Highly Repetitive & Pattern Incrementing

filters/highly_repetitive.py

@@ -0,0 +1,92 @@
+def break_and_compare(ls: list, k: int) -> list:
+ """
+ This function takes a list ls and an integer k as input and returns a list which is the first chunk of ls that is repeated k times. If no such chunk exists, it returns an empty list.
+
+ Parameters:
+
+ ls (list): The input list.
+ k (int): The integer value used for splitting and comparing the list.
+
+ """
+ n = len(ls)
+ while n % k != 0:
+ n -= 1
+ to_break = ls[:n]
+ residual = ls[n:]
+ chunk_size = n // k
+ while len(residual) < chunk_size:
+ # split into chunks
+ chunks = [to_break[i:i + chunk_size] for i in range(0, len(to_break), chunk_size)]
+ chunksMatch = True
+ # compare all chunks to first chunk
+ for chunk in chunks[1:]:
+ if chunk != chunks[0]:
+ chunksMatch = False
+ break
+ if chunksMatch:
+ # compare residual to first chunk
+ if residual == chunks[0][:len(residual)]:
+ return chunks[0]
+ chunk_size -= 1
+ new_residual = to_break[chunk_size * k:]
+ to_break = to_break[:chunk_size * k]
+ residual = new_residual + residual
+ return []
+
+def break_and_compare_wrapper(ls: list, start_k: int, end_k: int) -> list:
+ """
+
+ This function serves as a wrapper for the `break_and_compare` function. It takes an additional two integer parameters `start_k` and `end_k` to define a range of values for `k`. 
+ It iterates over this range and calls `break_and_compare` for each value of `k` within the range.
+
+ Parameters:
+ - `ls` (list): The input list.
+ - `start_k` (int): The starting value of `k` for the range (inclusive).
+ - `end_k` (int): The ending value of `k` for the range (inclusive).
+
+ """
+ # end_k is inclusive
+ ls = list(ls)
+ length = len(ls)
+ half = length // 2
+ for k in range(start_k, end_k + 1):
+ for i in range(0, half):
+ # remove some tokens from the end as well
+ rem = 2
+ # when rem = 0 -> 0.91 0.73 0.81
+ # when rem = 1 -> 0.91 0.78 0.84
+ # when rem = 2 -> 0.90 0.80 0.84 
+ # when rem = 3 -> 0.89 0.80 0.84
+ # when rem = 4 -> 0.89 0.80 0.84
+ # when rem = 5 -> 0.89 0.80 0.84
+ # when rem = 6 -> 0.89 0.80 0.84
+ for j in range(0, rem+1):
+ result = break_and_compare(ls[i:length - j], k)
+ if result:
+ return result, k
+ result = break_and_compare(ls[i:], k)
+ if result:
+ return result, i, k
+ result = break_and_compare(ls, k)
+ if result:
+ return result, k
+ return [], -1
+
+if __name__ == "__main__":
+# from transformers import AutoTokenizer
+# inp = """0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+# 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff"""
+# tokenizer = AutoTokenizer.from_pretrained(
+# "EleutherAI/pythia-70m-deduped",
+# )
+# inp = tokenizer(inp)['input_ids']
+# print(inp)
+# # for token in inp:
+# # print(token, tokenizer.decode(token))
+# print(break_and_compare_wrapper(inp, 2, 30))
+ ls = [1]
+ start_k = 1
+ end_k = 3
+ expected = ([1], 1)
+ output = break_and_compare_wrapper(ls, start_k, end_k)
+ print(output)

filters/pattern_incrementing.py

@@ -1,2 +1,301 @@
-def incrementing_sequences_filter(text):
- return True
+import re
+
+def replace_non_numeric_with_whitespace(text: str) -> str:
