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With the exception of sample queries, EQL searches require that the searcheddata stream or index contains a timestamp field. By default, EQL uses the@timestamp field from the Elastic Common Schema (ECS).
The following search request uses the fields parameter to retrieve values forthe event.type field, all fields starting with process., and the@timestamp field. The request also uses the filter_path query parameter toexclude the _source of each hit.
By default, the EQL search API returns matching hits by timestamp. If two ormore events share the same timestamp, Elasticsearch uses a tiebreaker field value to sortthe events in ascending order. Elasticsearch orders events with notiebreaker value after events with a value.
The EQL search API supports cross-cluster search.However, the local and remote clustersmust use the same Elasticsearch versionif they have versions prior to 7.17.7 (included) or prior to 8.5.1 (included).
SI 615 - This is a special topics seminar focusing on the current state of Ňdigital librariesÓ broadly defined. The seminar is multi-disciplinary in focus and in method, covering the history of the idea, its manifestation as projects and programs in academic, non-profit, and research settings, and the suite of policy issues that influence their development and growth. The concept of the digital library will serve as an intellectual construct within which to explore the related concepts of scholarly communication, digital preservation, cyberinfrastructure, representation, and information technology standards. Given the seminar format, students will be expected to master a diverse literature, to participate actively in the discussion of issues, and to take steps, collectively and individually, to advance our understanding of future directions of digital libraries.
Efforts to make research results open and reproducible are increasingly reflected by journal policies encouraging or mandating authors to provide data availability statements. As a consequence of this, there has been a strong uptake of data availability statements in recent literature. Nevertheless, it is still unclear what proportion of these statements actually contain well-formed links to data, for example via a URL or permanent identifier, and if there is an added value in providing them. We consider 531,889 journal articles published by PLOS and BMC which are part of the PubMed Open Access collection, categorize their data availability statements according to their content and analyze the citation advantage of different statement categories via regression. We find that, following mandated publisher policies, data availability statements have become common by now, yet statements containing a link to a repository are still just a fraction of the total. We also find that articles with these statements, in particular, can have up to 25.36% higher citation impact on average: an encouraging result for all publishers and authors who make the effort of sharing their data. All our data and code are made available in order to reproduce and extend our results.
The earliest were simply a collection of resources, initially just in alphabetical order, then some introducing an internal search capability. Eventually, some began to crawl the web, while others contented themselves with using the indexes of others. 781b155fdc