Work Experience

  • Present 2015

    Senior Researcher

    Institute for Web Science and Technologies, University of Koblenz, Germany

  • 2015 2012

    Doctoral Researcher

    Media Informatics and Multimedia Systems Group, University of Oldenburg, Germany

  • 2012 2010

    Research Associate

    Interactive Systems Group, OFFIS - Institute for Information Technology, Germany

  • 2010 2009

    Research Intern

    Search Sciences Group, Yahoo! Labs Bangalore, India

  • 2009 2006

    Research Assistant

    Language Technologies Research Centre, IIIT Hyderabad, India


  • Ph.D. 2016

    Ph.D. in Computer Science

    University of Oldenburg, Germany

  • M.S.2009

    Master of Science by Research (Informatics)

    IIIT Hyderabad, India

  • B.E.2006

    Bachelor of Engineering (Computer Science)

    Bhilai Institute of Technology, Durg, India

Awards and Fellowships

  • 2017
    Winners of Web Accessibility Challenge at Web For All 2017, Australia
    Our system "GazeTheWeb: A Gaze Controlled Web Browser" received the Web For All 2017 (w4a2017) “Web Accessibility Challenge” award in Perth, Australia. The 11th TPG Web Accessibility Challenge is a worldwide competition to showcase advanced Web and Mobile technologies to technical leaders from academia and industry. The goal of the Challenge is to acknowledge the development of innovative and usable technologies to make Web accessible to all people. The Challenge featured several experimental systems and technologies that were compared and evaluated by a panel of accessibility experts and delegates to identify the most significant advances in accessibility research in the year 2017. GazeTheWeb received a highly positive response for its usability and impact in the field of Web accessibility, and was adjudged as the winner of the 11th TPG Web Accessibility Challenge 2017.
  • 2017
    Honorable Mention at WWW 2017, Australia
    At the 26th International World Wide Web Conference, we presented our methodology of unsupervised web extraction and extendable framework to include explicit interaction events in web pages. we demonstrated the Chromium based inclusive framework to adapt eye gaze events in Web interfaces, which includes the Web extraction methodology to identify the input and selectable objects, and a gaze enhanced design to interact with the objects. The novel idea was very much appreciated by the World Wide Web community and our paper ‘Chromium based Framework to Include Gaze Interaction in Web Browser’ received the honourable mention award competing with several other state of the art researches in international Web community.
  • 2017
    Best Paper at CBMS 2017, Greece
    Our paper on "Analyzing the Impact of Cognitive Load in Evaluating Gaze-based Typing" by Korok Sengupta, Jun Sun, Raphael Menges, Chandan Kumar and Steffen Staab has received best STUDENT paper award at Computer Based Medical systems conference 2017.
  • 2016
    Doktor der Naturwissenschaften, Oldenburg, Germany
    I successfully defended the dissertation on "Regional Search and Visualization Methodologies for Multi-Criteria Geographic Retrieval" and awarded Dr. rer. nat. degree with "magna cum laude - very good" distinction.
  • 2013
    Best Paper Honorable Mention at i-KNOW 2013, Austria
    I received the award at the 13th ACM International Conference on Knowledge Management and Knowledge Computing (i-KNOW 2013), Graz, Austria. Our paper entitled "A Visual Interactive System for Spatial Querying and Ranking of Geographic Regions“ demonstrated a prototype which helps users for search and exploration of relevant geographical regions. Different regions on a surface maps can be specified, analyzed, and compared to assist end users in relocation or touristic scenarios. The application was highly appreciated by the conference attendees for the real world relevance, and was judged as the most likely to be turned over into business case by the three experienced business angels.
  • 2009
    Indian Young Researcher Award - Italian Fellowship
    I was selected for Indian young researchers fellowship, in collaboration with Govt of Italy and Birla Science Centre Hyderabad.
  • 2007
    Kalpana Chawla Fellowship for Higher Education, India
    I was awarded Kalpana Chawla Scholarship for higher education from Govt of Chhattisgarh, India.
  • 2006
    IIIT Hyderabad Full Fellowship, India
    I was selected for the full research fellowship program for MS specialization at IIIT Hyderabad; hence the tuition fee and all study expenses were covered by the institute.
  • 2002
    State Meritorious Student Award, Chhattisgarh, India
    I secured 5th rank in the top students list of Chhattisgarh state for the higher secondary school examination, and was later awarded by the chief minister.

