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

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