Search Results for author: Alexander Herzog

Found 12 papers, 3 papers with code

Proactive Query Expansion for Streaming Data Using External Source

1 code implementation17 Jan 2022 Farah Alshanik, Amy Apon, Yuheng Du, Alexander Herzog, Ilya Safro

Choosing which terms to add in order to improve the performance of the query expansion methods or to enhance the quality of the retrieved results is an important aspect of any information retrieval system.

Information Retrieval Retrieval +1

COCOI: Contact-aware Online Context Inference for Generalizable Non-planar Pushing

no code implementations23 Nov 2020 Zhuo Xu, Wenhao Yu, Alexander Herzog, Wenlong Lu, Chuyuan Fu, Masayoshi Tomizuka, Yunfei Bai, C. Karen Liu, Daniel Ho

General contact-rich manipulation problems are long-standing challenges in robotics due to the difficulty of understanding complicated contact physics.

Reinforcement Learning (RL) Robot Manipulation

Accelerating Text Mining Using Domain-Specific Stop Word Lists

no code implementations18 Nov 2020 Farah Alshanik, Amy Apon, Alexander Herzog, Ilya Safro, Justin Sybrandt

Eliminating domain-specific common words in a corpus reduces the dimensionality of the feature space, and improves the performance of text mining tasks.

Computational Efficiency Dimensionality Reduction +1

Thinking While Moving: Deep Reinforcement Learning with Concurrent Control

no code implementations ICLR 2020 Ted Xiao, Eric Jang, Dmitry Kalashnikov, Sergey Levine, Julian Ibarz, Karol Hausman, Alexander Herzog

We study reinforcement learning in settings where sampling an action from the policy must be done concurrently with the time evolution of the controlled system, such as when a robot must decide on the next action while still performing the previous action.

reinforcement-learning Reinforcement Learning (RL) +1

Transfer Topic Labeling with Domain-Specific Knowledge Base: An Analysis of UK House of Commons Speeches 1935-2014

no code implementations3 Jun 2018 Alexander Herzog, Peter John, Slava Jankin Mikhaylov

Topic models are widely used in natural language processing, allowing researchers to estimate the underlying themes in a collection of documents.

Topic Models

Database of Parliamentary Speeches in Ireland, 1919-2013

no code implementations15 Aug 2017 Alexander Herzog, Slava J. Mikhaylov

Background information on TDs was collected from the member database of the parliament website.

Scalable Dynamic Topic Modeling with Clustered Latent Dirichlet Allocation (CLDA)

no code implementations25 Oct 2016 Chris Gropp, Alexander Herzog, Ilya Safro, Paul W. Wilson, Amy W. Apon

In this paper, we introduce and empirically analyze Clustered Latent Dirichlet Allocation (CLDA), a method for extracting dynamic latent topics from a collection of documents.

Clustering Dynamic Topic Modeling

A Convex Model of Momentum Dynamics for Multi-Contact Motion Generation

no code implementations28 Jul 2016 Brahayam Ponton, Alexander Herzog, Stefan Schaal, Ludovic Righetti

This model is non-linear and non-convex; however, we find a relaxation of the problem that allows us to formulate it as a single convex quadratically-constrained quadratic program (QCQP) that can be very efficiently optimized.

Robotics

Cannot find the paper you are looking for? You can Submit a new open access paper.