{"doi":"10.18653/v1/2020.sdp-1.3","title":"Acknowledgement Entity Recognition in CORD-19 Papers","abstract":"Acknowledgements are ubiquitous in scholarly papers. Existing acknowledgement entity recognition methods assume all named entities are acknowledged. Here, we examine the nuances between acknowledged and named entities by analyzing sentence structure. We develop an acknowledgement extraction system, ACKEXTRACT based on open-source text mining software and evaluate our method using manually labeled data. ACKEXTRACT uses the PDF of a scholarly paper as input and outputs acknowledgement entities. Results show an overall performance of F 1 = 0.92. We built a supplementary database by linking CORD-19 papers with acknowledgement entities extracted by ACKEXTRACT including persons and organizations and find that only up to 50-60% of named entities are actually acknowledged. We further analyze chronological trends of acknowledgement entities in CORD-19 papers.","journal":"ODU Digital Commons (Old Dominion University)","year":2020,"id":121797,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":6,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9626,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":561940,"name":"Pei Wang","orcid":"0000-0002-5043-8460","position":1,"is_corresponding":false},{"id":298480,"name":"Xin Wei","orcid":"0000-0001-9759-7760","position":2,"is_corresponding":false},{"id":561941,"name":"Sarah Rajtmajer","orcid":"0000-0002-1464-0848","position":3,"is_corresponding":false},{"id":58135,"name":"C. Lee Giles","orcid":"0000-0002-1931-585X","position":4,"is_corresponding":false},{"id":561942,"name":"Christopher Griffin","orcid":"0000-0002-9962-9540","position":5,"is_corresponding":false},{"id":561939,"name":"Jian Wu","orcid":"0000-0003-0173-4463","position":0,"is_corresponding":true}],"reference_count":35,"raw_metadata":null,"created_at":"2026-07-18T23:14:46.979435Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}