Find all the frequent subsequences with support ? 50% given the sequence database shown in Table 7.15. Assume that there are no timing constraints imposed on the sequences.

What will be an ideal response?

< {A} >, < {B} >, < {C} >, < {D} >, < {E} >
< {A} {C} >, < {A} {D} >, < {A} {E} >, < {B} {C} >,
< {B} {D} >, < {B} {E} >, < {C} {D} >, < {C} {E} >, < {D, E} >

Computer Science & Information Technology

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