Publications de Tri Kurniawan Wijaya

Cluster-based Aggregate Forecasting for Residential Electricity Demand using Smart Meter Data

Karl Aberer, Tri Kurniawan Wijaya, Samuel François Roger Joseph Humeau, Matteo Vasirani

While electricity demand forecasting literature has focused on large, industrial, and national demand, this paper focuses on short-term (1 and 24 hour ahead) electricity demand forecasting for residential customers at the individual and aggregate level. Si ...

2015

Pervasive Data Analytics for Sustainable Energy Systems

Tri Kurniawan Wijaya

With an ever growing population, global energy demand is predicted to keep increasing. Furthermore, the integration of renewable energy sources into the electricity grid (to reduce carbon emission and humanity's dependency on fossil fuels), complicates eff ...

EPFL2015

SMART: A tool for analyzing and reconciling schema matching networks

Karl Aberer, Quoc Viet Hung Nguyen, Zoltán Miklós, Thành Tâm Nguyên, Tri Kurniawan Wijaya, Vình Tuàn Chàu

Schema matching supports data integration by establishing correspondences between the attributes of independently designed database schemas. In recent years, various tools for automatic pair-wise matching of schemas have been developed. Since the matching ...

2015

Online Unsupervised State Recognition in Sensor Data

Karl Aberer, Julien Eberle, Tri Kurniawan Wijaya

Smart sensors, such as smart meters or smart phones, are nowadays ubiquitous. To be "smart", however, they need to process their input data with limited storage and computational resources. In this paper, we convert the stream of sensor data into a stream ...

2015

Forecasting Uncertainty in Electricity Demand

Tri Kurniawan Wijaya

Generalized Additive Models (GAM) are a widely popular class of regression models to forecast electricity demand, due to their high accuracy, flexibility and interpretability. However, the residuals of the fitted GAM are typically heteroscedastic and lepto ...

2015

An Economic Analysis of Pervasive, Incentive-Based Demand Response

Karl Aberer, Tri Kurniawan Wijaya, Matteo Vasirani

Demand response (DR) emerges as one of the cheapest and greenest solutions to match supply and demand in the electricity sector. While DR has been focused on large and industrial consumers, pervasive implementation (by including residential consumers) is n ...

2015

When Bias Matters: An Economic Assessment of Demand Response Baselines for Residential Customers

Karl Aberer, Tri Kurniawan Wijaya, Matteo Vasirani

Demand response (DR) has been known to play an important role in the electricity sector to balance supply and demand. To this end, the DR baseline is a key factor in a successful DR program since it influences the incentive allocation mechanism and custome ...

Ieee-Inst Electrical Electronics Engineers Inc2014

SmartD: Smart Meter Data Analytics Dashboard

Karl Aberer, Tri Kurniawan Wijaya, Aylin Jarrah Nezhad, Matteo Vasirani

The ability of smart meters to communicate energy consumption data in (near) real-time enables data analytics for novel applications, such as pervasive demand response, personalized energy feedback, outage management, and theft detection. Smart meter data ...

2014

Privacy Enhanced Demand Response with Reputation-based Incentive Distribution

Karl Aberer, Georgios Liassas, Tri Kurniawan Wijaya, Matteo Vasirani

Demand response (DR) is a Smart Grid application that aims at managing consumption of electricity in response to supply-side signals. The exchange of sensitive information (i.e., electricity consumption data) between the consumers and the DR provider is ne ...

2014

DRSim: A Cyber Physical Simulator for Demand Response Systems

Karl Aberer, Dipanjan Chakraborty, Tri Kurniawan Wijaya

Demand Response (DR) is a mechanism in which electricity consumers alter their demand in response to power grid’s supply and economic conditions. DR programs have the potential to improve resource efficiency, sustainability, grid reliability and economic v ...

2013

Minimizing Human Effort in Reconciling Match Networks

Karl Aberer, Quoc Viet Hung Nguyen, Zoltán Miklós, Tri Kurniawan Wijaya

Schema and ontology matching is a process of establishing correspondences between schema attributes and ontology concepts, for the purpose of data integration. Various commercial and academic tools have been developed to support this task. These tools prov ...

2013

Matching Demand with Supply in the Smart Grid using Agent-Based Multiunit Auction

Karl Aberer, Tri Kurniawan Wijaya

Recent work has suggested reducing electricity generation cost by cutting the peak to average ratio (PAR) without reducing the total amount of the loads. However, most of these proposals rely on consumer's willingness to act. In this paper, we propose an a ...

IEEE2013

Effective Consumption Scheduling for Demand-Side Management in the Smart Grid using Non-Uniform Participation Rate

Karl Aberer, Tri Kurniawan Wijaya, Xin Liu

Periods of peak consumer demand in today’s electricity sector are expensive to satisfy and can be the source of power failures. One possible solution is the use of demand-side management (DSM) applying dynamic pricing mechanisms. However, instead of reduci ...

2013

Symbolic Representation of Smart Meter Data

Karl Aberer, Julien Eberle, Tri Kurniawan Wijaya

Currently smart meter data analytics has received enormous attention because it allows utility companies to analyze customer consumption behavior in real time. However, the amount of data generated by these sensors is very large. As a result, analytics per ...

ACM2013

Electricity Load Forecasting for Residential Customers: Exploiting Aggregation and Correlation between Households

Karl Aberer, Tri Kurniawan Wijaya, Samuel François Roger Joseph Humeau, Matteo Vasirani

The recent development of smart meters has allowed the analysis of household electricity consumption in real time. Predicting electricity consumption at such very low scales should help to increase the efficiency of distribution networks and energy pricing ...

IEEE2013

Mining Complex Activities in the Wild via a Single Smartphone Accelerometer

Karl Aberer, Zhixian Yan, Dipanjan Chakraborty, Tri Kurniawan Wijaya, Angshu Rai

Complex activities are activities that are a combination of many simple ones. Typically, activities of daily living (ADLs) fall in this category. Complex activity recognition is an active area of interest amongst sensing and knowledge mining community toda ...

ACM2012