Archive for the ‘506’ Category

Sieber and Sengupta: Geospatial Agents Everywhere

Sunday, October 1st, 2017

Sieber and Sengupta’s paper on geospatial agents situates artificially intelligent agents within the context to GIScience. This spatial context results in the geographically oriented applications of the concept referred to as ‘Artificial Life Geospatial Agents’ (ALGA’s) and ‘Software Geospatial Agents’ (SGA’s). Effectively, these agents are technologies that allow GIScientist to be more efficient in their work by automating elements of the GIS process. These agents are limited by the information available to them; essentially the information available to them is the data that has been made public/accessible. The environments in which the agents are situated could lead to discrepancies among users depending on the information available to the user. in other terms, considering privacy, a user with extensive private data may have more applications and success with the agents than a user using only publicly available data.

I believe that the article handles the subject well within the domain of artificial intelligence. However, as someone with layman information regarding AI, I feel that more context regarding AI at the foundation might have helped to explain how these agents function; understanding the limitations, and the possibilities in addition to the applications might have helped clear up some of the ambiguity I had around the topics.

The article has encouraged me to explore these limitations and see what applications these agents might have for someone for a GIS user such as myself. It would be important to see how much information is needed on behalf of the user to properly take advantage of the geospatial agents.

Sengupta and Sieber – Geospatial agents

Saturday, September 30th, 2017

According to Woolridge and Jennings (1995), an artificial intelligent (AI) agent must be able to  (1) behave autonomously; (2) sense its environment and other agents; (3) act upon its environment; and (4) make rational decisions. For geospatial agents, this environment is (or is a subset of) ‘the earth’. Consequently, a geospatial agent may also have access to other geographic data, which it can compare to its own sensing data to make decisions.

In their paper, Sengupta and Sieber argue that GIScience provides a strong context for the study of spatially explicit AI agents and their expanding array of applications. GIScientists are well equipped not only to answer questions about the nature of AI agents in geographic space, but also, importantly, possess a rich toolkit to examine the “cultural and positivist assumptions” underlying AI. It is less clear for me however, why an AI agent lacking knowledge of its geolocation would be dysfunctional in a non-geographic environment. Would a UAV with limited storage/ processing resources navigating the corridors of an unknown building preference geospatial information over its own sensory data?

The Sungupta (forthcoming 2018) paper outlines a particular application of agent-based modelling (ABM) in movement ecology. Statistical and spectral analyses of location data revealed distinct patterns and trends in the monkey’s movements at different spatiotemporal scales, suggesting the existence of movement ‘rules’, which part-governed their behaviour. I did not fully understand when, and at what temporal granularity the observations were made (day or night?), or how many data points constituted a particular observation (one ‘observation’ every 15 mins for 1.5 years = 52560 point observations), which would affect the ‘stationary: movement’ ratio used in calculations. These types of model provide us with a powerful method to capture ‘characteristic’ behaviours and explore relationships between organic agents and their environment.

The animals for which the largest and most finely resolved geospatial datasets now exist are humans. As ABM models become more sophisticated and well-trained, to what extent will modellers be able to infer Nathan et al’s (2008) mechanistic components from an individual’s movement data? Controlling for their capacity for navigation/ movement, and external factors, how readily could their ‘internal state’ be estimated? Is movement-derived mood-based advertising on the horizon?
-slumley

Geospatial Agents, Agents Everywhere… Sengupta and Sieber (2007)

Thursday, September 28th, 2017

I thought this review was an interesting contrast to the discourse presented in the Wright et al. (1997) article on GIS as a tool or science. There seems to have been a transition from GIScience arguing for its own existence to asserting its domain over established concepts.

