Knowledge manifold
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This document discusses two traditions of network modeling: Newtonian and Einsteinian approaches. It introduces hyperbolic networks as a way to combine nontrivial geometry and trivial dynamics. Hyperbolic networks can explain properties like densification, small-world structure, and scale-free degree distributions seen in real networks. Prior models used trivial geometries that only captured individual properties. The document suggests hyperbolic geometry as a unified framework and provides examples of how it has been applied to image recognition, internet routing, and disease diffusion by focusing on network geodesics.
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Physics NSF_REU Tim Kilmer Poster 2016
This project aims to simulate the density of states and band structure of joined bi-layer graphene using density functional theory (DFT) and compare it to graphene. DFT simulations were performed on joined bi-layer graphene and graphene to calculate potential energy, defect formation energy, and density of states. The bi-layer graphene system was found to be not spin polarized with a low defect formation energy of 0.001 eV per atom. Additionally, the project works to develop a 3D printing process for proposed graphene structures by converting structure files to STL files for printing.
36
For further details contact:
N.RAJASEKARAN B.E M.S 9841091117,9840103301.
IMPULSE TECHNOLOGIES,
Old No 251, New No 304,
2nd Floor,
Arcot road ,
Vadapalani ,
Chennai-26.
www.impulse.net.in
Email: ieeeprojects@yahoo.com/ imbpulse@gmail.com
Vol 8 No 1 - December 2013
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For further details contact:
N.RAJASEKARAN B.E M.S 9841091117,9840103301.
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Old No 251, New No 304,
2nd Floor,
Arcot road ,
Vadapalani ,
Chennai-26.
www.impulse.net.in
Email: ieeeprojects@yahoo.com/ imbpulse@gmail.com
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S. R. Boselin Prabhu, S. Sophia, S. Arthi and K. Vetriselvi
An Efficient Connection between Statistical Software and Database Management System ................... 1
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2) It derives three geometric upper bounds on the error of a single position estimate that are reasonably tight. It also quantifies feasible regions in cooperative positioning scenarios.
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NEXGEN TECHNOLOGY provides total software solutions to its customers. Apsys works closely with the customers to identify their business processes for computerization and help them implement state-of-the-art solutions. By identifying and enhancing their processes through information technology solutions. NEXGEN TECHNOLOGY help it customers optimally use their resources.
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Raj Kumar Nafria is a graduate civil engineer with over 39 years of experience in planning, designing, constructing, and managing infrastructure projects including roads, bridges, flyovers, and buildings. He has extensive experience supervising the construction of major highway bridges and flyovers using modern methods like reinforced concrete and pre-stressed concrete. Currently he works as a senior bridge engineer for a private infrastructure firm advising on bridge and culvert construction for a large World Bank-funded highway project in Gujarat, India.
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http://www3.cs.stonybrook.edu/~chni/publication/ricci-curvature/
--
Analysis of Internet topologies has shown that the Internet topology has negative curvature, measured by Gromov's ``thin triangle condition'', which is tightly related to core congestion and route reliability. In this work we analyze the discrete Ricci curvature of the Internet, defined by Ollivier et al., Lin et al., etc. Ricci curvature measures whether local distances diverge or converge. It is a more local measure which allows us to understand the distribution of curvatures in the network. We show by various Internet data sets that the distribution of Ricci curvature is spread out, suggesting the network topology to be non-homogenous. We also show that the Ricci curvature has interesting connections to both local measures such as node degree and clustering coefficient, global measures such as betweenness centrality and network connectivity, as well as auxiliary attributes such as geographical distances. These observations add to the richness of geometric structures in complex network theory.
November 9, Planning and Control of Unmanned Aircraft Systems in Realistic C...
