Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W4244888056', 'doi': 'https://doi.org/10.1002/spe.892', 'title': 'A text pattern‐matching tool based on Parsing Expression Grammars', 'display_name': 'A text pattern‐matching tool based on Parsing Expression Grammars', 'publication_year': 2008, 'publication_date': '2008-07-17', 'ids': {'openalex': 'https://openalex.org/W4244888056', 'doi': 'https://doi.org/10.1002/spe.892'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1002/spe.892', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S122199241', 'display_name': 'Software Practice and Experience', 'issn_l': '0038-0644', 'issn': ['0038-0644', '1097-024X'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': True, 'oa_status': 'green', 'oa_url': 'http://www.inf.puc-rio.br/~roberto/docs/peg.pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5059175907', 'display_name': 'Roberto Ierusalimschy', 'orcid': 'https://orcid.org/0000-0003-2263-4955'}, 'institutions': [{'id': 'https://openalex.org/I2699952', 'display_name': 'Pontifical Catholic University of Rio de Janeiro', 'ror': 'https://ror.org/01dg47b60', 'country_code': 'BR', 'type': 'education', 'lineage': ['https://openalex.org/I2699952']}], 'countries': ['BR'], 'is_corresponding': True, 'raw_author_name': 'Roberto Ierusalimschy', 'raw_affiliation_strings': ['PUC-Rio, Rio de Janeiro, Brazil'], 'affiliations': [{'raw_affiliation_string': 'PUC-Rio, Rio de Janeiro, Brazil', 'institution_ids': ['https://openalex.org/I2699952']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5059175907'], 'corresponding_institution_ids': ['https://openalex.org/I2699952'], 'apc_list': {'value': 4220, 'currency': 'USD', 'value_usd': 4220, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.419, 'has_fulltext': False, 'cited_by_count': 23, 'citation_normalized_percentile': {'value': 0.91788, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 89, 'max': 90}, 'biblio': {'volume': '39', 'issue': '3', 'first_page': '221', 'last_page': '258'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10181', 'display_name': 'Natural Language Processing Techniques', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/1702', 'display_name': 'Artificial Intelligence'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10181', 'display_name': 'Natural Language Processing Techniques', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/1702', 'display_name': 'Artificial Intelligence'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11269', 'display_name': 'Algorithms and Data Compression', 'score': 0.9983, 'subfield': {'id': 'https://openalex.org/subfields/1702', 'display_name': 'Artificial Intelligence'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T12326', 'display_name': 'Network Packet Processing and Optimization', 'score': 0.9945, 'subfield': {'id': 'https://openalex.org/subfields/1708', 'display_name': 'Hardware and Architecture'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/regular-expression', 'display_name': 'Regular expression', 'score': 0.8516952}, {'id': 'https://openalex.org/keywords/top-down-parsing-language', 'display_name': 'Top-down parsing language', 'score': 0.43133295}, {'id': 'https://openalex.org/keywords/expression', 'display_name': 'Expression (computer science)', 'score': 0.41198134}], 'concepts': [{'id': 'https://openalex.org/C121329065', 'wikidata': 'https://www.wikidata.org/wiki/Q185612', 'display_name': 'Regular expression', 'level': 2, 'score': 0.8516952}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.8120806}, {'id': 'https://openalex.org/C186644900', 'wikidata': 'https://www.wikidata.org/wiki/Q194152', 'display_name': 'Parsing', 'level': 2, 'score': 0.6921671}, {'id': 'https://openalex.org/C68859911', 'wikidata': 