The document discusses arrays and various operations that can be performed on arrays including traversing, searching, insertion, deletion, and sorting. It defines linear arrays as lists of homogeneous data elements of a finite number and describes different ways of representing arrays using subscripts, Fortran notation, and Pascal notation. The document also provides algorithms for traversing, inserting, deleting, linear searching, binary searching, and different sorting methods like bubble sort, insertion sort, and selection sort.
An Introduction to Higher Order Functions in Spark SQL with Herman van HovellDatabricks
Nested data types offer Apache Spark users powerful ways to manipulate structured data. In particular, they allow you to put complex objects like arrays, maps and structures inside of columns. This can help you model your data in a more natural way.
While this feature is certainly useful, it can quite bit cumbersome to manipulate data inside of complex objects because SQL (and Spark) do not have primitives for working with such data. In addition, it is time-consuming, non-performant, and non-trivial. During this talk we will discuss some of the commonly used techniques for working with complex objects, and we will introduce new ones based on Higher-order functions. Higher-order functions will be part of Spark 2.4 and are a simple and performant extension to SQL that allow a user to manipulate complex data such as arrays.
Spark Schema For Free with David SzakallasDatabricks
DataFrames are essential for high-performance code, but sadly lag behind in development experience in Scala. When we started migrating our existing Spark application from RDDs to DataFrames at Whitepages, we had to scratch our heads real hard to come up with a good solution. DataFrames come at a loss of compile-time type safety and there is limited support for encoding JVM types.
We wanted more descriptive types without the overhead of Dataset operations. The data binding API should be extendable. Schema for input files should be generated from classes when we don’t want inference. UDFs should be more type-safe. Spark does not provide these natively, but with the help of shapeless and type-level programming we found a solution to nearly all of our wishes. We migrated the RDD code without any of the following: changing our domain entities, writing schema description or breaking binary compatibility with our existing formats. Instead we derived schema, data binding and UDFs, and tried to sacrifice the least amount of type safety while still enjoying the performance of DataFrames.
Spark schema for free with David SzakallasDatabricks
DataFrames are essential for high-performance code, but sadly lag behind in development experience in Scala. When we started migrating our existing Spark application from RDDs to DataFrames at Whitepages, we had to scratch our heads real hard to come up with a good solution. DataFrames come at a loss of compile-time type safety and there is limited support for encoding JVM types.
We wanted more descriptive types without the overhead of Dataset operations. The data binding API should be extendable. Schema for input files should be generated from classes when we don’t want inference. UDFs should be more type-safe. Spark does not provide these natively, but with the help of shapeless and type-level programming we found a solution to nearly all of our wishes. We migrated the RDD code without any of the following: changing our domain entities, writing schema description or breaking binary compatibility with our existing formats. Instead we derived schema, data binding and UDFs, and tried to sacrifice the least amount of type safety while still enjoying the performance of DataFrames.
An Introduction to Higher Order Functions in Spark SQL with Herman van HovellDatabricks
Nested data types offer Apache Spark users powerful ways to manipulate structured data. In particular, they allow you to put complex objects like arrays, maps and structures inside of columns. This can help you model your data in a more natural way.
While this feature is certainly useful, it can quite bit cumbersome to manipulate data inside of complex objects because SQL (and Spark) do not have primitives for working with such data. In addition, it is time-consuming, non-performant, and non-trivial. During this talk we will discuss some of the commonly used techniques for working with complex objects, and we will introduce new ones based on Higher-order functions. Higher-order functions will be part of Spark 2.4 and are a simple and performant extension to SQL that allow a user to manipulate complex data such as arrays.
Spark Schema For Free with David SzakallasDatabricks
DataFrames are essential for high-performance code, but sadly lag behind in development experience in Scala. When we started migrating our existing Spark application from RDDs to DataFrames at Whitepages, we had to scratch our heads real hard to come up with a good solution. DataFrames come at a loss of compile-time type safety and there is limited support for encoding JVM types.
We wanted more descriptive types without the overhead of Dataset operations. The data binding API should be extendable. Schema for input files should be generated from classes when we don’t want inference. UDFs should be more type-safe. Spark does not provide these natively, but with the help of shapeless and type-level programming we found a solution to nearly all of our wishes. We migrated the RDD code without any of the following: changing our domain entities, writing schema description or breaking binary compatibility with our existing formats. Instead we derived schema, data binding and UDFs, and tried to sacrifice the least amount of type safety while still enjoying the performance of DataFrames.
Spark schema for free with David SzakallasDatabricks
DataFrames are essential for high-performance code, but sadly lag behind in development experience in Scala. When we started migrating our existing Spark application from RDDs to DataFrames at Whitepages, we had to scratch our heads real hard to come up with a good solution. DataFrames come at a loss of compile-time type safety and there is limited support for encoding JVM types.
We wanted more descriptive types without the overhead of Dataset operations. The data binding API should be extendable. Schema for input files should be generated from classes when we don’t want inference. UDFs should be more type-safe. Spark does not provide these natively, but with the help of shapeless and type-level programming we found a solution to nearly all of our wishes. We migrated the RDD code without any of the following: changing our domain entities, writing schema description or breaking binary compatibility with our existing formats. Instead we derived schema, data binding and UDFs, and tried to sacrifice the least amount of type safety while still enjoying the performance of DataFrames.
An overview of object oriented programming including the differences between OOP and the traditional structural approach, definitions of class and objects, and an easy coding example in C++. This presentation includes visual aids to make the concepts easier to understand.
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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.
2. Array
• An array is a collection of homogeneous type of data
elements.
• An array is consisting of a collection of elements .