At first, I was a little skeptical of the unique “geospatial” designation for agents used in GIScience. I was easily persuaded of the commonalities between the properties of intelligent agents described in AI research and those applied in GIScience. Perhaps too easily persuaded. I struggled with how geospatial agents could be distinguished from other intelligent agents–particular those that don’t explicitly operate in geographic space. The element of geographic space is more evident in the case of artificial life geospatial agents, but at a glance, a software geospatial agent used to locate and retrieve spatial data from the Internet might resemble any other intelligent agent used to scrape non-spatial data. Of course, handling any spatial information requires some understanding of topology, scale, spatial data structures, etc. that is inherent to GIScience. In fact, I would imagine many intelligent agents implemented outside the domain of GIScience could benefit from the nuance that GIScience is able to offer.

I’m convinced! Geospatial agents most definitely necessitate their own designation. Again I’m reminded of the plight of the neogeographer. The article demonstrates a clear need for GIScience considerations in what are sometimes careless applications of geospatial information in technology.

On Sengupta et al. (forthcoming 2018), movement, and ABMs

Thursday, September 28th, 2017

I thought Sengupta et al.’s article, “Automated Extraction of Movement Rationales for Building Agent-Based Models: Example of a Red Colobus Monkey Group” (forthcoming 2018), was incredibly interesting. “Automated Extraction” discusses the use of agent-based modeling (ABM) strategies in simulating red colobus monkey groups’ movements “across space and time and predict[ing] environmental outcomes” (2). Utilizing the knowledge of experts as input, the modelling hopes to augment “the expert’s interpretation” (2).

At the conclusion of the article, Sengupta et al. note the possibility of ABM’s eventual replacement of scientists’ “heuristic knowledge” (11). It is exciting that ABM is continuing in the theme of original excitement behind GIS (helping us identify patterns that are not easily discernible quantitatively). However, it is also incredibly worrying, as it has the possibility of growing larger than zoological research purposes.

Sengupta et al.’s model relies on human monitoring of the model to check for errors, and the model requires more information from human experts’ field observations to become better at modelling. If AI were to be introduced to the model, and the model learns and understands the patterns better than human experts have observed or can observe, could we reach a point where nothing is unpredictable?

Continuing with the animal theme, this information could be used to predict, for example, where a group could be at a given time and then used on wildlife reserves to organize tours with high success of tourists seeing animals, or help researchers with short time-tables to most effectively study the animals. However, if poachers were to access (possibly) highly accurate modelling, they could more accurately predict the location(s) of groups of animals on the reserve and become more effective hunters of protected species.

For applications using human populations, ABM could be used for humanitarian purposes, like finding the most ideal evacuation routes (and edit existing routes or add new ones) for natural disasters, for example. However, if the model learns extremely well and everything becomes predictable, what would stop nefarious actors from using this information on human populations to catastrophic degrees?

Automated extraction of movement rationales for building ABMs: Sengupta et al. (2018)

Thursday, September 28th, 2017

I found both of these articles really fascinating, and found it helpful to understand the theories and differences between the ALGAs and SGAs presented in Sengupta and Sieber (2007), especially in analyzing the ABM presented in Sengupta et al. (2018).

Sengupta et al. (2018) use field-recorded data on Red Colobus monkey location and movements in space and time, combined with other GIS data (land cover type, slope) to automate ABM movement rules in an ALGA. Sengupta and Sieber (2007) suggest that ALGAs began with studying the flocking behaviours of animals and birds. To me, this suggests that the effects of a study on animals can have broad-reaching effects, beyond the study of “movement ecology” (2).

Sengupta et al. (2018) suggest that the advancement of high-resolution tracking technologies have created an ‘“enormous volume” (2) of data (i.e. big data). In this study, the authors refer to big data derived from GPS tags on animals, but couldn’t this easily be expanded to the movement-tracking (big data-creating) devices we carry around with us all day? Is there justification for concern given the necessarily reductive and therefore inherently wrong nature of models? Are our movements as easy to predict as a Red Colobus Monkeys’?

Though I tend to be a bit a doomsday-ist and cynic, in this case, I think that though models may try to track behaviours and predict movements, both humans and animals have one things the models don’t have: free will. Though the models can incorporate and automate complex decision-making models, I think that humans and monkeys and various other animals sometimes make irrational decisions that models cannot predict. In fact, I think that there is a huge potential for error in these models, which neither article addresses.

