267 Hits in 6.7 sec

An Improved Retrievability-Based Cluster-Resampling Approach for Pseudo Relevance Feedback

Shariq Bashir
2016 Computers  
Cluster-based pseudo-relevance feedback (PRF) is an effective approach for searching relevant documents for relevance feedback.  ...  the relevance feedback away from relevant documents.  ...  Recently, a deterministic sampling method based on overlapping clusters was proposed (cluster-based PRF) to select better documents for PRF [6, 7] .  ... 
doi:10.3390/computers5040029 fatcat:khcbofc2sbastbwguszancrh4m

Estimation and use of uncertainty in pseudo-relevance feedback

Kevyn Collins-Thompson, Jamie Callan
2007 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '07  
Treating the baseline feedback method as a black box, and the output feedback model as a random variable, we estimate a posterior distribution for the feedback model by resampling a given query's top-retrieved  ...  Existing pseudo-relevance feedback methods typically perform averaging over the top-retrieved documents, but ignore an important statistical dimension: the risk or variance associated with either the individual  ...  Acknowledgements We thank Paul Bennett for valuable discussions related to this work, which was supported by NSF grants #IIS-0534345 and #CNS-0454018, and U.S. Dept. of Education grant #R305G03123.  ... 
doi:10.1145/1277741.1277795 dblp:conf/sigir/Collins-ThompsonC07 fatcat:3grvnr7a3ze7rnzwszwnvpz33i

Combining concepts and language models for information access

Edgar Meij
2011 SIGIR Forum  
This, in turn, allows us to account for the language associated with concepts within the retrieval model in a principled and transparent manner.  ...  The main contribution is a set of models and methods that enable users to retrieve and access information on a conceptual level.  ...  (where the top-ranked documents are used-a method known as blind or pseudo relevance feedback).  ... 
doi:10.1145/1988852.1988873 fatcat:5zppjnfynzhpxblsvkjdftdnua

by chanceenhancing interaction with large data sets through statistical sampling

Alan Dix, Geoff Ellis
2002 Proceedings of the Working Conference on Advanced Visual Interfaces - AVI '02  
We review the explicit uses of randomness and the related deterministic techniques in the visualisation literature. We then discuss how sampling can augment existing systems.  ...  Furthermore, we demonstrate a novel 2D zooming interface Ð the Astral Telescope Visualiser, a visualisation suggested and enabled by sampling.  ...  for each cluster).  ... 
doi:10.1145/1556262.1556289 dblp:conf/avi/DixE02 fatcat:tpdlyqh6jjhixnxl2qdemxzrlq

Federated text retrieval from uncooperative overlapped collections

Milad Shokouhi, Justin Zobel
2007 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '07  
This confirms our hypothesis that, as the overlap grows, there is a more noticeable need for use of overlap-aware methods.  ...  Taking the costs of 25 resampling queries and downloading 100 documents into account, the total cost is equivalent to a CH method using 140 queries.  ... 
doi:10.1145/1277741.1277827 dblp:conf/sigir/ShokouhiZ07 fatcat:pxmnr6eumnh5tk5a7pkvkkyiwm

Artificial Intelligence and Design of Experiments for Assessing Security of Electricity Supply: A Review and Strategic Outlook [article]

Jan Priesmann, Justin Münch, Elias Ridha, Thomas Spiegel, Marius Reich, Mario Adam, Lars Nolting, Aaron Praktiknjo
2021 arXiv   pre-print
For this, we conduct a large-scale quantitative review on selected fields of application and methods and make a synthesis that relates the different disciplines to each other.  ...  Among other findings, we identify metamodeling of complex security of electricity supply models using AI methods and applications of AI-based methods for forecasts of storage dispatch and (non-)availabilities  ...  Acknowledgements This research was funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) within the project KIVi (grant ID:0 3EI1022A).  ... 
arXiv:2112.04889v2 fatcat:zfm7gfnfcraoplytbaixsdx2ia

A Model-Free Time Series Segmentation Approach for Land Cover Change Detection

Ashish Garg, Lydia Manikonda, Shashank Kumar, Vikrant Krishna, Shyam Boriah, Michael S. Steinbach, Durga Toshnival, Vipin Kumar, Christopher Potter, Steven A. Klooster
2011 Conference on Intelligent Data Understanding  
This year's papers feature articles from international participants covering a wide range of topics such as smart grids, system health management, discovering climate phenomenon, text mining, and methods  ...  CIDU is unique in creating a forum for the applications of data mining and machine learning to earth sciences, space sciences, and aerospace and engineering systems.  ...  Steve Maceachern for helpful discussion. The authors also thank three anonymous reviewers for useful comments.  ... 
dblp:conf/cidu/GargMKKBSTKPK11 fatcat:yur5kmzxovbuxczf6lrix43viy

Incremental Bayesian Category Learning From Natural Language

Lea Frermann, Mirella Lapata
2015 Cognitive Science  
Our model learns categories incrementally using particle filters, a sequential Monte Carlo method commonly used for approximate probabilistic inference which sequentially integrates newly observed data  ...  We would like to thank Charles Sutton for his valuable feedback. We acknowledge the support of EPSRC through project grant EP/I037415/1.  ...  can be used to report a single measure of clustering quality.  ... 
doi:10.1111/cogs.12304 pmid:26534863 fatcat:izoggaoqxzf3bp4c4fdwxvk25e

