[PlanetKR] Reminder: NMR Online Seminar – Next Talk this Wednesday

[Jonas Haldimann]

Hi everyone,

this is a brief reminder for the talk by *Vanina Martinez* in our next 
NMR Online Seminar on *this Wednesday*.

See you there!

Kind regards,
Jonas

Am 02.10.25 um 14:17 schrieb Jonas Haldimann:
>
>
>       NMR Online Seminar
>
>
> -- Summary: 
> ------------------------------------------------------------------
>
> What?    Next talk in the NMR online talk series by Vanina Martinez
> When?    Wednesday, 22. October 2025, 16:00 CEST (UCT+2)
> Where?   Online (Zoom): 
> https://uct-za.zoom.us/j/92600685092?pwd=ErqWWWKrljbjxLi0CNsgEZr4WR7ZHN.1
>
> https://nmrseminar.krportal.org/
> ------------------------------------------------------------------------------
>
> We are happy to announce that the NMR online talk series restarts 
> after the summer break with a talk given by
> *Vanina Martinez* (IIIA-CSIC, Spain)
>    on *Wednesday, 22. October 2025*, 16:00 CEST:
>
> Making Sense of Messy Graphs: Addressing Uncertainty in Data-Graphs
> Graph databases are becoming widely successful as data models that 
> allow for effective representation and processing of complex 
> relationships among various types of data. Data graphs are a 
> particular type of graph database whose representation enables both 
> data to values in the paths and in the nodes to be treated as 
> first-class citizens by the query language. As with any other type of 
> data repository, data graphs may suffer from errors and discrepancies 
> with respect to the real-world data they intend to represent.
> In this talk, I will present part of the work we have been doing 
> exploring the notion of probabilistic unclean data-graphs, to capture 
> the idea that the observed (unclean) data-graph is actually the noisy 
> version of a clean one that correctly models the world, but that we 
> know only partially. As the factors that lead to such a state of 
> affairs may be many, e.g., all different types of clerical errors or 
> unintended transformations of the data, and depend heavily on the 
> application domain, we assume an epistemic probabilistic model that 
> describes the distribution over all possible ways in which the clean 
> (uncertain) data-graph could have been polluted. Based on this model, 
> we define two computational problems: data cleaning and probabilistic 
> query answering, and study their computational complexity and 
> limitations.
>
> The talk will be given via Zoom.
>
> The plan of this series to have a talk roughly once per month. If you 
> are interested in learning the next speakers, please visit the website at
> https://nmrseminar.krportal.org/
>
> We are still looking for speakers for future talks. If there is 
> something you would like to present in this seminar series, please do 
> not hesitate to contact us.
>
> Kind regards,
> Jonas and Giovanni
>
>
>
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