All posts by : chebby

 Assignments Choose any 2 questions each week: Must provide a heading to identify which Chapter and which Questions were chosen. Must be a WORD document with APA formatting. (300-400 words)   

Discussion #2: What are the main reasons for the recent popularity of data mining? 

Discussion #3: Discuss what an organization should consider before making a decision to purchase data mining software. 

Discussion #4: Distinguish data mining from other analytical tools and techniques.

 Discussion #5: Discuss the main data mining 

Please write a post for the two documents with 150 words each substantive. A substantive post will do at least two of the following:

• Ask an interesting, thoughtful question pertaining to the topic
• Answer a question (in detail) posted by another student or the instructor
• Provide extensive additional information on the topic
• Explain, define, or analyze the topic in detail
• Share an applicable personal experience
• Provide an outside source (for example, an article from the UC Library) that applies to the topic, along with additional information about the topic or the source (please cite properly in APA)
• Make an argument concerning the topic.

At least one scholarly source should be used in the initial discussion thread. Be sure to use information from your readings and other sources from the UC Library. Use proper citations and references in your post.

Imagine you are preparing for an interview with a company as an IT manager. Part of the interview process is providing a work sample. You must provide an analysis of Amazon’s business strategy and explain what part IT governance functions in Amazon reaching their strategic goal to demonstrate your understanding of IT governance and IT strategic vision.  

Research at least 2 articles on Amazon’s business strategy.

Develop a 1- to 2-page checklist detailing the main points Amazon’s IT department should consider to be properly aligned to Amazon’s strategic business plan. Include relevant laws, regulations, and industry standards that would impact the business plan, such as PCI standards and SOX regulations. 

Write a 1- to 2-page summary of how Amazon’s IT Governance works with the Strategic Business Plan to achieve continued success and growth.

Format your citations according to APA guidelines.

Submit your assignment.

This week we focus on the various maturity stages and variables in the middle manager best practices are.  Refer to chapter 12 from this week’s reading and note the various stages, what they are and why they are important.

See attachment below. 

Project: Information technologies trend impacting you at your workspace.

** Consider your own experiences in the challenging and changing world of technology. Then select one of the information technology or information system trends which have impacted you in the workplace. 

 *** Put together a Five to Six page summary explaining the trend. 

  ** Define the trend by locating at least three articles to support it, and then explain the trend as you experienced it in the workplace. 

  Feel free to utilize resources to further support your experience. 

** The advancement of technologies in business is changing the world of work. 

  Incorporating the new technology and software into the business environment to remain competitive continues to be a challenge for organizations. The impact of the advances has also had a profound impact on workers.

** NO TITLE PAGE. The main focus is the trend and your experience. 

  This is an original work and should not include any copy/paste from the Web. 

  Plagiarism, no matter the circumstance, will result in the failure of this assignment. 

  Ensure your citations are correct and that your work is original.

 Please go through the attached document with instructions and requirements completely before providing the answer

This is an Access Database assignment.

Researchers from the School of BioSciences have requested our help with one of their

experiments. They are performing behavioural experiments with zebrafish. At any one instance in

time there are a large number of zebrafish in the aquarium. For their particular experiment, the

biologist take a snapshot of the aquarium and then need to find the longest series of zebrafish such

the length of each fish along the horizontal direction in the aquarium is increasing. They also need

to know the number of zebra fish in this series.

For example, the snapshot of the aquarium resulted in fish lengths of [2, 5, 3, 7, 11, 1, 12, 4, 15, 14, 6, 16].

One possible longest series of increasing lengths in this case is [2, 3, 7, 11, 12, 14, 16] with 7 zebrafish.

We say one possible longest series of increasing lengths here because it is not necessarily unique.

For example, the length 14 in the output could be replaced with 15: [2, 3, 7, 11, 12, 15, 16] and also

be valid.

In this question you will consider algorithms for finding the longest series of increasing lengths

via the function LongestIncreasingLengths(A[0, · · · , n − 1]), as well as the size of this output

array.

(a) [1+2+1 = 4 Marks] Consider a recursive algorithm:

i [1 Mark]Write down a recurrence relation for the function LongestIncreasingLengths.

ii [2 Marks] Using this recurrence relation, write a recursive algorithm in pseudocode for

LongestIncreasingLengths that only calculates the array size of the longest series of

increasing lengths. You do not need to output the actual array containing the longest

series of increasing lengths in this part of the question. For the example above with input

A = [2, 5, 3, 7, 11, 1, 12, 4, 15, 14, 6, 16], the output should just be 7. The pseudocode should

be about 10 lines of code.

iii [1 Mark] What is the time complexity of this recursive algorithm? Justify your answer.

(b) [5+1+1 = 7 Marks]

i [5 Marks] Building on from your recursive algorithm in part (a), write down a dynamic

programming implementation in pseudocode for the function

LongestIncreasingLengths(A[0, · · · , n − 1]) to find the longest series of increasing

lengths. This should also output the size of the longest series of increasing lengths. The

pseudocode should be about 20 lines of code.

ii [1 Mark] Explain how the recurrence relation used for your dynamic programming imple-

mentation involves overlapping instances.

iii [1 Mark] What is the time complexity of your algorithm and how much auxiliary space

was required. Justify your answer.

(c) [1+2 = 3 Marks] The time complexity of the recursive algorithm for LongestIncreasingLengths

was exponential, while the dynamic programming algorithm lead to a polynomial

time complexity (note, you need to determine that polynomial above). Here we will investigate

an algorithm for the function LongestIncreasingLengths that has a time complexity of

O(n log n).

Consider building a set of arrays for the input array A[0, · · · , n − 1]. As we scan along A, we

will compare A[i] with the final element in each array in this set. This comparison will satisfy

the following conditions:

(1) If A[i] is smaller than the final element in each array, start a new array of size 1 with A[i].

(2) If A[i] is larger than the final element in each array, copy the longest array and append

A[i] to this new array.

(3) If A[i] is in between, find the array with the final element that is greater than A[i] and

replace that element with A[i].

i [1 Mark] Write down the set of arrays that satisfy these rules for the input array

A = [0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15].

ii [2 Marks] Building from these conditions, explain how an algorithm for the function

LongestIncreasingLengths could run with time complexity O(n log n). You may make

use any algorithm introduced in the lectures to help you with your explanation. Note: you

do not have to write this algorithm in pseudocode. We are expecting that you write a short

paragraph or a short list of bullet points describing the important steps of the algorithm

to explain the time complexity.

Hint: what if you only consider the final elements of this set of arrays as a single array?