Search Results for author: Costas J. Spanos

Found 15 papers, 1 papers with code

Machine Learning for Smart and Energy-Efficient Buildings

no code implementations27 Nov 2022 Hari Prasanna Das, Yu-Wen Lin, Utkarsha Agwan, Lucas Spangher, Alex Devonport, Yu Yang, Jan Drgona, Adrian Chong, Stefano Schiavon, Costas J. Spanos

In this work, we review the ways in which machine learning has been leveraged to make buildings smart and energy-efficient.

Asset Participation and Aggregation in Incentive-Based Demand Response Programs

no code implementations23 Aug 2022 Utkarsha Agwan, Costas J. Spanos, Kameshwar Poolla

We develop a probabilistic model for the curtailment capability of these assets, and use it to derive analytic expressions for the optimal participation (i. e., promised curtailment) and profitability from the DR asset perspective.

Conditional Synthetic Data Generation for Personal Thermal Comfort Models

no code implementations10 Mar 2022 Hari Prasanna Das, Costas J. Spanos

Recently, machine learning algorithms have proven to be having enormous potential as a candidate for personal thermal comfort models.

BIG-bench Machine Learning Privacy Preserving +1

Conditional Synthetic Data Generation for Robust Machine Learning Applications with Limited Pandemic Data

no code implementations14 Sep 2021 Hari Prasanna Das, Ryan Tran, Japjot Singh, Xiangyu Yue, Geoff Tison, Alberto Sangiovanni-Vincentelli, Costas J. Spanos

To tackle the challenges of limited data, and label scarcity in the available data, we propose generating conditional synthetic data, to be used alongside real data for developing robust ML models.

BIG-bench Machine Learning Computed Tomography (CT) +2

CDCGen: Cross-Domain Conditional Generation via Normalizing Flows and Adversarial Training

no code implementations25 Aug 2021 Hari Prasanna Das, Ryan Tran, Japjot Singh, Yu-Wen Lin, Costas J. Spanos

We also learn the joint distribution of the data samples and attributes in the source domain by employing an encoder to map attributes to the latent space via adversarial training.

Attribute Synthetic Data Generation +1

Optimal Sharing and Fair Cost Allocation of Community Energy Storage

no code implementations29 Oct 2020 Yu Yang, Guoqiang Hu, Costas J. Spanos

Further, we demonstrate both the building-wise and community-wise economic benefits are enhanced with the ES sharing model over the individual ES (IES) model.

Fairness Computer Science and Game Theory

Design, Benchmarking and Explainability Analysis of a Game-Theoretic Framework towards Energy Efficiency in Smart Infrastructure

no code implementations16 Oct 2019 Ioannis C. Konstantakopoulos, Hari Prasanna Das, Andrew R. Barkan, Shiying He, Tanya Veeravalli, Huihan Liu, Aummul Baneen Manasawala, Yu-Wen Lin, Costas J. Spanos

In this paper, we propose a gamification approach as a novel framework for smart building infrastructure with the goal of motivating human occupants to reconsider personal energy usage and to have positive effects on their environment.

Benchmarking Decision Making

A Novel Graphical Lasso based approach towards Segmentation Analysis in Energy Game-Theoretic Frameworks

no code implementations5 Oct 2019 Hari Prasanna Das, Ioannis C. Konstantakopoulos, Aummul Baneen Manasawala, Tanya Veeravalli, Huihan Liu, Costas J. Spanos

A number of such frameworks have been introduced over the years which formulate the energy saving process as a competitive game with appropriate incentives for energy efficient players.

Decision Making Segmentation

Efficient Task-Specific Data Valuation for Nearest Neighbor Algorithms

3 code implementations22 Aug 2019 Ruoxi Jia, David Dao, Boxin Wang, Frances Ann Hubis, Nezihe Merve Gurel, Bo Li, Ce Zhang, Costas J. Spanos, Dawn Song

The most surprising result is that for unweighted $K$NN classifiers and regressors, the Shapley value of all $N$ data points can be computed, exactly, in $O(N\log N)$ time -- an exponential improvement on computational complexity!

Data Valuation Fairness

Likelihood Contribution based Multi-scale Architecture for Generative Flows

no code implementations5 Aug 2019 Hari Prasanna Das, Pieter Abbeel, Costas J. Spanos

Deep generative modeling using flows has gained popularity owing to the tractable exact log-likelihood estimation with efficient training and synthesis process.

Dimensionality Reduction

Segmentation Analysis in Human Centric Cyber-Physical Systems using Graphical Lasso

no code implementations24 Oct 2018 Hari Prasanna Das, Ioannis C. Konstantakopoulos, Aummul Baneen Manasawala, Tanya Veeravalli, Huihan Liu, Costas J. Spanos

A generalized gamification framework is introduced as a form of smart infrastructure with potential to improve sustainability and energy efficiency by leveraging humans-in-the-loop strategy.

Decision Making Segmentation

Causal meets Submodular: Subset Selection with Directed Information

no code implementations NeurIPS 2016 Yuxun Zhou, Costas J. Spanos

We study causal subset selection with Directed Information as the measure of prediction causality.

Sequential Logistic Principal Component Analysis (SLPCA): Dimensional Reduction in Streaming Multivariate Binary-State System

no code implementations16 Jul 2014 Zhaoyi Kang, Costas J. Spanos

Sequential or online dimensional reduction is of interests due to the explosion of streaming data based applications and the requirement of adaptive statistical modeling, in many emerging fields, such as the modeling of energy end-use profile.

Environmental Sensing by Wearable Device for Indoor Activity and Location Estimation

no code implementations22 Jun 2014 Ming Jin, Han Zou, Kevin Weekly, Ruoxi Jia, Alexandre M. Bayen, Costas J. Spanos

We present results from a set of experiments in this pilot study to investigate the causal influence of user activity on various environmental parameters monitored by occupant carried multi-purpose sensors.

energy management Management +1

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