November 9, Planning and Control of Unmanned Aircraft Systems in Realistic C...University of Colorado at Boulder
The document summarizes research on developing planning and control frameworks for communication-aware coordination of unmanned vehicle networks. It describes using an information-theoretic approach to optimize robot motion to maximize information gain over noisy communication links. Experimental results show decentralized algorithms allow vehicles to form optimal communication chains and relay networks by considering communication constraints. Field experiments demonstrate these approaches can improve tracking performance for heterogeneous teams of unmanned aircraft and vehicles operating in realistic communication environments.SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
Two-ray ground reflection model has been widely used as the propagation model to investigate the
performance of an ad hoc network. But two-ray model is too simple to represent a real world network. A
more realistic model namely shadowing propagation model has been used in this investigation. Under
shadowing propagation model, a mobile node may receive a packet at a signal level that is below a
required threshold level. This low signal level affects the routing protocol as well as the medium access
control protocol of a network. An analytical model has been presented in this paper to investigate the
shadowing effects on the network performance. The analytical model has been verified via simulation
results. Simulation results show that the performance of a network becomes very poor if shadowing
propagation model is used in compare to the simple two-ray model. Two solutions have also been proposed
in this paper to overcome the effects of shadowing. One solution is a physical layer solution and the other
one is a Medium Access Control (MAC) layer solution. Simulation results show that these two solutions
reduce the shadowing effect and improve network performance.
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
Two-ray ground reflection model has been widely used as the propagation model to investigate the
performance of an ad hoc network. But two-ray model is too simple to represent a real world network. A
more realistic model namely shadowing propagation model has been used in this investigation. Under
shadowing propagation model, a mobile node may receive a packet at a signal level that is below a
required threshold level. This low signal level affects the routing protocol as well as the medium access
control protocol of a network. An analytical model has been presented in this paper to investigate the
shadowing effects on the network performance. The analytical model has been verified via simulation
results. Simulation results show that the performance of a network becomes very poor if shadowing
propagation model is used in compare to the simple two-ray model. Two solutions have also been proposed
in this paper to overcome the effects of shadowing. One solution is a physical layer solution and the other
one is a Medium Access Control (MAC) layer solution. Simulation results show that these two solutions
reduce the shadowing effect and improve network performance.
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
Two-ray ground reflection model has been widely used as the propagation model to investigate the
performance of an ad hoc network. But two-ray model is too simple to represent a real world network. A
more realistic model namely shadowing propagation model has been used in this investigation. Under
shadowing propagation model, a mobile node may receive a packet at a signal level that is below a
required threshold level. This low signal level affects the routing protocol as well as the medium access
control protocol of a network. An analytical model has been presented in this paper to investigate the
shadowing effects on the network performance. The analytical model has been verified via simulation
results. Simulation results show that the performance of a network becomes very poor if shadowing
propagation model is used in compare to the simple two-ray model. Two solutions have also been proposed
in this paper to overcome the effects of shadowing. One solution is a physical layer solution and the other
one is a Medium Access Control (MAC) layer solution. Simulation results show that these two solutions
reduce the shadowing effect and improve network performance.
IJCER (www.ijceronline.com) International Journal of computational Engineerin...
This document summarizes a research paper that proposes a new algorithm for congestion control in Wavelength Division Multiplexing (WDM) optical networks. The algorithm aims to improve network survivability and reduce congestion. It analyzes existing congestion issues in WDM networks and formulates the problem the new algorithm seeks to address. The proposed algorithm will be tested through simulations to evaluate its performance at reducing congestion compared to existing strategies. The research has the potential to provide cost-effective solutions for congestion control in developing countries.
Exploring Architected Materials Using Machine Learning
The promise of computer aided manufacturing is to make materializable structures that could not be fabricated using traditional methods. An example is 3D printed lattices, where variation in the lattice geometry and print media can define a vast spectrum of resulting material behaviour, ranging from fully flexible forms to completely stiff examples with high strength. While these “architected materials” offer huge promise for industrial applications, in practice they are difficult to generate and explore digitally, and even harder to simulate for mechanical testing. In this talk I will outline a range of approaches to the study of architected materials using machine learning. I will describe several projects using graph neural networks (GNNs) to model lattice geometry, and report on a few recent works that construct inverse models. These approaches are progress toward better methods for approximation of the material behaviour of the space of all lattice geometries, offering potential for real-time material feedback at the design stage, and a streamlined selection process for architected materials.
