An Introduction to Artificial Intelligence最新文献

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Agents 代理
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.2307/377596
J. Finlay, A. Dix
{"title":"Agents","authors":"J. Finlay, A. Dix","doi":"10.2307/377596","DOIUrl":"https://doi.org/10.2307/377596","url":null,"abstract":"Sir I read with interest the review by Seyednejad et al. on topical haemostatic agents. The authors have made a tremendous effort to give an overview of all available clotting agents and their advantages and disadvantages. Nevertheless, I would like to point out an error in figure 5 of the review. This figure depicts the relationship between different topical agents and components of the clotting cascade such as the intrinsic and extrinsic pathways. More than 5 years ago, the conceptual thoughts about the functional components of the coagulation pathway changed. In the sixties, the cascade and waterfall hypotheses proposed an intrinsic pathway of coagulation initiated by contact factors. The extrinsic tissue factor pathway was thought to play an ancillary role in activation of coagulation. The segregation of the coagulation system into the intrinsic and extrinsic pathways fails to reflect coagulation accurately. The current view is that coagulation predominantly proceeds by the tissue factor/factor-VIIa pathway. Thrombin is generated after exposure of F VIIa to TF and subsequent activation of factor X into Xa. Both TF/F-VIIa complex and F Xa are inhibited by tissue factor pathway inhibitor. Interaction of the cofactor molecule factor V with factor Xa results in increased thrombin generation. The TF/F-VIIa pathway has several amplification loops, which maintain Xa generation via positive feedback mechanisms involving factors VIII, IX and XI. Thrombin generation is downregulated by antithrombin and activated protein C. Thus, currently a more holistic view is held on activation of coagulation and its amplification and inhibition loops than two pathways that both separately end in thrombin formation. M. A. Boermeester Department of Surgery, Academic Medical Center, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands DOI: 10.1002/bjs.6602 Authors’ reply: Topical haemostatic agents (Br J Surg 2008; 95: 1197–1225)","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122407795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Search 搜索
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.1201/9781003072485-3
J. Finlay, A. Dix
{"title":"Search","authors":"J. Finlay, A. Dix","doi":"10.1201/9781003072485-3","DOIUrl":"https://doi.org/10.1201/9781003072485-3","url":null,"abstract":"Zend_Search_Lucene versus MySQL Advantage can weight fields. Ex: a title over the content can search on fields (ex: only on title). Probably can easily filter on language English tokenization by default Search globally on all the object types and not type by type. Possible problems?? To have the good scoring, all the objects must be fetched (but less than 30secs for lucene to search over 4500 tiki files + 1500 wiki pages (Some possibilites to speed up: http://forums.zend.com/viewtopic.php?f=69&t=741) the index optimization must be run with a batch....","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130140065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Machine learning 机器学习
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.1201/9781003072485-4
J. Finlay, A. Dix
{"title":"Machine learning","authors":"J. Finlay, A. Dix","doi":"10.1201/9781003072485-4","DOIUrl":"https://doi.org/10.1201/9781003072485-4","url":null,"abstract":"","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123481184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Expert systems 专家系统
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.1201/9781003072485-6
J. Finlay, A. Dix
{"title":"Expert systems","authors":"J. Finlay, A. Dix","doi":"10.1201/9781003072485-6","DOIUrl":"https://doi.org/10.1201/9781003072485-6","url":null,"abstract":"","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130875726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computer vision 计算机视觉
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.1201/9781003072485-8
J. Finlay, A. Dix
{"title":"Computer vision","authors":"J. Finlay, A. Dix","doi":"10.1201/9781003072485-8","DOIUrl":"https://doi.org/10.1201/9781003072485-8","url":null,"abstract":"","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122736771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Natural language understanding 自然语言理解
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.1201/9781003072485-7
J. Finlay, A. Dix
{"title":"Natural language understanding","authors":"J. Finlay, A. Dix","doi":"10.1201/9781003072485-7","DOIUrl":"https://doi.org/10.1201/9781003072485-7","url":null,"abstract":"","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"515 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123078868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Models of the mind 思维模型
An Introduction to Artificial Intelligence Pub Date : 2020-10-28 DOI: 10.1201/9781003072485-11
J. Finlay, A. Dix
{"title":"Models of the mind","authors":"J. Finlay, A. Dix","doi":"10.1201/9781003072485-11","DOIUrl":"https://doi.org/10.1201/9781003072485-11","url":null,"abstract":"","PeriodicalId":448389,"journal":{"name":"An Introduction to Artificial Intelligence","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126097486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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