64 Result(s)
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Chapter and Conference Paper
Graphical Model Sketch
Structured high-cardinality data arises in many domains, and poses a major challenge for both modeling and inference. Graphical models are a popular approach to modeling structured data but they are unsuitable...
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Chapter
Approximate Histogram and Wavelet Summaries of Streaming Data
We study a synopsis abstract data structure similar to an array abstract data type commonly seen in textbooks. Specifically, we model an array ...
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Chapter and Conference Paper
The Shapley Value in Knapsack Budgeted Games
We propose the study of computing the Shapley value for a new class of cooperative games that we call budgeted games, and investigate in particular knapsack budgeted games, a version modeled after the classica...
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Chapter and Conference Paper
Budget Feasible Mechanisms for Experimental Design
We present a deterministic, polynomial time, budget feasible mechanism scheme, that is approximately truthful and yields a constant (≈ 12.98) factor approximation for the Experimental Design Problem (EDP). By app...
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Chapter and Conference Paper
Nearly Optimal Private Convolution
We study algorithms for computing the convolution of a private input x with a public input h, while satisfying the guarantees of (ε, δ)-differential privacy. Convolution is a fundamental operation, intimately rel...
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Chapter and Conference Paper
Market Approach to Social Ads: The MyLikes Example and Related Problems
A potential way to advertise on social networks is to rely on word of mouth. What is a market approach to word of mouth social advertising? We describe an example: MyLikes, which is a new advertising platform....
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Chapter and Conference Paper
A Time and Space Efficient Algorithm for Contextual Linear Bandits
We consider a multi-armed bandit problem where payoffs are a linear function of an observed stochastic contextual variable. In the scenario where there exists a gap between optimal and suboptimal rewards, seve...
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Chapter and Conference Paper
Forty Years of Text Indexing
This paper reviews the first 40 years in the life of textual inverted indexes, their many incarnations, and their applications. The paper is non-technical and assumes some familiarity with the structures and c...
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Chapter
Frugal Streaming for Estimating Quantiles
Modern applications require processing streams of data for estimating statistical quantities such as quantiles with small amount of memory. In many such applications, in fact, one needs to compute such statist...
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Chapter and Conference Paper
Scienceography: The Study of How Science Is Written
Scientific literature has itself been the subject of much scientific study, for a variety of reasons: understanding how results are communicated, how ideas spread, and assessing the influence of areas or indiv...
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Chapter and Conference Paper
Budget Optimization for Online Campaigns with Positive Carryover Effects
While it is relatively easy to start an online advertising campaign, proper allocation of the marketing budget is far from trivial. A major challenge faced by the marketers attempting to optimize their campaig...
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Chapter and Conference Paper
Strictly-Black-Box Zero-Knowledge and Efficient Validation of Financial Transactions
Zero Knowledge Proofs (ZKPs) are one of the most striking innovations in theoretical computer science. In practice, the prevalent ZKP methods are, at times, too complicated to be useful for real-life applicati...
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Chapter
Node Classification in Social Networks
When dealing with large graphs, such as those that arise in the context of online social networks, a subset of nodes may be labeled. These labels can indicate demographic values, interest, beliefs or other cha...
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Chapter and Conference Paper
Quasi-Proportional Mechanisms: Prior-Free Revenue Maximization
Inspired by Internet ad auction applications, we study the problem of allocating a single item via an auction when bidders place very different values on the item. We formulate this as the problem of prior-free a...
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Chapter and Conference Paper
Approximation Schemes for Sequential Posted Pricing in Multi-unit Auctions
We design algorithms for computing approximately revenue-maximizing sequential posted-pricing mechanisms (SPM) in K-unit auctions, in a standard Bayesian model. A seller has K copies of an item to sell, and there...
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Chapter and Conference Paper
Selective Call Out and Real Time Bidding
Ads on the Internet are increasingly sold via ad exchanges such as RightMedia, AdECN and Doubleclick Ad Exchange. These exchanges allow real-time bidding, that is, each time the publisher contacts the exchange...
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Chapter and Conference Paper
Stochastic Data Streams
The classical data stream problems are now greatly understood [1]. This talk will focus on problems with stochastic (rather than deterministic) streams where the underlying physical phenomenon generates probab...
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Chapter and Conference Paper
Bidding on Configurations in Internet Ad Auctions
In Internet advertising, a configuration of ads is determined by the seller, and advertisers buy spaces in the configuration. In this paper, motivated by sponsored search ads, we propose an auction where adver...
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Chapter and Conference Paper
Ad Exchanges: Research Issues
An emerging way to sell and buy display ads on the Internet is via ad exchanges. RightMedia [1], AdECN [2] and DoubleClick Ad Exchange [3] are examples of such real-time two-sided markets. We describe an abstr...
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Chapter and Conference Paper
Online Ad Assignment with Free Disposal
We study an online weighted assignment problem with a set of fixed nodes corresponding to advertisers and online arrival of nodes corresponding to ad impressions. Advertiser a has a contract for n(a) impressions,...
