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--- people [2010/07/31 15:20] – Updated stijnm
+++ people [2018/04/12 22:07] (current) – elisag
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 As usual, the professor is not the one doing the real work. Please read on for more details on our research. It has received international recognition by the fact that Wolfgang has won the [[ http://www.aito.org/Dahl-Nygaard/2008.html | Dahl-Nygaard Award]] in 2008.
-=====
-== Elisa Gonzalez Boix==
-[[http://soft.vub.ac.be/~egonzale|Homepage]]
-My research focuses on investigating programming language support to deal with the effects engendered by partial failures in mobile ad hoc networks (MANETs). In MANETs many partial failures are the result of temporary network partitions due to the intermittent connectivity of mobile devices. Some of these failures will be permanent and require application-level failure handling. However, it is impossible to distinguish a permanent from a transient failure. Leasing provides a solution to this problem based on the temporal restriction of resources.
-This research identifies a number of criteria for a leasing model specially designed for MANETs and proposes the //leased object references// model which exhibits such criteria. Leased object references combine leasing with asynchronous communication into one coherent language abstraction that deals with both transient and permanent disconnections. We explore a language approach where dedicated language support is provided such that low-level leasing management concerns (e.g. lease renewal) can be abstracted away, and enables both lease holders (clients) and lease grantors (services) to deal with permanent failures.
-For further information about my work please visit my [[http://soft.vub.ac.be/~egonzale/wiki/doku.php?id=research|research page]].
 =====
-== Andoni Lombide Carreton ==
+== Prof. Dr. Elisa Gonzalez Boix==
-[[http://soft.vub.ac.be/~alombide|Homepage]]
+[[http://soft.vub.ac.be/~egonzale| Homepage]]
-The dynamic nature of ambient oriented applications makes it impossible to structure them as monolithic programs with a fixed input and output. Instead, a distributed event-driven architecture is required. Current event-driven architectures require distributed application components to react to events via a carefully crafted network of observers, event handlers or callback mechanisms which are scattered throughout the application code and can be triggered at any point in time. Such architectures are hard to develop, understand and maintain in all but the most trivial cases.
+My PhD research focused on investigating programming language support to deal with the effects engendered by partial failures in mobile ad hoc networks (MANETs). In MANETs many partial failures are the result of temporary network partitions due to the intermittent connectivity of mobile devices. Some of these failures will be permanent and require application-level failure handling. However, it is impossible to distinguish a permanent from a transient failure. Leasing provides a solution to this problem based on the temporal restriction of resources.
-This poses a problem when we look at the new generation of disposable processing hardware, such as RFID tags. Ubiquitous applications will not only consist of peer-to-peer interactions, but will have to deal with clouds of volatile information disseminated in the network by omnipresent devices such as RFID tags or sensors.
+This research identified a number of criteria for a leasing model specially designed for MANETs and proposes the //leased object references// model which exhibits such criteria. Leased object references combine leasing with asynchronous communication into one coherent language abstraction that deals with both transient and permanent disconnections. We explored a language approach where dedicated language support is provided such that low-level leasing management concerns (e.g. lease renewal) can be abstracted away, and enables both lease holders (clients) and lease grantors (services) to deal with permanent failures.
-I am currently looking into programming abstractions that allow to specify which events to capture by distributed application components in a mobile ad hoc network. Furthermore, I am trying to come up with mechanisms that allow reacting to these events without relying on event handlers or other callback mechanisms. Finally, low level events should be processed (e.g. by combining them) such that they are on the semantic level of the application.
 =====
 == Kevin Pinte ==
@@ Line 45: / Line 37: @@
 =====
-== Dries Harnie ==
-Thanks to the work of the other people on this page, programming applications for mobile devices is now as easy as, say, writing a blog. However, research so far has focused on one-to-one communication and how the properties of MANETs disrupt it.
