Browsing by Author "Sundaram, Kavya"
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- Deepfake Videos in the Wild: Analysis and DetectionPu, Jiameng; Mangaokar, Neal; Kelly, Lauren; Bhattacharya, Parantapa; Sundaram, Kavya; Javed, Mobin; Wang, Bolun; Viswanath, Bimal (ACM, 2021-04)AI-manipulated videos, commonly known as deepfakes, are an emerging problem. Recently, researchers in academia and industry have contributed several (self-created) benchmark deepfake datasets, and deepfake detection algorithms. However, little effort has gone towards understanding deepfake videos in the wild, leading to a limited understanding of the real-world applicability of research contributions in this space. Even if detection schemes are shown to perform well on existing datasets, it is unclear how well the methods generalize to real-world deepfakes. To bridge this gap in knowledge, we make the following contributions: First, we collect and present the largest dataset of deepfake videos in the wild, containing 1,869 videos from YouTube and Bilibili, and extract over 4.8M frames of content. Second, we present a comprehensive analysis of the growth patterns, popularity, creators, manipulation strategies, and production methods of deepfake content in the realworld. Third, we systematically evaluate existing defenses using our new dataset, and observe that they are not ready for deployment in the real-world. Fourth, we explore the potential for transfer learning schemes and competition-winning techniques to improve defenses.
- ShopSavvySisodiya, Pallavi Kishor; Ganesh, Aparna; Suresh, Deepti; Sundaram, Kavya; Maxey, Ryan (2023-05-03)ShopSavvy is a grocery comparison application that allows users to find the lowest price points at their local grocery stores and plan their shopping trip. This web application is simplistic and intuitive to allow any user, whether tech savvy or not, to enjoy the benefits ShopSavvy has to offer. Our motivation is to help individuals and families budget their grocery purchases by providing economic options to get the best value out for the money spent. The unique value of this application comes from the gas calculator feature. This allows users to view the estimated gas cost for driving to one or many grocery store locations. Additionally, users can search through numerous products and categories, and quickly see which store offers the best deals while factoring in both the grocery price and fuel costs. This helps users make a more informed decision on where they would like to shop. With ShopSavvy, planning shopping trips becomes easier, and savings become optimized while also reducing your carbon footprint.