activity
20212026
most citedUnbiased Filtering Of Accidental Clicks in Verizon Media Native Advertising

5 citations · 6 across the 13 of their papers we have counts for

collaborators

13 papers

stat.ML2026

The Spectral Neuron

Alex Shtoff

As machine learned models increase in complexity and expressive power, features of simpler models, such as intrinsic coefficient transparency and control over the shape of the mode…

cs.LG2026

tensorFM: Low-Rank Approximations of Cross-Order Feature Interactions

Alessio Mazzetto, Mohammad Mahdi Khalili, Laura Fee Nern +3

We address prediction problems on tabular categorical data, where each instance is defined by multiple categorical attributes, each taking values from a finite set. These attribute…

cs.CL2025

LiveRAG: A diverse Q&A dataset with varying difficulty level for RAG evaluation

David Carmel, Simone Filice, Guy Horowitz +4

With Retrieval Augmented Generation (RAG) becoming more and more prominent in generative AI solutions, there is an emerging need for systematically evaluating their effectiveness.…

cs.LG2025

A Simple Method for PMF Estimation on Large Supports

Alex Shtoff

We study nonparametric estimation of a probability mass function (PMF) on a large discrete support, where the PMF is multi-modal and heavy-tailed. The core idea is to treat the emp…

stat.ME2024

Steady Continuous Monitoring is (Just Barely) Impossible for Tests of Unbounded Length

Eric Bax, Alex Shtoff

AB testing evaluates the difference between a control and a treatment in a statistically rigorous manner. Continuous monitoring allows statistical evaluation of an AB test as it pr…

stat.ME2024

Early Stopping Based on Repeated Significance

Eric Bax, Arundhyoti Sarkar, Alex Shtoff

For a bucket test with a single criterion for success and a fixed number of samples or testing period, requiring a -value less than a specified value of for the success crit…

cs.IR2024

Low Rank Field-Weighted Factorization Machines for Low Latency Item Recommendation

Alex Shtoff, Michael Viderman, Naama Haramaty-Krasne +3

Factorization machine (FM) variants are widely used in recommendation systems that operate under strict throughput and latency requirements, such as online advertising systems. FMs…

cs.IR2024

Improving conversion rate prediction via self-supervised pre-training in online advertising

Alex Shtoff, Yohay Kaplan, Ariel Raviv

The task of predicting conversion rates (CVR) lies at the heart of online advertising systems aiming to optimize bids to meet advertiser performance requirements. Even with the rec…

cs.IR2023★ 5 cited

Unbiased Filtering Of Accidental Clicks in Verizon Media Native Advertising

Yohay Kaplan, Naama Krasne, Alex Shtoff +1

Verizon Media (VZM) native advertising is one of VZM largest and fastest growing businesses, reaching a run-rate of several hundred million USDs in the past year. Driving the VZM n…

cs.LG2023

Function Basis Encoding of Numerical Features in Factorization Machines

Alex Shtoff, Elie Abboud, Rotem Stram +1

Factorization machine (FM) variants are widely used for large scale real-time content recommendation systems, since they offer an excellent balance between model accuracy and low c…

cs.IR2022

Conversion-Based Dynamic-Creative-Optimization in Native Advertising

Yohay Kaplan, Yair Koren, Alex Shtoff +2

Yahoo Gemini native advertising marketplace serves billions of impressions daily, to hundreds millions of unique users, and reaches a yearly revenue of many hundreds of millions US…

cs.LG2022

Efficient algorithms for implementing incremental proximal-point methods

Alex Shtoff

Model training algorithms which observe a small portion of the training set in each computational step are ubiquitous in practical machine learning, and include both stochastic and…

cs.LG2021★ 1 cited

Mitigating Divergence of Latent Factors via Dual Ascent for Low Latency Event Prediction Models

Alex Shtoff, Yair Koren

Real-world content recommendation marketplaces exhibit certain behaviors and are imposed by constraints that are not always apparent in common static offline data sets. One example…