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Reflectance Anisotropy from MODIS for Albedo Retrieval from a Single Directional Reflectance

Hu Zhang, Mengzhuo Zhao, Ziti Jiao, Yi Lian, Lei Chen, Lei Cui, Xiaoning Zhang, Yan Liu, Yadong Dong, Da Qian, Yiting Wang, Juan Li (+1 others)
2022 Remote Sensing  
With the exception of the hotspot and large viewing-zenith-angle area in the forward hemisphere, the F-based shortwave albedo has high consistency with the MODIS albedo product.  ...  LCT- and NDVI-based F were also extracted from the corresponding subset. Then, the F-based albedo was derived from simulated or satellite directional reflectance and the anisotropic information of F.  ...  Acknowledgments: We are grateful for the careful review and valuable comments provided by the anonymous reviewers. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs14153627 fatcat:uvua3564wranlorlxeu5gbzu5a

The Classification of Reflectance Anisotropy and Its Application in Albedo Retrieval

Mengzhuo Zhao, Hu Zhang, Cancan Chen, Chenxia Wang, Yan Liu, Juan Li, Tiejun Cui
2022 Atmosphere  
Finally, the BRDF archetype A2P2 was taken as prior knowledge to retrieve albedo from a different number of MODIS observations, and the result was validated by the high-quality MODIS albedo product.  ...  The effect of surface anisotropy and observation noise on albedo retrieval were explored based on simulated MODIS reflectance.  ...  Acknowledgments: We are grateful for the careful review and valuable comments provided by the anonymous reviewers. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/atmos13081182 fatcat:l7j63yjb2jegvorwvgo4azvxjy

The Application of Image Retrieval Technology in the Prevention of Diseases and Pests in Fruit Trees [chapter]

Wang Zhi-jun, Liu Xin, Jiang Meng, Cheng Shu-han
2014 IFIP Advances in Information and Communication Technology  
Image retrieval technology into diseases and pests detection is an important way to improve the fruit tree management level and the quality and quantity of the fruit.  ...  Diseases and pests in fruit trees is a key factor influencing the quality and quantity of fruit.  ...  It has obvious advantages: speed and high accuracy. Color-Based Retrieval Color Histogram is the most common methods of color specification [4] . The thought is color space histogram matching.  ... 
doi:10.1007/978-3-642-54344-9_20 fatcat:5kkqtnf6n5d4ve7jwep2m6tby4

BIG: An agent for resource-bounded information gathering and decision making

Victor Lesser, Bryan Horling, Frank Klassner, Anita Raja, Thomas Wagner, Shelley XQ. Zhang
2000 Artificial Intelligence  
gathering approaches, extracts information from both unstructured and structured documents, and uses the extracted information to refine its search and processing activities.  ...  The large number of information sources and their different levels of accessibility, reliability and associated costs present a complex information gathering control problem.  ...  Acknowledgements We would like to thank the reviewers for their thoughtful comments and editing suggestions that served to improve the overall quality of this paper.  ... 
doi:10.1016/s0004-3702(00)00005-9 fatcat:wwxxj2zlzfhchddvetkwry4c2y

Resource bounded searches in an information marketplace

V. Lesser, B. Horling, A. Rja, Xiaoqin Zhang, T. Wagner
2000 IEEE Internet Computing  
A dvances in information retrieval (IR) technologies have led to the development of such tools as AltaVista and Google, which give information seekers a starting point for their searches.  ...  Although its techniques are general enough to apply to a wide range of domains, BIG specifically helps clients pick software packages.  ...  links; however, in addition to locating relevant information, BIG analyzes the documents using a variety of techniques that include natural language text-extraction and site-specific wrapper utilities.  ... 
doi:10.1109/4236.832946 fatcat:wfbrwuujrjdx5hon6t4npllbyi

Automated retrieval of project three-dimensional CAD objects in range point clouds to support automated dimensional QA/QC

Frederic N. Bosche, Carl T. Haas
2008 Journal of Information Technology in Construction  
, 3D positioning technologies and 3D laser scanners -to develop a method for automated retrieval of 3D CAD model objects in 3D laser scanner range images.  ...  This approach for automated CAD object retrieval allows for the automated and accurate segmentation of the as-built cloud corresponding to each project 3D CAD object, and it is robust with respect to occlusions  ...  advancement tracking, productivity tracking, 3D image database information retrieval, etc.  ... 
dblp:journals/itcon/BoscheH08 fatcat:gi5kgrwxcrgmfcdtkudzsbojo4

TRANSPATH®—A High Quality Database Focused on Signal Transduction

Claudia Choi, Mathias Krull, Alexander Kel, Olga Kel-Margoulis, Susanne Pistor, Anatolij Potapov, Nico Voss, Edgar Wingender
2004 Comparative and Functional Genomics  
Manual data extraction focuses on direct reactions between signalling molecules and the experimental evidence for them, including species of genes/proteins used in individual experiments, experimental  ...  This combination of materials and methods is used in TRANSPATH®to assign a quality value to each experimentally proven reaction, which reflects the probability that this reaction would happen under physiological  ...  We are grateful to the whole BIOBASE team for stimulating discussions and for their help.  ... 
doi:10.1002/cfg.386 pmid:18629064 pmcid:PMC2447348 fatcat:6rkunixtcrbhbabbhbujafzfyq

An Intelligent Advertisement Short Video Production System via Multi-Modal Retrieval