• Operation Performed On Array:
1. Traversing
2. Search
3. Insertion
4. Deletion
5. Sorting
6. Merging
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
1
2
3
4
5
Representation of array
3. Linear Arrays
• A linear array is the list of finite number ‘N’ of homogeneous
data elements (i.e. data elements of same type)
• Length = UB – LB + 1
• Array A may be denoted by,
– A1, A2, A3, … AN - Subscript Notation
– A(1), A(2), A(3), …., A(N) – Fortran, PL/I, BASIC
– A[1], A[2], A[3],..,A[N] – PASCAL, C, C++, Java
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
4. Traversing
• This algorithm traverses a linear array A with lower bound LB
and upper bound UB.
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
//Using for loop
for k := LB to UB
Process -> LA [k];
//Using while loop
k := LB
while(k <= UB)
{
Process -> LA[k];
k:= k + 1;
}
5. Inserting
22
23
26
28
29
31
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
LA[1]
LA[2]
LA[3]
LA[4]
LA[5]
LA[6]
LA[7]
22
23
25
26
28
29
31
Algorithm Insert(LA, N, K, ITEM)
{
J := N; //Initialize counter
while(J >= K)
{
LA[J + 1] := LA [J]; // Move one elements downward
J := J - 1; // Decrease counter by 1
}
LA[K] := ITEM // Insert element
N := N + 1; // Reset N
}
6. Deleting
Here LA is a linear array with N elements.
LOC is the location where ITEM is to be deleted.
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
Algorithm Delete(LA, N, LOC, ITEM)
{
ITEM := LA[LOC] // Assign the elements to be deleted
for J := LOC to N do J := J + 1
{
LA[J] := LA [J + 1]; // Move Jth element upwards
}
N := N - 1; // Reset N
}
7. Searching Algorithms
• Linear Search
– A linear search sequentially moves through your collection (or data
structure) looking for a matching value.
– Worst case performance scenario for a linear search is that it needs to
loop through the entire collection; either because the item is the last
one, or because the item isn't found.
– In other words, if you have N items in your collection, the worst case
scenario to find an item is N iterations. This is known as O(N) using the
Big O Notation.
– Linear searches don't require the collection to be sorted.
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
8. Linear Search
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
Algorithm LinearSearch (LA, N, ITEM)
{
for J := 1 to N do J := J + 1
{
if(ITEM = LA [j]) then
{
write (ITEM +" found at location " +J);
Return;
}
}
if(J > N) then
{
write (ITEM +" does not exist.");
}
}
55 88 66 77 99 11 6
J = 1 J = 2 J = 3
= 6= 6 = 6= 6 = 6= 6 6 found at location 3
9. Searching Algorithms
• Binary Search
– Binary search relies on a divide and conquer strategy to find a value
within an already-sorted collection.
– The algorithm is deceptively simple.
– Binary search requires a sorted collection.
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
15. Bubble Sort
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
Algorithm Bubble (DATA, N)
{
for K : = 1 to N -1 do K := K + 1
{
PTR : = 1;
While(PTR <= N - K)
{
if(DATA [PTR] > DATA [PTR +1]) then
Interchange (DATA [PTR] and DATA [PTR +1])
PTR := PTR +1;
}
}
}
16. Insertion Sort
• Suppose an array A with N elements, the insertion sort algorithm scans A
from 1 to N, inserting each element A [K] into its proper position in the
previously sorted sub-array A[1], A [2] , …, A[K-1].
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
77 33 44 11 88 22 66 55
77 33 44 11 88 22 66 55
33 77 44 11 88 22 66 55
33 44 77 11 88 22 66 55
11 33 44 77 88 22 66 55
11 33 44 77 88 22 66 55
11 22 33 44 77 88 66 55
11 22 33 44 66 77 88 55
11 22 33 44 55 66 77 88
Pass
K = 1
K = 2
K = 3
K = 4
K = 5
K = 6
K = 7
K = 8
Sorted
1 2 3 4 5 6 7 8
17. Insertion Sort
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
Algorithm INSERTION (DATA, N)
{
for K:= 1 to N do K := K + 1
{
TEMP := DATA [K];
PTR := K - 1;
while (PTR >= 0 && TEMP < DATA [PTR])
{
DATA [PTR + 1] := DATA [PTR];
PTR = PTR - 1;
}
DATA [PTR + 1]:= TEMP;
}
}
18. Selection Sort
• Selection sort algorithm for sorting A works as follows:
– First find the smallest element in the list and put it in the
first position.
– Then find the second smallest element in the list and put it
in the second position.
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
19. Selection Sort
Suppose an array A with 8 elements as follows:
77, 33, 44, 11, 88, 22, 66, 55.
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
77 33 44 11 88 22 66 55
11 33 44 77 88 22 66 55
11 22 44 77 88 33 66 55
11 22 33 77 88 44 66 55
11 22 33 44 88 77 66 55
11 22 33 44 55 77 66 88
11 22 33 44 55 66 77 88
11 22 33 44 55 66 77 88
Pass
K = 1
K = 2
K = 3
K = 4
K = 5
K = 6
K = 7
1 2 3 4 5 6 7 8
LOC = 4
LOC = 6
LOC = 6
LOC = 6
LOC = 8
LOC = 7
LOC = 7
Sorted
20. Selection Sort
Nilesh Dalvi, Lecturer@Patkar-Varde College, Goregaon(W).
Algorithm SELECTION (A, N)
{
for J := 1 to N do J := J + 1
{
MINI(A, J, N, LOC);
[Interchange A[J] and A[LOC]];
TEMP := A[J];
A[J] := A[LOC];
A[LOC] := TEMP;
}
}
MINI(A, K, N, LOC)
{
MIN := A[K] and LOC := K;
for J := K + 1 to N do J := J + 1
{
if (MIN > A [J]) then
{
MIN := A [J];
LOC := J;
}
}
Return LOC;
}