Research Projects

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    GazeTheWeb: Eye-Controlled Web Browser

    The product won the 11th Web Accessibility Challenge 2017 As The Future of Accessible Work

    GazeTheWeb integrates the visual appearance and control functionality of webpages in an eye tracking environment. It combines both, webpage element extraction and emulation of traditional input devices within the browser in order to provide smooth and reliable Web access. GazeTheWeb not only supports the efficient interaction with the webpage (scrolling, link navigation, text input), it effectively supports all essential browsing menu operations like bookmarks, history, and tab management.

    The detailed description of this project could be found at the official project page or through my recent publications.

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    MAMEM: Multimedia Authoring and Management using your Eyes and Mind

    Project funded by the H2020 European Union

    MAMEM is a platform designed to aid people with physical disabilities to use digital devices, in order to create optimal conditions for digitally and socially inclusive activities that promote their quality of life. Thus, MAMEM has sought to reshape radically the human- computer interaction with the purpose of offering a technology that will enable individuals with disabilities to fully use software applications so as to perform multimedia-related tasks using their eyes and mind.

    The detailed description of this project could be found at the official project page or through my recent publications.

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    UrbanExplorer - Interactive Exploration of Geo-Located Infrastructure and Facilities

    Project funded by the DFG (Geman National Science Foundation)

    In this project I investigated methods for retrieving geo-spatially related information of various types and from different sources, integrating these into novel visualizations that are easy to interpret. We developed interactive interfaces which go beyond map-based points and provide intuitive visualization for relevant aspects of the geo-spatial availability of services and infrastructure such as spreading and distribution, sparseness and density, reachability and connectivity.

    The detailed description of this project could be found in the University project page

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    GazeTheKey: Interactive Keys to Enhance Gaze-based Typing Experience

    The keyboard was demonstrated at IUI Intelligent User Interfaces conference in Cyprus 2017

    We have developed "GazeTheKey” interface for eye typing, where keys not only signifies the input letter, but also predict the relevant words that could be selected by user’s gaze utilizing a two-step dwell time. The proposed design brings the relevant suggestions in the visual attention of users, minimizing the additional cost of scanning an external word suggestion list. Furthermore, it offers the possibility to include much more suggestions than the conventional interfaces having few suggestions at the top of keyboard layout.

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    C3World - Connected Cars in a Connected World

    Project work in collaboration with Volkswagen research, Germany

    The project goal was to present useful spatial information from Web to car passengers with respect to the context and driving situation. To realise such an information system, I contributed in the development of specialised geographical search engine with the enhancements of retrieval methods for geospatial data collection through focused web crawling, address extraction and indexing.

    The detailed description of this project could be found in the OFFIS project page

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    High Precision Attribute Extraction from Web Pages

    Project work at Yahoo! Labs Bangalore.

    I worked on the problem of attribute extraction from template-generated web pages. I contributed in building a high-performance extraction system using machine learning techniques to perform the extraction on real-life web pages, specifically in product and business domain. Another aspect of focus is on the problem of robust Wrapper generation to accommodate seasonal changes in web page structure and produce precise extractions across time.

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    Personalized Information Access for Mobile Devices

    Research work in collaboration with Nokia Research Centre, Helsinki.

    In this work my aim was to provide ”more information with less overload” for faster and easier way to access precise information to the end user. This project is especially targeted for the small device users, where accessing information through documents becomes really difficult due to the limitations like small display, tiny keypad and low bandwidth. I used techniques like clustering, summarization and personalization to produce final result as a summary text in response to user query.