PPGIS Literature & Framework

Sunday, September 24th, 2017

The idea of PPGIS may appear relatively abstract when compared to the run-of-the-mill public participation (PP) process but at its core it is striving to accomplish the same thing. It is unbiasedly taking stakeholders into consideration for projects by giving them all the same information they would have in a regular PP process but with the addition of a simple (in most cases) geovisualization/spatial representation. This provides the stakeholder with perspective/insight that potentially could have been overlooked.

As noted in the article, PPGIS has grown to cover an extensive range of applications. As the technology changes and individual projects differ so does the PPGIS process. This left me with a more abstract understanding of these projects than I would have liked. It left me intrigued by the possibility of projects; what does a basic but useful geographic information system consist of that translates useful information from layman to the experts. The author includes brief and vague examples of interfaces that left me curious to find out more. Considering the purpose and nature of the article, this general coverage of case examples was definitely sufficient.

Throughout the article, the abstractness of the concept of PPGIS fades away; because it is highly interdisciplinary and has changed so much over time, attempting to define PPGIS is confusing. it was only later in the article that I began to fully understand what a PPGIS project really was/could be.

Regarding the age of the article (11 years (published in 2006)), I would be disappointed to find out that great strides had not been made in this field. The prevalence of natural user interface devices available now (e.g. iPad’s & smartphones) have effectively expanded the amount of potential participants for PPGIS projects. With proper software, intuitive and efficient PPGIS programs and systems could provide more comprehensive participation and ideally more successful projects.

PPGIS: Literature Review and Framework, Sieber (2006)

Sunday, September 24th, 2017

Sieber’s article establishes the historical context for PPGIS, and explores a framework for evaluation based on themes found throughout the PPGIS literature. It’s an interesting point that the term “participation” itself suggests the need for some intermediary. If PPGIS is to be viewed as a decision making tool, I would imagine that the typical role of the intermediary is to facilitate the relationship between stakeholders and decision makers, perhaps by way of technical GIS expertise. When stakeholders are empowered by a “bottom-up process,” or their own decision-making power or technical expertise, does a PPGIS framework still hold? Is the ambiguity a problematic feature of PPGIS, or is it that it should be differentiated from PPGIS in some way?

 

I was really struck by the discussion about public participation as a “ladder of increasing involvement and influence in public policymaking.” Admittedly–maybe unsurprisingly as an MSE student–I’ve always accepted the idea that ascending the ladder of stakeholder engagement is the ultimate goal. Evidently, I suppose it’s important to consider the ways in which community control are realized. In the era of the geospatial web, it’s conceivable that community control through PPGIS would likely require some technical ability on behalf of the community members, perhaps access to the internet or a personal computer. Of course, challenges to the framework arise if the ability to meet these requirements varies between individuals. It’s clear one of the most critical aspects of the public participation GIS framework is the consideration for differential ability to participate among the public.

Thoughts on ‘Doing Public Participation on the Geoweb) Sieber et al. 2016

Sunday, September 24th, 2017

In the case studies outlined in the paper, there were a broad variety of participants. From rural farmers to local governments to academic researchers, they encompassed people from different strata of society. This illustrates what was discussed earlier in the paper about how the geoweb has allowed for non-experts to engage with mapping and geospatial technologies.

There seem to be two different ways to do participatory GIS: to expand the geographical data available to us to manipulate (basic GIS) and the use of GIS to solve a specific problem or attain a pre-determined goal, such as to increase awareness, express identity or establish connections and document history (applied GIS). This observation harks back to the previous GIScience/Tool debate and lends support to the idea that GIS is a science because it is not only used for the latter purpose, and there are questions and problems related to the technology and methods of geographic information obtainment and manipulation themselves.

