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The document summarizes research on characterizing crowds in Piazza Duca d’Aosta in Milan, Italy using computer vision. A YOLO v3 model was used to detect and track pedestrians from camera footage. Trajectories were estimated and filtered to remove errors. Speed, direction, and density heatmaps were generated from the data at 15-minute intervals. Three main clusters of pedestrians were observed near subway entrances and in the center of the square. Speed heatmaps showed higher speeds in the center and uniform speeds near entrances, while density heatmaps illustrated pedestrian concentration patterns over time.
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International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Udacity-Didi Challenge Finalists
The document describes the team ICTANS' pipeline for position and orientation estimation of cars and pedestrians using sensors such as lidar, radar, and cameras. It discusses their framework which uses R-FCN detectors on front and bird's eye views of lidar data along with sensor fusion to estimate obstacle positions, as well as improvements made in the second round such as using only velodyne data and Kalman filtering for detection in various ranges while satisfying real-time constraints. The team achieved a score of 0.332 and rank of 5 using this approach.
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Investigation of repeated blasts at Aitik mine using waveform cross correlation
Investigation of repeated blasts at Aitik mine using waveform cross correlation
Random Chaotic Number Generation based Clustered Image Encryption
Random Chaotic Number Generation based Clustered Image Encryption
"What is Neuromorphic Event-based Computer Vision? Sensors, Theory and Applic...
"What is Neuromorphic Event-based Computer Vision? Sensors, Theory and Applic...
Model-counting Approaches For Nonlinear Numerical Constraints
Model-counting Approaches For Nonlinear Numerical Constraints
IJCER (www.ijceronline.com) International Journal of computational Engineeri...
IJCER (www.ijceronline.com) International Journal of computational Engineeri...
A New Key Stream Generator Based on 3D Henon map and 3D Cat map
A New Key Stream Generator Based on 3D Henon map and 3D Cat map
IMAGE ENCRYPTION BASED ON DIFFUSION AND MULTIPLE CHAOTIC MAPS
IMAGE ENCRYPTION BASED ON DIFFUSION AND MULTIPLE CHAOTIC MAPS
More from Federico Karagulian
HEV-TCP ExCo57
The document provides an overview of Italy's HEV and EV activities and statistics in 2022. Some key points include:
- BEVs accounted for 0.43% of vehicles in Italy while HEVs/PHEVs were 4.2% in 2022.
- Several demonstration projects for hydrogen and electric vehicles were underway, such as a hydrogen bus and electric air taxi.
- A survey found that most electric vehicle owners charge at home and range anxiety is a top concern for potential buyers.
- Incentives are available until 2024 for purchasing electric vehicles and installing charging points.
- EV adoption scenarios estimate between 3.9-8.2 million EVs in Italy by 2030 depending
SENTINEL- Sistema di Pesatura Dinamico per la gestione del traffico pesante
SENTINEL- Sistema di Pesatura Dinamico per la gestione del traffico pesante
RAFAEL project
System for Risk Analysis and Forecasting for Critical Infrastructures in the AppenninEs dorsaL Regions
MOSORE_BRESCIA
The document summarizes traffic data from March and November 2019 related to trips to the University of Brescia's Faculty of Engineering. It includes counts of cars that stopped at or traveled directly to the university's parking lot, as well as anonymized data on vehicle IDs, arrival times, stop durations, trip distances, and estimated speeds. The data comes from the university's parking lot on Via Branze 38 in Brescia, Italy.
Review on Low Cost Air Quality Sensors
This document summarizes a review of low-cost air quality sensors. It analyzed sensors for PM, O3, NO2, NO and CO based on their agreement with reference measurements, ability to measure multiple pollutants, data availability, and value. Sensors were shortlisted that showed good agreement (R2 > 0.85, 0.8 < slope < 1.2) including models from AirNut, PA-I, PA-II, Egg and others ranging from $132-880. While few sensors were open source, most were "black boxes" only measuring one pollutant. The review concluded there is a need to target the best sensor based on openness, agreement, number of pollutants and
Dust Detection in the UAE
This document summarizes a study analyzing a severe dust storm in the Arabian Peninsula using an air quality model (WRF-Chem), satellite imagery, and ground observations. The study area experiences strong seasonal winds that carry dust from sources in Iraq and Saudi Arabia. The WRF-Chem model was used to simulate meteorology and dust transport during a 2015 dust event, and validated using satellite data, ground measurements, and AERONET data. Model results matched observations and showed dust concentrations and air quality indexes reaching hazardous levels during the event, with PM10 being the main pollutant degrading air quality.
