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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Unit commitment problems and their compact and simple models, algorithms, and applications
Unit commitment problems 机组组合 电力系统优化
2023/4/14
机组组合(UC)作为电力系统优化运行的基本问题之一，其模型的质量严重影响着求解器的求解效率，如何建立高质量的UC问题模型则成为近年研究的热点。为此，我们从大规模电力系统UC问题的模型、算法和应用方面展开研究，主要内容包括：针对单机组组合(1UC)问题，基于Facet、凸包以及动态规划相关理论，研究全新的1UC问题统一建模框架，给出1UC问题一系列适用于不同场景、不同算法的高质量模型；基于滑动窗口、...
COMPACT AND HYBRID FEATURE DESCRIPTION FOR BUILDING EXTRACTION
Building Extraction Machine Learning Local Feature Descriptor Binary Uniformity Tests Binary Random Trees Superpixel segmentation
2017/7/13
Building extraction in aerial orthophotos is crucial for various applications. Currently, deep learning has been shown to be successful in addressing building extraction with high accuracy and high ro...
New Design Results in Compact,Highly Efficient Frequency Comb
New Design Results Compact Highly Efficient Frequency Comb
2017/3/30
Northwestern Engineering researchers have designed a quantum cascade laser (QCL) frequency comb that is dramatically more efficient than previous iterations. Led by Manijeh Razeghi, researchers i...
INITIAL TESTS AND ACCURACY ASSESMENT OF A COMPACT MOBILE LASER SCANNING SYSTEM
Mobile Laser Scanning LIDAR Point Cloud Accuracy Assessment
2016/7/5
Mobile laser scanning (MLS) is a faster and cost-effective alternative to static laser scanning, even though there is a slight trade-off in accuracy. This contribution describes a compact mobile laser...
COMPACT HYPERSPECTRAL IMAGING SYSTEM (COSI) FOR SMALL REMOTELY PILOTED AIRCRAFT SYSTEMS (RPAS)–SYSTEM OVERVIEW AND FIRST PERFORMANCE EVALUATION RESULTS
Hyperspectral camera RPAS linear variable filters
2016/7/5
This paper gives an overview of the new COmpact hyperSpectral Imaging (COSI) system recently developed at the Flemish Institute for Technological Research (VITO, Belgium) and suitable for remotely pil...
Precise and Compact Modular Procedure Summaries for Heap Manipulating Programs
Languages Verification Experimentation
2016/5/24
We present a strictly bottom-up, summary-based, and precise heap analysis targeted for program verification that performs strong updates to heap locations at call sites. We first present a theory of h...
Learning Compact Face Representation: Packing a Face into an int32
face recognition face search deep learning
2016/1/22
This paper addresses the problem of producing very compact representation of a face image for large-scale face search and analysis tasks. In tradition, the compactness of face rep-resentation is achie...
Fully Key-Homomorphic Encryption, Arithmetic Circuit ABE, and Compact Garbled Circuits
Arithmetic Circuit ABE Compact Garbled Circuits
2015/8/5
We construct the rst (key-policy) attribute-based encryption (ABE) system with short
secret keys: the size of keys in our system depends only on the depth of the policy circuit,
not its size. Our c...
INITIAL CHECKOUT RESULTS OF THE COMPACT INFRARED CAMERA (CIRC) FOR EARTH OBSERVATION
thermal infrared imaging uncooled infrared array detector
2015/5/7
Compact Infrared Camera (CIRC) is a technology-demonstration instrument equipped with an uncooled infrared array detector (microbolometer) for space application. CIRC is the first microbolometer sen...
COMPACT HANDHELD FRINGE PROJECTION BASED UNDERWATER 3D-SCANNER
Underwater 3D-scanner fringe projection technique underwater stereo camera calibration
2015/4/23
A new, fringe projection based compact handheld 3D scanner for the surface reconstruction of measurement objects under water is introduced. The weight of the scanner is about 10 kg and can be used in ...
DEVELOPMENT AND TEST OF BLIMP-BASED COMPACT LIDAR POWEWR-LINE INSPECTION SYSTEM
Compact LIDAR Unmanned blimps Transmission line inspection Flight along power-line Safety hazards analysis
2015/4/1
This paper introduces a compact LIDAR system designed to inspect overhead transmission line for maintenance purposes. This LIDAR system is carried by a small unmanned helium airship, which is guided b...
A COMPACT VECTOR-SPACE ALOGARITHM FOR AN ANALYTICAL REDUCTION OF A STEREOGRAM
VECTOR-SPACE ALOGARITHM ANALYTICAL REDUCTION A STEREOGRAM
2014/12/31
The need for variety and better accuracy of the map products used in the rapidly evolving GIS technology has necessitated the use of analytical techniques in photogrammetric data processing. The ready...
Compact bends for multi-mode photonic crystal waveguides with high transmission and suppressed modal crosstalk
Nanophotonics photonic crystals Integrated optics devices Photonic crystal waveguides
2015/8/7
We demonstrate an extremely compact bend for a photonic crystal waveguide supporting three spatial modes. The bend exhibits nearly 100% transmission over a relative bandwidth of 1% with less than 1% c...
The implications of and institutional barriers to compact land development for transportation: Evidence from Bejing
transport land use motorised travel China Beijing
2013/11/21
Land use patterns are believed to affect transportation, while low-capacity land-use management is often seen as one of the primary institutional barriers to sustainable transport. Examining the case ...
Ultra-compact photonic crystal waveguide spatial mode converter and its connection to the optical diode effect
Integrated optics devices Guided waves
2015/8/7
We design an extremely compact photonic crystal waveguide spatial mode converter which converts the fundamental even mode to the higher order odd mode with nearly 100% efficiency. We adapt a pre...