I found it interesting how the authors pointed out that a digital divide can exist within a community once some members have acquired skills and others have not. This presents a more nuanced picture than that of haves and have-nots, and combined with the observation of how the Geoweb creates “more rungs on the ladder”, shows how there is a gradient of participation and inclusion upon which people can fall. Rather than a binary perspective, it is necessary to see dynamics within participants as continuously changing and shifting with the balance of power and knowledge among government, citizen, academic, and under-represented individual.

Much is said today about disruptive technologies and how certain apps like Uber completely change the prevailing model of the industry which they infiltrate. One can consider PGIS to be disruptive in the sense that it picked apart the hegemony of crown copyright laws in the UK with the advent of open street maps. What unites these two is that in both cases, the disruptive capability comes from the adoption of the app or the PGIS portal/website/tool by the masses.

The example of Argoomap as a geo-referenced discussion engine made me think about how assigning explicit spatial characteristics to all aspects of our lives (thoughts, memories, songs, emotions) might influence the kinds of maps we create, especially with the advances in virtual and augmented reality. It was interesting to note that when volunteering geographic information, people tended to want the representation to be a map, although this may not always be the best way to visualize the information. I wonder if this is because of a cultural familiarity with maps and not due to their inherent superiority for the task at hand: if we were exposed to different methods earlier on, would we represent geographic information differently?

The tension between wanting more responses and wanting meaningful contributions is a difficult one to resolve with respect to PGIS and I think there is a fine balance to strike between making the lowest possible barriers to participation and still ensuring that people are contributing meaningfully.

– futureSpock

PPGIS: A literature review and framework

Saturday, September 23rd, 2017

In this article, Sieber traces a history of PPGIS, engages with the existing literature to create a framework for PPGIS. I found lots of the discussion very interesting, but what I found most interesting was the discussion on the accessibility of data. As PPGIS involves those affected by decision-making in the process, accessibility to data is crucial. I have to admit I have not ever contemplated the definition of ‘access’, though the various definitions show the nuances in the understanding of ‘access’.

While reading the four competing ethics of data availability, I was struck by how each of these positions, and politics, could drastically alter the process of PPGIS. I am also struck with how fluid the boundaries between these ethics can be, and I think that most countries would employ a combination of these approaches to data availability.

An open government would facilitate PPGIS, while any of the other positions would hinder PPGIS to varying degrees. While I mainly agree with the open government position in terms of spatial data, I also understand why personal privacy is important, and can in fact be crucial to a healthy society. Likewise, in terms of national security, it could be important to protect the location of secure facilities. I do have fundamental issues with the fiscal responsibility position, and see this as the biggest hurdle to effective PPGIS (good old capitalism…). Putting a price on public data invariably grants access to resource rich organizations, solidifying a top-down framework of PPGIS. This touches on the notion of the inherent inequality in PPGIS, a subject that I think Sieber does a good job addressing throughout the article.

Thoughts on Sieber et al. (2016) & the future of PPGIS

Friday, September 22nd, 2017

Sieber et al. (2016)’s discussion of Doing Public Participation on the Geospatial Web raises issue with accepting the standard GIS uses in governments as forms of public participation. While this public use seems benign and helpful at first glance, their analysis shows that it is not always this way, and the government-public relationship has remained fairly unchanged by the advent of the public use of the Geoweb.

The field of PPGIS will be particularly interesting as the “digital generation”, or those who have grown up or started from an early age in using the Internet or other virtual devices, ages. As more of this generation reaches voting age (usually when one becomes politically active/conscious) the ways in which government interacts with citizens will change irreversibly, and perhaps the demarcation between government and citizen will blur or mutate as well (as Sieber et al. denoted has only slightly occurred so far).

In addition, the aging of this “digital generation” may eliminate the digital inequality brought on by technological advances. I hesitate to say that it will eliminate this specific inequality, as the “broadening of access” excitedly brought on by technology clearly has not lessened the divides between urban-rural/socioeconomic/age, as Sieber et al. noted, but also between (dis)abilities, in accessing resources virtually. And will web-based tech ever lessen the divides?