+ # Replace non-numeric characters with whitespace
+ # cleaned_text = re.sub(r'[^0-9]', ' ', text)
+ new_text = ""
+ for i in range(len(text)):
+ if text[i].isdigit():
+ new_text += text[i]
+ elif text[i] == "." and i > 0 and i < len(text)-1 and text[i-1].isdigit() and text[i+1].isdigit():
+ new_text += text[i]
+ else:
+ new_text += " "
+ cleaned_text = new_text
+
+ decimal_seen = False
+ notValidFloat = False
+ for i in range(len(cleaned_text)):
+ if cleaned_text[i] == " ":
+ decimal_seen = False
+ elif cleaned_text[i] == ".":
+ if decimal_seen:
+ notValidFloat = True
+ break
+ else:
+ decimal_seen = True
+ elif cleaned_text[i].isdigit():
+ continue
+ else:
+ notValidFloat = True
+ break
+
+ if notValidFloat:
+ # Replace non-numeric characters with whitespace
+ cleaned_text = re.sub(r'[^0-9]', ' ', text)
+
+ # Replace multiple consecutive whitespaces with a single whitespace
+ cleaned_text = re.sub(r'\s+', ' ', cleaned_text)
+
+ return cleaned_text
+
+def incrementing_sequences_filter(text : str) -> bool:
+ # count number of numeric and non-numeric characters
+ num_numeric = 0
+ num_non_numeric = 0
+
+ for char in text:
+ if char.isdigit():
+ num_numeric += 1
+ else:
+ num_non_numeric += 1
+
+ ratio_numeric = num_numeric / (num_numeric + num_non_numeric)
+
+ # print("ratio_numeric", ratio_numeric)
+
+ # if less than 5% of characters are numeric, return False
+ if ratio_numeric < 0.05:
+ return False
+
+ # remove all non numeric with whitespace
+ text = replace_non_numeric_with_whitespace(text)
+ if text.count(" ") != 0:
+ # convert them to a list
+ ls = list(map(float, text.split()))
+ else:
+ ls = list(text)
+
+ # print("After removing all non-numeric characters with whitespace", ls)
+
+ # Check for incrementing in chunks
+ # Adding this to handle cases like "A.1 , A.2 , A.3 , A.4, B.1 , B.2, B.3, C.1" 
+ ptr = 0
+ min_max = {}
+ chunk_num = 0
+ min_max[chunk_num] = (ls[ptr], ls[ptr+1], 2)
+ ptr += 1
+ while ptr < len(ls)-1:
+ if ls[ptr] < ls[ptr+1]:
+ min_max[chunk_num] = (
+ min(min_max[chunk_num][0], ls[ptr]),
+ max(min_max[chunk_num][1], ls[ptr+1]),
+ min_max[chunk_num][2] + 1
+ )
+ else:
+ chunk_num += 1
+ if ptr+2 < len(ls):
+ min_max[chunk_num] = (ls[ptr+1], ls[ptr+2], 1)
+ else:
+ min_max[chunk_num] = (ls[ptr+1], ls[ptr+1], 1)
+
+ ptr += 1
+
+ # remove chunks with size 1
+ min_max = {k: v for k, v in min_max.items() if v[2] > 1}
+
+ # if chunk ids are not consecutive, return False
+ chunksAreConsecutive = True
+ for i in range(len(min_max)-1):
+ if i+1 not in min_max:
+ chunksAreConsecutive = False
+ break
+
+ # print("min_max", min_max)
+
+ if chunksAreConsecutive:
+ # if all chunks have same min value and last chunk's max value is less than first chunk's max value, return True
+ for i in range(len(min_max)-1):
+ if min_max[i][0] != min_max[i+1][0]:
+ break
+ if i == len(min_max)-2 and min_max[i][1] <= min_max[0][1]:
+ return True
+
+ # When the list is too small, it is not an incrementing sequence
+ # Some results to decide on the threshold (P, R, F1) 
+ # Without Condition - 0.48 0.69 0.57
+ # when threshold is 3 - 0.58 0.69 0.63
+ # when threshold is 4 - 0.60 0.68 0.64
+ # when threshold is 5 - 0.62 0.65 0.64
