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teaching:mfe:is [2016/04/13 16:19]
msakr [A Generic Similarity Measure For Symbolic Trajectories]
teaching:mfe:is [2016/04/15 15:51]
svsummer
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 <​note>​Please note that this list of subjects is **not exhaustive. Interested students are invited to propose original subjects.**</​note> ​ <​note>​Please note that this list of subjects is **not exhaustive. Interested students are invited to propose original subjects.**</​note> ​
 +{{:​teaching:​mfe:​euranova_thesis_2016.pdf|}}
 ===== Master Thesis in Collaboration with Euranova ===== ===== Master Thesis in Collaboration with Euranova =====
  
-Our laboratory performs collaborative research with Euranova R&D (http://​euranova.eu/​). The list of subjects proposed for this year by Euranova can be found  +Our laboratory performs collaborative research with Euranova R&D (http://​euranova.eu/​). The list of subjects proposed for this year by Euranova can be found {{:​teaching:​mfe:​euranova_thesis_2016.pdf|here}} 
-{{:​teaching:​mfe:​master_thesis_euranova_2015.pdf|here}}+
  
 These subject include topics on distributed graph processing, processing big data using Map/Reduce, cloud computing, and social networks. These subject include topics on distributed graph processing, processing big data using Map/Reduce, cloud computing, and social networks.
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 **Interested?​** **Interested?​**
   * Contact : [[stijn.vansummeren@ulb.ac.be|Stijn Vansummeren]]   * Contact : [[stijn.vansummeren@ulb.ac.be|Stijn Vansummeren]]
 +
 +**Status**: available
 +
 +===== Développement d’un système de gestion de l’information pour un réseau de dépistage et de suivi des lésions précancéreuses et cancéreuses du col de l’utérus dans la Région de Cochabamba en Bolivie =====
 +
 +Full description available here:​{{:​teaching:​mfe:​mfe_u_bio-mechatronics_codepo_01.docx|}}
 +
 +**Interested?​**
 +  * Contact :   * Contact : [[stijn.vansummeren@ulb.ac.be|Stijn Vansummeren]]
  
 **Status**: available **Status**: available
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 A symbolic trajectory is a very simple structure composed of a sequence of pairs (time interval, label). So, it is a time dependent label, where every label can tell something about the semantics of the moving object during its associated time interval. We think this model is promising because of its simplicity and genericness. ​   A symbolic trajectory is a very simple structure composed of a sequence of pairs (time interval, label). So, it is a time dependent label, where every label can tell something about the semantics of the moving object during its associated time interval. We think this model is promising because of its simplicity and genericness. ​  
  
-The goal of this thesis is to implement a similarity operator for symbolic trajectories. There are three dimensions of similarity in symbolic trajectories:​ temporal similarity, value similarity, and semantic similarity. Such an operator should be flexible to express arbitrary combinations of them. It should accept a pair of semantic trajectories and return a numerical value that can be used for clustering or ranking objects based on their similarity. Symbolic trajectories are similar to time series, except that labels are annotated by time intervals, rather than time points. We think that the techniques of time series similarity can be adopted for symbolic trajectories. This thesis should assess that, and implement a similarity measure based on time series similarity. The implementation is required to be done as an extension to PostGIS. We have already implemented some temporal types and operations on top of PostGIS, where you can start from.  +The goal of this thesis is to implement a similarity operator for symbolic trajectories. There are three dimensions of similarity in symbolic trajectories:​ temporal similarity, value similarity, and semantic similarity. Such an operator should be flexible to express arbitrary combinations of them. It should accept a pair of semantic trajectories and return a numerical value that can be used for clustering or ranking objects based on their similarity. Symbolic trajectories are similar to time series, except that labels are annotated by time intervals, rather than time points. We think that the techniques of time series similarity can be adopted for symbolic trajectories. This thesis should assess that, and implement a similarity measure based on time series similarity. The implementation is required to be done as an extension to PostGIS. We have already implemented some temporal types and operations on top of PostGIS, where you can start from. 
  
-Here is a list of deliverables that should guide you working on this thesis. It is, however, fine to suggest modifications to this list during ​the work.+  
 +**Deliverables** ​of the master thesis project
   * Reporting on the state of art of semantic trajectory similarity measures.   * Reporting on the state of art of semantic trajectory similarity measures.
   * Reporting on the state of art in time series similarity measures.   * Reporting on the state of art in time series similarity measures.
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 +**Interested?​**
 +  * Contact : [[ezimanyi@ulb.ac.be|Esteban Zimanyi]]
  
-   * Contact : [[ezimanyi@ulb.ac.be|Esteban Zimanyi]]+**Status**: available 
 + 
 +=====Assessing Existing Communication Protocols In The Context Of DaaS =====  
 +Data-as-a-Service (DaaS) is an emerging cloud model. The main offering of DaaS is to allow data producers/​owners to publish data services on the cloud. The idea of publishing data via a service interface is not new. SOA protocols have enabled this long ago. Yet, these protocols were not developed with the cloud and the big data in mind. This is probably why the term DaaS has emerged. It marks the need for protocols and tools that enable big data exchange.  
 + 
 +DaaS services need to exchange large amounts of data. Large here refers to large message size, large message count, or a combination of both. RESTful services, for instance, communicate over HTTP, which is not a good choice for communicating large messages/​files. SOAP services are not bound to HTTP, but they introduce another overhead of requiring messages to be strictly formatted in XML. This is why researchers started to reconsider older protocols like the BitTorrent, and suggesting extension to existing protocols like the SOAP with Attachments.  
 + 
 +The topic of this thesis is to perform a comprehensive survey on the protocols data exchange, and assess their suitability for DaaS. A quantitative comparison of protocols need to be done, considering at least these two dimensions: (1) the protocol: SOAP, REST, BitTorrent, etc, and (2) the message: short inline, long inline, file. The assessment should be in terms of reliability,​ performance,​ and security. 
 + 
 +**Deliverables** of the master thesis project 
 +  * A report that reviews the state of art communication protocols. 
 +  * Propose a tool for DaaS developers to choose the best protocol/s based on their application needs. Such a tool might also provide means of automatically switching between protocols on certain thresholds. 
 +  * Experiments to assess the suitability of protocols for DaaS, and to compare between them. These experiments need to be repeatable, so that others can use them on their own datasets and configurations. ​  
 + 
 +**Interested?​** 
 +  ​* Contact : [[ezimanyi@ulb.ac.be|Esteban Zimanyi]] 
 + 
 +**Status**: available
 
teaching/mfe/is.txt · Last modified: 2020/09/29 17:03 by mahmsakr