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You are given an undirected graph representing a social network. Nodes are users in the network, edges represent interactions between users (i.e., messages exchanged between them).
Edges are weighted as follows:
No interaction: no edge
Otherwise - edge weight: the number interactions.
You should:
- Find one example of a question (task) that can be answered using this representation, and one that cannot.
- How would you modify the network representation to answer the second question?
- What should you consider when changing the representation? What are the trade-offs involved?
Describe an Alice event of the BDE format that will make a ballerina jump up when a key is pressed, spin around for as long as the key is held down, and return to the ground when the user lets go of the key.
Compare the women in 1999 to the women in 2012 and to the men in 1999 and 2012.
What is the two-phase locking protocol?
Design a combinational circuit that computes the 4-bit leading zero detecting function. A leading zero detecting function counts the number of zeros in the most significant bits before the first '1'.
What typical units of data are distributed over sites?
Create the inverse version of the number guesser program. In this version of the program, the user comes up with the number and the computer will 'guess' the user's number. Your algorithm should be able to find a number between 1 and 100 within seven..
Compare and contrast the various cognitive models.
What are apps and why are they so popular? Do you use any apps regularly? Which ones, and what are their functions? What are the benefits of apps? The disadvantages?
Refer again to the information about the Reliable Pharmaceutical Service (RPS) at the end of Chapter 1, "The World of the Information Systems Analyst."
why do you think that so much of the software that ran on large-scale computers was custom written by programmers
Then two players take turns picking a coin from the sequence, but can only pick the first or the last coin of the (remaining) sequence. The goal is to collect coins of the largest total value. For this problem, n is even.
Research and/or think about what a "View" is related to databases and explain what the benefits are of using Views in a database? Under what circumstances would you break down an overall design to include individual user views?
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