Task Data Scientist
This document analyzes data from a survey of 3041 respondents about their media consumption habits and key performance indicators (KPIs). The key findings are:
1. Respondent sources 1 and 4 accounted for 66% of respondents, and were dominant across all media channels.
2. Television, online media, and social media were the top 3 media channels that respondents used. Intention to recommend, intention to purchase, and perception of humor were the top 3 KPIs.
3. Television had the highest impact on driving most KPIs, particularly spontaneous brand awareness at 70%. Surprisingly, social media had the strongest impact (28%) on actual product purchases during the campaign.
Patent_(FK)_EP 2 857 627 A1
This document is a patent application for a roller shutter slat and method of producing the slat. It describes a roller shutter slat formed from a coated aluminum strip into a hollow body profile. The male upper end of the slat is provided with at least two spacing elements projecting from the outline of the male upper end. This reduces the contact area between adjacent slats and prevents them from sticking together at high temperatures. The spacing elements are preferably formed by punching and bending the coated aluminum strip. The application also describes a method for producing such a roller shutter slat.
Patent_(FK)_EP 2 843 177 B1
Within nine months of the publication of a European patent grant, any person may file an opposition to the patent with the European Patent Office. The opposition notice is not effective until the opposition fee has been paid. The document also discusses a roller shutter slat made of aluminum with a polytetrafluoroethylene coating on at least one end to prevent sticking together at high temperatures.
Satellite Remote Sensing (Kasatochi eruption)
1) The document summarizes research from January to June 2009 analyzing satellite data from the IASI instrument to track volcanic eruptions and atmospheric gases.
2) Analysis of the 2008 Kasatochi volcano eruption in Alaska tracked the SO2 plume and detected signatures of ash and H2SO4-H2O aerosols in IASI spectra.
3) A year of IASI observations were used to map formic acid (HCOOH) globally and correlate detections with fire events, showing both pyrogenic and biogenic sources of HCOOH.
Satellite Remote Sensing (Formic Acid)
The document summarizes the first global observations of organic compounds formic acid (HCOOH) and methanol (CH3OH) using measurements from the IASI infrared sounder. Preliminary comparisons with the IMAGESv2 global chemistry transport model show some correlations between the observations and modeled emissions from biomass burning, biogenic, and anthropogenic sources. Additional IASI observations suggest biogenic emissions above shrublands and vegetation areas, but not above tropical forests as expected. Further work is needed to optimize the background filtering of the observations and better assign the sources of HCOOH and CH3OH emissions in models.
Aerosols and Nephelometers
This document compares measurements of particulate matter PM2.5 mass from a SidePak AM510 nephelometer to measurements from a TEOM-FDMS 8500 at multiple sites in Italy. It finds that calibrating the SidePak using a radiative transfer model that accounts for factors like particle composition and humidity provides better agreement with the TEOM-FDMS than using the factory calibration. The calibration is most improved when done using co-located measurements of the two instruments. A sensitivity analysis shows particle density and the nephelometer calibration factor α contribute most to measurement uncertainty.
Particle Matter in Po Valley (Source Apportionment)
This document summarizes a study of PM2.5 formation during a photochemical episode in the Po Valley in Italy. Measurements were taken in Limito di Pioltello near Milan from June 17-20 and July 8-17, 2009. The study found that (1) secondary inorganic aerosols like nitrates, sulfates and ammonium dominated PM2.5 mass during the episode, forming through aqueous phase photochemistry, (2) fine particles peaked at night while coarse particles peaked during the afternoon due to different sources, and (3) source apportionment models like the Multilinear Engine ME-2 helped identify local traffic, nitrates from the Po Valley, and sulfates from Milan as major sources
Pharmaceuticals: Bioequivalence & Clinical trials
This document describes a methodology for comparing bioavailability and bioequivalence data from pharmaceutical clinical trials. The methodology involves gathering generic and innovator drug data, classifying the data, comparing the data using statistical methods, and establishing equivalence criteria. The comparison methods calculate correlation coefficients and weighted differences between tests, and use z-scores to evaluate test performance in a proficiency test. The goal is to assure therapeutic equivalence between generic and innovator drugs.