Without intervention, lower-income communities or geographically isolated communities may not have access to the web due to lack of financial resources, lack of device availability (to buy or to rent), lack of a platform to connect to, or other such concerns. In addition, technology will always evolve and it will always be “new”, regardless of which platforms or tech or equipment on which the older generation grew up, and the older generation may continue to not have access to teachers or they may not care to learn how to use/benefit from new technologies. Finally, text-to-speech technologies have made advances in connecting sight/audio impaired communities to the Internet, but there remains a lack of access for those with motor skills impairments, for example, which hopefully will be solved with advancements in science. With these persisting issues with web connectivity, public participation through the Geoweb cannot be taken at face value and must be studied more thoroughly through an equity lens.

Thoughts on Goodchild (2010)

Monday, September 18th, 2017

Goodchild concludes his paper “Twenty Years of Progress” by realizing a need for greater interaction between the fields of geography, computer science, and information science in the future of GIScience. Seven years ago, when this paper was written, neogeography was an emerging concept. RFID and GPS location collection operations were still relatively small scale. Goodchild notes the benefits of having such large real-time datasets, as well as the implications such data would have on personal privacy. I’m not sure if Goodchild could have predicted the roles that the private sector would have in advancing location-based technology.

Many datasets that have been collected by tech companies are invaluable to actors in the public sector and academia. Google and Uber data would surely benefit transportation planners, and Instagram geospatial data might be of use to a board of tourism. Goodchild asks the right questions about the future of real-time location data, but today might ask more questions specific to the privatization of such datasets. Are the developers of location-based applications members of the GIScience community? Do they recognize the significance of the geospatial data they are collecting? Or do they seek to make a profit over the advancement of science?

I would argue that in 2017 the actors on the stage of GIScience include much more geographers, computer scientists, and information scientists. Goodchild correctly predicts that the average citizen will become “both a consumer and producer of geographic information,” but fails to mention the elephants, the private tech companies that provide VGI-fed services to the newest generation of smartphone owners. App developers are as much a part of GIScience as the transportation planners that install sensors to measure traffic flow, and the computer scientists that use agent-based modeling to optimize emergency services in the event of a terrorist attack. I hope that academic GIScientists such as Goodchild are changing the way they see GIScience to bridge the gap between private collectors of geospatial data.

Goodchild Discusses GIS

Sunday, September 17th, 2017

Goodchild’s article presents a brief history of GIScience, and discuses from his perspective, and from the perspectives of others, the role of GIS as well as its label as a science. It is important to note that the article leans more towards an opinion piece or a discussion rather than an objective paper to explore questions without reaching any specific conclusion; however, Goodchild does conclude by making the argument that GIScience is well established as a domain of science without risk of being absorbed into related disciplines. Effectively, Goodchild makes claims that are logical and well founded but seems to forget that the conclusions he pulls are framed within an opinion text.

I enjoyed that the other was careful to make the distinction that the arguments made are from a personal perspective. Naturally the article becomes subject to bias; that of a geographer. Personally, I found the article to be convincing and I agree with the statements made while also remaining open and critical about them. The author’s willingness to explore opposing perspectives translates well to the reader and encourages them to do the same. On the other hand, this creates some confusion and makes it more difficult to finish the reading with a firm conclusion of your own.

The lack of clarity regarding the nature of the paper encourage the reader to explore the subject further and pull their own conclusions. I think to be able to better answer the question of whether or not GIS is a proper ‘science’ could be better explored by comparing/contrasting GIS to other fields of science. While interesting, a more in-depth discussion of what counts as ‘science’ is not the primary subject of the paper and could abstract from the rest of the text.

Why the “Tool or Science” Debate Doesn’t Matter

Sunday, September 17th, 2017

The article by Wright et al. discusses how GIS should be recognized and in doing so considers multiple perspectives: what is science, what is GIS, philosophical schools of knowledge and science, the field of geography as a whole, the labels that GIS could be given, as well as why the label matters.

