challenges in big data data analysis what's the challenge in big data analysis? what's the challenge in big data analysis? what is the challenging in big data analysis what is the challenge in analytics what are challenges of big data analysis why is the challenges of big data analysis so important? what's the challenge in big data analysis what is challenge in big data analysis? challenges to data analysis what's the challenges in big data what is the challenge in big data analysis? what is the challenge of big data analysis what's the major problem of big data analysis challenges of big data analysis what's the challenge of big data what is the challenge in data analysis what is the challenges in big data what is the challenge in big data what's the challenge in big data analysis