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Visual analytics tool for the interpretation of hidden states in recurrent neural networks

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Visual Computing for Industry,Biomedicine,and Art 2021年第1期4卷 233-245页

作者： Rafael Garcia tanja Munz Daniel Weiskopf VISUS University of Stuttgart70569 StuttgartGermany

In this paper,we introduce a visual analytics approach aimed at helping machine learning experts analyze the hidden states of layers in recurrent neural *** technique allows the user to interactively inspect how hidden states store and process information throughout the feeding of an input sequence into the *** technique can help answer questions,such as which parts of the input data have a higher impact on the prediction and how the model correlates each hidden state configuration with a certain *** visual analytics approach comprises several components:First,our input visualization shows the input sequence and how it relates to the output(using color coding).In addition,hidden states are visualized through a nonlinear projection into a 2-D visualization space using t-distributed stochastic neighbor embedding to understand the shape of the space of the hidden *** are also employed to show the details of the evolution of the hidden state ***,a time-multi-class heatmap matrix visualizes the evolution of the expected predictions for multi-class classifiers,and a histogram indicates the distances between the hidden states within the original *** different visualizations are shown simultaneously in multiple views and support brushing-and-linking to facilitate the analysis of the classifications and debugging for misclassified input *** demonstrate the capability of our approach,we discuss two typical use cases for long short-term memory models applied to two widely used natural language processing datasets.

关键词： Visual analytics Visualization Machine learning Classification Recurrent neural networks Long shortterm memory Hidden states Interpretability Natural language processing Nonlinear projection

Creation and control of high-dimensional multi-partite classically entangled light

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Light(Science & Applications) 2021年第5期10卷 796-805页

作者： Yjie Shen Iaac Nape Xilin Yang Xing Fu mali Gong Darryl Naidoo Andrew Forbes School of Physics University of the WitwatersrandPrivate Bag 3Wits 2050South Africa State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua University100084 BeijingChina Electrical and Computer Engineering Department University of CaliforniaLos AngelesCA 90095USA Key Laboratory of Photonic Control Technology(Tsinghua University) Ministry of Education100084 BeijingChina CSIR National Laser Centre PO Box 395Pretoria 0001South Africa Optoelectronics Research Centre University of SouthamptonSouthampton S0171BJUK

Vector beams,non-separable in spatial mode and polarisation,have emerged as enabling tools in many diverse applications,from communication to *** applicability has been achieved by sophisticated laser designs controlling the spin and orbital angular momentum,but so far is restricted to only two-dimensional *** we demonstrate the first vectorially structured light created and fully controlled in eight dimensions,a new *** externally modulate our beam to control,for the frst time,the complete set of classical Greenberger-Horne-Zeilinger(GHZ)states in paraxial structured light beams,in analogy with high-dimensional multi-partite quantum entangled states,and introduce a new tomography method to verify their *** complete theoretical framework reveals a rich parameter space for further extending the dimensionality and degrees of freedom,opening new pathways for vetorilly structured light in the classical and quantum regimes.

关键词： quantum analogy dimensions

Exploring visual quality of multidimensional time series projections

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Visual Informatics 2024年第2期8卷 27-42页

作者： tanja Munz-Körner Daniel Weiskopf Visualization Research Center(VISUS) University of StuttgartAllmandring 19StuttgartGermany

Dimensionality reduction is often used to project time series data from multidimensional to two-dimensional space to generate visual representations of the temporal *** this context,we address the problem of multidimensional time series visualization by presenting a new method to show and handle projection errors introduced by dimensionality reduction techniques on multidimensional temporal *** visualization,subsequent time instances are rendered as dots that are connected by lines or curves to indicate the temporal ***,inevitable projection artifacts may lead to poor visualization quality and misinterpretation of the temporal *** projected data points,inaccurate variations in the distances between projected time instances,and intersections of connecting lines could lead to wrong assumptions about the original *** adapt local and global quality metrics to measure the visual quality along the projected time series,and we introduce a model to assess the projection error at intersecting *** serve as a basis for our new uncertainty visualization techniques that use different visual encodings and interactions to indicate,communicate,and work with the visualization uncertainty from projection errors and artifacts along the timeline of data points,their connections,and *** approach is agnostic to the projection method and works for linear and non-linear dimensionality reduction methods alike.

关键词： Time series Multidimensional data Dimensionality reduction Projection errors Visual quality Visual analytics

Using benthic macrofauna to assess environmental quality of four intertidal mudflats in Hong Kong and Shenzhen Coast

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Acta Oceanologica Sinica 2003年第2期22卷 309-319页

作者： CaiLizhe NoraF.Y.Tam TeresaW.Y.Wong mali GaoYang Yuk-ShanWong ResearchLabortoryofSEDCofMarineEnvironmentalScience EnivonmentalScienceResearchCenterXiamenUniversityXiamen361005China DepartmentofBiologyandChermistryandCenterforCoastalPollutionControl CityUniversityofHongKongHKSARChina

Intertidal zone is a significant wetland between land and ocean. It plays an important rolein maintaining local ecological balance. Both Mai Po and Futian intertidal mudflats are located in Shenzhen Bay and are important 'refueling' point along the East Asian/Australian flyway of migratory birds. The environmental quality of Mai Po and Futian mudflats have aroused great concern due to rapid economic developments in Hong Kong and Shenzhen in recent decades. Macroinfauna of Mai Po and Futian mudflats was investigated in December 2000 and the faunal data were used to assess their environmental quality. Two other mudflats, namely Ma Wan Typhoon Shelter (a more disturbed area) and Luk Keng intertidal mudflat (a place with relatively less human disturbance), were also sampled for macroinfauna and used as reference mudflats. Shannon - Weaver species diversity index (Isd), biotic coefficient (Cb) and macrofaunal pollution index (Imp) of the macrofauna community on four intertidal mudflats were used to determine their environmental quality. The results showed that Luk Keng intertidal mudflat was unpolluted, Mai Po and Futian mudflats were slightly polluted, and Ma Wan was moderately polluted. The pollution in Ma Wan Typhoon Shelter mainly came from various types of rubbish and fishing boats that disturbed the sediment, while pollution sources in Mai Po and Futian mudflats were discharges of industrial water, municipal sewage and from nearby rivers.

