Publications Year Pubtype CSV EndNote BibTeX XML Export 2018 Journal Article Wever, Nander ; Vera Valero, César ; Techel, Frank (2018). Coupled snow cover and avalanche dynamics simulations to evaluate wet snow avalanche activity. Journal of Geophysical Research: Earth Surface:Epub ahead of print. Brunner, Manuela Irene ; Pool, Sandra ; Kiewiet, Leonie ; Acheson, Elise (2018). The other’s perception of a streamflow sample: from a bottle of water to a data point. Hydrological Processes:1-6. Book Section Navidi, Zahra ; Das, Rahul Deb ; Winter, Stephan (2018). Geospatial data science approaches for transport demand modeling. In: Karimi, Hassan A ; Karimi, Bobak . Geospatial data science techniques and applications. Boca Raton: CRC Press, 177-204. 2017 Journal Article Pasquier, Mathieu ; Hugli, Olivier ; Kottmann, Alexandre ; Techel, Frank (2017). Avalanche accidents causing fatalities: are they any different in the summer?. High Altitude Medicine & Biology, 18(1):67-72. Wartmann, Flurina M ; Purves, Ross S (2017). What’s (not) on the map: landscape features from participatory sketch mapping differ from local categories used in language. Land, 6(4):79. Grütter, Rolf ; Purves, Ross S ; Wotruba, Lukas (2017). Evaluating topological queries in linked data using DBpedia and GeoNames in Switzerland and Scotland. Transactions in GIS, 21(1):114-133. Acheson, Elise ; De Sabbata, Stefano ; Purves, Ross S (2017). A quantitative analysis of global gazetteers: Patterns of coverage for common feature types. Computers, Environment and Urban Systems, 64:309-320. Baltensweiler, Andri ; Walthert, Lorenz ; Ginzler, Christian ; Sutter, Flurin ; Purves, Ross S ; Hanewinkel, Marc (2017). Terrestrial laser scanning improves digital elevation models and topsoil pH modelling in regions with complex topography and dense vegetation. Environmental Modelling & Software, 95:13-21. Zahra, Kiran ; Ostermann, Frank O ; Purves, Ross S (2017). Geographic variability of Twitter usage characteristics during disaster events. Geo-Spatial Information Science, 20(3):231-240. Techel, Frank ; Schweizer, Jürg (2017). On using local avalanche danger level estimates for regional forecast verification. Cold Regions Science and Technology, 144:52-62. Conference or Workshop item Acheson, Elise ; Villette, Julia ; Volpi, Michele ; Purves, Ross S (2017). Gazetteer matching for natural features in Switzerland. In: GIR'17 11th Workshop on Geographic Information Retrieval, Heidelberg (Deutschland), 30 November 2017 - 1 December 2017, online. Chesnokova, Olga ; Nowak, Mario ; Purves, Ross S (2017). A crowdsourced model of landscape preference. In: COSIT 2017: International Conference on Spatial Information Theory, L'Aquila (I), 4 September 2017 - 8 September 2017. Acheson, Elise ; Wartmann, Flurina M ; Purves, Ross S (2017). Generating spatial footprints from hiking blogs. In: COSIT 2017: International Conference on Spatial Information Theory, L'Aquila (I), 4 September 2017 - 8 September 2017, 5-7. 2016 Journal Article Badoux, Alexandre ; Andres, Norina ; Techel, Frank ; Hegg, Christoph (2016). Natural hazard fatalities in Switzerland from 1946 to 2015. Natural Hazards and Earth System Sciences, 16(12):2747-2768. Das, R ; Srowig, T ; Verma, R ; Koduru, S ; Hafemann, A ; Hopf, S ; Kocoglu, M H ; Borsotti, C ; Zhang, L ; Branagan, A ; Eynon, E ; Manz, M G ; Flavell, R A ; Dhodapkar, M V (2016). Microenvironment-dependent growth of preneoplastic and malignant plasma cells in humanized mice. Nature Medicine, 22(11):1351-1357. Wartmann, Flurina M ; Derungs, Curdin ; Purves, Ross S (2016). Characterizing