8 Result(s)
within
Jimmy Lin
Data Mining and Knowledge Discovery
Information Storage and Retrieval
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Chapter and Conference Paper
From MAXSCORE to Block-Max Wand: The Story of How Lucene Significantly Improved Query Evaluation Performance
The latest major release of Lucene (version 8) in March 2019 incorporates block-max indexes and exploits the block-max variant of Wand for query evaluation, which are innovations that originated from academia. Th...
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Chapter and Conference Paper
Which BM25 Do You Mean? A Large-Scale Reproducibility Study of Scoring Variants
When researchers speak of BM25, it is not entirely clear which variant they mean, since many tweaks to Robertson et al.’s original formulation have been proposed. When practitioners speak of BM25, they most li...
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Chapter and Conference Paper
Reproducibility is a Process, Not an Achievement: The Replicability of IR Reproducibility Experiments
This paper espouses a view of reproducibility in the computational sciences as a process and not just a point-in-time “achievement”. As a concrete case study, we revisit the Open-Source IR Reproducibility Challen...
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Article
The role of index compression in score-at-a-time query evaluation
This paper explores the performance of top k document retrieval with score-at-a-time query evaluation on impact-ordered indexes in main memory. To better understand execution efficiency in the context of modern p...
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Article
Document vector representations for feature extraction in multi-stage document ranking
We consider a multi-stage retrieval architecture consisting of a fast, “cheap” candidate generation stage, a feature extraction stage, and a more “expensive” reranking stage using machine-learned models. In th...
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Article
Open AccessModeling actions of PubMed users with n-gram language models
Transaction logs from online search engines are valuable for two reasons: First, they provide insight into human information-seeking behavior. Second, log data can be used to train user models, which can then ...
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Article
Open AccessSyntactic sentence compression in the biomedical domain: facilitating access to related articles
We explore a syntactic approach to sentence compression in the biomedical domain, grounded in the context of result presentation for related article search in the PubMed search engine. By automatically trimmin...
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Article
Methods for automatically evaluating answers to complex questions
Evaluation is a major driving force in advancing the state of the art in language technologies. In particular, methods for automatically assessing the quality of machine output is the preferred method for meas...
