[Dmbu-l] Indexing for Interactive Exploration of Big Data Series, this Friday at 11am in MCS 148

Charalampos Mavroforakis cmav at bu.edu
Thu Apr 24 13:03:53 EDT 2014

Hi again!

If you want to meet with the speaker, let me know. Kostas will be available
after his talk.


- Harry

On Wed, Apr 23, 2014 at 11:04 AM, Charalampos Mavroforakis <cmav at bu.edu>wrote:

> Hello everyone,
> Here's the announcement for this Friday's talk.
> Thanks,
> *Title: *Indexing for Interactive Exploration of Big Data Series
> *Speaker: *Kostas Zoumpatianos, University of Trento
> *When: *Friday, April 25, 2014 at 11am in MCS 148
> *Abstract:* Numerous applications continuously produce big amounts of
> data series, and in several time critical scenarios analysts need to be
> able to query these data as soon as they become available, which is not
> currently possible with the state-of-the-art indexing methods and for very
> large data series collections. In this paper, we present the first adaptive
> indexing mechanism, specifically tailored to solve the problem of indexing
> and querying very large data series collections. The main idea is that
> instead of building the complete index over the complete data set up-front
> and querying only later, we interactively and adaptively build parts of the
> index, only for the parts of the data on which the users pose queries. The
> net effect is that instead of waiting for extended periods of time for the
> index creation, users can immediately start exploring the data series. We
> present a detailed design and evaluation of adaptive data series indexing
> over both synthetic data and real-world workloads. The results show that
> our approach can gracefully handle large data series collections, while
> drastically reducing the data to query de- lay: by the time
> state-of-the-art indexing techniques finish indexing 1 billion data series
> (and before answering even a single query), adaptive data series indexing
> has already answered 300000 queries.
> This is joint work with Prof. Stratos Idreos (Harvard University) and
> Prof. Themis Palpanas (Paris Descartes University).
> *Short Bio:* Kostas Zoumpatianos is a PhD student at the dbTrento lab of
> the University of Trento in Italy, working on management of large
> collections of data series.
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