Interpersonal Synchrony: A Survey of Evaluation Methods across Disciplines

Emilie Delaherche, Mohamed Chetouani, Ammar Mahdhaoui, Catherine Saint-Georges, Sylvie Viaux, David Cohen
2012 IEEE Transactions on Affective Computing  
This paper emphasizes the current questions asked by synchrony evaluation and the state-of-the-art related methods. First, we present definitions and functions of synchrony in youth and adulthood.  ...  [101] provides for a methodological description of resampling methods for synchrony assessment.  ...  and provide feedback (for a review see [145] ).  ... 
doi:10.1109/t-affc.2012.12 fatcat:6kz67svxunf6veudjyv6fixxra

Spontaneous synchronization to speech reveals neural mechanisms facilitating language learning

M. Florencia Assaneo, Pablo Ripollés, Joan Orpella, Wy Ming Lin, Ruth de Diego-Balaguer, David Poeppel
2019 Nature Neuroscience  
Finally, the data expose a mechanism that underpins performance on an ecologically relevant word-learning task.  ...  Using both neurophysiological and structural imaging approaches, we show group differences with clear consequences for speech processing and language learning.  ...  Acknowledgments: We thank Jess Rowland and Jean-Remi King for comments and advice. This work was supported by NIH 2R01DC05660 (DP) and FP7 Ideas: European Research Council ERC-StG-313841 (RDB).  ... 
doi:10.1038/s41593-019-0353-z pmid:30833700 pmcid:PMC6435400 fatcat:62wrotx23za7rhk52adezbesxu

Interdisciplinary application of nonlinear time series methods

T Schreiber
1999 Physics reports  
The paper reviews the relevant methods and discusses the implications for deterministic modeling.  ...  This paper reports on the application to field measurements of time series methods developed on the basis of the theory of deterministic chaos.  ...  Hofmeister, Klaus Lehnertz, and Thomas Schu¨rmann for letting me use their time series data in this publication. This work was supported by the SFB 237 of the Deutsche Forschungsgemeinschaft.  ... 
doi:10.1016/s0370-1573(98)00035-0 fatcat:2gxiapllmrgsxpm5qgorrhytwm

Variations on language modeling for information retrieval

Wessel Kraaij
2005 SIGIR Forum  
Variations on Language Modeling for Information Retrieval W. Kraaij -Enschede: Neslia Paniculata. Thesis Enschede -With ref. With summary ISBN 90-75296-09-6  ...  Since pseudo relevance-feedback is known as a very effective query expansion method and one way to use morphological equivalence classes is to use them for query expansion, we will run some experiments  ...  The collection frequency based estimator is much more sensitive to outlier documents. 6.1.3. Adding pseudo relevance-feedback.  ... 
doi:10.1145/1067268.1067291 fatcat:h23lp5aqfvfu5iecwnihfme244

Best Practices for Quantification of Uncertainty and Sampling Quality in Molecular Simulations [Article v1.0]

Alan Grossfield, Paul N. Patrone, Daniel R. Roe, Andrew J. Schultz, Daniel Siderius, Daniel M. Zuckerman
2019 Living journal of computational molecular science  
This article covers key analyses appropriate for trajectory data generated by conventional simulation methods such as molecular dynamics and (single Markov chain) Monte Carlo.  ...  It also provides guidance for analyzing some 'enhanced' sampling approaches. We do not discuss systematic errors arising, e.g., from inaccuracy in the chosen model or force field.  ...  Smith (University of Guelph), and valuable feedback from Harold W. Hatch, Richard A. Messerly, Raymond D. Mountain, and Andrew M. Dienstfrey in their roles as NIST reviewers.  ... 
doi:10.33011/livecoms.1.1.5067 pmid:30533602 pmcid:PMC6286151 fatcat:cnb2fgqobvbw7dgdkae2om55pa

Visual cortex responses reflect temporal structure of continuous quasi-rhythmic sensory stimulation

Christian Keitel, Gregor Thut, Joachim Gross
2017 NeuroImage  
Keywords: Brain oscillation Entrainment Non-invasive brain stimulation (NIBS) Steady-state response (SSR) Frequency tagging Brain-computer interface A B S T R A C T Neural processing of dynamic continuous  ...  Here, we tested how the visual system reflects quasi-rhythmic stimulation with frequencies continuously varying within ranges of classical theta (4-7 Hz), alpha (8-13 Hz) and beta bands (14-20 Hz) using  ...  Acknowledgments This work was supported by a Wellcome Trust grant to GT and JG [#098433, #098434]. Lucy Dewhurst and Jennifer McAllister assisted in data collection.  ... 
doi:10.1016/j.neuroimage.2016.11.043 pmid:27867090 pmcid:PMC5312821 fatcat:tm6w27mdqrdmhirxewrj5j5qge

Neural Correlates of Cognition in Primary Visual versus Neighboring Posterior Cortices during Visual Evidence-Accumulation-based Navigation [article]

Sue Ann Koay, Stephan Y Thiberge, Carlos Brody, David W Tank
2019 bioRxiv   pre-print
This inspired a multiplicative feedback-loop circuit hypothesis that proposes a more intricate role of sensory areas in the accumulation process, and furthermore explains a surprising observation that  ...  through time to inform a navigational decision.  ...  Scott for brainstorming and feedback on the concept of this paper, as well as L. Pinto, C.M. Constantinople, A.G. Bondy, M. Aoi, and B. Deverett for useful and interesting discussions. B.  ... 
doi:10.1101/568766 fatcat:4ireb4dtarf3lde7232suzmdha
« Previous Showing results 1 — 15 out of 267 results