PhD Thesis


The objective of my PhD research was to investigate and develop sophisticated visual interfaces and ranking methods to enable end-users in discovering knowledge hidden in multi-dimensional geospatial databases. The proposed interaction procedure goes beyond the conventional list based local search interfaces and proposes to access the geospatial data sources with regional overview. Users can compare the characterization of urban areas with respect to multiple spatial dimensions of interest and can search for the most suitable region. The search experience is further enhanced via efficient regional ranking algorithms and optimization methods to accomplish the complex search task in computationally effective manner.

Advisor: Prof. Susanne Boll

Master Thesis


The thesis is focused on proposing theoretical framework for document summarization; I formalize document summarization as a decision making problem, and derive a general extraction mechanism for picking sentences based on expected risk of information loss. Through this formulation I come up with a lightweight function to generate more informative summary than the earlier approaches which use complex algorithm for summary generation.

Advisor: Prof. Vasudeva Varma

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Enhanced Representation of Web Pages for Gaze-based Attention Analysis

Raphael Menges, Hanadi Tamimi, Chandan Kumar, Tina Walber, Christoph Schaefer, Steffen Staab
In Proceedings of the Ninth Biennial ACM Symposium on Eye Tracking Research and Applications (ETRA ’18), To Appear


Eye tracking as a tool to quantify user attention plays a major role in research and application design. For Web usability, it has become a prominent measure to assess which sections of a Web page are read, glanced or skipped. Such assessments primarily depend on the mapping of gaze data to a page representation. However, current representation methods, a virtual screenshot of the Web page or a video recording of the complete interaction session, suffer either from accuracy or scalability issues. We present a method that identifies fixed elements on Web pages and combines user viewport screenshots in relation to fixed elements for an enhanced representation of the page, in alignment with the user experience. We conducted an experiment with 10 participants and the results signify that analysis with our method is more efficient than a video recording, which is an essential criterion for large scale Web studies.

Chromium based Framework to Include Gaze Interaction in Web Browser

Chandan Kumar, Raphael Menges, Daniel Mueller, Steffen Staab
International World Wide Web Conference (WWW 17), Perth, Australia, Honorable Mention


Enabling Web interaction by non-conventional input sources like eyes has great potential to enhance Web accessibility. In this paper, we present a Chromium based inclusive framework to adapt eye gaze events in Web interfaces. The framework provides more utility and control to develop a full-featured interactive browser, compared to the related approaches of gaze-based mouse and keyboard emulation or browser extensions. We demonstrate the framework through a sophisticated gaze driven Web browser, which effectively supports all browsing operations like search, navigation, bookmarks, and tab management.

GazeTheWeb: A Gaze-Controlled Web Browser

Raphael Menges, Chandan Kumar, Daniel Mueller, Korok Sengupta
Web For All, The future of accessible work (W4A 17), Perth, Australia, TPG Challange Winner


Web is essential for most people, and its accessibility should not be limited to conventional input sources like mouse and keyboard. In recent years, eye tracking systems have greatly improved, beginning to play an important role as input medium. In this work, we present GazeTheWeb, a Web browser accessible solely by eye gaze input. It effectively supports all browsing operations like search, navigation and bookmarks. GazeTheWeb is based on a Chromium powered framework, comprising Web extraction to classify interactive elements, and application of gaze interaction paradigms to represent these elements.