'https://www.wikidata.org/wiki/Q1503724', 'display_name': 'Pattern matching', 'level': 2, 'score': 0.651824}, {'id': 'https://openalex.org/C199360897', 'wikidata': 'https://www.wikidata.org/wiki/Q9143', 'display_name': 'Programming language', 'level': 1, 'score': 0.50988686}, {'id': 'https://openalex.org/C53893814', 'wikidata': 'https://www.wikidata.org/wiki/Q7378909', 'display_name': 'Rule-based machine translation', 'level': 2, 'score': 0.48715755}, {'id': 'https://openalex.org/C61423126', 'wikidata': 'https://www.wikidata.org/wiki/Q187432', 'display_name': 'Scripting language', 'level': 2, 'score': 0.4857393}, {'id': 'https://openalex.org/C7757238', 'wikidata': 'https://www.wikidata.org/wiki/Q374040', 'display_name': 'String searching algorithm', 'level': 3, 'score': 0.46573228}, {'id': 'https://openalex.org/C154945302', 'wikidata': 'https://www.wikidata.org/wiki/Q11660', 'display_name': 'Artificial intelligence', 'level': 1, 'score': 0.45242962}, {'id': 'https://openalex.org/C166651950', 'wikidata': 'https://www.wikidata.org/wiki/Q7824365', 'display_name': 'Top-down parsing language', 'level': 5, 'score': 0.43133295}, {'id': 'https://openalex.org/C90559484', 'wikidata': 'https://www.wikidata.org/wiki/Q778379', 'display_name': 'Expression (computer science)', 'level': 2, 'score': 0.41198134}, {'id': 'https://openalex.org/C204321447', 'wikidata': 'https://www.wikidata.org/wiki/Q30642', 'display_name': 'Natural language processing', 'level': 1, 'score': 0.37038195}, {'id': 'https://openalex.org/C80444323', 'wikidata': 'https://www.wikidata.org/wiki/Q2878974', 'display_name': 'Theoretical computer science', 'level': 1, 'score': 0.36941195}, {'id': 'https://openalex.org/C42560504', 'wikidata': 'https://www.wikidata.org/wiki/Q15419395', 'display_name': 'Top-down parsing', 'level': 3, 'score': 0.27987903}, {'id': 'https://openalex.org/C60690694', 'wikidata': 'https://www.wikidata.org/wiki/Q894902', 'display_name': 'Bottom-up parsing', 'level': 4, 'score': 0.16392323}], 'mesh': [], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1002/spe.892', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S122199241', 'display_name': 'Software Practice and Experience', 'issn_l': '0038-0644', 'issn': ['0038-0644', '1097-024X'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320595', 'host_organization_name': 'Wiley', 'host_organization_lineage': ['https://openalex.org/P4310320595'], 'host_organization_lineage_names': ['Wiley'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.139.6969', 'pdf_url': 'http://www.inf.puc-rio.br/~roberto/docs/peg.pdf', 'source': {'id': 'https://openalex.org/S4306400349', 'display_name': 'CiteSeer X (The Pennsylvania State University)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I130769515', 'host_organization_name': 'Pennsylvania State University', 'host_organization_lineage': ['https://openalex.org/I130769515'], 'host_organization_lineage_names': ['Pennsylvania State University'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'submittedVersion', 'is_accepted': False, 'is_published': False}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.139.6969', 'pdf_url': 'http://www.inf.puc-rio.br/~roberto/docs/peg.pdf', 'source': {'id': 'https://openalex.org/S4306400349', 'display_name': 'CiteSeer X (The Pennsylvania State University)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I130769515', 'host_organization_name': 'Pennsylvania State University', 'host_organization_lineage': ['https://openalex.org/I130769515'], 'host_organization_lineage_names': ['Pennsylvania State University'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'submittedVersion', 'is_accepted': False, 'is_published': False}, 'sustainable_development_goals': [{'display_name': 'Quality education', 'score': 0.7, 'id': 