Yanheng Wei, Lianghua Huang, Yanhao Zhang, Yun Zheng, Pan Pan
2022 Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval  
Figure 1: Example result of intelligent short video production based on multi-modal retrieval.  ...  This module is also to perform the task of retrieval query extraction, that is, the script is further extracted through functions such as sentence segmentation and keyword extraction to extract the query  ...  To measure the CPU & GPU time of end-to-end query execution, we specifically evaluate the productivity of different modules of the system.  ... 
doi:10.1145/3477495.3536323 fatcat:fltabfqd3jbjbimrnvbkar6pwa

Building query optimizers for information extraction

Alpa Jain, Panagiotis Ipeirotis, Luis Gravano
2009 SIGMOD record  
We show how, in our extraction-based scenario, query processing can be decomposed into a sequence of basic steps: retrieving relevant text documents, extracting relations from the documents, and joining  ...  We identify execution efficiency and output quality as the two critical properties of a query execution, and argue that an optimization approach needs to consider both properties.  ...  Specifically, we derived models for the output quality as a function of the information extraction systems and their parameters (e.g., knob settings), the document retrieval strategies, as well as the  ... 
doi:10.1145/1519103.1519108 fatcat:pq6q6cntqnfpjncupq6ajnurga

Evaluation of BRDF Archetypes for Representing Surface Reflectance Anisotropy Using MODIS BRDF Data

Hu Zhang, Ziti Jiao, Yadong Dong, Xiaowen Li
2015 Remote Sensing  
The consistency of the directional reflectance between the BRDF archetypes and MODIS BRDFs in nadir-view, hotspot and entire viewing hemisphere at 30° and 50° solar geometries were also examined.  ...  Bidirectional reflectance distribution function (BRDF) archetypes extracted from the Moderate Resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo product over the global Earth Observing System Land  ...  Acknowledgments This work was supported by the National Basic Research Program (973 Program, 2013CB733400), the NSFC (41171261) and the National High-tech Research and Development Program (863 Program,  ... 
doi:10.3390/rs70607826 fatcat:taydlfalx5gtbi7hl3awrv6ocu

SCATSAT-1 Scatterometer Data Processing

Devang Mankad, Rajesh Sikhakolli, Puja Kakkar, Qamer Saquib, Krishna Murari Agrawal, Suresh Gurjar, Dinesh Kumar Jain, V. M. Ramanujam, Pradeep Thapliyal
2019 Current Science  
This article highlights various levels of operational data products as well as algorithms used for deriving radar backscatter and retrieving wind vector data from scatterometer measurements.  ...  The mission mainly caters to oceanographic applications and weather forecasting, with the data being extensively used for cyclogenesis predictions across the globe and specifically, the tropical region  ...  We also thank anonymous reviewers for their suggestions for improving the quality of the paper. doi: 10.18520/cs/v117/i6/950-958  ... 
doi:10.18520/cs/v117/i6/950-958 fatcat:6vledg4yujdfja4mssgeu7w4j4

Generating Focused Topic-Specific Sentiment Lexicons

Valentin Jijkoun, Maarten de Rijke, Wouter Weerkamp
2010 Annual Meeting of the Association for Computational Linguistics  
quality of the generated lexicons both manually and using a TREC Blog track test set for opinionated blog post retrieval.  ...  We motivate the need for such lexicons in the field of media analysis, describe a bootstrapping method for generating a topic-specific lexicon from a general purpose polarity lexicon, and evaluate the  ...  Acknowledgements This research was supported by the European Union's ICT Policy Support Programme as part of the Competitiveness and Innovation Framework Programme, CIP ICT-PSP under grant agreement nr  ... 
dblp:conf/acl/JijkounRW10 fatcat:27wcp2h2yrcyjicxwwrsomeckq

Research Directions, Challenges and Issues in Opinion Mining

Periakaruppan Sudhakaran, Shanmugasundaram Hariharan, Joan Lu
2013 International Journal of Advanced Science and Technology  
In this paper, we analyze the basics of opinion mining, challenges, pros & cons of past opinion mining systems and provide some directions for the future research work, focusing on the challenges and issues  ...  Rapid growth of Internet and availability of user reviews on the web for any product has provided a need for an effective system to analyze the web reviews.  ...  Based on the specifications the low-quality reviews are separated from high-quality ones then summarization is done.  ... 
doi:10.14257/ijast.2013.60.01 fatcat:vsb5anbrjfddvit64yw7tfk5q4

Generating, Refining and Using Sentiment Lexicons [chapter]

Maarten de Rijke, Valentin Jijkoun, Fons Laan, Wouter Weerkamp, Paul Ackermans, Gijs Geleijnse
2012 Essential Speech and Language Technology for Dutch  
author(s) and source are credited.  ...  This chapter is distributed under the terms of the Creative Commons Attribution Noncommercial License, which permits any noncommercial use, distribution, and reproduction in any medium, provided the original  ...  The first stage of the product design process is to identify unmet needs and demands of users for a specific product or a class of products.  ... 
doi:10.1007/978-3-642-30910-6_20 dblp:series/tanlp/RijkeJLWAG13 fatcat:jo63nb7jcvhczoul72dbdkwcfm

Enterprise search in the big data era

Yunyao Li, Ziyang Liu, Huaiyu Zhu
2014 Proceedings of the VLDB Endowment  
This tutorial presents an organized overview of these challenges and opportunities, and reviews the state-of-the-art techniques for building a reliable and high quality enterprise search engine, in the  ...  Enterprise search allows users in an enterprise to retrieve desired information through a simple search interface. It is widely viewed as an important productivity tool within an enterprise.  ...  TUTORIAL OUTLINE Data Analysis at Backend The goal of the backend is to extract and derive as much information as possible from the source data so that high quality search results can be returned for  ... 
doi:10.14778/2733004.2733071 fatcat:k6zeenyokbfohfv7zaiza2d2hm
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