+ # when threshold is 6 - 0.64 0.64 0.64
+ # when threshold is 7 - 0.67 0.63 0.65
+ # These values are subject to change based on the dataset and the code modifications done post procuring them
+ if len(ls) < 6:
+ return False
+
+ index_to_remove = []
+ # remove all repeating at fixed intervals
+ for i in range(len(ls)-1):
+ k = 1
+ while k < len(ls):
+ indices = []
+ anySame = False
+ for j in range(i, len(ls), k):
+ indices.append(j)
+ if ls[i] != ls[j]:
+ k += 1
+ anySame = True
+ break
+ if not anySame and len(indices) > 1:
+ index_to_remove.extend(indices)
+ k += 1
+ elif not anySame:
+ k += 1
+
+ # unravel the list
+ index_to_remove = list(set(index_to_remove))
+
+ new_list = []
+ for i in range(len(ls)):
+ if i not in index_to_remove:
+ new_list.append(ls[i])
+ ls = new_list
+
+ # print("After removing repeating at fixed intervals", ls)
+
+ # When post cleanup the list is too small, it is not an incrementing sequence
+ # This threshold leads to P, R, F1 of 0.71, 0.63, 0.67
+ # These values are subject to change based on the dataset and the code modifications done post procuring them
+ if len(ls) < 4:
+ return False
+
+ # Basic case where numbers are only increasing or decreasing
+ isIncreasing = True
+ isDecreasing = True
+ for i in range(len(ls)-1):
+ if ls[i] > ls[i+1]:
+ isIncreasing = False
+ if not isDecreasing:
+ break
+ if ls[i] < ls[i+1]:
+ isDecreasing = False
+ if not isIncreasing:
+ break
+ else:
+ isIncreasing = False
+ isDecreasing = False
+ break
+
+ if (isIncreasing or isDecreasing) and len(ls) > 1:
+ return True
+
+ # break the list into chunks where each chunk is increasing
+ increasing_chunks = []
+ chunk = []
+ for i in range(len(ls)-1):
+ if ls[i] <= ls[i+1]:
+ chunk.append(ls[i])
+ else:
+ chunk.append(ls[i])
+ increasing_chunks.append(chunk)
+ chunk = []
+ if len(ls) > 1:
+ chunk.append(ls[-1])
+ increasing_chunks.append(chunk)
+
+ # break the list into chunks where each chunk is decreasing
+ decreasing_chunks = []
+ chunk = []
+ for i in range(len(ls)-1):
+ if ls[i] >= ls[i+1]:
+ chunk.append(ls[i])
+ else:
+ chunk.append(ls[i])
+ decreasing_chunks.append(chunk)
+ chunk = []
+ if len(ls) > 1:
+ chunk.append(ls[-1])
+ decreasing_chunks.append(chunk)
+
+ #print lengths of chunks
+ # print("increasing_chunks", increasing_chunks)
+ # print("decreasing_chunks", decreasing_chunks)
+
+ # if first chunk is of unequal size remove it
+ if len(increasing_chunks) >= 2 and len(increasing_chunks[0]) != len(increasing_chunks[1]):
+ increasing_chunks.pop(0)
+ if len(decreasing_chunks) >= 2 and len(decreasing_chunks[0]) != len(decreasing_chunks[1]):
+ decreasing_chunks.pop(0)
+
+ # if last chunk is of unequal size remove it
+ if len(increasing_chunks) >= 2 and len(increasing_chunks[-1]) != len(increasing_chunks[-2]):
+ increasing_chunks.pop(-1)
+ if len(decreasing_chunks) >= 2 and len(decreasing_chunks[-1]) != len(decreasing_chunks[-2]):
+ decreasing_chunks.pop(-1)
+
+ # if any chunk is of unequal size return False
+ for chunk in increasing_chunks:
+ if len(chunk) != len(increasing_chunks[0]):
+ return False
+ for chunk in decreasing_chunks:
+ if len(chunk) != len(decreasing_chunks[0]):
+ return False
+