-In the Real World(tm) we do group communication without giving it a second thought, changing conversation topics as people leave and rejoin the group. Likewise, we effortlessly do service composition: comparing prices for stuff we want to buy or finding interesting activities for a trip. Doing these things with current technology requires a lot of "bookkeeping code" because it can only track the connectivity of one link at a time.
+=== Former Members ===
+== Dr. Jessie Dedecker ==
+[[http://www.dedecker.org|Homepage]]
+My current research topic revolves around collaborative ambient-oriented programming abstractions.  This involves abstractions for expressive coordination of groups of ambient objects.  In this context I am also investigating replication strategies suitable for disconnected operation.
+Apart from my research on AmOP I also have a general interest in dynamic object-oriented programming languages, concurrency and distribution.
-My research intends to provide abstractions that bind a number of services residing on different mobile devices into coherent entities. Programmers can then use these abstractions to communicate with groups of services as easily as with single services.
 =====
+== Dr. Tom Van Cutsem ==
+[[http://soft.vub.ac.be/~tvcutsem|Homepage]]
+Specific to my PhD thesis, my research lied in uncovering novel referencing and communication abstractions for mobile ad hoc networks. More specifically, I am currently investigating [[research:ambientrefs|ambient references]], which are a set of object-oriented service discovery abstractions.
+Within the research track of ambient-oriented programming, I am also particularly interested in the adaptation and application of meta-level architectures and reflection to the AmOP paradigm.
+Apart from AmOP, my general research interests include dynamic object-oriented programming languages (reuse/composition/object models) and reflection. I am especially intrigued by composition techniques such as traits and delegation.
+=====
 == Stijn Mostinckx ==
 In the past, I have contributed to the formulation of the ambient-oriented programming paradigm and have co-designed the current incarnation of AmbientTalk.  Currently, my research focus is the study of elegant mechanisms to allow applications to respond to dynamic changes in their environment.
-A first element of the solution I propose is the use of pattern matching rules to succinctly describe which changes to the environment are relevant.  This has lead to the formulation of the [[crime:factspaces|fact space model]].
+A first element of the solution I propose is the use of pattern matching rules to succinctly describe which changes to the environment are relevant.  Applying such rules over a [[crime:factspaces|federated fact space]] -- which transparently combines the information provided by all reachable devices -- proves to be a declarative means to coordinate and contextualize the behavior of distributed applications.
-The second element is the use of [[research:rp|reactive programming]]: a programming model which allows writing event-driven programs without inversion of control.
+The second element of the proposed solution is the use of [[research:rp|reactive programming]]: a programming model centered on the use of time-varying //reactive values//. Their unique //contagion// semantics allow building event-driven software without any event handlers, thus avoiding the problems engendered by inversion of control.
-Combining these two elements yields the [[research:recap|reactive context-aware programming]] paradigm, an extension of the ambient-oriented programming paradigm which is tailored for the Internet of Things.
+The approach that combines and integrates these elements is the  [[research:recap|reactive context-aware programming]] paradigm, an extension of the ambient-oriented programming paradigm which is tailored for the Internet of Things.
+=====
+== Dr. Jorge Vallejos ==
+[[http://soft.vub.ac.be/~jvallejo|Homepage]]
+The focus of my PhD research is to investigate the context-awareness property in the field of Ambient Intelligence. My particular interest is to explore the ways in which the computational context surrounding mobile applications, may influence their behaviour. For further information about my work please visit the [[research:context|Context-Dependent Behaviour Adaptations]] section of this site.
 =====
-== Eline Philips ==
+== Dr. Andoni Lombide Carreton ==
-Nomadic networks fill the gap between fixed networks and mobile ad hoc networks (MANETs) as they consist of a group of mobile devices that can move around dynamically while trying to maintain a connection with a fixed infrastructure. My research focusses on the coordination of nomadic services by making use of workflows as they provide an additional layer of abstraction such that interactions among application components can be specified on a higher level and be reused because of their loose coupling with the fine-grained application logic. Unfortunately, current workflow systems do not meet all the requirements for the kinds of applications that we envision in nomadic networks, like connection
+[[http://soft.vub.ac.be/~alombide|Homepage]]
-volatility.