'https://metadata.un.org/sdg/4'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 7, 'referenced_works': ['https://openalex.org/W1551518726', 'https://openalex.org/W2003241571', 'https://openalex.org/W2013120826', 'https://openalex.org/W2072607050', 'https://openalex.org/W2101547548', 'https://openalex.org/W2166030873', 'https://openalex.org/W2249895122'], 'related_works': ['https://openalex.org/W4246321749', 'https://openalex.org/W3216580934', 'https://openalex.org/W3145288231', 'https://openalex.org/W2504957479', 'https://openalex.org/W2371263218', 'https://openalex.org/W2123199373', 'https://openalex.org/W2092552144', 'https://openalex.org/W1887794835', 'https://openalex.org/W1774017438', 'https://openalex.org/W1492858093'], 'abstract_inverted_index': {'Abstract': [0], 'Current': [1], 'text': [2], 'pattern‐matching': [3, 66, 138, 155, 182], 'tools': [4, 67, 156], 'are': [5, 27], 'based': [6, 140], 'on': [7, 141], 'regular': [8, 12, 36, 43], 'expressions.': [9, 37], 'However,': [10], 'pure': [11], 'expressions': [13, 44], 'have': [14], 'proven': [15], 'too': [16], 'weak': [17], 'a': [18, 55, 75, 107, 126, 137, 187, 192], 'formalism': [19, 73], 'for': [20, 128, 143, 199], 'the': [21, 39, 48, 70, 118, 144, 150, 158, 172], 'task:': [22], 'many': [23], 'interesting': [24], 'patterns': [25], 'either': [26], 'difficult': [28], 'to': [29, 50], 'describe': [30], 'or': [31], 'cannot': [32], 'be': [33], 'described': [34], 'by': [35, 58], 'Moreover,': [38], 'inherent': [40], 'non‐determinism': [41], 'of': [42, 54, 77, 101, 106, 120, 152, 154, 162, 165, 174, 197], 'does': [45], 'not': [46], 'fit': [47], 'need': [49], 'capture': [51], 'specific': [52], 'parts': [53], 'match.': [56], 'Motivated': [57], 'these': [59], 'reasons,': [60], 'most': [61], 'scripting': [62, 146], 'languages': [63], 'nowadays': [64], 'use': [65, 119, 153], 'that': [68, 190], 'extend': [69], 'original': [71], 'regular‐expression': [72], 'with': [74, 157], 'set': [76, 100], 'ad': [78, 94, 175], 'hoc': [79, 95, 176], 'features,': [80], 'such': [81, 103], 'as': [82, 104, 125], 'greedy': [83], 'repetitions,': [84, 86, 88], 'lazy': [85], 'possessive': [87], '‘longest‐match': [89], 'rule,’': [90], 'lookahead,': [91], 'etc.': [92], 'These': [93], 'extensions': [96], 'bring': [97], 'their': [98], 'own': [99], 'problems,': [102], 'lack': [105], 'formal': [108], 'foundation': [109], 'and': [110, 194], 'complex': [111], 'implementations.': [112], 'In': [113], 'this': [114, 132, 166], 'paper,': [115], 'we': [116, 134], 'propose': [117], 'Parsing': [121, 188], 'Expression': [122], 'Grammars': [123], '(PEGs)': [124], 'basis': [127], 'pattern': [129, 200], 'matching.': [130, 201], 'Following': [131], 'proposal,': [133], 'present': [135, 178, 186], 'LPEG,': [136], 'tool': [139], 'PEGs': [142, 198], 'Lua': [145], 'language.': [147], 'LPEG': [148], 'unifies': [149], 'ease': [151], 'full': [159], 'expressive': [160, 167], 'power': [161], 'PEGs.': [163], 'Because': [164], 'power,': [168], 'it': [169], 'can': [170], 'avoid': [171], 'myriad': [173], 'constructions': [177], 'in': [179], 'several': [180], 'current': [181], 'tools.': [183], 'We': [184], 'also': [185], 'Machine': [189], 'allows': [191], 'small': [193], 'efficient': [195], 'implementation': [196], 'Copyright': [202], '©': [203], '2008': [204], 'John': [205], 'Wiley': [206], '&': [207], 'Sons,': [208], 'Ltd.': [209]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W4244888056', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 3}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 4}, {'year': 2016, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 4}, {'year': 2013, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 3}], 'updated_date': '2024-12-16T13:59:49.898648', 'created_date': '2022-05-12'}