Mineral Dust and Soot: Atmospheric Chemistry
This document summarizes Federico Karagulian's thesis on the heterogeneous interaction of atmospheric trace gases on mineral aerosols and soot. It discusses how mineral dust and soot can react with gases like NO3, N2O5, O3, and NO2 through heterogeneous chemistry. This can impact the atmospheric concentrations of these gases and influence ozone chemistry. Experiments using proxies like CaCO3, kaolinite and Arizona Test Dust showed uptake of NO3 and N2O5 onto particle surfaces. The reactivity decreased lifetimes of gases and produced HNO3. Soot was also found to react with N2O5 and facilitate renoxification. These interactions have implications for the global ozone budget and
Organics and Sea Salts (Human Health)
This study found an unusual oxidation mechanism for unsaturated organics on sea salt aerosols. Specifically, it was found that primary ozonides (POZ) formed from the reaction of ozone with organic coatings on sea salt particles have sufficiently long lifetimes of around 100 ms to undergo further reactions with ozone and water vapor. This contrasts with the typical 1 ms lifetime of POZ decomposition in solution. Secondary ozonides (SOZ) were found to increase with higher ozone concentrations, suggesting POZ can react to form more SOZ. The findings demonstrate sea salt particles can act as an interface for pollutant reactions in the atmosphere under some conditions.
Equivalence Cigarette
1) The document proposes using an inter-comparison equivalence method to demonstrate substantial equivalence of new cigarettes to existing products by comparing variables and components through statistical analyses.
2) It describes using positive matrix factorization to target efficiency factors for ingredients and emissions in new cigarette design in order to reduce toxicity based on toxicological information.
3) The goal is to discover the most efficient ingredient and emission profiles through an iterative process of validation and feedback to design cigarettes with the same smoking pleasure but reduced health risks.
More from Federico Karagulian (20)
SENTINEL- Sistema di Pesatura Dinamico per la gestione del traffico pesante
SENTINEL- Sistema di Pesatura Dinamico per la gestione del traffico pesante
Particle Matter in Po Valley (Source Apportionment)
Particle Matter in Po Valley (Source Apportionment)
Recently uploaded
一比一原版(BCU毕业证书)伯明翰城市大学毕业证如何办理
原版定制【微信:41543339】【(BCU毕业证书)伯明翰城市大学毕业证】【微信:41543339】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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41543339】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41543339】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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(UCSB文凭证书)圣芭芭拉分校毕业证如何办理
毕业原版【微信:176555708】【(UCSB毕业证书)圣芭芭拉分校毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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176555708】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176555708】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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(UCSF文凭证书)旧金山分校毕业证如何办理
毕业原版【微信:176555708】【(UCSF毕业证书)旧金山分校毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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176555708】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176555708】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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！
Global Situational Awareness of A.I. and where its headed
You can see the future first in San Francisco.
Over the past year, the talk of the town has shifted from $10 billion compute clusters to $100 billion clusters to trillion-dollar clusters. Every six months another zero is added to the boardroom plans. Behind the scenes, there’s a fierce scramble to secure every power contract still available for the rest of the decade, every voltage transformer that can possibly be procured. American big business is gearing up to pour trillions of dollars into a long-unseen mobilization of American industrial might. By the end of the decade, American electricity production will have grown tens of percent; from the shale fields of Pennsylvania to the solar farms of Nevada, hundreds of millions of GPUs will hum.
