KDD Cup 2021で開催された時系列異常検知コンペ
Multi-dataset Time Series Anomaly Detection (https://compete.hexagon-ml.com/practice/competition/39/) に参加して
5位入賞した解法の紹介と上位解法の整理のための資料です.
9/24のKDD2021参加報告&論文読み会 (https://connpass.com/event/223966/) の発表資料です.
KDD Cup 2021で開催された時系列異常検知コンペ
Multi-dataset Time Series Anomaly Detection (https://compete.hexagon-ml.com/practice/competition/39/) に参加して
5位入賞した解法の紹介と上位解法の整理のための資料です.
9/24のKDD2021参加報告&論文読み会 (https://connpass.com/event/223966/) の発表資料です.
발표자: 이활석(NAVER)
발표일: 2017.11.
최근 딥러닝 연구는 지도학습에서 비지도학습으로 급격히 무게 중심이 옮겨 지고 있습니다. 본 과정에서는 비지도학습의 가장 대표적인 방법인 오토인코더의 모든 것에 대해서 살펴보고자 합니다. 차원 축소관점에서 가장 많이 사용되는Autoencoder와 (AE) 그 변형 들인 Denoising AE, Contractive AE에 대해서 공부할 것이며, 데이터 생성 관점에서 최근 각광 받는 Variational AE와 (VAE) 그 변형 들인 Conditional VAE, Adversarial AE에 대해서 공부할 것입니다. 또한, 오토인코더의 다양한 활용 예시를 살펴봄으로써 현업과의 접점을 찾아보도록 노력할 것입니다.
1. Revisit Deep Neural Networks
2. Manifold Learning
3. Autoencoders
4. Variational Autoencoders
5. Applications
Error Detection and Correction in SRAM Cell Using Decimal Matrix Codeiosrjce
Error Correction Codes (ECCs) are commonly used to protect memories from soft errors. As
technology scales, Multiple Cell Upsets (MCUs) become more common and affect a larger number of cells. To
prevent the occurrence of MCUs several error correction codes (ECCs) are used, but the main problem is that
they require complex encoder and decoder architecture and higher delay overheads. The decimal matrix code
(DMC) minimizes the area and delay overheads compared to the existing codes such as hamming, RS codes and
also improves the memory reliability by enhancing the error correction capability. In this paper, novel
decimal matrix code (DMC) based on divide-symbol is proposed to enhance memory reliability with
lower delay overhead. The proposed DMC utilizes decimal algorithm to obtain the maximum error
detection capability. Moreover, the encoder-reuse technique (ERT) is proposed to minimize the area
overhead of extra circuits without disturbing the whole encoding and decoding processes. ERT uses DMC encoder itself to be part of the decoder.
DIGITAL ELECTRONICS
Digital Electronics,
Bits,
Analog, Digital,
Binary,
Logic
Analog Waveform
Digital Waveforms
Example of Analog System
Example of Digital System
Analog Vs. Digital
Presentation Slides - Genetic algorithm based key generation for fully homomo...MajedahAlkharji
Slides describe a method to use Genetic Algorithm to generate keys for the fully homomorphic encryption scheme. Then perform some simple computations on the encrypted data.
Results show that a GA generated key provides more randomness than other conventional methods used to generate public and private keys.
Leveraging Grad-CAM to Improve the Accuracy of Network Intrusion Detection Sy...Francesco Paolo Caforio
In this paper, we focus on dealing with the transparency issue when training CNNs for network intrusion detection. In particular, we illustrate a CNN-based intrusion detection methodology, called GRACE, which injects transparency into the CNN-based classification pipeline.
First, we consider a CNN trained on a 2D representation of historical network traffic data to distinguish between attack and normal flows.
Then, we use the Gradient-weighted Class Activation Mapping method to produce coarse localization maps that highlight most important regions of the traffic data representation to predict the cyber attack.
The main innovation of this study is the combination of CNN, Grad-CAM, k-means and nearest-neighbour search, in order to improve the accuracy of the CNN decisions in a post-hoc way.
Application of Fuzzy Algebra in Coding TheoryIJERA Editor
Fuzziness means different things depending upon the domain of application and the way it is measured. By
means of fuzzy sets, vague notions can be described mathematically now a vigorous area of research with
manifold applications. It should be mentioned that there are natural ways (not necessarily trivial) to fuzzily
various mathematical structures such as topological spaces, algebraic structure etc. The notion of L-fuzzy sets
later more generalizations were also made using various membership sets and operations. In this section we let F
denote the field of integers module 2, we define a fuzzy code as a fuzzy subset of Fn where Fn = {(a1, ....an | a i
F, i = 1, ...n} and n is a fixed arbitrary positive integers we recall that Fn is a vector space over F. We give an
analysis of the Hamming distance between two fuzzy code words and the error – correcting capability of a code
in terms of its corresponding fuzzy codes. The results appearing in the first part of this section are from [17].
