U1: Areas of Research Flashcards
1
Q
Cryptography
A
- Sender takes regular message, encrypts it, then sends to receiver
- Receiver decrypts message with code shared by sender and receiver
2
Q
Caesar Cipher/Shift
A
- Shifting the letters of a message by a no. of spots in the alphabet.
- Possible to crack with frequency analysis.
3
Q
Frequency Analysis
A
Investigating no. of occurrences of letters in a language
4
Q
Parallel Processing/Parallelization [A]
A
- Multiple processor cores work on the same task simultaneously.
- Processing shared between cores
5
Q
Parallel Processing/Parallelization [B]
A
- Always occurs when processors have +1 core.
- OS manages tasks cores perform, then combines results together
6
Q
Distributed Computing
A
- Similar to parallelization
- Cores and processors are in separate computers communicating over network
7
Q
Research from Distributed Computing
A
Researcher can set website allowing people across world to allow computers to help process tasks, speeding up completion.
8
Q
Data Mining
A
Analyzing large amounts of data to draw conclusions or predict future outcomes.
9
Q
Steps of Data Mining
A
- Data gathering, preparation and organization to improve chances of finding patterns
- Model building and evaluation → the application of model techniques for analysis
10
Q
Association
A
- Pattern is deciphered from relationships between items in same transaction
- Ex: retailer might identify customer always buying cream when buying chocolates
11
Q
Classification
A
Companies build software that learns how to classify data items into groups
12
Q
Clustering
A
Different objects with similar characteristics are grouped together
13
Q
Prediction
A
- Data mining technique used w/ others
- Involving trend analysis, classification, pattern matching and relation.
- Used to predict future event
14
Q
Decision Trees
A
- Starts w/ question having multiple answers
- Each leads to further question for data to be categorized, or so prediction can be made
15
Q
Big Data
A
Large amounts of data held at disposal