-AmbientTalk is a programming language which treats disconnections at the very heart of its computational model. Moreover, the language supports dynamic service discovery which is opportune for nomadic networks. Although this language is suited for writing applications for MANETs, the orchestration of these applications is still programmed in an ad hoc manner. Complex nomadic applications that consist of asynchronously executing distributed services become hard to develop, understand and reuse. I am currently working on the addition of an abstraction layer on top of AmbientTalk which implements
+The dynamic nature of ambient oriented applications makes it impossible to structure them as monolithic programs with a fixed input and output. Instead, a distributed event-driven architecture is required. Current event-driven architectures require distributed application components to react to events via a carefully crafted network of observers, event handlers or callback mechanisms which are scattered throughout the application code and can be triggered at any point in time. Such architectures are hard to develop, understand and maintain in all but the most trivial cases.
-workflow patterns. I am investigating which new patterns for nomadic networks can be added to this abstraction layer. Concretely, I want support for intensional descriptions of services, group communication, compensating actions and more advanced synchronisation.
+This poses a problem when we look at the new generation of disposable processing hardware, such as RFID tags. Ubiquitous applications will not only consist of peer-to-peer interactions, but will have to deal with clouds of volatile information disseminated in the network by omnipresent devices such as RFID tags or sensors.
+In my Phd dissertation, I investigated programming abstractions that allow to specify which events to capture by distributed application components in a mobile ad hoc network. Furthermore, I am trying to come up with mechanisms that allow reacting to these events without relying on event handlers or other callback mechanisms. Finally, low level events should be processed (e.g. by combining them) such that they are on the semantic level of the application.
 =====
-== Christophe Scholliers ==
+== Prof. Dr. Christophe Scholliers ==
-[[http://wilma.vub.ac.be/~cfscholl/|Homepage]]
+[[http://users.ugent.be/~chscholl/#/Home|Homepage]]
 Current-day applications for mobile phones and PDAs are often limited to miniature versions of standard desktop
@@ Line 85: / Line 97: @@
 that are inherent to a pervasive computing environment (e.g. frequent disconnections, dynamic discovery, etc.)
-Last year, I have been involved in the development of  (a concrete implementation of) the Fact Space Model, an
+In the past, I have been involved in the development of  (a concrete implementation of) the Fact Space Model, an
 extension to the tuple space model which provides fine-grained control over the effects of disconnections.
 Using a declarative language, every device can specify how it will adjust its behaviour in response to dynamic changes
-in its environment. Currently, I am working on an extension of this model that allows applications to work on shared and replicated data.
+in its environment. During my PhD, I worked on an extension of this model that allows applications to work on shared and replicated data.  The use of weak data replication in a mobile environment ensures that there is no need to stop an ongoing application when certain data cannot be synchronized.
-The use of weak data replication in a mobile environment ensures that there is no need to stop an ongoing application when certain data cannot be synchronized.
 =====
-== Stijn Timbermont ==
+== Dr. Eline Philips ==
+Nomadic networks fill the gap between fixed networks and mobile ad hoc networks (MANETs) as they consist of a group of mobile devices that can move around dynamically while trying to maintain a connection with a fixed infrastructure. My research focusses on the coordination of nomadic services by making use of workflows as they provide an additional layer of abstraction such that interactions among application components can be specified on a higher level and be reused because of their loose coupling with the fine-grained application logic. Unfortunately, current workflow systems do not meet all the requirements for the kinds of applications that we envision in nomadic networks, like connection
+volatility.
- In an Ambient Intelligent setting, various kinds of hardware are involved, each with its own characteristics. To allow abstraction over the different devices, a standard virtual machine approach is not feasible because it is not possible to abstract over all the devices at the same time. Instead, each device will require an individually adapted virtual machine.
