Correct predictions are in blue. If we detect only a subset of a labelled sentence, we highlight the caught part as blue, the missing part light blue. False positives are in green and false negatives are in red.

Problem 004 (Mystery Shopper) — Constraint detection

A well-known cosmetic company wants to evaluate the performance of her saleladies , who station at the company 's counters at various department stores in different geographical locations . For this purpose , the company has hired some secret agents to disguise as shoppers to visit the salesladies . The visits must be scheduled in such a way that each saleslady must be visited by shoppers of different varieties and that the visits should be spaced out roughly evenly . Also , shoppers should visit salesladies in different geographic locations . The exact constraints , which ensure the statistical soundness of the project , follow . There are totally 19 outlets to be visited . They are located in 4 geographical regions : 5 outlets in Area 1 -LRB- outlet 1-5 -RRB- , 5 outlets in Area 2 -LRB- outlet 6-10 -RRB- , 5 outlets in Area 3 -LRB- outlet 11-15 -RRB- , and 4 outlets in Area 4 -LRB- outlet 16-19 -RRB- . There will be 1 to 4 salesladies in each outlet . Each saleslady will be visited by 4 different shoppers . The frequency of visits to a particular outlet will be the number of salesladies times 4 . There are totally 35 salesladies working in all outlets everyday . Therefore , the total number of visits is 140 . The shoppers are divided into 4 groups according to age , professions , and etc. . Each group has 10 shoppers . Therefore , the total number of shoppers is 40 . Therefore , in each group of shoppers , 5 shoppers will perform 3 visits and the other 5 shoppers will perform 4 visits . Each shopper should only visit 1 outlet in each of the 4 areas . All salesladies should be visited 2 times in the first 2 weeks of fieldwork . The total fieldwork period will be 4 weeks . Theoretically , each shopper has to pay 1 visit each week . However , shoppers making 4 visits must have done 2 visits by the end of the second week . Shoppers making 3 visits should have done 1 or 2 visits by the end of the second week . The data of the first 50 % visits will be analysed and put in an interim report . Listed below are locations of the 19 outlets and the number of salesladies in that particular outlet -LRB- outlets with * are boutiques -RRB- . * Outlet 1 : 2 . Outlet 2 : 4 . Outlet 3 : 1 . Outlet 4 : 2 . Outlet 5 : 1 . Outlet 6 : 2 . Outlet 7 : 1 . Outlet 8 : 1 . Outlet 9 : 1 . * Outlet 10 : 2 . Outlet 11 : 2 . Outlet 12 : 2 . Outlet 13 : 1 . * Outlet 14 : 2 . * Outlet 15 : 1 . Outlet 16 : 2 . Outlet 17 : 2 . Outlet 18 : 4 . Outlet 19 : 2 Convention : shoppers 0 - 9 belong to group 1 , shoppers 10 - 19 belong to group 2 , shoppers 20 - 29 belong to group 3 , and shoppers 30 - 39 belong to group 4 . In each group , the first 5 shoppers make 3 visits and the remaining 5 shoppers make 4 visits . For example , in group 1 , shoppers 0 - 4 make 3 visits and shoppers 5 - 9 make 4 visits . Besides , for the salesladies : salesladies 0 - 1 belong to outlet 1 , salesladies 2 - 5 belong to outlet 2 , salesladies 6 belongs to outlet 3 , etc. and salesladies 33 - 34 belong to outlet 19 .

Problem 004 (Mystery Shopper) — Detection of the decisions and objects to be modeled

A well-known cosmetic company wants to evaluate the performance of her saleladies , who station at the company 's counters at various department stores in different geographical locations . For this purpose , the company has hired some secret agents to disguise as shoppers to visit the salesladies . The visits must be scheduled in such a way that each saleslady must be visited by shoppers of different varieties and that the visits should be spaced out roughly evenly . Also , shoppers should visit salesladies in different geographic locations . The exact constraints , which ensure the statistical soundness of the project , follow . There are totally 19 outlets to be visited . They are located in 4 geographical regions : 5 outlets in Area 1 -LRB- outlet 1-5 -RRB- , 5 outlets in Area 2 -LRB- outlet 6-10 -RRB- , 5 outlets in Area 3 -LRB- outlet 11-15 -RRB- , and 4 outlets in Area 4 -LRB- outlet 16-19 -RRB- . There will be 1 to 4 salesladies in each outlet . Each saleslady will be visited by 4 different shoppers . The frequency of visits to a particular outlet will be the number of salesladies times 4 . There are totally 35 salesladies working in all outlets everyday . Therefore , the total number of visits is 140 . The shoppers are divided into 4 groups according to age , professions , and etc. . Each group has 10 shoppers . Therefore , the total number of shoppers is 40 . Therefore , in each group of shoppers , 5 shoppers will perform 3 visits and the other 5 shoppers will perform 4 visits . Each shopper should only visit 1 outlet in each of the 4 areas . All salesladies should be visited 2 times in the first 2 weeks of fieldwork . The total fieldwork period will be 4 weeks . Theoretically , each shopper has to pay 1 visit each week . However , shoppers making 4 visits must have done 2 visits by the end of the second week . Shoppers making 3 visits should have done 1 or 2 visits by the end of the second week . The data of the first 50 % visits will be analysed and put in an interim report . Listed below are locations of the 19 outlets and the number of salesladies in that particular outlet -LRB- outlets with * are boutiques -RRB- . * Outlet 1 : 2 . Outlet 2 : 4 . Outlet 3 : 1 . Outlet 4 : 2 . Outlet 5 : 1 . Outlet 6 : 2 . Outlet 7 : 1 . Outlet 8 : 1 . Outlet 9 : 1 . * Outlet 10 : 2 . Outlet 11 : 2 . Outlet 12 : 2 . Outlet 13 : 1 . * Outlet 14 : 2 . * Outlet 15 : 1 . Outlet 16 : 2 . Outlet 17 : 2 . Outlet 18 : 4 . Outlet 19 : 2 Convention : shoppers 0 - 9 belong to group 1 , shoppers 10 - 19 belong to group 2 , shoppers 20 - 29 belong to group 3 , and shoppers 30 - 39 belong to group 4 . In each group , the first 5 shoppers make 3 visits and the remaining 5 shoppers make 4 visits . For example , in group 1 , shoppers 0 - 4 make 3 visits and shoppers 5 - 9 make 4 visits . Besides , for the salesladies : salesladies 0 - 1 belong to outlet 1 , salesladies 2 - 5 belong to outlet 2 , salesladies 6 belongs to outlet 3 , etc. and salesladies 33 - 34 belong to outlet 19 .

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