place: an empirical comparison between user-generated content and freelisting data. International Conference on GIScience Short Paper Proceedings, 1(1):336-339. Chesnokova, Olga ; Gregory, Ian N ; Purves, Ross S (2016). Comparing digital traces of modern travellers to journeys of two 18th-19th century British poets. International Conference on GIScience Short Paper Proceedings, 1(1):45-48. Egorova, Ekaterina ; Boo, Gianluca ; Purves, Ross S (2016). The ridge went north : Did the observer go as well? Corpus-driven investigation of fictive motion. International Conference on GIScience Short Paper Proceedings, 1(1):92-95. Wirz, Vanessa ; Geertsema, Marten ; Gruber, Stephan ; Purves, Ross S (2016). Temporal variability of diverse mountain permafrost slope movements derived from multi-year daily GPS data, Mattertal, Switzerland. Landslides, 13(1):67-83. Wirz, Vanessa ; Gruber, Stephan ; Purves, Ross S ; Beutel, Jan ; Gärtner-Roer, Isabelle ; Gubler, Stefanie ; Vieli, Andreas (2016). Short-term velocity variations at three rock glaciers and their relationship with meteorological conditions. Earth Surface Dynamics, 4(1):103-123. Derungs, Curdin ; Purves, Ross S (2016). Mining nearness relations from an n-grams Web corpus in geographical space. Spatial Cognition & Computation, 16(4):301-322. Techel, Frank ; Jarry, Frédéric ; Kronthaler, Georg ; Mitterer, Susanna ; Nairz, Patrick ; Pavšek, Miha ; Valt, Mauro ; Darms, Gian (2016). Avalanche fatalities in the European Alps: long-term trends and statistics. Geographica Helvetica, 71(2):147-159. Reisser, Moritz ; Purves, Ross S ; Schmidt, Michael W I ; Abiven, Samuel (2016). Pyrogenic Carbon in Soils: A Literature-Based Inventory and a Global Estimation of Its Content in Soil Organic Carbon and Stocks. Frontiers in Earth Science:4:80. Reichenbacher, Tumasch ; De Sabbata, Stefano ; Purves, Ross S ; Fabrikant, Sara I (2016). Assessing geographic relevance for mobile search: A computational model and its validation via crowdsourcing. Journal of the Association for Information Science and Technology, 67(11):2620-2634. Comber, Alexis ; Mooney, Peter ; Purves, Ross S ; Rocchini, Duccio ; Walz, Ariane (2016). Crowdsourcing: It Matters Who the Crowd Are. The Impacts of between Group Variations in Recording Land Cover. PLoS ONE, 11(7):e0158329. Derungs, Curdin ; Purves, Ross S (2016). Characterising landscape variation through spatial folksonomies. Applied Geography, 75:60-70. Wartmann, Flurina M ; Haller, Tobias ; Backhaus, Norman (2016). “Institutional Shopping” for natural resource management in a protected area and indigenous territory in the Bolivian Amazon. Human Organization, 75(3):218-229. Conference or Workshop item Winkler, Kurt ; Fischer, Adrian ; Techel, Frank (2016). Avalanche risk in winter backcountry touring: status and recent trends in Switzerland. In: International Snow Science Workshop, Breckenridge, Co., USA, 3 October 2016 - 7 October 2016, 270-276. Techel, Frank ; Dürr, Lukas ; Schweizer, Jürg (2016). Variations in individual danger level estimates within the same forecast region. In: International Snow Science Workshop, Breckenridge, Co., USA, 3 October 2016 - 7 October 2016, 466-471. Techel, Frank ; Walcher, Matthias ; Winkler, Kurt (2016). Extended Column Test: repeatability and comparison to slope stability and the Rutschblock. In: International Snow Science Workshop, Breckenridge, Colorado, 2016, Breckenridge, Co., USA, 3 October 2016 - 7 October 2016, 1203-1208. Bahrehdar, Azam ; Purves, Ross S (2016). Linking VGI for place-based map generalization. In: AGILE 2016, Helsinki, 14 June 2016 - 14 June 2016, 1-4. De Sabbata, Stefano ; Acheson, Elise (2016). Geographies of gazetteers in Great Britain. In: 24th GIS Research UK (GISRUK 2016) conference, Greenwich, 30 March 2016 - 1 April 2016. Dissertation Wartmann, Flurina M . From space to place in the Bolivian Amazon : exploring and representing folk landscape categories with ethnographic and GIS approaches. 