Demo Data from EDBT 2026 / reviewers in the wild / expert
Yoad Lewenberg
dblp:131/5357
· DBLP profile ↗
12ranked-venue papers
8as first author
1since 2021 · last 2023
—ORCID · none
Domains — the database's venue-derived domains; a paper can count in several
Artificial intelligence and machine learning · 12 · 8 first-author · 1 since 2021Graphics, computer vision, multimedia, augmented reality and games · 9 · 6 first-authorDatabases, data management, data science and information retrieval · 1 · 1 first-authorTheory of computation · 1 · 1 first-author
Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.
| Artificial intelligence
8 papers |
Question answering and dialogue systems · 24% Language models and text generation · 18% Information extraction and text analysis · 14% | |
| Theoretical computer science
3 papers |
Algorithmic game theory and mechanism design · 100% | |
| Databases, data mining, and information retrieval
1 paper |
Machine learning and data management · 100% | |
| Interdisciplinary, comprehensive, and emerging computing
1 paper |
Computational social science and digital humanities · 100% |
Topics — the 12 heaviest of 15, each with the papers that count most for it
| Topic | Weight | Papers | Last | Evidence papers |
|---|---|---|---|---|
Natural language and speech › Question answering and dialogue systems › task-oriented dialogue
information-seeking dialogue |
0.7 | 1 | 2023 | q2d: Turning Questions into Dialogs to Teach Models How to Search · EMNLP 2023 |
Natural language and speech › Language models and text generation › retrieval-augmented generation
query generation |
0.7 | 1 | 2023 | q2d: Turning Questions into Dialogs to Teach Models How to Search · EMNLP 2023 |
Algorithmic game theory and mechanism design › social choice
computational social choice |
0.6 | 2 | 2019 | "Reverse Gerrymandering": Manipulation in Multi-Group Decision Making · AAAI 2019 Misrepresentation in District Voting · IJCAI 2016 |
Machine learning › Deep learning architectures and training
convolutional neural network |
0.3 | 2 | 2016 | Predicting Personal Traits from Facial Images Using Convolutional Neural Networks Augmented with Facial Landmark Information · IJCAI 2016 Predicting Personal Traits from Facial Images Using Convolutional Neural Networks Augmented with Facial Landmark Information · AAAI 2016 |
Machine learning › Probabilistic and Bayesian machine learning › experimental design › bayesian experimental design
bayesian active learning |
0.3 | 1 | 2017 | Knowing What to Ask: A Bayesian Active Learning Approach to the Surveying Problem · AAAI 2017 |
Computer vision › Face, body and person analysis › facial attribute analysis
facial attribute recognition |
0.2 | 1 | 2016 | Predicting Personal Traits from Facial Images Using Convolutional Neural Networks Augmented with Facial Landmark Information · AAAI 2016 |
Natural language and speech › Information extraction and text analysis › user profiling
personality recognition |
0.2 | 1 | 2016 | Predicting Personal Traits from Facial Images Using Convolutional Neural Networks Augmented with Facial Landmark Information · IJCAI 2016 |
Natural language and speech › Information extraction and text analysis
user profiling |
0.2 | 1 | 2016 | Predicting Gaming Related Properties from Twitter Accounts · AAAI 2016 |
Computational social science and digital humanities
social media analysis |
0.2 | 1 | 2016 | Predicting Gaming Related Properties from Twitter Accounts · AAAI 2016 |
Natural language and speech › Question answering and dialogue systems › reasoning-based question answering
multi-hop question answering |
0.2 | 1 | 2023 | q2d: Turning Questions into Dialogs to Teach Models How to Search · EMNLP 2023 |
Algorithmic game theory and mechanism design › auction theory › auction mechanism
all-pay auction |
0.2 | 1 | 2013 | Agent Failures in All-Pay Auctions · IJCAI 2013 |
Algorithmic game theory and mechanism design
social welfare |
0.1 | 1 | 2019 | "Reverse Gerrymandering": Manipulation in Multi-Group Decision Making · AAAI 2019 |
Methods — techniques the papers use, named apart from their topics
game theory · 1.2machine learning · 1.1convolutional neural network · 0.8large language model prompting · 0.7automatic data generation · 0.7bayesian dimensionality reduction · 0.3augmented linear regression · 0.3facial landmarks · 0.2facial landmark information · 0.2
