Yioop - PHP Search Engine

-- Oct 10 In-Class Exercise Thread

A ->-> B is a MVD

A - B - C

Red Blue Green

Red Yellow Green

Red Blue Orange

Red Yellow Orange

A ->-> B is not a MVD

A - B - C

Red Blue Green

Red Yellow Black

Red Blue White

Red Yellow Orange

(Edited: 2018-10-10)

'''A ->-> B is a MVD''' A - B - C Red Blue Green Red Yellow Green Red Blue Orange Red Yellow Orange '''A ->-> B is not a MVD''' A - B - C Red Blue Green Red Yellow Black Red Blue White Red Yellow Orange

-- Oct 10 In-Class Exercise Thread

A ->-> B because Joe can have 2 emails, and that's independent from his 2 phone numbers.

   |     A      |             B       |         C          |
     Joe            joe123@email.com      555-555-555
     Joe            joe123@email2.com     555-123-456
     Joe            joe123@email.com      555-555-555
     Joe            joe123@email2.com     555-123-456

Not A ->-> B because even though Joe is taking both CS and PHIL classes, the course numbers depend on the class.

   |     A      |        B          |        C        |
     Joe              CS                   157A
     Joe              PHIL                 101
     Joe              CS                   100W
     Joe              PHIL                 186

(Edited: 2018-10-10)

A ->-> B because Joe can have 2 emails, and that's independent from his 2 phone numbers. | A | B | C | Joe joe123@email.com 555-555-555 Joe joe123@email2.com 555-123-456 Joe joe123@email.com 555-555-555 Joe joe123@email2.com 555-123-456 Not A ->-> B because even though Joe is taking both CS and PHIL classes, the course numbers depend on the class. | A | B | C | Joe CS 157A Joe PHIL 101 Joe CS 100W Joe PHIL 186

-- Oct 10 In-Class Exercise Thread

 MVD:
 CarMake . Model . Color
 Ford . F-250 . Blue
 Ford . F-250 . Yellow
 Ford . F-350 . Blue
 Ford . F-350 . Yellow

 Not MVD:
 CarMake . Model .  Color
 Ford . F-250 . Blue
 Ford . F-250 . Yellow
 Ford . F-350 . White
 Ford . F-350 . Black

(Edited: 2018-10-11)

MVD: CarMake . Model . Color Ford . F-250 . Blue Ford . F-250 . Yellow Ford . F-350 . Blue Ford . F-350 . Yellow Not MVD: CarMake . Model . Color Ford . F-250 . Blue Ford . F-250 . Yellow Ford . F-350 . White Ford . F-350 . Black

-- Oct 10 In-Class Exercise Thread

A -> -> B

  A .   B .   C
 a2 .  b2 .  c2
 a2 .  b2.  c3
 a2 .  b2 .  c4
 a3 .  b3 . c3
 a3 .  b3 . c4

Not A -> -> B

  A .   B .   C
 a2 .  b2 .  c2
 a2 .  b2 .  c3
 a2 .  b2 .  c4
 a3 .  b3 . c5
 a3 .  b3 . c6

A -> -> B A . B . C a2 . b2 . c2 a2 . b2. c3 a2 . b2 . c4 a3 . b3 . c3 a3 . b3 . c4 Not A -> -> B A . B . C a2 . b2 . c2 a2 . b2 . c3 a2 . b2 . c4 a3 . b3 . c5 a3 . b3 . c6

-- Oct 10 In-Class Exercise Thread

A ->-> B is an MVD

 A * B * C
 1 * 2 * 3
 1 * 4 * 3
 1 * 2 * 5
 1 * 4 * 5

A ->-> B is not an MVD

 A * B * C
 1 * 2 * 4
 1 * 2 * 5
 1 * 3 * 6
 1 * 3 * 7

(Edited: 2018-10-14)

A ->-> B is an MVD A * B * C 1 * 2 * 3 1 * 4 * 3 1 * 2 * 5 1 * 4 * 5 A ->-> B is not an MVD A * B * C 1 * 2 * 4 1 * 2 * 5 1 * 3 * 6 1 * 3 * 7

-- Oct 10 In-Class Exercise Thread

A->->C A B C A1 B1 C1 A1 B2 C1 A1 B3 C1 A2 B2 C2 A2 B1 C2

not(A->-> C)

A B C A1 B1 C1 A1 B2 C1 A1 B3 C1 A2 B7 C2 A2 B8 C2

A->->C A B C A1 B1 C1 A1 B2 C1 A1 B3 C1 A2 B2 C2 A2 B1 C2 not(A->-> C) A B C A1 B1 C1 A1 B2 C1 A1 B3 C1 A2 B7 C2 A2 B8 C2

-- Oct 10 In-Class Exercise Thread

Himanshu Mehta

A →→ B in MVD

A	B	C
1	2	6
1	3	6
1	2	7
1	3	7

A →→ B not in MVD

A	B	C
1	2	6
1	3	7
1	2	8
1	3	9

(Edited: 2018-10-14)

Himanshu Mehta A →→ B in MVD {| |- | A|| B|| C |- | 1|| 2|| 6 |- | 1|| 3|| 6 |- | 1|| 2|| 7 |- | 1|| 3|| 7 |} A →→ B not in MVD {| |- | A|| B|| C |- | 1|| 2|| 6 |- | 1|| 3|| 7 |- | 1|| 2|| 8 |- | 1|| 3|| 9 |}

-- Oct 10 In-Class Exercise Thread

A ->-> B is a MVD

A B C

C Java Python
C C++ Python
C Java C#
C C++ C#

A ->-> B is not a MVD
A B C
C Java Python
C C++ Scala
C Java Prolog
C C++ C#

(Edited: 2018-10-14)

A ->-> B is a MVD A B C C Java Python C C++ Python C Java C# C C++ C# A ->-> B is not a MVD A B C C Java Python C C++ Scala C Java Prolog C C++ C#

-- Oct 10 In-Class Exercise Thread

A -> -> B is a MVD A . B . C

  2 .  3 .  7
  2 .  9 .  7
  2 .  3 .  5
  2 .  9 .  5

A -> -> B is not a MVD

  A .  B .  C
  2 .  6 .  3
  2 .  4 .  5
  2 .  6 .  9
  2 .  4 .  7

A -> -> B is a MVD A . B . C 2 . 3 . 7 2 . 9 . 7 2 . 3 . 5 2 . 9 . 5 A -> -> B is not a MVD A . B . C 2 . 6 . 3 2 . 4 . 5 2 . 6 . 9 2 . 4 . 7

-- Oct 10 In-Class Exercise Thread

Ryan Moore A ->-> B MVD!

 A | B | C
 1 | 2 | 3
 1 | 4 | 3
 1 | 2 | 5
 1 | 4 | 5

A ->-> B not an MVD

 A | B | C
 1 | 2 | 4
 1 | 2 | 5
 1 | 3 | 6
 1 | 3 | 7

Ryan Moore A ->-> B MVD! A | B | C 1 | 2 | 3 1 | 4 | 3 1 | 2 | 5 1 | 4 | 5 A ->-> B not an MVD A | B | C 1 | 2 | 4 1 | 2 | 5 1 | 3 | 6 1 | 3 | 7