2016, University of Zurich, Faculty of Science. 2015 Journal Article Purves, Ross S ; Palacio, Damien ; Derungs, Curdin (2015). Development and evaluation of a geographic information retrieval system using fine grained toponyms. Journal of Spatial Information Science, (11):1-29. Leemann, Adrian ; Kolly, Marie-José ; Purves, Ross S ; Britain, David ; Glaser, Elvira (2015). Crowdsourcing language change with smartphone applications. PLoS ONE, 11(1):online. Egli, Markus ; Maisch, Max ; Purves, Ross S ; Cöltekin, Arzu ; Hilbich, Christin (2015). Multi-methodological reconstruction of the lake level at Morgarten in the context of the history of the Swiss Confederation. The Holocene, 25(11):1727-1741. Purves, Ross S ; Derungs, Curdin (2015). From space to place: place-based explorations of text. International Journal of Humanities and Arts Comouting, 9(1):74-94. Weinhardt, L ; Ertan, E ; Iannuzzi, M ; Weigand, M ; Fuchs, O ; Bär, M ; Blum, M ; Denlinger, J D ; Yang, W ; Umbach, E ; Odelius, M ; Heske, C (2015). Probing hydrogen bonding orbitals: resonant inelastic soft X-ray scattering of aqueous NH3. Physical Chemistry Chemical Physics (PCCP), 17(40):27145-27153. Book Section Ostermann, Frank O ; Huang, Haosheng ; Andrienko, Gennady ; Andrienko, Natalia ; Capineri, Cristina ; Farkas, K ; Purves, Ross S (2015). Extracting and comparing places using Geo-Social Media. In: Mallet, C ; Paparoditis, N ; Dowman, I ; Oude Elberink, S ; Raimond, A-M ; Rottensteiner, F ; Yang, M ; Christophe, S ; Coltekin, Arzu ; Brédif, M . ISPRS Geospatial Week 2015. Göttingen: Copernicus Publications, 311-316. Wartmann, Flurina M ; Egorova, Ekaterina ; Derungs, Curdin ; Mark, David M ; Purves, Ross S (2015). More than a list: what outdoor free listings of landscape categories reveal about commonsense geographic concepts and memory search strategies. In: Fabrikant, Sara I ; Raubal, Martin ; Bertolotto, Michela ; Davies, Clare ; Freundschuh, Scott ; Bell, Scott . Spatial Information Theory. 12th International Conference, COSIT 2015, Santa Fe, NM, USA, October 12-16, 2015, Proceedings. Cham: Springer, 224-243. Egorova, Ekaterina ; Tenbrink, Thora ; Purves, Ross S (2015). Where snow is a landmark: route direction elements in Alpine contexts. In: Fabrikant, Sara I ; Raubal, Martin ; Bertolotto, Michela ; Davies, Clare ; Freundschuh, Scott ; Bell, Scott . Spatial Information Theory. 12th International Conference, COSIT 2015, Santa Fe, NM, USA, October 12-16, 2015, Proceedings. Cham: Springer, 175-195. 2014 Journal Article Wartmann, Flurina M ; Juárez, Cecilia P ; Fernandez-Duque, Eduardo (2014). Size, site fidelity, and overlap of home ranges and core areas in the socially monogamous Owl monkey (Aotus azarae) of northern Argentina. International Journal of Primatology:online. Purves, Ross S ; Laube, Patrick ; Buchin, Maike ; Speckmann, Bettina (2014). Moving beyond the point: An agenda for research in movement analysis with real data. Computers, Environment and Urban Systems, 47:1-4. Veitinger, Jochen ; Sovilla, Betty ; Purves, Ross S (2014). Influence of snow depth distribution on surface roughness in alpine terrain: A multi-scale approach. The Cryosphere, 8(2):547-569. Hahmann, Stefan ; Purves, Ross S ; Burghardt, Dirk (2014). Twitter location (sometimes) matters: Exploring the relationship between georeferenced tweet content and nearby feature classes. Journal of Spatial Information Science, (9):1-36. Venkateswaran, Ramya ; Weibel, Robert ; Purves, Ross S (2014). Exploring and visualizing differences in geographic and linguistic web coverage. Transactions in GIS, 18(6):852-876. Wirz, Vanessa ; Beutel, Jan ; Gruber, Stephan ; Gubler, Stefanie ; Purves, Ross S (2014). Estimating velocity from noisy GPS data for investigating the temporal variability of slope movements. Natural Hazards and Earth System Sciences, 14(9):2503-2520. Züst, Fabian ; Dahms, Dennis ; Purves, Ross S ; Egli, Markus (2014). Surface reconstruction and derivation of erosion rates over several glaciations (1Ma) in an alpine setting (Sinks Canyon, Wyoming, USA). Geomorphology, 219:232-247. Zellweger, Florian ; Morsdorf, Felix ; Purves, Ross S ; Braunisch, Veronika ; Bollmann, Kurt (2014). Improved methods for measuring forest landscape structure: LiDAR complements field-based habitat assessment. Biodiversity and Conservation, 23(2):289-307. Conference or Workshop item Veitinger, Jochen ; Sovilla, Betty ; Purves, Ross S (2014). Slab avalanche release area estimation: a new GIS tool. In: International Snow Science Workshop 2014, Banff (Canada), 29 September 2014 - 3 October 2014, 256-262. Comber, Alexis ; Purves, Ross S (2014). Comparing different crowdsourced data: an analysis of Flickr elements, qualities and activities with Geo-Wiki land cover. In: GIScience 2014: Eighth International Conference on Geographic Information Science, Vienna (A), 23 September 2014 - 26 September 2014, 201-204. Derungs, Curdin ; Purves, Ross S (2014). Where’s near? Using web tri-grams to explore spatial relations. In: GIScience 2014: Eighth International Conference on Geographic Information Science, Vienna (A), 23 September 2014 - 26 September 2014, 158-162. Wartmann, Flurina M ; Purves, Ross S (2014). Why landscape terms matter for mapping: A comparison of ethnogeographic categories and scientific classification. In: GIScience 2014: Eighth International Conference on Geographic Information Science, Vienna (A), 23 September 2014 - 26 September 2014, 192-194. 2013 Journal Article Derungs, Curdin ; Purves, Ross S (2013). From text to landscape: locating, identifying and mapping the use of landscape features in a Swiss Alpine corpus. International Journal of Geographical Information Science:online. Ostermann, Frank O ; Tomko, Martin ; Purves, Ross S (2013). User evaluation of automatically generated keywords and toponyms for geo-referenced images. Journal of the American Society for Information Science and Technology, 64(3):480-499. Gubler, Stefanie ; Endrizzi, Stefano ; Gruber, Stephan ; Purves, Ross S (2013). Sensitivities and uncertainties of modeled ground temperatures in mountain environments. Geoscientific Model Development, 6(4):1319-1336. Book Section Derungs, Curdin ; Wartmann, Flurina M ; Purves, Ross S ; Mark, David M (2013). The meanings of the generic parts of toponyms: use and limitations of gazetteers in studies of landscape terms. In: Tenbrink, Thora ; Stell, John ; Galton, Antony ; Wood, Zena . Spatial Information Theory. Cham: Springer, 261-278. Conference or Workshop item Palacio, Damien ; Derungs, Curdin ; Purves, Ross S (2013). Creating test collections from user generated content for GIR evaluation. In: GIR'13: 7th ACM SIGSPATIAL Workshop on Geographic Information Retrieval, Orlando, FL, USA, 5 November 2013 - 5 November 2013, 82-83. Wider, Thomas ; Palacio, Damien ; Purves, Ross S (2013). Georeferencing images using tags: application with Flickr. In: The 15th AGILE International Conference on Geographic Information Science, Leuven, Belgium, 14 May 2013 - 17 May 2013, online. 