Effectively, I think that the article reinforced my lack of opinion surrounding the question “GIS: tool or science?”. By introducing fine detail and logical arguments supporting both sides of the debate it makes it harder to reach a conclusion. This discussion reminds me of earth system modelling problems; the main ideas can be reduced and simplified to establish a basic system with one or two inputs and outputs each. Regarding GIS, if we use simple definitions for our terms, it is easy to formulate one’s opinion of what GIS is (science vs tool). However, once we try to get further insight, problems of complexity come into play. An earth system model that strives to account for every individual micro-system within the macro-system quickly becomes too complex. in my opinion, that is, to a certain extent, what Wright’s paper accomplished in my understanding off the debate. I now find that it is harder than ever to decide which arguments are the most legitimate as a result of all the contrast. These arguments are not subject to a ‘right’- ‘wrong’/ ‘valid’ – ‘invalid’ position and this leaves the debate open.

But, unlike the earth system example where intricacies add accuracy to the model, examining the intricacies of this debate do not improve results. As I was reading, I asked myself the question “why does this debate even matter?”. If using GIS as a tool or science allows users to gain insight into our world, what matters should be the discoveries themselves; not the debate over the label of science. After turning the page and seeing the section labeled “Why Does Science Matter?”, I felt like I wasn’t going to be getting the answers I might have hoped for. The author makes the claim that the role of science does matter. This claim, although passive, leads me to believe that the author believes that the ‘Science’ label is important to him and the legitimacy of the field. However, the legitimacy of GIS related discoveries and theories should be founded in their truth, accuracy, and acceptance of peer. Even though interesting, the debate over the label of “Science”, does not improve nor degrade the quality and usefulness of the results of any GIS related project.

Twenty Years of Progress, Goodchild (2010)

Sunday, September 17th, 2017

Goodchild (2010) provided an interesting summary of the innovations in GIScience since its first conception. I appreciate the discussion of what innovation looks like in a field that is so intensely interdisciplinary. I feel that Sara Fabrikant’s interpretation of “discoveries” in GIScience as “enabling the discovery of the world” also appropriately captures the interdisciplinary nature of GIScience research implications.

In the 7 years science the article was published, I wonder how successful we’ve been in addressing Goodchild’s fifth challenge of the decade: the challenge of education. He writes that in the first twenty years since the conception of GIScience there has been a transition in the approach to education toward GIScience literacy in the general public. Still, most of my technical GIS education has been with software otherwise locked behind costly licenses or affiliation with wealth institutions. I’d imagine this approach serves to reinforce a knowledge gap between those with access and those without.

Perhaps it’s because of a lack of suitable alternatives, and I can’t speak to the experience of students at other universities, but I think it’s at least indicative of some vestige of educating a professional elite in GIS education. Of course, universities have some duty to endow students with employable skills. I suppose another challenge in GIScience will be to provide students with a knowledge of industry standards without perpetuating a culture differentiated expertise based on resources.

Core Concepts of Spatial Information (Kuhn, 2012)

Sunday, September 17th, 2017

In the paper “core concepts of spatial information for transdisciplinary research”, Kuhn(2012) demonstrates the importance of spatial information across disciplines and proposes ten core concepts for non-specialists to understand it. When reading it, we should question about whether Geographic Information Sciences (GIS) have to be transdisciplinary, and whether these ten core concepts are helpful for those kinds of research.

According to Kuhn(2012), spatial notions are the basis of transdisciplinary approaches. The example of the Amazon deforestation proves his statements which I agree with. In other words, we can regard spatial information as integrators to connect different disciplines. However, I would doubt that the ten core concepts are useful enough for people outside of GIS.

Non-specialists need to understand and apply these concepts in their practices. Therefore, the chosen concepts should appropriate for their use. Hence, I’m interested in the objects of the survey conducted by the author. Whom or what projects it refers to? What disciplines are involved? Does the information mainly provided by GIS-related practitioners or researchers? Answering these questions may help us know how useful the concepts could be for non-specialists. Besides, some of the descriptions of concepts are straightforward enough, while some are confused. For non-specialists, the isolate description of “field”, “object”, “meaning” or “value” is not able to make them well-understood. For example, “neighborhood” can be thought as a region, “field” also. “Field” can answer what is here, “object” also. “Meaning” and “value” sometimes may refer to the same thing. Non-specialists still have few concept of these “core concepts”. Unless, there is more discussion about the relationships among core concepts, the situation may be improved. That said, it is necessary to organize these core concepts so that they can be understood accurately. In conclusion, Kuhn notes that core concepts should be formalized into an ontology when use, but it remains to be asked whether we can have them more structured in ahead of the practice.