Analyzing the Impact of Cognitive Load in Evaluating Gaze-based Typing

Korok Sengupta, Jun Sun, Raphael Menges, Chandan Kumar, Steffen Staab
30th IEEE International Symposium on Computer-Based Medical Systems, Greece, Best Student Paper


Gaze-based virtual keyboards provide an effective interface for text entry by eye movements. The efficiency and usability of these keyboards have traditionally been evaluated with conventional text entry performance measures such as words per minute, keystrokes per character, backspace usage, etc. However, in comparison to the traditional text entry approaches, gaze-based typing involves natural eye movements that are highly correlated with human brain cognition. Employ- ing eye gaze as an input could lead to excessive mental demand, and in this work we argue the need to include cognitive load as an eye typing evaluation measure. We evaluate three variations of gaze-based virtual keyboards, which implement variable designs in terms of word suggestion positioning. The conventional text entry metrics indicate no significant difference in the performance of the different keyboard designs. However, STFT (Short-time Fourier Transform) based analysis of EEG signals indicate variances in the mental workload of participants while interacting with these designs. Moreover, the EEG analysis provides insights into the user’s cognition variation for different typing phases and intervals, which should be considered in order to improve eye typing usability.

GazeTheKey: Interactive Keys to Enhance Gaze-based Typing Experience

Korok Sengupta, Raphael Menges, Chandan Kumar, Steffen Staab
Intelligent User Interfaces (IUI 17), Limassol, Cyprus


In the conventional keyboard interfaces for eye typing, the functionalities of the virtual keys are static, i.e., user’s gaze at a particular key simply translates the associated letter as user’s input. In this work we argue the keys to be more dynamic and embed intelligent predictions to support gaze-based text entry. In this regard, we demonstrate a novel "GazeTheKey" interface where a key not only signifies the input character, but also predict the relevant words that could be selected by user's gaze utilizing a two-step dwell time.

Assessing the Usability of a Gaze-Adapted Inter- face with Conventional Eye-based Emulation

Chandan Kumar, Raphael Menges, Steffen Staab
MultiModal Interfaces for Natural Human Computer Interaction - IEEE CBMS 2017.


In recent years, eye tracking systems have greatly improved, beginning to play a promising role as an input medium. Eye trackers can be used for application control either by simply emulating the mouse and keyboard devices in the traditional graphical user interface, or by customized interfaces for eye gaze events. In this work, we evaluate these two approaches to assess their impact in usability. We present a gaze-adapted Twitter application interface with direct interaction of eye gaze input, and compare it to Twitter in a conventional browser interface with gaze-based mouse and keyboard emulation. We conducted an experimental study, which indicates a significantly better subjective user experience for the gaze-adapted approach. Based on the results, we argue the need of user interfaces interacting directly to eye gaze input to provide an improved user experience, more specifically in the field of accessibility.

Schau genau! A Gaze-Controlled 3D Game for Entertainment and Education

Raphael Menges, Chandan Kumar, Ulrich Wechselberger, Christoph Schaefer, Tina Walber, Steffen Staab
The European Conference on Eye Movements (ECEM 2017)


Eye tracking devices have become affordable. However, they are still not very much pre- sent in everyday lives. To explore the feasibility of modern low-cost hardware in terms of reliability and usability for broad user groups, we present a gaze-controlled game in a standalone arcade box with a single physical buzzer for activation. The player controls an avatar in appearance of a butterfly, which flies over a meadow towards the horizon. Goal of the game is to collect spawning flowers by hitting them with the avatar, which increases the score. Three mappings of gaze on screen to world position of the avatar, featuring different levels of intelligence, have been defined and were randomly assigned to players. Both a survey after a session and the high score distribution are considered for evaluation of these control styles. An additional serious part of the game educates the players in flower species, who are rewarded with a point-multiplier for prior knowledge. During this part, gaze data on images is collected, which can be used for saliency calculations. Nearly 3000 completed game sessions were recorded on a state horticulture show in Germany, which demonstrates the impact and acceptability of this novel input technique among lay users.

Usability Heuristics for Eye-controlled User Interfaces

Korok Sengupta, Chandan Kumar, Steffen Staab
The 2017 COGAIN Symposium: Communication by Gaze Interaction, Wuppertal, Germany.