2012 Journal Article Shamoun-Baranes, Judy ; van Loon, E Emiel ; Purves, Ross S ; Speckmann, Bettina ; Weiskopf, Daniel ; Camphuysen, C J (2012). Analysis and visualization of animal movement. Biology Letters, 8(1):6-9. Gschwend, Christian ; Purves, Ross S (2012). Exploring geomorphometry through user generated content: comparing an unsupervised geomorphometric classification with terms attached to georeferenced images in Great Britain. Transactions in GIS, 16(4):499-522. Fischer, L ; Purves, Ross S ; Huggel, Christian ; Noetzli, Jeannette ; Haeberli, Wilfried (2012). On the influence of topographic, geological and cryospheric factors on rock avalanches and rockfalls in high-mountain areas. Natural Hazards and Earth System Science, 12(1):241-254. Gubler, Stefanie ; Gruber, Stephan ; Purves, Ross S (2012). Uncertainties of parameterized surface downward clear-sky shortwave and all-sky longwave radiation. Atmospheric Chemistry and Physics, 12(11):5077-5098. Conference or Workshop item Derungs, Curdin ; Palacio, Damien ; Purves, Ross S (2012). Resolving fine granularity toponyms: Evaluation of a disambiguation approach. In: GIScience 2012: Seventh International Conference on Geographic Information Science, Columbus, Ohio, 18 September 2012 - 21 September 2012, online. Derungs, Curdin ; Purves, Ross S (2012). Measuring topographic similarity of toponyms. In: AGILE 2012, 15th AGILE International Conference on Geographic Information Science, Avignon, FR, 24 April 2012 - 27 April 2012, 30-34. 2011 Journal Article Purves, Ross S ; Jones, Christopher B (2011). Geographic information retrieval. SIGSPATIAL Special, 3(2):2-4. Rinta, Tiija ; Purves, Ross S ; Welch, Graham ; Stadler Elmer, Stefanie ; Bissig, Raffaela (2011). Connections between children's feelings of social inclusion and their musical backgrounds. Journal of Social Inclusion, 2(2):34-57. Purves, Ross S ; Edwardes, Alistair J ; Wood, Jo (2011). Describing place through user generated content. First Monday, 16(9):online. Laube, Patrick ; Purves, Ross S (2011). How fast is a cow? Cross-scale analysis of movement data. Transactions in GIS, 15(3):401-418. Pozdnoukhov, Alexei ; Matasci, Giona ; Kanevski, Mikhail ; Purves, Ross S (2011). Spatio-temporal avalanche forecasting with support vector machines. Natural Hazards and Earth System Sciences, 11(2):367-382. Straumann, Ralph K ; Purves, Ross S (2011). Computation and elicitation of valleyness. Spatial Cognition and Computation, 11(2):178-204. Book Section Purves, Ross S (2011). Methods, examples and pitfalls in the exploitation of the geospatial web. In: Hesse-Biber, S N . The Handbook of Emergent Technologies in Social Research. New York: Oxford University Press, 592-624. Conference or Workshop item Derungs, Curdin ; Purves, Ross S ; Waldvogel, Bettina (2011). Toponym disambiguation of landscape features using geomorphometric characteristics. In: 11th International Conference of GeoComputation, London, 20 July 2011 - 22 July 2011, 106-110. Stadler, Benjamin ; Purves, Ross S ; Tomko, Martin (2011). Exploring the relationship between land cover and subjective evaluation of scenic beauty through user generated content. In: 25th International Cartographic Conference, Paris, FR, 3 July 2011 - 8 July 2011. Gschwend, Christian ; Purves, Ross S (2011). Comparing Flickr tags to a geomorphometric classification. In: 19th GIS Research UK Annual Conference, Portsmouth, 27 April 2011 - 29 April 2011, 174-178. 