+AmbientTalk is a programming language which treats disconnections at the very heart of its computational model. Moreover, the language supports dynamic service discovery which is opportune for nomadic networks. Although this language is suited for writing applications for MANETs, the orchestration of these applications is still programmed in an ad hoc manner. Complex nomadic applications that consist of asynchronously executing distributed services become hard to develop, understand and reuse. I am currently working on the addition of an abstraction layer on top of AmbientTalk which implements
+workflow patterns. I am investigating which new patterns for nomadic networks can be added to this abstraction layer. Concretely, I want support for intensional descriptions of services, group communication, compensating actions and more advanced synchronisation.
-This reseach proposes a new way to develop virtual machines for Ambient Intelligence. Instead of manually modifying the virtual machine for of a particular device, the virtual machine can be generated by composing reusable modules. The first step is to determine the set of modules that can be used to build a virtual machine. The next step is to find implementation and composition techniques that guarantee the correctness and efficiency of the generated virtual machine.
 =====
-== Jorge Vallejos ==
+== Dr. Lode Hoste ==
-[[http://soft.vub.ac.be/~jvallejo|Homepage]]
+[[http://soft.vub.ac.be/~lhoste|Homepage]]
-The focus of my research is to investigate the context-awareness property in the field of Ambient Intelligence. My particular interest is to explore the ways in which the computational context surrounding mobile applications, may influence their behaviour. For further information about my work please visit the [[research:context|Context-Dependent Behaviour Adaptations]] section of this site.
-=====
+My research focuses on investigating programming language support to deal with the massive amount of concurrent events generated by various input devices. By providing adequate software abstractions for correlating multiple input devices we try to encourage multimodal gestural interaction and ease their implementations.
-== Dr. Tom Van Cutsem ==
-[[http://soft.vub.ac.be/~tvcutsem|Homepage]]
-Specific to my PhD thesis, my research lies in uncovering novel referencing and communication abstractions for mobile ad hoc networks. More specifically, I am currently investigating [[research:ambientrefs|ambient references]], which are a set of object-oriented service discovery abstractions.
+The relation of my research and AmOP is the //spontaneous collaborative manipulation of digital information//. One scenario is that multiple people can interact using their laptop or mobile device with a shared virtual smart-board over a wireless network. Another scenario is the peer-to-peer data exchange where one users 'throws' (gesture 1) data and another users 'catches' (gesture 2) it. This type of interaction is both distributed in the //actions// they perform (correlate the 'throw' and 'catch' from different devices) and in the //data// that is exchanged.
-Within the research track of ambient-oriented programming, I am also particularly interested in the adaptation and application of meta-level architectures and reflection to the AmOP paradigm.
-Apart from AmOP, my general research interests include dynamic object-oriented programming languages (reuse/composition/object models) and reflection. I am especially intrigued by composition techniques such as traits and delegation.
 =====
-=== Former Members ===
+== Dr. Dries Harnie ==
-== Dr. Jessie Dedecker ==
+Thanks to the work of the other people on this page, programming applications for mobile devices is now as easy as, say, writing a blog. However, research so far has focused on one-to-one communication and how the properties of MANETs disrupt it.
-[[http://www.dedecker.org|Homepage]]
-My current research topic revolves around collaborative ambient-oriented programming abstractions.  This involves abstractions for expressive coordination of groups of ambient objects.  In this context I am also investigating replication strategies suitable for disconnected operation.
+In the Real World(tm) we do group communication without giving it a second thought, changing conversation topics as people leave and rejoin the group. Likewise, we effortlessly do service composition: comparing prices for stuff we want to buy or finding interesting activities for a trip. Doing these things with current technology requires a lot of "bookkeeping code" because it can only track the connectivity of one link at a time.
-Apart from my research on AmOP I also have a general interest in dynamic object-oriented programming languages, concurrency and distribution.
+My research intends to provide abstractions that bind a number of services residing on different mobile devices into coherent entities. Programmers can then use these abstractions to communicate with groups of services as easily as with single services.
 =====