Evolution of affordable assistive technologies like eye tracking helps people with motor disabilities to communicate with computers by eye-based interaction. Eye-controlled interface environments need to be specially built for better usability and accessibility of the content and should not be on interface layouts that are conducive to conventional mouse or touch-based interfaces. In this work we argue the need of the domain specific heuristic checklist for eye-controlled interfaces, which conforms to the usability, design principles and less demanding from cognitive load perspective. It focuses on the need to understand the product in use inside the gaze based environment and apply the heuristic guidelines for design and evaluation. We revisit Nielsen’s heuristic guidelines to acclimatize it to eye-tracking environment, and infer a questionnaire for the subjective assessment of eye-controlled user interfaces.

Eye-Controlled Interfaces for Multimedia Interaction

Chandan Kumar, Raphael Menges, Steffen Staab
IEEE Multimedia (Volume: 23, Issue: 4, Oct.-Dec. 2016)


The EU-funded MAMEM project (Multimedia Authoring and Management using your Eyes and Mind) aims to propose a framework for natural interaction with multimedia information for users who lack fine motor skills. As part of this project, the authors have developed a gaze-based control paradigm. Here, they outline the challenges of eye-controlled interaction with multimedia information and present initial project results. Their objective is to investigate how eye-based interaction techniques can be made precise and fast enough to let disabled people easily interact with multimedia information.

eyeGUI: A Novel Framework for Eye-Controlled User Interfaces

Raphael Menges, Chandan Kumar, Korok Sengupta, Steffen Staab
9th Nordic Conference on Human-Computer Interaction (NordiCHI 2016), Gothenburg, Sweden


The user interfaces and input events are typically composed of mouse and keyboard interactions in generic applications. Eye-controlled applications need to revise these interactions to eye gestures, and hence design and optimization of interface elements becomes a substantial feature. In this work, we propose a novel eyeGUI framework, to support the development of such interactive eye-controlled applications with many significant aspects, like rendering, layout, dynamic modification of content, support of graphics and animation.

Visual Overlay on OpenStreetMap Data to Support Spatial Exploration of Urban Environments

Chandan Kumar, Wilko Heuten, Susanne Boll
International Journal of Geo-Information (IJGI-15)


Increasing volumes of spatial data about urban areas are captured and made available via volunteered geographic information (VGI) sources, such as OpenStreetMap (OSM). Hence, new opportunities arise for regional exploration that can lead to improvements in the lives of citizens through spatial decision support. We believe that the VGI data of the urban environment could be used to present a constructive overview of the regional infrastructure with the advent of web technologies. Current location-based services provide general map-based information for the end users with conventional local search functionality, and hence, the presentation of the rich urban information is limited. In this work, we analyze the OSM data to classify the geo entities into consequential categories with facilities, landscape and land use distribution. We employ a visual overlay of heat map and interactive visualizations to present the regional characterization on OSM data classification. In the proposed interface, users are allowed to express a variety of spatial queries to exemplify their geographic interests. They can compare the characterization of urban areas with respect to multiple spatial dimensions of interest and can search for the most suitable region. The search experience is further enhanced via efficient optimization and interaction methods to support the decision making of end users. We report the end user acceptability and efficiency of the proposed system via usability studies and performance analysis comparison.

Characterizing the Swarm Movement on Map for Spatial Visualization

Chandan Kumar , Uwe Guenefeld, Wilko Heuten, Susanne Boll
Proc. of IEEE Transactions on Visualization and Computer Graphics (IEEE VIS-14), Paris, France


Visualization of maps to explore relevant geographic areas is one of the common practices in spatial decision scenarios. However visualizing geographic distribution with multidimensional criteria becomes a nontrivial setup in the conventional point based map space. In this work the swarm intelligence. We exploit the particle swarm optimization (PSO) framework, where particles represent geographic regions that are moving in the map space to find better position with respect to user's criteria. We track the swarm movement on map surface to generate a relevance heatmap, which could effectively support the spatial analysis task of end users.

