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 Blending_I — Constraint detection

A food is manufactured by refining raw oils and blending them together . The raw oils are of two categories : Vegetable oils -LRB- VEG1 , VEG2 -RRB- and Non-vegetable oils -LRB- OIL1 , OIL2 , OIL3 -RRB- . Each oil may be purchased for immediate delivery -LRB- January -RRB- or bought on the futures market for delivery in a subsequent month . Prices at present and in the futures market are given in price/ton in a table . The final product sells at 150 per ton . Vegetable oils and non-vegetable oils require different production lines for refining . In any month , it is not possible to refine more than 200 tons of vegetable oils and more than 250 tons of non-vegetable oils . There is no loss of weight in the refining process , and the cost of refining may be ignored . It is possible to store up to 1000 tons of each raw oil for use later . The cost of storage for vegetable and non-vegetable oil is 5 per ton per month . The final product can not be stored , nor can refined oils be stored . There is a technological restriction of hardness on the final product : in the units in which hardness is measured , this must lie between 3 and 6 . It is assumed that hardness blends linearly and that the hardnesses of the raw oils are : 8.8 -LRB- VEG1 -RRB- , 6.1 -LRB- VEG2 -RRB- , 2.0 -LRB- OIL1 -RRB- , 4.2 -LRB- OIL2 -RRB- , 5.0 -LRB- OIL3 -RRB- . What buying and manufacturing policy should the company pursue in order to maximise profit ? At present , there are 500 tons of each type of raw oil in storage . It is required that these stocks will also exist at the end of June .

Problem Blending_I — Detection of the decisions and objects to be modeled

A food is manufactured by refining raw oils and blending them together . The raw oils are of two categories : Vegetable oils -LRB- VEG1 , VEG2 -RRB- and Non-vegetable oils -LRB- OIL1 , OIL2 , OIL3 -RRB- . Each oil may be purchased for immediate delivery -LRB- January -RRB- or bought on the futures market for delivery in a subsequent month . Prices at present and in the futures market are given in price/ton in a table . The final product sells at 150 per ton . Vegetable oils and non-vegetable oils require different production lines for refining . In any month , it is not possible to refine more than 200 tons of vegetable oils and more than 250 tons of non-vegetable oils . There is no loss of weight in the refining process , and the cost of refining may be ignored . It is possible to store up to 1000 tons of each raw oil for use later . The cost of storage for vegetable and non-vegetable oil is 5 per ton per month . The final product can not be stored , nor can refined oils be stored . There is a technological restriction of hardness on the final product : in the units in which hardness is measured , this must lie between 3 and 6 . It is assumed that hardness blends linearly and that the hardnesses of the raw oils are : 8.8 -LRB- VEG1 -RRB- , 6.1 -LRB- VEG2 -RRB- , 2.0 -LRB- OIL1 -RRB- , 4.2 -LRB- OIL2 -RRB- , 5.0 -LRB- OIL3 -RRB- . What buying and manufacturing policy should the company pursue in order to maximise profit ? At present , there are 500 tons of each type of raw oil in storage . It is required that these stocks will also exist at the end of June .

Back to list