Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V最新文献

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Specification of Row Pattern Recognition in the SQL Standard and its Implementations SQL标准中行模式识别的规范及其实现
D. Petković
{"title":"Specification of Row Pattern Recognition in the SQL Standard and its Implementations","authors":"D. Petković","doi":"10.1007/s13222-022-00404-3","DOIUrl":"https://doi.org/10.1007/s13222-022-00404-3","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"42 1","pages":"163 - 174"},"PeriodicalIF":0.0,"publicationDate":"2022-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85982165","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
Nachruf auf Prof. Dr. Albrecht Blaser, Hirschhorn 我是波席尔教授
P. Dadam, Klaus Küspert, H. Schek
{"title":"Nachruf auf Prof. Dr. Albrecht Blaser, Hirschhorn","authors":"P. Dadam, Klaus Küspert, H. Schek","doi":"10.1007/s13222-022-00407-0","DOIUrl":"https://doi.org/10.1007/s13222-022-00407-0","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"46 1","pages":"93 - 94"},"PeriodicalIF":0.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76920056","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
BTW2021 erstmals als digitale Vortragsreihe 2021年首个数字演讲系列
Wolfgang Lehner, Kai-Uwe Sattler, J. Freytag
{"title":"BTW2021 erstmals als digitale Vortragsreihe","authors":"Wolfgang Lehner, Kai-Uwe Sattler, J. Freytag","doi":"10.1007/s13222-021-00402-x","DOIUrl":"https://doi.org/10.1007/s13222-021-00402-x","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"75 1","pages":"67 - 71"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77365115","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: 1
Reviving the Workshop Series on Testing Database Systems - DBTest. 恢复数据库系统测试系列研讨会- DBTest。
Carsten Binnig, Alexander Böhm, Tilmann Rabl, Pınar Tözün
{"title":"Reviving the Workshop Series on Testing Database Systems - DBTest.","authors":"Carsten Binnig,&nbsp;Alexander Böhm,&nbsp;Tilmann Rabl,&nbsp;Pınar Tözün","doi":"10.1007/s13222-022-00430-1","DOIUrl":"https://doi.org/10.1007/s13222-022-00430-1","url":null,"abstract":"<p><p>With the ever increasing complexity of database systems and their pervasive use in industry, testing them has been an important issue for a long time. Recognizing this relevance, researchers and industry have started the Workshop Series on Testing Database Systems in 2008 collocated with ACM SIGMOD. Six instances of the workshop were successfully run until 2013. Five years later, in 2018, we revived the workshop in a new, biannual format. Today, the DBTest workshop consistently has high-quality submissions, expert presenters, and active participants across both academia and industry. Going forward, we plan to open the workshop up to an even more diverse audience, especially the research communities that focus on software testing and debugging in general, and not only on database systems.</p>","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"22 3","pages":"257-260"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9713739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9259691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metrics and Algorithms for Locally Fair and Accurate Classifications using Ensembles. 使用集成的局部公平和准确分类的度量和算法。
Nico Lässig, Sarah Oppold, Melanie Herschel
{"title":"Metrics and Algorithms for Locally Fair and Accurate Classifications using Ensembles.","authors":"Nico Lässig,&nbsp;Sarah Oppold,&nbsp;Melanie Herschel","doi":"10.1007/s13222-021-00401-y","DOIUrl":"https://doi.org/10.1007/s13222-021-00401-y","url":null,"abstract":"<p><p>To obtain accurate predictions of classifiers, model ensembles comprising multiple trained machine learning models are nowadays used. In particular, <i>dynamic model ensembles</i> pick the most accurate model for each query object, by applying the model that performed best on similar data. Dynamic model ensembles may however suffer, similarly to single machine learning models, from bias, which can eventually lead to unfair treatment of certain groups of a general population. To mitigate unfair classification, recent work has thus proposed <i>fair model ensembles</i>, that instead of focusing (solely) on accuracy also optimize <i>global fairness</i>. While such global fairness globally minimizes bias, imbalances may persist in different regions of the data, e.g., caused by some local bias maxima leading to <i>local unfairness</i>. Therefore, we extend our previous work by including a framework that bridges the gap between dynamic model ensembles and fair model ensembles. More precisely, we investigate the problem of devising locally fair and accurate dynamic model ensembles, which ultimately optimize for equal opportunity of similar subjects. We propose a general framework to perform this task and present several algorithms implementing the framework components. In this paper we also present a runtime-efficient framework adaptation that keeps the quality of the results on a similar level. Furthermore, new fairness metrics are presented as well as detailed informations about necessary data preparations. Our evaluation of the framework implementations and metrics shows that our approach outperforms the state-of-the art for different types and degrees of bias present in training data in terms of both local and global fairness, while reaching comparable accuracy.</p>","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"22 1","pages":"23-43"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8762451/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39851213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Four Generations in Data Engineering for Data Science 面向数据科学的四代数据工程
Meike Klettke, U. Störl
{"title":"Four Generations in Data Engineering for Data Science","authors":"Meike Klettke, U. Störl","doi":"10.1007/s13222-021-00399-3","DOIUrl":"https://doi.org/10.1007/s13222-021-00399-3","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"66 1","pages":"59 - 66"},"PeriodicalIF":0.0,"publicationDate":"2021-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84762486","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: 5
Data Science Meets High-Tech Manufacturing – The BTW 2021 Data Science Challenge 数据科学与高科技制造——BTW 2021数据科学挑战赛
Lucas Woltmann, P. Volk, Michael Dinzinger, Lukas Gräf, S. Strasser, Johannes Schildgen, Claudio Hartmann, Wolfgang Lehner
{"title":"Data Science Meets High-Tech Manufacturing – The BTW 2021 Data Science Challenge","authors":"Lucas Woltmann, P. Volk, Michael Dinzinger, Lukas Gräf, S. Strasser, Johannes Schildgen, Claudio Hartmann, Wolfgang Lehner","doi":"10.1007/s13222-021-00398-4","DOIUrl":"https://doi.org/10.1007/s13222-021-00398-4","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"28 1","pages":"5 - 10"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83306129","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: 1
Continuous Training and Deployment of Deep Learning Models 深度学习模型的持续训练和部署
Ioannis Prapas, Behrouz Derakhshan, Alireza Rezaei Mahdiraji, V. Markl
{"title":"Continuous Training and Deployment of Deep Learning Models","authors":"Ioannis Prapas, Behrouz Derakhshan, Alireza Rezaei Mahdiraji, V. Markl","doi":"10.1007/s13222-021-00386-8","DOIUrl":"https://doi.org/10.1007/s13222-021-00386-8","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"9 1","pages":"203 - 212"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77765420","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: 16
„Data Engineering“ in der Hochschullehre
Ralf Schenkel, Stefanie Scherzinger, M. Tropmann-Frick
{"title":"„Data Engineering“ in der Hochschullehre","authors":"Ralf Schenkel, Stefanie Scherzinger, M. Tropmann-Frick","doi":"10.1007/s13222-021-00395-7","DOIUrl":"https://doi.org/10.1007/s13222-021-00395-7","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"56 1","pages":"251 - 253"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80423155","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
Dissertationen
{"title":"Dissertationen","authors":"","doi":"10.1007/s13222-021-00396-6","DOIUrl":"https://doi.org/10.1007/s13222-021-00396-6","url":null,"abstract":"","PeriodicalId":72771,"journal":{"name":"Datenbank-Spektrum : Zeitschrift fur Datenbanktechnologie : Organ der Fachgruppe Datenbanken der Gesellschaft fur Informatik e.V","volume":"83 1","pages":"261 - 264"},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81084335","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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