A Regional Exploration and Recommendation System based on Georeferenced Images

Chandan Kumar, Sebastian Barton, Wilko Heuten, Susanne Boll
Proc. of the 11th International Conference on Mobile Web Information Systems (MobiWIS 2014), Barcelona, Spain

Swarming in the Urban Web Space to Discover the Optimal Region

Chandan Kumar, Uwe Gruenefeld, Wilko Heuten, Susanne Boll
Proc. of IEEE/WIC/ACM International Conference on Web Intelligence (WI-14), Warsaw, Poland

Event Based Characterization and Comparison of Geosocial Environment

Chandan Kumar, Wilko Heuten, Susanne Boll
Temporal, Social and Spatially-aware Information Access (@SIGIR-14), Gold Coast, Australia

A Visual Interactive System for Spatial Querying and Ranking of Geographic Regions

Chandan Kumar, Wilko Heuten, Susanne Boll
Proc. of the 13th ACM International Conference on Knowledge Management and Knowledge Technologies (iKNOW-13), Graz, Austria, Honorable Mention

Criteria of Query-Independent Page Significance in Geospatial Web Search

Chandan Kumar, Susanne Boll
Proc. of ACM Geographic Information Retrieval (GIR-13), Orlando, USA


The ranking problem in geospatial Web search has traditionally been focused towards query dependent relevance, i.e., the combination of textual and geographic similarity of pages with respect to query text and footprint. The query independent relevance which is also known as the popularity or significance of a page is a valuable aspect of generic Web search ranking. But the research progression or the formalization of query independent significance for geospatial Web search has been limited to the basic adaption of general popularity of pages. In this paper, we discuss how several location sensitive properties could alter the significance of geospatial Web pages. We particularly argue the significance of pages with respect to categorical, regional, and granular criterions. We analyze these criterions over a huge geospatial Web graph of different German cities, and perform some small-scale evaluations of our approach. We derive some valuable heuristics on the link structure of geospatial Web that can be used in the ranking formulation, or to cater certain contextual information needs from end-user of a geospatial Web search system.

Geographical Queries Beyond Conventional Bound- aries: Regional Search and Exploration

Chandan Kumar, Wilko Heuten, Susanne Boll
Proc. of ACM Geographic Information Retrieval (GIR-13), Orlando, USA

Assessing End-User Interaction for Multi-Criteria Local Search with Heatmap and Icon based Visualizations

Chandan Kumar, Benjamin Poppinga, Daniel Hauser, Wilko Heuten, Susanne Boll
Proc. of the 1st ACM SIGSPATIAL International Workshop on MapInteraction (MapInteract-13), Orlando, USA

Geovisual interfaces to find suitable urban regions for citizens: A user-centered requirement study

Chandan Kumar, Benjamin Poppinga, Daniel Hauser, Wilko Heuten, Susanne Boll
Proc. Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication, (UbiComp-13), Zurich, Switzerland

Interactive Exploration of Geographic Regions with Web-based Keyword Distributions

Chandan Kumar, Dirk Ahlers, Wilko Heuten, Susanne Boll
Proc. of The 3rd European Workshop on Human- Computer Interaction and Information Retrieval (@SIGIR2013), Dublin, Ireland

Geovisualization for End User Decision Support: Easy and Effective Exploration of Urban Areas

Chandan Kumar, Wilko Heuten, Susanne Boll
Interactive Maps That Help People Think (GeoViz-13) , Hamburg, Germany

Visualization Support for Multi-criteria Decision Making in Geographic Information Retrieval

Chandan Kumar, Wilko Heuten, Susanne Boll
Proc. of Availability, Reliability, and Security in Information Systems and HCI (HCI-KDD 2013), Regensburg, Germany

Visual Analysis of Geo-Social Web for Spatial Decision Support

Chandan Kumar, Wilko Heuten, Susanne Boll
Proc. of Workshop on Interactive Visual Text Analytics (@VisWeek-12), Seattle, USA

