My research interests span the areas of pattern recognition, machine learning, computer vision, multimedia signal processing and content analysis. I am particularly focusing on researches and applications for computer vision using machine learning techniques. Selected research projects of mine are: (1) object categorization and localization, (2) video object segmentation and human action categorization for movie and internet videos, (3) sparse coding and learning methods for image super-resolution, (4) feature seleciton using sparse-coding and multiple kernel learning based methods, (5) fusion of audio and visual information for multimodal recognition, and (6) machine learning and numerical optimization.