T. Teixeira

Publications46
h-index19
Citations1,103
Highly Influential Citations43
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Model-Based Design Exploration of Wireless Sensor Node Lifetimes
TLDR
This paper presents two lifetime models that describe two of the most common modes of operation of sensor nodes today, trigger-driven and duty-cycle driven. Expand
  • 55
  • 7
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Tasking networked CCTV cameras and mobile phones to identify and localize multiple people
TLDR
We present a method to identify and localize people by leveraging existing CCTV camera infrastructure along with inertial sensors (accelerometer and magnetometer) within each person's mobile phones. Expand
  • 71
  • 6
  • PDF
Ontologies for the internet of things
TLDR
We give an overview of a service-oriented middleware solution that addresses those challenges using semantic technologies to provide interoperability and flexibility. Expand
  • 143
  • 5
  • PDF
Sensor node lifetime analysis: Models and tools
TLDR
This article presents two lifetime models that describe two of the most common modes of operation of sensor nodes today, trigger-driven and duty-cycle driven. Expand
  • 79
  • 4
  • PDF
PEM-ID: Identifying people by gait-matching using cameras and wearable accelerometers
TLDR
We introduce a new distance measure between signals comprised of timestamps of gait landmarks, and utilize it to identify each tracked person from the video by pairing them with a wearable accelerometer node. Expand
  • 39
  • 4
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Service Oriented Middleware for the Internet of Things: A Perspective - (Invited Paper)
TLDR
In this paper, we survey the major challenges posed to service-oriented middleware towards sustaining a service-based Internet of Things, together with related state of the art. Expand
  • 125
  • 3
  • PDF
The BehaviorScope framework for enabling ambient assisted living
TLDR
In this article, we report our experiences and present our current progress in three main components: sensors, middleware, and behavior interpretation mechanisms spanning from simple programmable rule-based alerts to algorithms for extracting the temporal routines of individuals. Expand
  • 68
  • 2
  • PDF
Towards application development for the internet of things
TLDR
We present a domain model for applications in the Internet of Things, based on a survey of recently proposed IoT applications from the real world that represent a wide class of behaviors found in IoT use cases. Expand
  • 40
  • 2
  • PDF
Towards Cooperative Localization of Wearable Sensors using Accelerometers and Cameras
TLDR
This work describes a new approach for localizing people by cooperative sensor fusion of lightweight camera and wearable accelerometer measurements. Expand
  • 25
  • 2
A Scalable Parallel Deduplication Algorithm
TLDR
In this paper, we present our parallel deduplication algorithm, called FER- APARDA. Expand
  • 15
  • 2