Mapping the Web resources of a developing country

Dirk Ahlers, Jose Matute, Isaac Martinez, Chandan Kumar
GI Zeitgeist Young researchers forum on Geographic Information Science 2012(GI Zeitgeist-12), Munster, Germany

LocateThisPage: Drive-by Location-Aware Browsing

Chandan Kumar, Dirk Ahlers, Susanne Boll
GI Zeitgeist Young researchers forum on Geographic Information Science 2012(GI Zeitgeist-12), Munster, Germany

Personalized Relevance in Mobile Geographic Information Retrieval

Chandan Kumar, Susanne Boll
Proc. of 8th International Symposium on Location-Based Services 2011(LBS-11), Vienna, Austria

Relevance and Ranking in Geographic Information Retrieval

Chandan Kumar
Proc. of 4th Symposium on Future Directions in Information Access 2011(FDIA-11), Koblenz, Germany

An Information Loss based Framework for Document Summarization

Chandan Kumar
International Institute of Information Technology 2009, Hyderabad, India

Estimating Risk of Picking a Sentence for Document Summarization

Chandan Kumar, Prasad Pingali, Vasudeva Varma
Proc. of 10th International Conference on Intelligent Text Processing and Computational Linguistics 2009(CICLing-09), Mexico City, Mexico

A Light-Weight Summarizer based on Language Model with Relative Entropy

Chandan Kumar, Prasad Pingali, Vasudeva Varma
Proc. of 24th ACM SIGAPP Symposium on Applied Computing 2009(SAC- 09), Hawaii, USA

Generating Personalized Summaries Using Publicly Available Web Documents

Chandan Kumar, Prasad Pingali, Vasudeva Varma
Proc. of IEEE/WIC/ACM International Conference on Web Intelligence 2008(WI-08), Sydney, Australia
  • Grants

    Our proposal on "Coastal Urban developmenT through the LEnses of Resiliency - CUTLER" was accepted by the Horizon 2020 - Research and Innovation Framework Programme, involving 15 partners across Europe. Project started Jan 2018.

  • Review

    I like to read unpublished work and provide my feedback for improvements. I have been involved as reviewer or subreviewer in various journal and conferences: ETRA 2018, COGAIN 2018, WWW 2018, WebSci 2018, LocWeb 2017, NordiCHI 2016, MapInteract 2015, TJSS 2014, MapInteract 2014, WWW 2014, LocWeb 2014, GIR 2013, IJITDM 2012, MTAP 2012.

  • Teaching

    Currently I give lectures for Web information retrieval, seminars and projects on experimental research and multimodal interfaces at WeST institute 2015-2018, earlier I used to offer Multimedia Retrieval courses and seminars, University of Oldenburg 2013-2014.

  • Training

    I have participated in the Eye tracking winter school 2016, Monte Verita, Switerland; SICSA supported project at Big Data Information Visualisation summer school, St. Andrews, Scotland, 2013; Earlier I took part in the European Summer School in Information Retrieval, Koblenz, Germany, 2011.

Supervised Students

  • Current

    PhD - Raphael Menges

    Gaze-based Drift Correction

  • Current

    PhD - Korok Sengupta

    Multimodal Text Entry

  • Current

    Masters - Min Ke

    Hands-free Web Browsers

  • Current

    Masters - Daniyal Akbari

    Optimizing Gaze-Touch Interaction

  • 2014

    Master Thesis - Uwe Gruenefeld

    A Computational Intelligence Framework for Multidimensional Regional Search

  • 2014

    Bachelor Thesis - Sebastian Barton

    Visual Representation of Similar Touristic Regions Using Georeferenced Images

  • 2013

    Master Thesis - Daniel Hauser

    Geovisual analytics for lay users: A user-centred approach

At My Office

You can find me at my office located at B113, Institute for Web Science and Technologies, 56070, Koblenz, Germany