NDLI: CitySpectrum: a non-negative tensor factorization approach

Please wait, while we are loading the content...

Open data kit: applications of mobile devices in the developing world

StudentLife: assessing mental health, academic performance and behavioral trends of college students using smartphones

SatScore: uncovering and avoiding a principled pitfall in responsiveness measurements of app launches

CAMY: applying a pet dog analogy to everyday ubicomp products

From today's augmented houses to tomorrow's smart homes: new directions for home automation research

Graph-based data fusion of pedometer and WiFi measurements for mobile indoor positioning

Sensing WiFi packets in the air: practicality and implications in urban mobility monitoring

Capacitive near-field communication for ubiquitous interaction and perception

Detecting hybrid and electric vehicles using a smartphone

Using electrodermal activity to recognize ease of engagement in children during social interactions

Identifying outlets at which electrical appliances are used by electrical wire sensing to gain positional information about appliance use

MobileMiner: mining your frequent patterns on your phone

Energy diet: energy feedback on a bathroom scale

BioScope: an extensible bandage system for facilitating data collection in nursing assessments

Projective testing of diurnal collective emotion

IdentityLink: user-device linking through visual and RF-signal cues

Privacy behaviors of lifeloggers using wearable cameras

CheckInside: a fine-grained indoor location-based social network

Intelligent sleep stage mining service with smartphones

Steered crowdsensing: incentive design towards quality-oriented place-centric crowdsensing

Secure bootstrapping of cloud-managed ubiquitous displays

CrossNavi: enabling real-time crossroad navigation for the blind with commodity phones

The architecture of innovation: tracking face-to-face interactions with ubicomp technologies

Robot-based augmentative and alternative communication for nonverbal children with communication disorders

InterruptMe: designing intelligent prompting mechanisms for pervasive applications

Car-level congestion and position estimation for railway trips using mobile phones

High5: promoting interpersonal hand-to-hand touch for vibrant workplace with electrodermal sensor watches

BatteryExtender: an adaptive user-guided tool for power management of mobile devices

Identity crisis of ubicomp?: mapping 15 years of the field's development and paradigm change

UbiComp for animal welfare: envisioning smart environments for kenneled dogs

MobileRF: a robust device-free tracking system based on a hybrid neural network HMM classifier

Assessing the potential of ride-sharing using mobile and social data: a tale of four cities

MaLoc: a practical magnetic fingerprinting approach to indoor localization using smartphones

Mobile maestro: enabling immersive multi-speaker audio applications on commodity mobile devices

Persuasive technology to improve eating behavior using a sensor-embedded fork

A self-calibrating approach to whole-home contactless power consumption sensing

A hierarchical hidden semi-Markov model for modeling mobility data

Energy advisors at work: charity work practices to support people in fuel poverty

Gait analysis using shoe-worn inertial sensors: how is foot clearance related to walking speed?

PriCal: context-adaptive privacy in ambient calendar displays

Leveraging directional antenna capabilities for fine-grained gesture recognition

Money walks: a human-centric study on the economics of personal mobile data

Breaking boundaries: the uses & gratifications of grindr

Health chair: implicitly sensing heart and respiratory rate

CrowdRecruiter: selecting participants for piggyback crowdsensing under probabilistic coverage constraint

Secure and private proofs for location-based activity summaries in urban areas

Chroma: a wearable augmented-reality solution for color blindness

Lunch line: using public displays and mobile devices to encourage healthy eating in an organization

Moving towards a real-time system for automatically recognizing stereotypical motor movements in individuals on the autism spectrum using wireless accelerometry

Assessing the availability of users to engage in just-in-time intervention in the natural environment

Modeling heterogeneous routing decisions in trajectories for driving experience learning

Powerlet: an active battery interface for smartphones

The 4C framework: principles of interaction in digital ecosystems

Intruders versus intrusiveness: teens' and parents' perspectives on home-entryway surveillance

