Presentation is loading. Please wait.

Presentation is loading. Please wait.

Selecting news to suit a group of criteria: an exploration Judith Masthoff University of Brighton.

Similar presentations


Presentation on theme: "Selecting news to suit a group of criteria: an exploration Judith Masthoff University of Brighton."— Presentation transcript:

1 Selecting news to suit a group of criteria: an exploration Judith Masthoff University of Brighton

2 Average Strategy ABCDEFGHIJ John Adam Mary Group list: (E, F) H (D, J) A I B G C Use average of the individual ratings

3 Least Misery Strategy ABCDEFGHIJ John Adam Mary Group list: F E (H, J, D) G B I C A Use minimum of the individual ratings

4 Average Without Misery Strategy ABCDEFGHIJ John Adam Mary Group list: (E, F) H (D, J) B G Use average of the individual ratings, excluding items below threshold (say 4)

5 Experiment: How people do it 36 subjects Given ratings of news items on three criteria Which to watch if only time for 1 item, 2 items, …, 7 items

6 Criteria used Importance of the news in general Relevance of the location to you Recency of the news ABCDEFGHIJ John Adam Mary

7 Criteria used Importance of the news in general Relevance of the location to you Recency of the news ABCDEFGHIJ Importance Location Recency

8 s5FEAIJDH s7HB s33JD s22 s1HI s29JDB s20DHIJ s13HJDAI s28 s25DBJ s3AEIHJD s19JADHI Results - Part 1

9 s5FEAIJDH s7HB s33JD s22 s1HI s29JDB s20DHIJ s13HJDAI s28 s25DBJ s3AEIHJD s19JADHI Results - Part 1 Red = Average Strategy

10 s5FEAIJDH s7HB s33JD s22 s1HI s29JDB s20DHIJ s13HJDAI s28 s25DBJ s3AEIHJD s19JADHI Results - Part 1 Red = Average Strategy Shaded =Least Misery Strategy

11 s4EFAIHJD s23JH s24B s26JHID s16HIJ s6HJDBI s8G s10AI s12ID s2 s30DAIJ s15JHDAI s27IAJHG s11AFIHJ s21HDBJ Results - Part 2

12 s4EFAIHJD s23JH s24B s26JHID s16HIJ s6HJDBI s8G s10AI s12ID s2 s30DAIJ s15JHDAI s27IAJHG s11AFIHJ s21HDBJ Results - Part 2 Red = Average Strategy

13 s4EFAIHJD s23JH s24B s26JHID s16HIJ s6HJDBI s8G s10AI s12ID s2 s30DAIJ s15JHDAI s27IAJHG s11AFIHJ s21HDBJ Results - Part 2 Red = Average Strategy Red dotted = Average Without Misery Strategy

14 s14AEIFHJD s31FIB s32DJ s35JHD s36DFIJ s17FEIHJD s18HJDI s34IJFH? Results - Part 3

15 Introduction of A and I A (10, 1, 10) I (10, 3, 7) Grey = This experiment Black = Old experiment

16 Dealing with inequality

17 Average Strategy ABCDEFGHIJ John Adam Mary Group list: (E, F) H (D, J) A I B G C Use average of the individual ratings

18 Average over Important Criteria ABCDEFGHIJ John Mary Group list: A E (F, I) (H, J) D G B C Use average of the individual ratings

19 Least Misery Strategy ABCDEFGHIJ John Adam Mary Group list: F E (H, J, D) G B I C A Use minimum of the individual ratings

20 Least Misery For Important Criteria ABCDEFGHIJ John Mary Group list: A F E I (H, J, D) G B C Use minimum of the individual ratings

21 Average Strategy ABCDEFGHIJ John Adam Mary Group list: (E, F) H (D, J) A I B G C Use average of the individual ratings

22 Average Strategy with Weights ABCDEFGHIJ John Adam Mary Group list: E A F I H J D G B C (3-1-3) E F A (H,I) J D G B C (2-1-2) Use average of the individual ratings

23 Average Without Misery Strategy ABCDEFGHIJ John Adam Mary Group list: (E, F) H (D, J) Use average of the individual ratings, excluding items below threshold (say 6)

24 Average Without Misery for Some ABCDEFGHIJ John Adam Mary Group list: (E, F) H (D, J) A I (threshold 6) (E, F) A I (threshold 7) Use average of the individual ratings, excluding items below threshold (say 6)

25 s5FEAIJDH s7HB s33JD s22 s1HI s29JDB s20DHIJ s13HJDAI s28 s25DBJ s3AEIHJD s19JADHI Results - Part 1 Red = Average Strategy Shaded =Least Misery Strategy

26 s5FEAIJDH s7HB s33JD s22 s1HI s29JDB s20DHIJ s13HJDAI s28 s25DBJ s3AEIHJD s19JADHI Results - Part 1 Red = Average Strategy Shaded =Least Misery Strategy Blue dotted = Average Without Misery for Some

27 s4EFAIHJD s23JH s24B s26JHID s16HIJ s6HJDBI s8G s10AI s12ID s2 s30DAIJ s15JHDAI s27IAJHG s11AFIHJ s21HDBJ Results - Part 2 Red = Average Strategy Dotted = Average Without Misery

28 s4EFAIHJD s23JH s24B s26JHID s16HIJ s6HJDBI s8G s10AI s12ID s2 s30DAIJ s15JHDAI s27IAJHG s11AFIHJ s21HDBJ Results - Part 2 Red = Average Strategy Blue = Average With Weights Dotted = Average Without Misery (blue: for Some)

29 s14AEIFHJD s31FIB s32DJ s35JHD s36DFIJ s17FEIHJD s18HJDI s34IJFH? Results - Part 3

30 s14AEIFHJD s31FIB s32DJ s35JHD s36DFIJ s17FEIHJD s18HJDI s34IJFH? Results - Part 3 Yellow shading = Least Misery for Important Criteria

31 Conclusions Similarity between multiple criteria and multiple people Main issue is inequality in importance Adapted strategies help to explain a bit But more work needed


Download ppt "Selecting news to suit a group of criteria: an exploration Judith Masthoff University of Brighton."

Similar presentations


Ads by Google