GIS: Tool or Science, Wright et al. (1997)

Sunday, September 17th, 2017

Initially I had some trouble appreciating the importance of the debate summarized by Wright et al. (1997). The discussants bring up some interesting points about the nature of science, but I’m curious about how productive the conversation can be beyond the need for some scientists to act as gatekeepers. Particularly in the sense that the science/non-science dichotomy, as noted by the authors, “presumes the superiority of one or another approaches to generate knowledge.” I was reminded of how similar discourse in the field of environmental science has been used to delegitimize traditional ecological knowledges–”similar” in how the discussants try to incorporate the concept of GIS into their own understanding of science, not necessarily in the context or implications of the discussion. I’m not so sure that science lends itself to such unambiguous ingroup/outgroup designations. I can, however, appreciate the very real challenge of securing research funding and by extension the need for asserting academic legitimacy.

I think how some discussants so boldly assert their opinions really demonstrates how strongly our ideas are shaped by our world view. For example, the argument that GIS is analogous to math and statistics and therefore not science is less compelling without the assumption that math is not a science. I was eager to see the authors draw the comparison between GIScience and computer science, which arose with the development of digital computing, a powerful tool for processing information. I imagine now few would question its place as a shining example of STEM-hood.

Goodchild (2010)’s reflection on 20 years of GIScience Progress

Sunday, September 17th, 2017

I found Goodchild’s argument refreshing, as it encompassed all the issues that I felt were present (but relatively left unsaid) during my time learning how to use GIS software. His discussion of the achievements of GIScientists (like Tobler’s First Law (“nearby things are more similar than distant things”) and Anselin’s spatial heterogeneity) really helped me to better understand the difference between GISoftware (tool) and GIScience. It became clearer to me that GIScience is its own domain, which helps it find applications in both theoretical and technical fields, including but not limited to computer science, economics, politics, and marketing/business.

He also acknowledged what I have found worrying about geography academia– the tendency of scholars to look solely to academia to bolster their argument.  In my experience, the papers that look solely to academia to make their claims papers end up rehashing the same arguments, not offering any new or terribly groundbreaking ideas. It is one thing to refute arguments and conduct new hands-on research into phenomena, but many that I have experienced as a liberal-arts undergraduate student rephrase and slightly elaborate on claims that have already been made, which Goodchild calls “problematic”.

Finally, Goodchild’s observations on the “future of GIScience” are very well thought out and many of his questions remain unanswered today. I was particularly interested in his discussion of user-volunteered data, particularly about the social strata of data volunteers as well as their motivations to collect and provide this data. I am particularly interested in participatory planning practices, and today, many of the ways of collecting public input involves some iteration of online surveys. Many towns– including my small (and fairly technologically challenged) hometown– conduct surveys which take longer than 30 minutes, requiring users to place points on online maps or drawing lines on online maps to show commonly taken routes, for example, in order to plan for a better use of space. Goodchild asks: who is actually volunteering this data, and why? I think some question that also need to be asked are: Who is not volunteering this data, and why? Does the lack of technology or time or interest (or, more likely, a combination of the three) dissuade everyone from volunteering this information? And how could those who do not volunteer this information (the elderly or others who do not own personal computers, people who work over 40 hours per week) provide this information in another way? Even 7 years after the publication of this reflective article, information about data volunteers is rarely studied (though sometimes in these surveys, this data is collected/volunteered) and therefore efforts to be more encompassing are often in name only.