The AGI race has begun. We are building machines that can think and reason. By 2025/26, these machines will outpace college graduates. By the end of the decade, they will be smarter than you or I; we will have superintelligence, in the true sense of the word. Along the way, national security forces not seen in half a century will be un-leashed, and before long, The Project will be on. If we’re lucky, we’ll be in an all-out race with the CCP; if we’re unlucky, an all-out war.
Everyone is now talking about AI, but few have the faintest glimmer of what is about to hit them. Nvidia analysts still think 2024 might be close to the peak. Mainstream pundits are stuck on the wilful blindness of “it’s just predicting the next word”. They see only hype and business-as-usual; at most they entertain another internet-scale technological change.
Before long, the world will wake up. But right now, there are perhaps a few hundred people, most of them in San Francisco and the AI labs, that have situational awareness. Through whatever peculiar forces of fate, I have found myself amongst them. A few years ago, these people were derided as crazy—but they trusted the trendlines, which allowed them to correctly predict the AI advances of the past few years. Whether these people are also right about the next few years remains to be seen. But these are very smart people—the smartest people I have ever met—and they are the ones building this technology. Perhaps they will be an odd footnote in history, or perhaps they will go down in history like Szilard and Oppenheimer and Teller. If they are seeing the future even close to correctly, we are in for a wild ride.
Let me tell you what we see.
STATATHON: Unleashing the Power of Statistics in a 48-Hour Knowledge Extravag...
"Join us for STATATHON, a dynamic 2-day event dedicated to exploring statistical knowledge and its real-world applications. From theory to practice, participants engage in intensive learning sessions, workshops, and challenges, fostering a deeper understanding of statistical methodologies and their significance in various fields."
End-to-end pipeline agility - Berlin Buzzwords 2024
We describe how we achieve high change agility in data engineering by eliminating the fear of breaking downstream data pipelines through end-to-end pipeline testing, and by using schema metaprogramming to safely eliminate boilerplate involved in changes that affect whole pipelines.
A quick poll on agility in changing pipelines from end to end indicated a huge span in capabilities. For the question "How long time does it take for all downstream pipelines to be adapted to an upstream change," the median response was 6 months, but some respondents could do it in less than a day. When quantitative data engineering differences between the best and worst are measured, the span is often 100x-1000x, sometimes even more.
A long time ago, we suffered at Spotify from fear of changing pipelines due to not knowing what the impact might be downstream. We made plans for a technical solution to test pipelines end-to-end to mitigate that fear, but the effort failed for cultural reasons. We eventually solved this challenge, but in a different context. In this presentation we will describe how we test full pipelines effectively by manipulating workflow orchestration, which enables us to make changes in pipelines without fear of breaking downstream.
Making schema changes that affect many jobs also involves a lot of toil and boilerplate. Using schema-on-read mitigates some of it, but has drawbacks since it makes it more difficult to detect errors early. We will describe how we have rejected this tradeoff by applying schema metaprogramming, eliminating boilerplate but keeping the protection of static typing, thereby further improving agility to quickly modify data pipelines without fear.
办(uts毕业证书)悉尼科技大学毕业证学历证书原版一模一样
原版一模一样【微信：741003700 】【(uts毕业证书)悉尼科技大学毕业证学历证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。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，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：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、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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
Enhanced Enterprise Intelligence with your personal AI Data Copilot.pdf
Recently we have observed the rise of open-source Large Language Models (LLMs) that are community-driven or developed by the AI market leaders, such as Meta (Llama3), Databricks (DBRX) and Snowflake (Arctic). On the other hand, there is a growth in interest in specialized, carefully fine-tuned yet relatively small models that can efficiently assist programmers in day-to-day tasks. Finally, Retrieval-Augmented Generation (RAG) architectures have gained a lot of traction as the preferred approach for LLMs context and prompt augmentation for building conversational SQL data copilots, code copilots and chatbots.
In this presentation, we will show how we built upon these three concepts a robust Data Copilot that can help to democratize access to company data assets and boost performance of everyone working with data platforms.
Why do we need yet another (open-source ) Copilot?
How can we build one?
Architecture and evaluation
The Ipsos - AI - Monitor 2024 Report.pdf
According to Ipsos AI Monitor's 2024 report, 65% Indians said that products and services using AI have profoundly changed their daily life in the past 3-5 years.