2010 Journal Article Hollenstein, Livia ; Purves, Ross S (2010). Exploring place through user-generated content: Using Flickr to describe city cores. Journal of Spatial Information Science, 1(1):21-48. Wartmann, Flurina M ; Purves, Ross S ; van Schaik, Carel P (2010). Modelling ranging behaviour of female orang-utans: a case study in Tuanan, Central Kalimantan, Indonesia. Primates, 51(2):119-130. Book Section Laube, Patrick ; Purves, Ross S (2010). Cross-scale movement trajectory analysis. In: Haklay, Muki . Proceedings of the GIS Research UK 18th Annual Conference GISRUK 2010. London, UK: University College London, 103-107. Conference or Workshop item Tomko, Martin ; Purves, Ross S (2010). Matterhorn on the horizon: identification of salient mountains for image annotation. In: roceedings of the GIS Research UK 18th Annual Conference GISRUK 2010, University College London (UCL), 14 April 2010 - 16 April 2010, 359-362. Purves, Ross S ; Edwardes, Alistair ; Fan, Xin ; Hall, Mark ; Tomko, Martin (2010). Automatically generating keywords for georeferenced images. In: Proceedings of the GIS Research UK 18th Annual Conference GISRUK 2010, University College London (UCL), 14 April 2010 - 16 April 2010, 203-207. 2009 Journal Article Tomko, Martin ; Purves, Ross S (2009). Venice, city of canals: characterizing regions through content classification. Transactions in GIS, 13(3):295 - 314. Hebeler, Felix ; Purves, Ross S (2009). The influence of elevation uncertainty on derivation of topographic indices. Geomorphology, 111(1-2):4-16. Aberegg, Isabelle ; Egli, Markus ; Sartori, Giacomo ; Purves, Ross S (2009). Modelling spatial distribution of soil types and characteristics in a high Alpine valley (Val di Sole, Italy). Studi Trentini di Scienze Naturali, 85:39-50. Book Section Tomko, Martin ; Trautwein, Friedjoff ; Purves, Ross S (2009). Identification of practically visible spatial objects in natural environments. In: Sester, Monika ; Bernard, Lards ; Paelke, Volker . Advances in GIScience. Berlin: Springer (Bücher), 1-23. Jones, Christopher B ; Purves, Ross S (2009). Geographic information retrieval. In: Liu, Ling ; Özsu, M Tamer . Encyclopedia of database systems; Part 7. New York, US: Springer, 1227 -1231. 2008 Journal Article Hebeler, Felix ; Purves, Ross S ; Jamieson, Stewart R (2008). The impact of parametric uncertainty and topographic error in ice-sheet modelling. Journal of Glaciology, 54(188):889-919. Machguth, Horst ; Purves, Ross S ; Oerlemans, Johannes ; Hoelzle, Martin ; Paul, Frank (2008). Exploring uncertainty in glacier mass balance modelling with Monte Carlo simulation. The Cryosphere, 2(2):191-204. Yang, Bisheng ; Purves, Ross S ; Weibel, Robert (2008). Variable-resolution Compression of Vector Data. GeoInformatica, 12(3):357-376. Hebeler, Felix ; Purves, Ross S (2008). The influence of resolution and topographic uncertainty on melt modelling using hypsometric sub-grid parameterization. Hydrological Processes, 22:3965-3979. Pozdnoukhov, Alexei ; Purves, Ross S ; Kanevski, Mikhail (2008). Applying machine learning methods to avalanche forecasting. Annals of Glaciology, 49(1):107-113. Jones, Christopher B ; Purves, Ross S (2008). Geographical information retrieval. International Journal of Geographical Information Science, 22(3):219-228. Jones, Christopher B ; Purves, Ross S ; Clough, Paul D ; Joho, Hideo (2008). Modelling vague places with knowledge from the Web. International Journal of Geographical Information Science, 