Kuhn (2012) – Core concepts of spatial information

Sunday, September 17th, 2017
Kuhn’s argument is structured around central questions we can ask about spatial information: where is it located, what is it near to, what else is there, what are its properties, what is it connected to, how has it changed over time, how precise/ correct/ valuable is it? Scale, uncertainty and visualisation are presented as overarching themes, covering ten core concepts. Does this provide are fair representation of the field, and what does it do to address the obstacles of interdisciplinary research?
I found Kuhn’s list of questions the easiest way to navigate a paper which was (perhaps necessarily) conceptually dense. These provided a strong starting point for thinking broadly about spatial information. Similarly to Mark’s paper, the author characterises their area of interest by breaking a core idea down into its constituent parts. While ten is a nice round number, I would argue that some important areas might be more explicitly represented. Namely, concepts which answer the questions of how is spatial information perceived, why it is produced and who produces it.
A basic, but key challenge to the exchanging of ideas across different fields is language – each has its own set of definitions, syntaxes and assumptions. Interdisciplinary work must therefore seek common ground and anticipate potential sites of conflict. This paper communicates to the GISc community and makes some suggestions as to how this community might function to map between other disciplines. Perhaps the ideas could be made clearer for other audiences by relating back to some of the examples given in the introduction (e.g. biodiversity, climate change, poverty), or by further discussing applications of the core concepts in other fields.
-slumley

Mark (2003) – Defining GISc

Sunday, September 17th, 2017
In this paper, Mark characterises the emergence of Geographic Information Science (GISc) as a field of scientific inquiry, building upon previous definitions in a call for consensus among researchers. As an influential, early proponent of GISc, the author makes assertions about what constitutes GISc (spatial ontology, representations/ indices of geographic data, spatial cognition, human/ machine interaction with geographic information etc). The paper is also speculative, seeking reaffirmation from others in the field to help establish a concerted vision for GISc.
Nearly 15 years after publication, we might ask how well these definitions hold. In this time, important new actors have changed the way we collect, contribute and interact with spatial data. For example, smartphone users are able to efficiently search rich geographic databases (like Google Maps) for information relevant to them, in exchange for their own (partially) anonymised data. This widespread adoption of new technologies perhaps requires an even larger diversity of interdisciplinary work than anticipated by Mark, with issues of geosurveillance, privacy and big data necessarily introducing perspectives from law and data ethics. These developments have also changed who GISc is done by and done for – academics, governments, companies, citizens?
I would argue that GISc has securely established its place as a legitimate scientific discipline (it has its own Wikipedia page). Funding is an interesting proxy for legitimacy raised by Mark and other bloggers, and was certainly important during GISc’s infancy for addressing a research agenda, establishing networks/ standards through GISc organisations, and training students.  Over the last decade, there has been huge investment and contribution towards geospatial resources outside of academia, from private companies (Google, Facebook) and other social platforms. Has this further legitimised GISc as a field of research – both in leading development of new technologies, and by providing new research areas for GISc?
-slumley

Core concepts, Kuhn (2012) – Nice to have?

Sunday, September 17th, 2017

I found the overall article creates more complexity than simplifying the proposed concepts. If the target of the article is to communicate the opportunity of interdisciplinary integration, I find the language used to express Geospatial Information’s primitives (and cores) too complex if not supported by pragmatic and clear examples.

In reading the article I question why the metadata concept is not part of the core discussion given the fundamental roles it plays in information and moreover in the geospatial domain. This concept could have been elaborated in the accuracy section.

The author provides an unequivocal interpretation of the core components in Geospatial Information. That said, he also let me think that in a society driven by a strong economical drive, measuring the economic value of Geospatial Information is complex and difficult to estimate.  So how can we estimate its impact on the budget planning of a project based activity?

This gap suggests me that the Geospatial Information could remain in the ‘Nice to have’ basket when planning project’s resource investment (which the primary focus in not Geospatial Information).

Lastly, because things change constantly, I am still debating where the concept of time sits in the Geospatial Information realm. Is it a core element or should it be considered an external factor?

– Giancarlo –