一比一原版(Dalhousie毕业证书)达尔豪斯大学毕业证如何办理
原版定制【微信:41543339】【(Dalhousie毕业证书)达尔豪斯大学毕业证】【微信:41543339】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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41543339】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41543339】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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！
06-04-2024 - NYC Tech Week - Discussion on Vector Databases, Unstructured Dat...
06-04-2024 - NYC Tech Week - Discussion on Vector Databases, Unstructured Data and AI
Round table discussion of vector databases, unstructured data, ai, big data, real-time, robots and Milvus.
A lively discussion with NJ Gen AI Meetup Lead, Prasad and Procure.FYI's Co-Found
一比一原版(UofS毕业证书)萨省大学毕业证如何办理
原版定制【微信:41543339】【(UofS毕业证书)萨省大学毕业证】【微信:41543339】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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41543339】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41543339】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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！
Population Growth in Bataan: The effects of population growth around rural pl...
A population analysis specific to Bataan.
一比一原版(Glasgow毕业证书)格拉斯哥大学毕业证如何办理
毕业原版【微信:41543339】【(Glasgow毕业证书)格拉斯哥大学毕业证】【微信:41543339】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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41543339】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41543339】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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(UMN文凭证书)明尼苏达大学毕业证如何办理
毕业原版【微信:176555708】【(UMN毕业证书)明尼苏达大学毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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176555708】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176555708】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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！
My burning issue is homelessness K.C.M.O.
My burning issue is homelessness in Kansas City, MO
To: Tom Tresser
From: Roger Warren
一比一原版(GWU,GW文凭证书)乔治·华盛顿大学毕业证如何办理
毕业原版【微信:176555708】【(GWU,GW毕业证书)乔治·华盛顿大学毕业证】【微信:176555708】成绩单、外壳、offer、留信学历认证（永久存档真实可查）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。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路），我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【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176555708】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176555708】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
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
→ 【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：客户在留信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！
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Computer Vision
- 1. Crowd characterization from computer vision by Federico KARAGULIAN GENERAL NOTES (Oct. 2023) Referred to published paper https://www.mdpi.com/2413- 8851/7/2/65 Target Square: Piazza Duca d’Aosta (Milano, Italy) subway subway railway Central Station subway camera (a) (b) (c)
- 2. The YOLO v3 Model (pre-processing)
- 3. 64 by (3x3) Conv + ReLU Input image: 256x256x3 pixel 32 by (1x1) Conv + ReLU 64 by (3x3) Conv + ReLU Output: 128x128x3 px Residual block 128 by (3x3) Conv + ReLU 64 by (1x1) Conv + ReLU 128 by (3x3) Conv + ReLU Output: 64x64x3 px 256 by (3x3) Conv + ReLU 32 by (3x3) Conv + ReLU Down sampling Down sampling 128 by (1x1) Conv + ReLU 256 by (3x3) Conv + ReLU Output: 32x32x3 px 512 by (3x3) Conv + ReLU 256 by (1x1) Conv + ReLU 512 by (3x3) Conv + ReLU Output: 16x16x3 px 1024 by (3x3) Conv + ReLU 512 by (1x1) Conv + ReLU 1024 by (3x3) Conv + ReLU Output: 8x8x3 px Pre-trained weigths (COCO dataset) NN Darknet-53 Residual block Down sampling Residual block Residual block Residual block Down sampling Down sampling Figure 2 Up-sampling Up-sampling 1x 2x 8x 8x 4x Output: 16x16x3 px Output: 32x32x3 px small medium large anchor box & class assignation
