The sum of weights for concepts is α c (1.335 − 2θ c ) because the weight for "month=2" is α c (0.81 − θ c ) and the weight for "day=22" is α c (0.525 − θ c ).
cumulative weight w i for this input sequence is w i s + α w (4.1 − 5θ w ) + α c (1.335 − 2θ c ).