❗ ParsedSampleRow -- to common, considering cols_providers (Base, Network) as an extra parameter for value parsing.

[nicolay-r]

Proceeds #275 for better BRAT adaptation
Idea: columns provider describes how the values should be formatted. The latter might be an additional parameter that goes alongside with the __init__ method.

In common we may move ParsedSampleRow class with __init__(columns_fmt) structure, passed as a parameters but remained to be placed in contrib part. The code below is a custom version for the schema of source->target relation extraction task.

AREkit/arekit/contrib/networks/core/input/rows_parser.py

Lines 18 to 55 in 3a6acda

	parse_value = {
	const.ID: lambda value: value,
	const.S_IND: lambda value: int(value),
	const.T_IND: lambda value: int(value),
	network_input_const.FrameVariantIndices: lambda value:
	__process_indices_list(value) if isinstance(value, str) else empty_list,
	network_input_const.FrameConnotations: lambda value:
	__process_indices_list(value) if isinstance(value, str) else empty_list,
	network_input_const.SynonymObject: lambda value: __process_indices_list(value),
	network_input_const.SynonymSubject: lambda value: __process_indices_list(value),
	network_input_const.Entities: lambda value: __process_indices_list(value),
	network_input_const.PosTags: lambda value: __process_int_values_list(value),
	"text_a": lambda value: filter_whitespaces([term for term in split_by_whitespaces(value)])
	}
	class ParsedSampleRow(object):
	"""
	Provides a parsed information for a sample row.
	TODO. Use this class as API
	"""
	def __init__(self, row):
	assert(isinstance(row, pd.Series))
	self.__uint_label = None
	self.__params = {}
	for key, value in row.items():
	if key == const.LABEL:
	self.__uint_label = int(value)
	continue
	if key not in parse_value:
	continue
	self.__params[key] = parse_value[key](value)