Topology ppt
This document discusses network topology and modeling of internet structure. It begins by explaining why network topology is important for tasks like routing, simulation, and analysis. It then describes several models that are commonly used to represent internet topology, including graph models at the router and domain level. Specific topology generation models are also summarized, such as the Barabasi-Albert, Waxman, and transit-stub models. The document concludes by discussing concepts like complex networks, scale-free networks, and power laws that are observed in real-world internet topologies.
Topology ppt
This document discusses network topology and modeling of internet structure. It begins by explaining why network topology is important for tasks like routing, simulation, and analysis. It then describes several models that are commonly used to represent internet topology, including graph models at the router and domain level. Specific topology generation models are also summarized, such as the Barabasi-Albert, Waxman, and transit-stub models. The document concludes by discussing concepts like complex networks, scale-free networks, and power laws that are observed in real-world internet topologies.
Scott Complex Networks
This document discusses complex networks such as social networks, technological networks, and biological networks. It finds that many complex networks exhibit small-world properties with short average path lengths between nodes, as well as scale-free properties with degree distributions that follow a power law. The document aims to characterize network structures, create models to explain properties like clustering and scale-freeness, and predict network behavior, such as resilience or disease transmission.
Similar to Knowledge manifold (20)
Joint InBand Backhauling and Interference Mitigation in 5G Heterogeneous Netw...
Joint InBand Backhauling and Interference Mitigation in 5G Heterogeneous Netw...
International Journal of Engineering and Science Invention (IJESI)
International Journal of Engineering and Science Invention (IJESI)
Topological Data Analysis of Complex Spatial Systems
Topological Data Analysis of Complex Spatial Systems
Reconfigurable_Intelligent_Surfaces_for_Wireless_Communications_Principles_Ch...
Reconfigurable_Intelligent_Surfaces_for_Wireless_Communications_Principles_Ch...
November 9, Planning and Control of Unmanned Aircraft Systems in Realistic C...
November 9, Planning and Control of Unmanned Aircraft Systems in Realistic C...
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
SHADOWING EFFECTS ON ROUTING PROTOCOL OF MULTIHOP AD HOC NETWORKS
IJCER (www.ijceronline.com) International Journal of computational Engineerin...
IJCER (www.ijceronline.com) International Journal of computational Engineerin...
Exploring Architected Materials Using Machine Learning
Exploring Architected Materials Using Machine Learning
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一比一原版美国亚利桑那大学毕业证（ua毕业证书）如何办理
一模一样【微信：A575476】【美国亚利桑那大学毕业证（ua毕业证书）成绩单Offer】【微信：A575476】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
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三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
一比一原版(UniSA毕业证)南澳大学毕业证成绩单如何办理
UniSA毕业证【微信95270640】（南澳大学毕业证高仿学位证书((+《Q微信95270640》))）购买UniSA毕业证修改UniSA成绩单购买南澳大学毕业证办UniSA文凭办高仿毕业证南澳大学毕业证购买修改成绩单挂科退学如何进行学历认证留学退学办毕业证书/ 出国留学无法毕业买毕业证留学被劝退买毕业证（非正常毕业教育部认证咨询） University of South Australia
办国外南澳大学南澳大学毕业证假文凭教育部学历学位认证留信认证大使馆认证留学回国人员证明修改成绩单信封申请学校offer录取通知书在读证明offer letter。
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国外南澳大学南澳大学毕业证假文凭办理过程：
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2开始安排制作毕业证成绩单电子图；
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5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）。让我们的父母幸福快乐地度过一生挽着清风芒耀似金的骄阳如将之绽放的花蕾一般静静的从远方的山峦间缓缓升起这一片寂静的城市默默的等待着它的第一缕光芒将之唤醒那飘散在它前方的几层薄云像是新娘的婚纱一般为它的光芒添上了几分淡淡的浮晕在悄无声息间这熙和的阳光默默的照射在大地上像是母亲的手轻轻抚摸熟睡中的孩子般柔情似水五月的盛夏从这一缕柔情中揭开了第一抹的清香清晨本是繁华喧闹的街道此时只有稀薄的人群围着冒着层聋
Fed by curiosity and beauty - Remembering Myrsine Zorba
Speech at the conference in the memory of Myrsine Zorba.