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2023 | q2d: Turning Questions into Dialogs to Teach Models How to SearchabstractOne of the exciting capabilities of recent language models for dialog is their ability to independently search for relevant information to ground a given dialog response.However, obtaining training data to teach models how to issue search queries is time and resource consuming.In this work, we propose q2d: an automatic data generation pipeline that generates information-seeking dialogs from questions.We prompt a large language model (PaLM) to create conversational versions of question answering datasets, and use it to improve query generation models that communicate with external search APIs to ground dialog responses.Unlike previous approaches which relied on human written dialogs with search queries, our method allows to automatically generate querybased grounded dialogs with better control and scale.Our experiments demonstrate that: (1) For query generation on the QReCC dataset, models trained on our synthetically-generated data achieve 90%-97% of the performance of models trained on the human-generated data;(2) We can successfully generate data for training dialog models in new domains without any existing dialog data as demonstrated on the multi-hop MuSiQue and Bamboogle QA datasets.(3) We perform a thorough analysis of the generated dialogs showing that humans find them of high quality and struggle to distinguish them from human-written dialogs. 1 * Work done during an internship at Google Research. 1 We publicly release all prompts and will release all generated datasets. Yonatan Bitton, Shlomi Cohen-Ganor, Ido Hakimi, Yoad Lewenberg, Roee Aharoni, Enav Weinreb |
EMNLP | 4 |
| 2019 | "Reverse Gerrymandering": Manipulation in Multi-Group Decision MakingabstractDistrict-based manipulation, or gerrymandering, is usually taken to refer to agents who are in fixed location, and an external division is imposed upon them. However, in many real-world setting, there is an external, fixed division – an organizational chart of a company, or markets for a particular product. In these cases, agents may wish to move around (“reverse gerrymandering”), as each of them tries to maximize their influence across the company’s subunits, or resources are “working” to be allocated to areas where they will be most needed.In this paper we explore an iterative dynamic in this setting, finding that allowing this decentralized system results, in some particular cases, in a stable equilibrium, though in general, the setting may end up in a cycle. We further examine how this decentralized process affects the social welfare of the system. Omer Lev, Yoad Lewenberg |
AAAI | 2 |
| 2017 | Knowing What to Ask: A Bayesian Active Learning Approach to the Surveying ProblemabstractWe examine the surveying problem, where we attempt to predict how a target user is likely to respond to questions by iteratively querying that user, collaboratively based on the responses of a sample set of users. We focus on an active learning approach, where the next question we select to ask the user depends on their responses to the previous questions. We propose a method for solving the problem based on a Bayesian dimensionality reduction technique. We empirically evaluate our method, contrasting it to benchmark approaches based on augmented linear regression, and show that it achieves much better predictive performance, and is much more robust when there is missing data. Yoad Lewenberg, Yoram Bachrach, Ulrich Paquet, Jeffrey S. Rosenschein |
AAAI | 1 |
| 2017 | Machine Learning Techniques for MultiAgent SystemsabstractResearch in artificial intelligence ranges over many subdisciplines, such as Natural Language Processing, Computer Vision, Machine Learning, and MultiAgent Systems. Recently, AI techniques have become increasingly robust and complex, and there has been enhanced interest in research at the intersection of seemingly disparate research areas. Such work is motivated by the observation that there is actually a great deal of commonality among areas, that can be exploited within subfields. One example of a successful combination is the intersection of machine learning and multiagent systems. For example ,Kearns et al. [2001] proposed an efficient graphical model-based algorithm for calculating Nash equilibria. Going in the other direction, Datta et al. [2015] showed that solution concepts from cooperative game theory can be used to uniquely characterize the influence measure of classifiers. Yoad Lewenberg |
IJCAI | 1 |