Indoor-ALPS: an adaptive indoor location prediction system

CitySpectrum: a non-negative tensor factorization approach

A battery-free object localization and motion sensing platform

User interaction-based profiling system for Android application tuning

Bilicam: using mobile phones to monitor newborn jaundice

Smart-mat: recognizing and counting gym exercises with low-cost resistive pressure sensing matrix

Mining multivariate time series with mixed sampling rates

Conversations with my washing machine: an in-the-wild study of demand shifting with self-generated energy

Mercury: an application store for open display networks

BendID: flexible interface for localized deformation recognition

Connecting personal-scale sensing and networked community behavior to infer human activities

Probabilistic identification of visited point-of-interest for personalized automatic check-in

Towards circadian computing: "early to bed and early to rise" makes some of us unhealthy and sleep deprived

Diagnosing New York city's noises with ubiquitous data

Zero-effort payments: design, deployment, and lessons

Exploring delegate engagement with an augmented conference

SensoryPaint: a multimodal sensory intervention for children with neurodevelopmental disorders

Geofencing 2.0: taking location-based notifications to the next level

PocketParker: pocketsourcing parking lot availability

Mobile video ad caching on smartphones

Creative collaboration with a social robot

Monitoring household activities and user location with a cheap, unobtrusive thermal sensor array

LoCo: a ready-to-deploy framework for efficient room localization using Wi-Fi

Classifying the mode of transportation on mobile phones using GIS information

Pulse: low bitrate wireless magnetic communication for smartphones

SENSeTREAM: enhancing online live experience with sensor-federated video stream using animated two-dimensional code

Classifying children with 3D depth cameras for enabling children's safety applications

Powering wireless sensor nodes with ambient temperature changes

Predicting activity attendance in event-based social networks: content, context and social influence

Indoor air quality monitoring system for smart buildings

AiD: augmented information display

GazeHorizon: enabling passers-by to interact with public displays by gaze

Challenges and opportunities in data mining contact lists for inferring relationships

Heart rate monitoring through the surface of a drinkware

Orchestration support for participatory sensing campaigns

SmudgeSafe: geometric image transformations for smudge-resistant user authentication

Container throughput estimation leveraging ship GPS traces and open data

Collective use of a situated display to encourage positive behaviors in children with behavioral challenges

Large-scale evaluation of call-availability prediction

Elastic pathing: your speed is enough to track you

AirLink: sharing files between multiple devices using in-air gestures

CitySpectrum: a non-negative tensor factorization approach

Content Provider	ACM Digital Library
Author	Shibasaki, Ryosuke Song, Xuan Fan, Zipei
Abstract	People flow at a citywide level is in a mixed state with several basic patterns (e.g. commuting, working, commercial), and it is therefore difficult to extract useful information from such a mixture of patterns directly. In this paper, we proposed a novel tensor factorization approach to modeling city dynamics in a basic life pattern space (CitySpectral Space). To obtain the CitySpectrum, we utilized Non-negative Tensor Factorization (NTF) to decompose a people flow tensor into basic life pattern tensors, described by three bases i.e. the intensity variation among different regions, the time-of-day and the sample days. We apply our approach to a big mobile phone GPS log dataset (containing 1.6 million users) to model the fluctuation in people flow before and after the Great East Japan Earthquake from a CitySpectral perspective. In addition, our framework is extensible to a variety of auxiliary spatial-temporal data. We parametrize a people flow with a spatial distribution of the Points of Interest (POIs) to quantitatively analyze the relationship between human mobility and POI distribution. Based on the parametric people flow, we propose a spectral approach for a site-selection recommendation and people flow simulation in another similar area using POI distribution.
Starting Page	213
Ending Page	223
Page Count	11
File Format	PDF QT / MOV
ISBN	9781450329682
DOI	10.1145/2632048.2636073
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-09-13
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Non-negative tensor factorization Human mobility
Content Type	Video Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in