All the images mentioned in 'See What You're Missing'
We've gathered together all of the images mentioned in Will Gompertz's 'See What You're Missing'
一比一原版(QUT毕业证)昆士兰科技大学毕业证成绩单如何办理
QUT毕业证【微信95270640】办理QUT毕业证【Q微信95270640】昆士兰科技大学毕业证书原版↑制作昆士兰科技大学学历认证文凭办理昆士兰科技大学留信网认证,留学回国办理毕业证成绩单文凭学历认证【Q微信95270640】专业为海外学子办理毕业证成绩单、文凭制作，学历仿制，回国人员证明、做文凭，研究生、本科、硕士学历认证、留信认证、结业证、学位证书样本、美国教育部认证百分百真实存档可查】
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国外毕业证学位证成绩单如何办理：
1客户提供办理信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：我们有专业老师帮你查询）；
2开始安排制作昆士兰科技大学毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）。望着父亲山娃反问道父亲听了并不回答只是吃吃地笑山娃很精神越逛越起劲父亲却越逛越疲倦望着父亲呵欠连天的样子山娃也说困了累了回家吧小屋闷罐一般头顶上的三叶扇彻夜呜呜作响搅得满屋热气腾腾也搅得山娃心烦意乱父亲一上床就呼呼大睡山娃却辗转反侧睡不着山娃一次又一次摸索着爬起来一遍又一遍地用暖乎乎的冷水擦身往水泥地板上一勺一勺的洒水也不知过了多久山娃竟迷迷糊糊地睡着了迷迷糊糊地又闻到了闹钟刺耳的铃声和哐咣的关和
My storyboard for a sword fight scene with lightsabers
My storyboard for a sword fight scene with lightsabers
Dino Ranch Storyboard / Kids TV Advertising
Storyboard produced for the TV commercial of a toy from the children's show “Dino Ranch”
Domino Express Storyboard - TV Adv Toys 30"
Storyboard for a tv commercial about a toy "Domino Express"
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This tutorial offers a step-by-step guide on how to effectively use Pinterest. It covers the basics such as account creation and navigation, as well as advanced techniques including creating eye-catching pins and optimizing your profile. The tutorial also explores collaboration and networking on the platform. With visual illustrations and clear instructions, this tutorial will equip you with the skills to navigate Pinterest confidently and achieve your goals.
一比一原版加拿大多伦多大学毕业证（uoft毕业证书）如何办理
一模一样【微信：A575476】【加拿大多伦多大学毕业证（uoft毕业证书）成绩单Offer】【微信：A575476】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：A575476】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：A575476】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
Heart Touching Romantic Love Shayari In English with Images
Explore our beautiful collection of Romantic Love Shayari in English to express your love. These heartfelt shayaris are perfect for sharing with your loved one. Get the best words to show your love and care.
2024 MATFORCE Youth Poster Contest Winners
This document announces the winners of the 2024 Youth Poster Contest organized by MATFORCE. It lists the grand prize and age category winners for grades K-6, 7-12, and individual age groups from 5 years old to 18 years old.
