The document discusses binary heaps and algorithms for building, inserting, and deleting elements from heaps. It begins by defining min-heaps and max-heaps, and the heap property that parent nodes are smaller than child nodes in min-heaps and larger in max-heaps. It then covers algorithms for inserting new elements by placing them at the bottom and bubbling up, deleting the minimum/maximum element by replacing it with the last element and bubbling down. The document concludes by explaining that building a heap from a list of elements can be done in linear time by placing elements in an array and percolating them down level-by-level.
This presentation explains the steps to build the Heap data structure.
You can get complete explanation video of this presentation on Udemy.
Link: https://www.udemy.com/logn-data-structure-part2/
YouTube Channel Name: Logn Research Group
This presentation explains the steps to build the Heap data structure.
You can get complete explanation video of this presentation on Udemy.
Link: https://www.udemy.com/logn-data-structure-part2/
YouTube Channel Name: Logn Research Group
Mimblewimble on Ethereum talk @ Devcon5. A user can enter into the magical world by depositing ERC20 tokens to Ethereum 9¾ and then sending ERC20s privately using Mimblewimble spells. Also, the user can withdraw ERC20 tokens to the muggle world by submitting proof.
Presenting "Making Use of Reliability Statistics" 6:30pm May 7th at the local IEEE Reliability Society meeting - join us if you can.
In general we need to master the use of statistics to make better decisions. Let the data talk, explore it to learn it's secrets, and conduct experiments with a purpose.
Abstract
キーの値による範囲検索が可能なキー順序保存型構造化オーバレイネットワークは多くの応用があり,重要性が高い.本研究では,新しいキー順序保存型構造化オーバレイネットワークSuzakuを提案する.Suzakuは,(1)Churn時でも最大検索ホップ数がlog_2 n程度に収まる(nはノード数),(2)キーが大小どちらの方向でも近傍ノードの検索は高速に行える,(3)構造は単純で実装が容易,といった特徴を備える.本稿ではSuzakuの詳細について述べ,シミュレーションによって既存のChord#およびSkip Graphと比較する.
A ``key-order preserving structured overlay network,'' which enables
range queries, has various applications and thus be important. In
this study, we propose a novel key-order preserving structured
overlay network ``Suzaku,'' which has the following properties: (1)
maximum lookup hops is almost log_2 n even in churn situations,
where $n$ is the number of nodes, (2) neighbor search is fast
regardless of the direction of their keys, (3) the structure is
simple and easy to implement. In this paper, we describe the
principles and detailed algorithm of Suzaku. We also show
simulation results comparing Suzaku with existing Chord# and Skip
Graph.
A successful maximum likelihood parameter estimation in skewed distributions ...Hideo Hirose
A successful maximum likelihood parameter estimation scheme using
the continuation method (homotopy method) is introduced. This
algorithm is particularly useful for the three-parameter skewed
distributions including thresholds. Such three-parameter
distributions are, for example, Weibull, log-normal, gamma and
inverse Gaussian distributions. As the proposed algorithm can almost
always obtain the local maximum likelihood estimates automatically,
it is of considerable practical value. The Monte Carlo simulation
study shows the effectiveness of the proposed method.
Identification of unknown parameters and prediction with hierarchical matrice...Alexander Litvinenko
We compare four numerical methods for the prediction of missing values in four different datasets.
These methods are 1) the hierarchical maximum likelihood estimation (H-MLE), and three machine learning (ML) methods, which include 2) k-nearest neighbors (kNN), 3) random forest, and 4) Deep Neural Network (DNN).
From the ML methods, the best results (for considered datasets) were obtained by the kNN method with three (or seven) neighbors.
On one dataset, the MLE method showed a smaller error than the kNN method, whereas, on another, the kNN method was better.
The MLE method requires a lot of linear algebra computations and works fine on almost all datasets. Its result can be improved by taking a smaller threshold and more accurate hierarchical matrix arithmetics. To our surprise, the well-known kNN method produces similar results as H-MLE and worked much faster.
Identification of unknown parameters and prediction of missing values. Compar...Alexander Litvinenko
H-matrix approximation of large Mat\'{e}rn covariance matrices, Gaussian log-likelihoods.
Identifying unknown parameters and making predictions
Comparison with machine learning methods.
kNN is easy to implement and shows promising results.
Fast and accurate metrics. Is it actually possible?Bogdan Storozhuk
This talk is a story about complete redesign of one data structure from Dropwizard Metrics library to achieve some way of measuring histogram without outliers, approximations and with acceptable performance. We will talk about hard and controversial decisions programmer should make to design fast, concise but in the same time very simple data structures. You will learn about: memory consumption optimizations, minimizing allocations, decreasing GC pressure, achieving thread safety.
Mimblewimble on Ethereum talk @ Devcon5. A user can enter into the magical world by depositing ERC20 tokens to Ethereum 9¾ and then sending ERC20s privately using Mimblewimble spells. Also, the user can withdraw ERC20 tokens to the muggle world by submitting proof.
Presenting "Making Use of Reliability Statistics" 6:30pm May 7th at the local IEEE Reliability Society meeting - join us if you can.
In general we need to master the use of statistics to make better decisions. Let the data talk, explore it to learn it's secrets, and conduct experiments with a purpose.
Abstract
キーの値による範囲検索が可能なキー順序保存型構造化オーバレイネットワークは多くの応用があり,重要性が高い.本研究では,新しいキー順序保存型構造化オーバレイネットワークSuzakuを提案する.Suzakuは,(1)Churn時でも最大検索ホップ数がlog_2 n程度に収まる(nはノード数),(2)キーが大小どちらの方向でも近傍ノードの検索は高速に行える,(3)構造は単純で実装が容易,といった特徴を備える.本稿ではSuzakuの詳細について述べ,シミュレーションによって既存のChord#およびSkip Graphと比較する.