22(10):1045-1065. Book Section Dias, E S ; Edwardes, Alistair J ; Purves, Ross S (2008). Analysing and aggregating visitor tracks in a protected area. In: Stein, A ; et al . Quality Aspects in Spatial Data Mining. Oxfordshire: CRC Press, 1-29. Corripio, Javier G ; Purves, Ross S ; Rivera, Andrés (2008). Modeling climate-change impacts on mountain glaciers and water resources in the Central Dry Andes. In: Orlove, B ; et al . Darkening Peaks: Glacier Retreat, Science, and Society. Berkeley, US: University of California Press, 126-135. Purves, Ross S ; Edwardes, Alistair J ; Sanderson, Mark (2008). Describing the where – improving image annotation and search through geography. In: Csurka, G . Proceedings of the workshop on Metadata Mining for Image Understanding (MMIU 2008). Setúbal: Insticc Press, 105-113. Walz, Ariane ; Bebi, Peter ; Purves, Ross S (2008). A comparison of two techniques for local land-use change simulation in the swiss mountain area. In: Lovett, A ; et al . GIS for Environmental Decision-Making. Boca Raton, US: CRC Press, 131-148. Straumann, Ralph K ; Purves, Ross S (2008). Delineation of valleys and valley floors. In: Cova, T J ; et al . Geographic Information Science. Berlin, Heidelberg: Springer Verlag, 320-336. Hebeler, Felix ; Purves, Ross S (2008). Modelling DEM data uncertainties for Monte Carlo simulations of ice sheet models. In: Stein, Al ; Shi, J ; Bijker, W . Quality Aspects in Spatial Data Mining. Boca Raton: CRC Press, 175-196. Conference or Workshop item Pasley, Robert ; Clough, Paul ; Purves, Ross S ; Twaroch, Florian A (2008). Mapping geographic coverage of the web. In: 16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS 2008), Irvine, US, 5 November 2008 - 7 November 2008, 1-9. Barker, Emma J ; Purves, Ross S (2008). A caption annotation scheme for georeferencing images. In: Proceeding of the 2nd international workshop on Geographic information retrieval, Napa Valley, US, 29 October 2008 - 30 October 2008, 45-46. Brunner, Tobias J ; Purves, Ross S (2008). Spatial autocorrelation and toponym ambiguity. In: Proceeding of the 2nd international workshop on Geographic information retrieval, Napa Valley, US, 29 October 2008 - 30 October 2008, 25-26. Tomko, Martin ; Purves, Ross S (2008). Characterizing regions through content classification.. In: GIScience 2008 - Fifth International Conference on Geographic Information Science, Park City, Utah, 23 September 2008 - 26 September 2008. Tomko, Martin ; Purves, Ross S (2008). Categorical prominence and the characteristic description of regions.. In: Semantic Web meets Geospatial Applications, Girona, Spain, 5 May 2008 - 5 May 2008, 1-9. 2007 Journal Article Purves, Ross S ; Clough, Paul ; Jones, Christopher B ; Arampatzis, Avi ; Bucher, Benedicte ; Finch, David ; Fu, Gaihua ; Joho, Hideo ; Syed, Awase Khirni ; Vaid, Subodh ; Yang, Bisheng (2007). The design and implementation of SPIRIT: a spatially aware search engine for information retrieval on the Internet. International Journal of Geographical Information Science, 21(7):717-745. Yang, Bisheng ; Purves, Ross S ; Weibel, Robert (2007). Efficient transmission of vector data over the Internet. International Journal of Geographical Information Science, 21(2):215-237. Book Section Straumann, Ralph K ; Purves, Ross S (2007). Resolution sensitivity of a compound terrain derivative as computed from LiDAR-based elevation data. In: Fabrikant, Sara I ; Wachowicz, Monica . The European information society. Leading the way with Geo-information. Berlin: Springer, 87-109. Laube, Patrick ; Purves, Ross S ; Imfeld, Stephan ; Weibel, Robert (2007). Analysing point motion with geographic knowledge discovery techniques. In: Drummond, Jane ; Billen, Roland ; Joao, Elsa ; Forrest, David . Dynamic and Mobile GIS: Investigating Changes in Space and Time. Boca Raton (USA): C R C Press, LLC, 263-286. Edwardes, Alistair ; Purves, Ross S (2007). A theoretical grounding for semantic descriptions of place. In: Ware, J Mark ; Taylor, George E . Web and Wireless Geographical Information Systems 7th International Symposium, W2GIS 2007, Cardiff, UK, November 28-29, 2007. Proceedings. Berlin: Springer, 106-120. Conference or Workshop item Edwardes, Alistair J ; Purves, Ross S (2007). Eliciting concepts of place for text-based image retrieval. In: 4th ACM Workshop on Geographical Information Retrieval, CIKM 2007, Lissabon (P), 6 November 2007 - 10 November 2007, 15-18. Hebeler, Felix ; Purves, Ross S (2007). Modelling DEM data uncertainties for Monte Carlo Simulations of Ice Sheet Models. In: 5th International Symposium on Spatial Data Quality, ITC, Enschede, 13 June 2007 - 17 June 2007. Dias, E S ; Edwardes, A J ; Purves, Ross S (2007). Analysing and aggregating visitor tracks in a protected area. In: 5th International Symposium on Spatial Data Quality, Enschede, 13 June 2007 - 15 June 2007, online. Purves, Ross S ; Korup, Oliver (2007). Multiscale analysis of hillslope height for geomorphometry. In: GISRUK 2007 Geographical Information Science Research Conference, Maynooth (Ireland), 11 April 2007 - 13 April 2007, 484-488. Derungs, Curdin ; Purves, Ross S (2007). Empirical experiments on the nature of Swiss mountains. In: GISRUK 2007 Geographical Information Science Research Conference, Maynooth (Ireland), 11 April 2007 - 13 April 2007, online. 2006 Journal Article Laube, Patrick ; Purves, Ross S (2006). An approach to evaluating motion pattern detection techniques in spatio-temporal data. Computers, Environment and Urban Systems, 30(3):347-374. Campbell, Fay M A ; Nienow, Peter W ; Purves, Ross S (2006). Role of the supraglacial snowpack in mediating meltwater delivery to the glacier system as inferred from dye tracer investigations. Hydrological Processes, 20(4):969-985. Purves, Ross S ; Jones, Christopher B (2006). Geographic Information Retrieval (GIR). Computers, Environment and Urban Systems, 30(4):375-377. Book Section Purves, Ross S ; Hebeler, F (2006). Uncertainty and terrain data in ice-sheet modelling (Case study). In: Heywood, Ian ; Cornelius, Sarah ; Carver, Steve . An introduction to Geographical Information Systems. Harlow: Pearson, ?. Clough, Paul D ; Joho, Hideo ; Purves, Ross S (2006). Judging the spatial relevance of documents for GIR. In: Lalmas, Mounia ; MacFarlane, Andy ; Rüger, Stefan ; Tombros, Anastasios ; Tsikrika, Theodora ; Yavlinsky, Alexei . Advances in Information Retrieval. Berlin: Springer, 548-552. Conference or Workshop item Purves, Ross S ; Heierli, Joachim (2006). Evaluating nearest neighbours in avalanche forecasting - a qualitative approach to assessing information content?. In: International Snow Science Workshop, Telluride CO, 1 October 2006 - 6 October 2006, 701-708. Maggioni, Margherita ; Gruber, Urs ; Purves, Ross S ; Freppaz, Michele (2006). Potential release areas and return period of avalanches: is there a relation?. In: International Snow Science Workshop 2006, Telluride CO, 1 October 2006 - 6 October 2006, online. Purves, Ross S ; Clough, Paul D (2006). Judging spatial relevance and document location for Geographic Information Retrieval. In: GIScience 2006, Münster (D), 20 September 2006 - 23 September 2006, 159-164.