Vishwanth Tumkur Ramarao

Title: Innovations by Vishwanth Tumkur Ramarao

Introduction

Vishwanth Tumkur Ramarao is an accomplished inventor based in Sunnyvale, CA. He has made significant contributions to the field of technology, particularly in spam detection and image processing. With a total of 3 patents to his name, his work has garnered attention in the tech industry.

Latest Patents

One of his latest patents is a "Filter for blocking image-based spam." This innovation involves a network device and method aimed at detecting and blocking image spam within messages. It employs a weighted min-hash to perform near duplicate detection of features within an image compared to known spam images. The weighting for the min-hash is determined using a machine learning algorithm, such as a perceptron, to assess the importance of each bit in the image's signature vector. The signature vector is generated by extracting the shape of text in the image using a Discrete Cosine Transform and applying various morphological operations to enhance the text shape while reducing noise.

Another notable patent is the "Learning framework for online applications." This invention focuses on learning to detect spam messages through a multi-stage combination of probability calculations based on individual and aggregate training sets of previously identified messages. During the preliminary phase, classifiers are trained, and probabilities are iteratively determined using subsets of messages categorized as valid or spam. In the live phase, classifiers utilize these probabilities to mark newly received messages as spam if they meet certain thresholds.

Career Highlights

Vishwanth Tumkur Ramarao is currently employed at Yahoo! Inc., where he continues to innovate and contribute to advancements in technology. His work has been instrumental in enhancing spam detection mechanisms, which are crucial for maintaining the integrity of online communications.

Collaborations

He has collaborated with notable coworkers, including Ke Wei and Jaesik Choi, who have also contributed to the field of technology and innovation.

Conclusion

Vishwanth Tumkur Ramarao's contributions to technology through his patents demonstrate his commitment to innovation and problem-solving in the digital age. His work in spam detection and image processing continues to impact the industry positively.