Research

PUBLICATIONS:

Organic Ponies and Sponsored Batteries: A Category-Based CTR Optimization Model
O Levi
Proceedings of the SIGIR 2019 Workshop on eCommerce, co-located with the 42nd International ACM SIGIR Conference

Selective cluster-based document retrieval
O Levi, F Raiber, O Kurland, I Guy
Proceedings of the 25th ACM International on Conference on Information and Knowledge Management

Selective Cluster Presentation on the Search Results Page
O Levi, I Guy, F Raiber, O Kurland
ACM Transactions on Information Systems (TOIS) 36 (3), 28

Online Learning of a Ranking Formula for Revenue and Advertiser ROI Optimization
O Levi
ICTIR 2017, LEARNER – 1st International Workshop on Learning Next Generation Rankers

PATENTS:

SOCIAL NETWORK INITIATED LISTINGS – Application No. 15/705,913
Or Levi et al.
Invented and developed a patented technology for selling on ecommerce sites via social networks.
Winner of the Excellence in Innovation Award out of 219 hackthon demos worldwide

FUN PROJECTS:

FunnyBot – Can Machines Tell Jokes? A Deep Recurrent Neural Network in TensorFlow
Taking up on Open-AI requests for research: an implementation of word-level LSTM in TensorFlow trained on a 200k English jokes dataset.
Work in progress – (hopefully) funny jokes to follow!

Playing Pac-man with Artificial Intelligence / Reinforcement Learning
Solving the Pac-man game as a Markov Decision Process problem with the aim of learning an optimal policy using a value-iteration approach.