- 4. 64 by (3x3) Conv + ReLU Input image: 256x256x3 pixel 32 by (1x1) Conv + identity 64 by (3x3) Conv + identity Output: 128x128x3 px Residual block 128 by (3x3) Conv + ReLU 64 by (1x1) Conv + identity 128 by (3x3) Conv + identity Output: 64x64x3 px 256 by (3x3) Conv + ReLU 32 by (3x3) Conv + ReLU Down sampling Down sampling 128 by (1x1) Conv + identity 256 by (3x3) Conv + identity Output: 32x32x3 px 512 by (3x3) Conv + ReLU 256 by (1x1) Conv + identity 512 by (3x3) Conv + identity Output: 16x16x3 px 1024 by (3x3) Conv + ReLU 512 by (1x1) Conv + identity 1024 by (3x3) Conv + identity Output: 8x8x3 px Pre-trained weigths (COCO dataset) YOLOv3 - NN Darknet-53 Residual block Down sampling Residual block Residual block Residual block Down sampling Down sampling 1x 2x 8x 8x 4x small medium large class assignation
- 5. Postprocessing from YOLOv3 model results ➢ From pixels to meters (from 3D to 2D view using conversion factors that considered the view angle of the camera, the viewpoint depth of the image and top view dimensions of the Piazza. ➢ trajectories estimation by tracking each unique identifier and by construction of time series of locations each minute ➢ Calculation of mean speed along each trajectory (= distance/trajectory duration) ➢ Calculation of “instantaneous” speed ➢ Filtering speed (> 0.3 & < 2.5 m/s) ➢ Calculation of the direction of the trajectory (in degrees) from ORIGIN --> DESTINATION for each ID To build heatmaps: ➢ Convert position of each trajectory point into a projected coordinate system in meters (projection epsg:32632, WGS 84/UTM zone 32N) ➢ Definition of a regular grid of 2x2m square cells ➢ Intersection of trajectory data with the grid ➢ Average of speed and direction data within each grid cell at time intervals of 15 minutes and during morning/evening hours ➢ Calculation of Voronoi areas for each point (not per trajectory) (for density calculation) ➢ Intersection of density data with the grid ➢ Average of voronoi density within each grid cell at time intervals of 15 minutes and during morning/evening hours
- 7. Identification of single ID (ID == pedestrian)
- 8. Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 Person - 1771 subway subway
- 10. General considerations about trajectories and speed: Data cleaning 1) if distance between two consecutive traces >=1m, 2) if the distance with the previous point <=1m, 3) if distance with the two next points <=1m 4) if the timestamp difference (in seconds) between two consecutive traces is < 1 second Filtering angles with criteria to avoid erroneous directions 5) If absolute angle between two consecutive directions is >= 90°, the trace is ignored Targeting constant directions 6) Filtering data withing 10-30 seconds time accroding to defined directions 7) group_by directions with the highest number of recurrencies Considerations Most of trajectories are from the north to south Most of pedestrians come from the subway located on the top-right side of the Piazza Duca d’Aosta
- 11. METRICS Accuracy: ratio between the number of the DETECTED pedestrians and the effectively TRACKED persons in each frame Confidence: how much we are confident the DETECTED object is a person (pedestrian) from Computer Vision IoU: Intersection over Union, allows evaluating how similar a predicted bounding box is to the ground truth box. (IoU) is known to be a good metric for measuring overlap between two bounding boxes or masks. MOTA: Multiple Object Tracking Accuracy MOTP: Multiple Object Tracking Precision (must be close to zero as much as possible)
- 12. Clustering directions and Speed (morning and evening)
- 13. Speed Heat-maps Spatial representation of identified pedestrians from CV a) Three main clusters of pedestrian were found b) Centroid of the clusters were localized in the proximity of the subway access points (A) and in the middle of the square (B) Piazza Duca d’Aosta in front of the central station. Mean SPEED heatmaps of pedestrians. Speeds have been computed for every trajectory of each pedestrian ID by considering spatial increment within 1 sec. Speed values were averaged every 15 minutes. ➢ Speed were filtered for considering a minimum forward speed of 0.3 [m/s] and a maximum speed of 2.5 [m/s]. ➢ High speed values were observed at the centre of the square while subway access points showed homogeneous speeds
- 14. Density Heat-maps (with Voronoi Assumption) Mean DENSITY heatmaps of pedestrians. Density was computed as the ratio between the number of pedestrian within 2x2m2 cell and the area of the cell weighted by the number of timestamps.
- 16. for technical details contact: federico.karagulian@enea.it or karafede@hotmail.com