关键词： Biotic index macrofauna intertidal mudflat environmental quality

Polymorphisms in microRNA targets： a source of new molecular markers for male reproduction

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Asian Journal of Andrology 2011年第3期13卷 505-508页

作者： Jernej Ogorevc Peter Dovc tanja Kunej Department of Animal Science Biotechnical Faculty University of Liubljana Domzale 1230 Slovenia

Dear Editor, Herein we discuss the impact of microRNA （miRNA） target genetic variability in male infertility genes, which can represent a source of novel molecular-genetic markers that can be used for the diagnosis of male infertility. Male-factor infertility accounts for 30%--40% of infertility cases. The causes of spermatogenetic failure found in most cases of non-obstructive azoospermia or severe oligozoospermia still remain idiopathic.

关键词： Physical sciences Condensed matter

Humanistic Content in the Chinese Language Textbooks for Nine Year Compulsory Education

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Frontiers of Education in China 2011年第2期6卷 293-309页

作者： YANG Xiao tanja SARGENT School of Teacher Education Shanxi Normal UniversityLinfen 041000China Graduate School of Education RutgersThe State University of New JerseyNew BrunswickNJ 08901USA

In this paper,we employ quantitative and qualitative content analysis to investigate the nature of humanistic value content in the Chinese language arts curriculum and whether or not this varies across old and new versions of the *** findings illustrate the various dimensions of humanistic value content in the Chinese language arts curriculum and suggest that there is as much variation across different versions of the new textbooks as there is between old and new versions of the curriculum.

关键词： humanism Chinese language curriculum New Curriculum reform

Single-beam two-photon three-dimensional optical storage in a pyrryl-substituted fulgide photochromic material

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Chinese Science Bulletin 2001年第22期46卷 1856-1859页

作者： Ningfang Liao mali Gong Duanyi Xu Guosheng Qi Kai Zhang Tsing Hua Univ Dept Precis Instruments Beijing 100084 Peoples R China

We introduce a high-density three-dimensional optical data storage approach by using a pyrryl-sub-stituted fulgide photochromic material with a method of single-beam two-photon recording and fluorescence confocal readout. The detailed information about the photochromic material and the experimental setup are presented. The experiments about multi-layered recording and readout are carried out with a 100-μm-thick transparent photochromic material film. The results show that the lateral resolution is better than 1 μm, and the longitudinal resolution is about 3 μm. Besides, the readout times for the recorded data aredesirable when using a readout laser power smaller than 5 mW.

关键词： two-photon optical data storage photochromic material confocal microscope.

Sustainable Development and Transition of Traditional Retailing Centers in Beijing from Consumers' Perspective

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Chinese Journal of Population,Resources and Environment 2010年第2期8卷 83-87页

作者： Dong mali Chen Tian Liu Ran Institue of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

Based on the consumer questionnaires of the three traditional retailing centers,Qianmen,Wangfujing and Xidan in Beijing,this article analyzes the present features of consumer composition in the three retailing *** is more,the evolution course and function transition of traditional retailing centers is revealed based on the changing of consumer composition in different ***,the renewal method and development trends of traditional retailing centers are discussed based on the evaluation results in consumers'perspective.

关键词： consumer traditional retailing center transition questionnaire Beijing

Surface Characteristics Measurement Using Computer Vision:A Review

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Computer Modeling in Engineering & Sciences 2023年第5期135卷 917-1005页

作者： AbdulWahab Hashmi Harlal Singh mali Anoj Meena Mohammad Farukh Hashmi Neeraj Dhanraj Bokde Department of Mechanical Engineering Advanced Manufacturing and Mechatronics LabMalaviya National Institute of TechnologyJaipur302017India Department of Electronics and Communication Engineering National Institute of TechnologyWarangal506004India Department of Civil and Architectural Engineering Aarhus UniversityAarhus8000Denmark Center for Quantitative Genetics and Genomics Aarhus UniversityAarhus8000Denmark

Computer vision provides image-based solutions to inspect and investigate the quality of the surface to be *** any components to execute their intended functions and operations,surface quality is considered equally significant to dimensional *** Roughness(Ra)is a widely recognized measure to evaluate and investigate the surface quality of machined *** conventional methods and approaches to measure the surface roughness are not feasible and appropriate in industries claiming 100%inspection and examination because of the time and efforts involved in performing the ***,Machine vision has emerged as the innovative approach to executing the surface roughness *** can provide economic,automated,quick,and reliable *** paper discusses the characterization of the surface texture of surfaces of traditional or non-traditional manufactured parts through a computer/machine vision approach and assessment of the surface characteristics,i.e.,surface roughness,waviness,flatness,surface texture,etc.,machine vision *** paper will also discuss multiple machine vision techniques for different manufacturing processes to perform the surface characterization measurement.

关键词： Machine vision surface roughness computer vision machining parameters surface characterization