from yesterdays talksL3 Edge case study“常常会遇到偶发的大雾，大雪，”Quan Finance“左尾”“右尾”没有足够多的数据Education planning is complex decision-makingTime scal

2、es Short-term Which school?Extracurricular activities:sports,arts,etc?Mid-term Which university?Which speciality?Long-term What kind of career path?What else makes this hard?Individual differences Genetically Environmentally Harsh constraints One-shot game Costly to recover from mistakes Our goal:pe

3、rsonalized learning and education Bill&Melinda Gates Foundation on Personalized LearningCNN on Personalized Learning,2016Can machine learning/AI achieve that?Sadly,not 100%yet Individualized models need individual-specific data The amount of data is fundamentally limited,hence being Small.Most moder

4、n learning algorithms require Big Data about the individual.Can you build a model of me?Can machine learning/AI achieve that?Sadly,not 100%yet Individualized models need individual-specific data The amount of data is fundamentally limited,hence being Small.Most modern learning algorithms require Big

5、 Data about the individual.Can you build a model of me?I will need more data from you.Can machine learning/AI achieve that?Sadly,not 100%yet Individualized models need individual-specific data The amount of data is fundamentally limited,hence being Small.Most modern learning algorithms require Big D

6、ata about the individual.Can you build a model of me?I will need more data from you.Or I can give you the model of those3 vignettes of how Big Data can help Small Data3 Learning settings Multi-task learning Domain adaptation Zero-shot learning Primary application focus Computer vision3 vignettes of