A ``key-order preserving structured overlay network,'' which enables
range queries, has various applications and thus be important. In
this study, we propose a novel key-order preserving structured
overlay network ``Suzaku,'' which has the following properties: (1)
maximum lookup hops is almost log_2 n even in churn situations,
where $n$ is the number of nodes, (2) neighbor search is fast
regardless of the direction of their keys, (3) the structure is
simple and easy to implement. In this paper, we describe the
principles and detailed algorithm of Suzaku. We also show
simulation results comparing Suzaku with existing Chord# and Skip
Graph.
A successful maximum likelihood parameter estimation in skewed distributions ...Hideo Hirose
A successful maximum likelihood parameter estimation scheme using
the continuation method (homotopy method) is introduced. This
algorithm is particularly useful for the three-parameter skewed
distributions including thresholds. Such three-parameter
distributions are, for example, Weibull, log-normal, gamma and
inverse Gaussian distributions. As the proposed algorithm can almost
always obtain the local maximum likelihood estimates automatically,
it is of considerable practical value. The Monte Carlo simulation
study shows the effectiveness of the proposed method.
Identification of unknown parameters and prediction with hierarchical matrice...Alexander Litvinenko
We compare four numerical methods for the prediction of missing values in four different datasets.
These methods are 1) the hierarchical maximum likelihood estimation (H-MLE), and three machine learning (ML) methods, which include 2) k-nearest neighbors (kNN), 3) random forest, and 4) Deep Neural Network (DNN).
From the ML methods, the best results (for considered datasets) were obtained by the kNN method with three (or seven) neighbors.
On one dataset, the MLE method showed a smaller error than the kNN method, whereas, on another, the kNN method was better.
The MLE method requires a lot of linear algebra computations and works fine on almost all datasets. Its result can be improved by taking a smaller threshold and more accurate hierarchical matrix arithmetics. To our surprise, the well-known kNN method produces similar results as H-MLE and worked much faster.
Identification of unknown parameters and prediction of missing values. Compar...Alexander Litvinenko
H-matrix approximation of large Mat\'{e}rn covariance matrices, Gaussian log-likelihoods.
Identifying unknown parameters and making predictions
Comparison with machine learning methods.
kNN is easy to implement and shows promising results.
Fast and accurate metrics. Is it actually possible?Bogdan Storozhuk
This talk is a story about complete redesign of one data structure from Dropwizard Metrics library to achieve some way of measuring histogram without outliers, approximations and with acceptable performance. We will talk about hard and controversial decisions programmer should make to design fast, concise but in the same time very simple data structures. You will learn about: memory consumption optimizations, minimizing allocations, decreasing GC pressure, achieving thread safety.
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.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
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.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
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.
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?
1. Data Structures & Algorithm
CS-102
Lecture 8
Binary Heaps
A priority Queue Data Structures
Lecturer: Syeda Nazia Ashraf
1
2. 2
Heap
• A heap is a complete binary tree that
conforms to the heap order.
• The heap order property: in a (min)
heap, for every node X, the key in the
parent is smaller than (or equal to) the key
in X.
• Or, the parent node has key smaller than
or equal to both of its children nodes.
3. 3
Heap
• Analogously, we can define a max-heap,
where the parent has a key larger than the
its two children.
• Thus the largest key would be in the root.
22. Inserting into a Heap
22
Max Heap
To add an item to a heap, we follow the reverse procedure. Place it in the next
leaf position and move it up.
Again, we require O(h) or O(logn) exchanges.
27. 27
DeleteMin
• Deletion in Max (or Min) Heap always happens at the root
to remove the Maximum (or minimum) value.
• Deleting it (or removing it) from root causes a hole which
needs to be filled.
13
16
21
31
26
24
65 32
68
19
1
2 3
7
6
5
4
8 9 10
14
11
36. Let's start with this heap. A
deletion will remove the T
at the root.
To work out how we're going
to maintain the heap property,
use the fact that a complete
tree is filled from the left. So
that the position which must
become empty is the one
occupied by the M. Put it in
the vacant root position.
DeleteMax
36
37. This has violated the condition
that the root must be greater
than each of its children. So
interchange the M with the
larger of its children.
The left subtree has now lost
the heap property. So again
interchange the M with the
larger of its children.
This tree is now a heap
again, so we're finished.
DeleteMax
We need to make at most h interchanges of a root of a subtree with one of its children to
fully restore the heap property. Thus deletion from a heap is O(h) or O(logn).
37
38. 38
BuildHeap
• Suppose we are given as input N keys (or
items) and we want to build a heap of the
keys.
• Obviously, this can be done with N
successive inserts.
• Each call to insert will either take unit time
(leaf node) or log2N (if new key percolates
all the way up to the root).
39. 39
BuildHeap
• The worst time for building a heap of N
keys could be Nlog2N.
• It turns out that we can build a heap in
linear time.
40. 40
BuildHeap
• Suppose we have a method
percolateDown(p) which moves down the
key in node p downwards.
• This is what was happening in deleteMin.
43. 43
BuildHeap
• The general algorithm is to place the N
keys in an array and consider it to be an
unordered binary tree.
• The following algorithm will build a heap
out of N keys.
for( i = N/2; i > 0; i-- )
percolateDown(i);
57. Other Heap Operations
• decreaseKey(p, delta):
lowers the value of the key at position ‘p’ by the
amount ‘delta’. Since this might violate the heap order,
the heap must be reorganized with percolate up (in
min heap) or down (in max heap).
• increaseKey(p, delta):
opposite of decreaseKey.
• remove(p):
removes the node at position p from the heap. This is
done by first decreaseKey(p, delta) and then
performing deleteMin().
57