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A THREE-STEP SPATIAL-TEMPORAL-SEMANTIC CLUSTERING METHOD FOR HUMAN ACTIVITY PATTERN ANALYSIS
Human Activity Pattern Clustering Twitter
2016/7/8
How people move in cities and what they do in various locations at different times form human activity patterns. Human activity pattern plays a key role in in urban planning, traffic forecasting, publ...
TWO-STEP CAMERA CALIBRATION METHOD DEVELOPED FOR MICRO UAV'S
Photogrammetry two-step camera calibration micro UAV ultra wide lenses
2016/7/5
The development of unmanned aerial vehicles (UAVs) and continuous price reduction of unmanned systems attracted us to this research. Professional measuring systems are dozens of times more expensive a...
A First Step Towards Automated Detection of Buffer Overrun Vulnerabilities
Towards Automated Detection Buffer Overrun Vulnerabilities
2016/5/24
We describe a new technique for finding potential buffer overrun vulnerabilities in security-critical C code. The key to success is to use static analysis: we formulate detection of buffer overruns as...
Designing Effective Step-By-Step Assembly Instructions
Visualization Assembly Instructions
2016/5/24
We present design principles for creating effective assembly instructions
and a system that is based on these principles. The principles
are drawn from cognitive psychology research which investigat...
CAPACITY BUILDING NETWORKS FOR EARTH OBSERVATION AND GEO-ICT A First Step towards a Virtual University
Earth observation Geo-information capacity development e-learning globalization educational networks
2015/12/22
Geo-ICT plays an increasing role in the management of spatial processes at different levels ranging from local to global scale. A world wide scientific and professional community develops and implemen...
FREEFORM CURVES AND SURFACES IN DBMS: A STEP FORWARD IN SPATIAL DATA INTEGRATION
Databases CAD GIS
2015/8/28
Spatial data integration is of great importance for many applications and particularly for emergency response. Besides the variety of
challenges in 2D, increasing attention is given to integration of...
Instability of one-step replica-symmetry-broken phase in satisfiability problems
Solutions random stability high energy density
2015/8/21
We reconsider the one-step replica-symmetry-breaking (1RSB) solutions of two random combina- torial problems: k-XORSAT and k-SAT. We present a general method for establishing the stability of these so...
THE USABILITY OF VECTORIZATION AND A NEW POINT MATCHING PROCEDURE AS FIRST STEP IN CONFLATING RASTER AND VECTOR MAPS
cartography GIS integration algorithm vector raster
2015/8/17
The growing fields of GIS application (local administration, tourism, archaeology, geology, ...) has increased the interest in studying the information sharing from different geographic databases, als...
A Non-Linear,Two-Step Estimation Algorithm For Calibrating Solid-State Strapdown Magnetometers
Magnetometer Heading Non-Linear Estimation
2015/6/29
This paper presents a new algorithm for calibrating modern, solid-state strapdown magnetometers. The traditional method for cali brating these sensors is a cumbersome procedure called “swinging” which...
This paper studies non-gaited, multi-step motion planning, to enable limbed robo ts to free-climb vertical rock. The application of a multi-step planner to a real free-climbing robot is described. Thi...
Under the direction of Latha Venkataraman, associate professor of applied physics at Columbia Engineering, researchers have designed a new technique to create a single-molecule diode, and, in doing so...
A SINGLE STEP CALIBRATION PROCEDURE FOR IMU/GPS IN AERIAL PHOTOGRAMMETRY
Orientation System Calibration
2015/3/24
System calibration is required in integrated IMU/GPS systems to account for the spatial offset and misalignment between IMU, GPS
and camera frames; synchronization is to be maintained, to predict IM...
EXTRACTING 3D EDGEL HYPOTHESES FROM MULTIPLE CALIBRATED IMAGES: A STEP TOWARDS THE RECONSTRUCTION OF CURVED AND STRAIGHT OBJECT BOUNDARY LINES
Photogrammetry 3D Reconstruction
2015/3/24
HR aerial images of urban landscapes, these low-level features can be used to build 3D lines that can be injected as constraint lines
in addition to other features, such as 3D points and 3D segments,...
A Multi-step Reaction Model for Stratified-Charge Combustion in Wave Rotors
Two-Step Reaction Multi-species Model One-Dimensional Euler Equations
2015/1/12
Testing of a wave-rotor constant-volume combustor (WRCVC) showed the viability of the application of wave rotors as a pressure gain combustor. The aero-thermal design of the WRCVC rig had originally b...
A STEP TOWARDS SEMANTIC-BASED BUILDING RECONSTRUCTION USING MARKOV-RANDOM-FIELDS
Building reconstruction Digital surface models Markov-Random-Fields Topology
2014/12/31
In this paper we describe a new concept for the reconstruction of buildings. In contrast to most of the published approaches, we link the reconstruction process with the building interpretation. With ...