| 2016 | Predicting Gaming Related Properties from Twitter AccountsabstractWe demonstrate a system for predicting gaming related properties from Twitter accounts. Our system predicts various traits of users based on the tweets publicly available in their profiles. Such inferred traits include degrees of tech-savviness and knowledge on computer games, actual gaming performance, preferred platform, degree of originality, humor and influence on others. Our system is based on machine learning models trained on crowd-sourced data. It allows people to select Twitter accounts of their fellow gamers, examine the trait predictions made by our system, and the main drivers of these predictions. We present empirical results on the performance of our system based on its accuracy on our crowd-sourced dataset. Maria I. Gorinova 0001, Yoad Lewenberg, Yoram Bachrach, Freddie Kalaitzis, Michael Fagan 0002, Dean Carignan, Nitin Gautam |
AAAI | 2 |
| 2016 | Using Convolutional Neural Networks to Analyze Function Properties from ImagesabstractWe propose a system for determining properties of mathematical functions given an image of their graph representation. We demonstrate our approach for two-dimensional graphs (curves of single variable functions) and three-dimensional graphs (surfaces of two variable functions), studying the properties of convexity and symmetry. Our method uses a Convolutional Neural Network which classifies functions according to these properties, without using any hand-crafted features. We propose algorithms for randomly constructing functions with convexity or symmetry properties, and use the images generated by these algorithms to train our network. Our system achieves a high accuracy on this task, even for functions where humans find it difficult to determine the function's properties from its image. Yoad Lewenberg, Yoram Bachrach, Ian A. Kash, Peter B. Key |
AAAI | 1 |
| 2016 | Predicting Personal Traits from Facial Images Using Convolutional Neural Networks Augmented with Facial Landmark InformationabstractWe consider the task of predicting various traits of a person given an image of their face. We aim to estimate traits such as gender, ethnicity and age, as well as more subjective traits as the emotion a person expresses or whether they are humorous or attractive. Due to the recent surge of research on Deep Convolutional Neural Networks (CNNs), we begin by using a CNN architecture, and corroborate that CNNs are promising for facial attribute prediction. To further improve performance, we propose a novel approach that incorporates facial landmark information for input images as an additional channel, helping the CNN learn face-specific features so that the landmarks across various training images hold correspondence. We empirically analyze the performance of our proposed method, showing consistent improvement over the baselines across traits. We demonstrate our system on a sizeable Face Attributes Dataset (FAD), comprising of roughly 200,000 labels, for 10 most sought-after traits, for over 10,000 facial images. Yoad Lewenberg, Yoram Bachrach, Sukrit Shankar, Antonio Criminisi |
AAAI | 1 |
| 2016 | Misrepresentation in District Voting
Yoram Bachrach, Omer Lev, Yoad Lewenberg, Yair Zick |
IJCAI | 3 |
| 2016 | Predicting Personal Traits from Facial Images Using Convolutional Neural Networks Augmented with Facial Landmark Information
Yoad Lewenberg, Yoram Bachrach, Sukrit Shankar, Antonio Criminisi |
IJCAI | 1 |
| 2016 | Political Dimensionality Estimation Using a Probabilistic Graphical Model
Yoad Lewenberg, Yoram Bachrach, Lucas Bordeaux, Pushmeet Kohli |
UAI | 1 |
| 2015 | Using emotions to predict user interest areas in online social networksabstractWe examine the relation between the emotions users express on social networks and their perceived areas of interests, based on a sample of Twitter users. Our methodology relies on training machine learning models to classify the emotions expressed in tweets, according to Ekman's six high-level emotions. We then used raters, sourced from Amazon's Mechanical Turk, to examine several Twitter profiles and to determine whether the profile owner is interested in various areas, including sports, movies, technology and computing, politics, news, economics, science, arts, health and religion. We find that the propensity of a user to express various emotions correlates with their perceived degree of interest in various areas. We present several models that use the emotional distribution of a Twitter user, as reflected by their tweets, to predict whether they are interested or disinterested in a topic or to determine their degree of interest in a topic. Yoad Lewenberg, Yoram Bachrach, Svitlana Volkova |
DSAA | 1 |
| 2013 | Agent Failures in All-Pay Auctions
Yoad Lewenberg, Omer Lev, Yoram Bachrach, Jeffrey S. Rosenschein |
IJCAI | 1 |