발표자: 이활석(NAVER)
발표일: 2017.11.
최근 딥러닝 연구는 지도학습에서 비지도학습으로 급격히 무게 중심이 옮겨 지고 있습니다. 본 과정에서는 비지도학습의 가장 대표적인 방법인 오토인코더의 모든 것에 대해서 살펴보고자 합니다. 차원 축소관점에서 가장 많이 사용되는Autoencoder와 (AE) 그 변형 들인 Denoising AE, Contractive AE에 대해서 공부할 것이며, 데이터 생성 관점에서 최근 각광 받는 Variational AE와 (VAE) 그 변형 들인 Conditional VAE, Adversarial AE에 대해서 공부할 것입니다. 또한, 오토인코더의 다양한 활용 예시를 살펴봄으로써 현업과의 접점을 찾아보도록 노력할 것입니다.
1. Revisit Deep Neural Networks
2. Manifold Learning
3. Autoencoders
4. Variational Autoencoders
5. Applications
Error Detection and Correction in SRAM Cell Using Decimal Matrix Codeiosrjce
Error Correction Codes (ECCs) are commonly used to protect memories from soft errors. As
technology scales, Multiple Cell Upsets (MCUs) become more common and affect a larger number of cells. To
prevent the occurrence of MCUs several error correction codes (ECCs) are used, but the main problem is that
they require complex encoder and decoder architecture and higher delay overheads. The decimal matrix code
(DMC) minimizes the area and delay overheads compared to the existing codes such as hamming, RS codes and
also improves the memory reliability by enhancing the error correction capability. In this paper, novel
decimal matrix code (DMC) based on divide-symbol is proposed to enhance memory reliability with
lower delay overhead. The proposed DMC utilizes decimal algorithm to obtain the maximum error
detection capability. Moreover, the encoder-reuse technique (ERT) is proposed to minimize the area
overhead of extra circuits without disturbing the whole encoding and decoding processes. ERT uses DMC encoder itself to be part of the decoder.
DIGITAL ELECTRONICS
Digital Electronics,
Bits,
Analog, Digital,
Binary,
Logic
Analog Waveform
Digital Waveforms
Example of Analog System
Example of Digital System
Analog Vs. Digital
Presentation Slides - Genetic algorithm based key generation for fully homomo...MajedahAlkharji
Slides describe a method to use Genetic Algorithm to generate keys for the fully homomorphic encryption scheme. Then perform some simple computations on the encrypted data.
Results show that a GA generated key provides more randomness than other conventional methods used to generate public and private keys.
Leveraging Grad-CAM to Improve the Accuracy of Network Intrusion Detection Sy...Francesco Paolo Caforio
In this paper, we focus on dealing with the transparency issue when training CNNs for network intrusion detection. In particular, we illustrate a CNN-based intrusion detection methodology, called GRACE, which injects transparency into the CNN-based classification pipeline.
First, we consider a CNN trained on a 2D representation of historical network traffic data to distinguish between attack and normal flows.
Then, we use the Gradient-weighted Class Activation Mapping method to produce coarse localization maps that highlight most important regions of the traffic data representation to predict the cyber attack.
The main innovation of this study is the combination of CNN, Grad-CAM, k-means and nearest-neighbour search, in order to improve the accuracy of the CNN decisions in a post-hoc way.
Application of Fuzzy Algebra in Coding TheoryIJERA Editor
Fuzziness means different things depending upon the domain of application and the way it is measured. By
means of fuzzy sets, vague notions can be described mathematically now a vigorous area of research with
manifold applications. It should be mentioned that there are natural ways (not necessarily trivial) to fuzzily
various mathematical structures such as topological spaces, algebraic structure etc. The notion of L-fuzzy sets
later more generalizations were also made using various membership sets and operations. In this section we let F
denote the field of integers module 2, we define a fuzzy code as a fuzzy subset of Fn where Fn = {(a1, ....an | a i
F, i = 1, ...n} and n is a fixed arbitrary positive integers we recall that Fn is a vector space over F. We give an
analysis of the Hamming distance between two fuzzy code words and the error – correcting capability of a code
in terms of its corresponding fuzzy codes. The results appearing in the first part of this section are from [17].
Digital Signals and System (April – 2017) [75:25 Pattern | Question Paper]Mumbai B.Sc.IT Study
mumbai bscit study, kamal t, mumbai university, old question paper, previous year question paper, bscit question paper, bscit semester vi, internet technology, april - 2015, 75:25 Pattern, 60:40 Pattern, revised syllabus, old syllabus, cbsgc, question paper, may - 2016, april - 2017, april - 2014, april - 2013, may – 2016, october – 2016, digital signals and system
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.