def novelty_context_function(sequence, subseqence_start, subsequence_end):
"""
Takes a sequence S and the indices I of a subseqeunce and returns the
novelty context of that subsequence, i.e. all elements preceding I in S.
"""
verify_subsequence(sequence, subsequence_start, subsequence_end)
context_start = max(0, subsequence_start - left_width)
context_end = max(0, subsequence_start - 1)
return [sequence[context_start, context_end]]
def novelty_context_function(sequence, subseqence_start, subsequence_end):
"""
Takes a sequence S and the indices I of a subseqeunce and returns the
novelty context of that subsequence, i.e. all elements preceding I in S.
"""
verify_subsequence(sequence, subsequence_start, subsequence_end)
context_start = max(0, subsequence_start - left_width)
context_end = max(0, subsequence_start - 1)
return [sequence[context_start, context_end]]
def _get_local_context(sequence, subsequence_start, subsequence_end, left_width, right_width):
verify_subsequence(sequence, subsequence_start, subsequence_end)
left_context_start = max(0, subsequence_start - left_width)
left_context_end = max(0, subsequence_start - 1)
sequence_end = len(sequence) - 1
right_context_start = min(sequence_end, subsequence_end + 1)
right_context_end = min(sequence_end, subsequence_end + right_width)
return [sequence[left_context_start:left_context_end], sequence[right_context_start:right_context_end]]
def trivial_context_function(sequence, subsequence_start, subsequence_end):
"""
Takes a sequence S and the indices I of a subseqeunce and returns the
trivial context of that subsequence, i.e. all other elements in S.
"""
verify_subsequence(sequence, subsequence_start, subsequence_end)
left_context_start = 0
left_context_end = max(0, subsequence_start - 1)
sequence_end = len(sequence) - 1
right_context_start = min(sequence_end, subsequence_end + 1)
right_context_end = sequence_end
return [sequence[left_context_start:left_context_end], sequence[right_context_start:right_context_end]]
def _get_local_context(sequence, subsequence_start, subsequence_end,
left_width, right_width):
verify_subsequence(sequence, subsequence_start, subsequence_end)
left_context_start = max(0, subsequence_start - left_width)
left_context_end = max(0, subsequence_start - 1)
sequence_end = len(sequence) - 1
right_context_start = min(sequence_end, subsequence_end + 1)
right_context_end = min(sequence_end, subsequence_end + right_width)
return [
sequence[left_context_start:left_context_end],
sequence[right_context_start:right_context_end]
]
def trivial_context_function(sequence, subsequence_start, subsequence_end):
"""
Takes a sequence S and the indices I of a subseqeunce and returns the
trivial context of that subsequence, i.e. all other elements in S.
"""
verify_subsequence(sequence, subsequence_start, subsequence_end)
left_context_start = 0
left_context_end = max(0, subsequence_start - 1)
sequence_end = len(sequence) - 1
right_context_start = min(sequence_end, subsequence_end + 1)
right_context_end = sequence_end
return [
sequence[left_context_start:left_context_end],
sequence[right_context_start:right_context_end]
]