+ #print lengths of chunks
+ # print("increasing_chunks", increasing_chunks)
+ # print("decreasing_chunks", decreasing_chunks)
+
+ if len(increasing_chunks) > 1:
+ isIncreasing_increasing_chunks = [True]*len(increasing_chunks[0])
+ isDecreasing_increasing_chunks = [True]*len(increasing_chunks[0])
+ for i in range(len(increasing_chunks)-1):
+ for j in range(len(increasing_chunks[i])):
+ if increasing_chunks[i][j] < increasing_chunks[i+1][j]:
+ isDecreasing_increasing_chunks[j] = False
+ if not isIncreasing_increasing_chunks[j]:
+ break
+ if increasing_chunks[i][j] > increasing_chunks[i+1][j]:
+ isIncreasing_increasing_chunks[j] = False
+ if not isDecreasing_increasing_chunks[j]:
+ break
+ else:
+ isIncreasing_increasing_chunks = []
+ isDecreasing_increasing_chunks = []
+
+ if len(decreasing_chunks) > 1:
+ isIncreasing_decreasing_chunks = [True]*len(decreasing_chunks[0])
+ isDecreasing_decreasing_chunks = [True]*len(decreasing_chunks[0])
+ for i in range(len(decreasing_chunks)-1):
+ for j in range(len(decreasing_chunks[i])):
+ if decreasing_chunks[i][j] < decreasing_chunks[i+1][j]:
+ isDecreasing_decreasing_chunks[j] = False
+ if not isIncreasing_decreasing_chunks[j]:
+ break
+ if decreasing_chunks[i][j] > decreasing_chunks[i+1][j]:
+ isIncreasing_decreasing_chunks[j] = False
+ if not isDecreasing_decreasing_chunks[j]:
+ break
+ else:
+ isIncreasing_decreasing_chunks = []
+ isDecreasing_decreasing_chunks = []
+
+ largest_chunk_size = max(len(isIncreasing_increasing_chunks), len(isDecreasing_increasing_chunks), len(isIncreasing_decreasing_chunks), len(isDecreasing_decreasing_chunks))
+ if len(isIncreasing_increasing_chunks) < largest_chunk_size:
+ isIncreasing_increasing_chunks.extend([False]*(largest_chunk_size - len(isIncreasing_increasing_chunks)))
+ if len(isDecreasing_increasing_chunks) < largest_chunk_size:
+ isDecreasing_increasing_chunks.extend([False]*(largest_chunk_size - len(isDecreasing_increasing_chunks)))
+ if len(isIncreasing_decreasing_chunks) < largest_chunk_size:
+ isIncreasing_decreasing_chunks.extend([False]*(largest_chunk_size - len(isIncreasing_decreasing_chunks)))
+ if len(isDecreasing_decreasing_chunks) < largest_chunk_size:
+ isDecreasing_decreasing_chunks.extend([False]*(largest_chunk_size - len(isDecreasing_decreasing_chunks)))
+
+ # print("isIncreasing_increasing_chunks", isIncreasing_increasing_chunks)
+ # print("isDecreasing_increasing_chunks", isDecreasing_increasing_chunks)
+ # print("isIncreasing_decreasing_chunks", isIncreasing_decreasing_chunks)
+ # print("isDecreasing_decreasing_chunks", isDecreasing_decreasing_chunks)
+
+ if len(isIncreasing_increasing_chunks) >= 1: 
+ resp = isIncreasing_decreasing_chunks[0] or isDecreasing_decreasing_chunks[0] or isIncreasing_increasing_chunks[0] or isDecreasing_increasing_chunks[0] 
+ for i,j,k,l in zip(isIncreasing_increasing_chunks, isDecreasing_increasing_chunks, isIncreasing_decreasing_chunks, isDecreasing_decreasing_chunks):
+ resp = resp and (i or j or k or l)
+ if resp:
+ return True
+
+ return False
+
+if __name__ == "__main__":
+
+ samp = r"""
+ "A.1 , A.2 , A.3 , A.4, B.1 , B.2, B.3, C.1"
+ """
+ print(incrementing_sequences_filter(samp))