Search Results for author: Clayton Miller

Found 22 papers, 15 papers with code

Creating synthetic energy meter data using conditional diffusion and building metadata

1 code implementation31 Mar 2024 Chun Fu, Hussain Kazmi, Matias Quintana, Clayton Miller

Thus, the study proposes a conditional diffusion model for generating high-quality synthetic energy data using relevant metadata.

Opening the Black Box: Towards inherently interpretable energy data imputation models using building physics insight

1 code implementation28 Nov 2023 Antonio Liguori, Matias Quintana, Chun Fu, Clayton Miller, Jérôme Frisch, Christoph van Treeck

While no significant improvement is observed in terms of reconstruction error with the proposed PI-DAE, its enhanced robustness to varying rates of missing data and the valuable insights derived from the physics-based coefficients create opportunities for wider applications within building systems and the built environment.

Denoising Imputation

Semantic segmentation of longitudinal thermal images for identification of hot and cool spots in urban areas

no code implementations6 Oct 2023 Vasantha Ramani, Pandarasamy Arjunan, Kameshwar Poolla, Clayton Miller

The masks generated using the segmentation models were then used to extract the temperature from thermal images and correct for differences in the emissivity of various urban features.

Segmentation Semantic Segmentation

District-scale surface temperatures generated from high-resolution longitudinal thermal infrared images

1 code implementation3 May 2023 Subin Lin, Vasantha Ramani, Miguel Martin, Pandarasamy Arjunan, Adrian Chong, Filip Biljecki, Marcel Ignatius, Kameshwar Poolla, Clayton Miller

The rooftop infrared thermography observatory with a multi-modal platform that is capable of assessing a wide range of dynamic processes in urban systems was deployed in Singapore.

Longitudinal thermal imaging for scalable non-residential HVAC and occupant behaviour characterization

no code implementations17 Nov 2022 Vasantha Ramani, Miguel Martin, Pandarasamy Arjunan, Adrian Chong, Kameshwar Poolla, Clayton Miller

It is observed that for the water-cooled system, the difference between the rate of change of the window and wall can be used to extract the operational pattern.

InfraRed Investigation in Singapore (IRIS) Observatory: Urban heat island contributors and mitigators analysis using neighborhood-scale thermal imaging

no code implementations21 Oct 2022 Miguel Martin, Vasantha Ramani, Clayton Miller

From data collected by the observatory and the automatic weather station network, a method was developed to estimate the heat emitted by building facades, vegetation, and traffic.

Cohort comfort models -- Using occupants' similarity to predict personal thermal preference with less data

1 code implementation5 Aug 2022 Matias Quintana, Stefano Schiavon, Federico Tartarini, Joyce Kim, Clayton Miller

On the other hand, for half and one third of each dataset occupant population, using Cohort Comfort Models, with less historical data from target occupants, Cohort Comfort Models increased their thermal preference prediction by 8~\% and 5~\% on average, and up to 36~\% and 46~\% for some occupants, when compared to general-purpose models trained on the whole population of occupants.

ALDI++: Automatic and parameter-less discord and outlier detection for building energy load profiles

1 code implementation13 Mar 2022 Matias Quintana, Till Stoeckmann, June Young Park, Marian Turowski, Veit Hagenmeyer, Clayton Miller

Data-driven building energy prediction is an integral part of the process for measurement and verification, building benchmarking, and building-to-grid interaction.

Benchmarking BIG-bench Machine Learning +1

Targeting occupant feedback using digital twins: Adaptive spatial-temporal thermal preference sampling to optimize personal comfort models

no code implementations22 Feb 2022 Mahmoud Abdelrahman, Clayton Miller

Collecting intensive longitudinal thermal preference data from building occupants is emerging as an innovative means of characterizing the performance of buildings and the people who use them.

Gradient boosting machines and careful pre-processing work best: ASHRAE Great Energy Predictor III lessons learned

no code implementations7 Feb 2022 Clayton Miller, Liu Hao, Chun Fu

The ASHRAE Great Energy Predictor III (GEPIII) competition was held in late 2019 as one of the largest machine learning competitions ever held focused on building performance.

Using Google Trends as a proxy for occupant behavior to predict building energy consumption

1 code implementation31 Oct 2021 Chun Fu, Clayton Miller

In recent years, the availability of larger amounts of energy data and advanced machine learning algorithms has created a surge in building energy prediction research.

Limitations of machine learning for building energy prediction: ASHRAE Great Energy Predictor III Kaggle competition error analysis

1 code implementation25 Jun 2021 Clayton Miller, Bianca Picchetti, Chun Fu, Jovan Pantelic

Higher magnitude (out-of-range) errors (RMSLE_scaled > 0. 3) occur in 4. 8% of the test data and are unlikely to be accurately predicted.

BIG-bench Machine Learning

Balancing thermal comfort datasets: We GAN, but should we?

1 code implementation28 Sep 2020 Matias Quintana, Stefano Schiavon, Kwok Wai Tham, Clayton Miller

However, when classes representing discomfort are merged and reduced to three, better imbalanced performance is expected, and the additional increase in performance by $\texttt{comfortGAN}$ shrinks to 1-2%.

Generative Adversarial Network

Humans-as-a-sensor for buildings: Intensive longitudinal indoor comfort models

2 code implementations4 Jul 2020 Prageeth Jayathissa, Matias Quintana, Mahmoud Abdelrahman, Clayton Miller

These classification models were trained on a feature set that was developed from time-series attributes, environmental and near-body sensors, heart rate, and the historical preferences of both the individual and the comfort group assigned.

Human-Computer Interaction Applications

Build2Vec: Building Representation in Vector Space

no code implementations1 Jul 2020 Mahmoud Abdelrahman, Adrian Chong, Clayton Miller

In this paper, we represent a methodology of a graph embeddings algorithm that is used to transform labeled property graphs obtained from a Building Information Model (BIM).

Spacematch: Using environmental preferences to match occupants to suitable activity-based workspaces

1 code implementation17 Jun 2020 Tapeesh Sood, Patrick Janssen, Clayton Miller

In this work, we tested the ability for this feedback data to be merged with indoor environmental values from Internet-of-Things (IoT) sensors to optimize space and energy use by grouping occupants with similar preferences.

Management

The Building Data Genome Project 2: Hourly energy meter data from the ASHRAE Great Energy Predictor III competition

2 code implementations3 Jun 2020 Clayton Miller, Anjukan Kathirgamanathan, Bianca Picchetti, Pandarasamy Arjunan, June Young Park, Zoltan Nagy, Paul Raftery, Brodie W. Hobson, Zixiao Shi, Forrest Meggers

This paper describes an open data set of 3, 053 energy meters from 1, 636 non-residential buildings with a range of two full years (2016 and 2017) at an hourly frequency (17, 544 measurements per meter resulting in approximately 53. 6 million measurements).

Applications

EnergyStar++: Towards more accurate and explanatory building energy benchmarking

1 code implementation30 Oct 2019 Pandarasamy Arjunan, Kameshwar Poolla, Clayton Miller

Even more importantly, a set of techniques is developed to help determine which factors most influence the score using SHAP values.

Benchmarking energy management +2

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