Ealing London Independent Photography meeting - June 2024
Photographs from trip to American Deep South
A Brief Introduction About Hadj Ounis
Hadj Ounis's most notable work is his sculpture titled "Metamorphosis." This piece showcases Ounis's mastery of form and texture, as he seamlessly combines metal and wood to create a dynamic and visually striking composition. The juxtaposition of the two materials creates a sense of tension and harmony, inviting viewers to contemplate the relationship between nature and industry.
Recently uploaded (20)
Fed by curiosity and beauty - Remembering Myrsine Zorba
Fed by curiosity and beauty - Remembering Myrsine Zorba
All the images mentioned in 'See What You're Missing'
All the images mentioned in 'See What You're Missing'
My storyboard for a sword fight scene with lightsabers
My storyboard for a sword fight scene with lightsabers
storyboard: Victor and Verlin discussing about top hat
storyboard: Victor and Verlin discussing about top hat
Heart Touching Romantic Love Shayari In English with Images
Heart Touching Romantic Love Shayari In English with Images
Ealing London Independent Photography meeting - June 2024
Ealing London Independent Photography meeting - June 2024
Knowledge manifold
- 1. Knowledge Manifold Lingfei Wu 2016-06-06
- 2. 1. Two traditions of network modeling: Newton vs. Einstein 2. Hyperbolic networks 3. Geodesics of hidden geometry: image recognition, Internet routing, and disease diffusion 4. The boundary of knowledge
- 3. Trivial geometry + non-trivial dynamics = Nontrivial geometry + trivial dynamics More elegant ! One principle -> one manifold -> a set of dynamics
- 4. Einsteinian Newtonian Densification: the super-linear scaling between edges and nodes (allometric scaling/accelerating growth); Small-world: the coexistence of a short diameter and a high clustering coefficient; Scale-free: the power-law distribution of degree. W ⇠ N1. Densification 3. Scale-free P(k) ⇠ k N ⇠ el 2. Small-world & High CC
- 5. Geometry Dynamics Erdős–Rényi graph, 1959 Barabási–Albert graph, 1999 Random geometric graph Gilbert,1961 Watts and Strogatz model, 1998 Random geometric growth graph Zhang et al.,2015 Small-world High CC N ⇠ el W ⇠ NDensification Scale-free P(k) ⇠ k Hyperbolic graph Papadopoulos et al.,2012
- 6. Geometry Trivial geometry + Trivial dynamics (local links) High CC Densification Scale-free high popularity = short distance Why hyperbolic ? short diameter We need a non-trivial space that satisfy very compact such that for uniformly distributed nodes N ⇠ el
- 7. Angel-Devil (No. 45) M.C. Escher,1945 Why hyperbolic ? very compact such that for uniformly distributed nodes N ⇠ el high popularity = short distance TED 2009: Margaret Wertheim: The beautiful math of coral
- 8. We do not want phenomenal explanations, Why hyperbolic ? Hyperbolic Geometry of Complex Networks Dmitri Krioukov et al.,2010 Exponential tree = Hyperbolic space Dendrogram: node similarity clustering Similarity space
- 9. A Global Geometric Framework for Nonlinear Dimensionality Reduction, Joshua B. Tenenbaum et al., 2000 ISOMAP 1. Calculate distance between all pairs of nodes 2. Construct network and “trust” only local (short) links 3. Reconstruct (the shortest) paths using the cumulative local links Only geodesics matters !
- 10. Effective distance in disease diffusion The Hidden Geometry of Complex, Network-Driven Contagion Phenomena, Dirk Brockmann & Dirk Helbing, 2013 2. Construct airport networks and “trust” only local (large traffic) links Dmn = X dmnEffective distance 3. Reconstruct (the shortest) paths using the cumulative local links Only geodesics matters !
- 11. Marián Boguñá et al., 2010 1. Embed Internet (at the AS level) into a Hyperbolic space; 2. Routing along the geodesics; Only geodesics matters !
- 12. Questions: 1. Hyperbolic embedding of citation networks ? link prediction field identification 2. Lorentz transformation and invariance of light speed in citation networks ?