Shikakeology: Designing Triggers for Behavior Change: Papers from the 2013 AAAI Spring Symposium Shikake as Affordance and Curation in Chance Discovery Akinori Abe Faculty of Letters, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan ave@ultimaVI.arc.net.my Abstract In chance discovery, in the curated environment we can properly collect affordance. I will discuss later but a chance and shikake are in a certain sense similar. That is, a shikake exists in an environment, and if it is applied to us we can change or proceed our activities for the better future. A chance will be exist in an environment, and by discovering it we can proceed to the better future. Thus the curated environment can be regarded as an environment equipped with a shikake. According to the policy of chance discovery, curation will be performed implicitly, but shikake can be explicitly and implicitly placed. This point is not the same as in chance discovery and shikakeology. Shikakeology and chance discovery seem to have a certain relationships. In this paper, I, first, illustrate the chance discovery scheme which I recently have proposed. Then I discuss the relationships between chance discovery and Shikakeology. In this paper first I introduce curation and affordance in chance discovery. According to Matsumura’s definition, a shikake is a trigger to start a certain action or to change person’s mind and behaviour. As a result of the action, all or part of problem will be solved. A chance and shikake are in a certain sense similar. In addition, affrodance seems to play a significant role in shikakeology. From the point I will discuss the relationships between chance discovery and Shikakeology. Introduction In our surroundings, we can find many things. If we find a chair, we can sit down it and take a rest. If we are tired, we try to find something to sit down. But even if we are not so tired, when we find a chair, we will sit down. That is, when we find such things we sometimes change our mind and activities. Then such things can be regarded as a trigger to our new activities. Matsumura focuses on such triggers (he calls it shikake) to explain various situations. He proposes shikakeology which discusses the feature of a shikake. Sihakeology is rather new research field, and many researchers gave several approaches. We are studying chance discovery for more than 10 years. A chance is rare, hidden, potential or novel event(s) / situation(s) that can be conceived either as a future opportunity or risk (Ohsawa and McBurney 2003). Thus chance discovery means discovering rare, hidden, potential or novel matter(s) which will lead the user to the better future. Several discovery strategies have been proposed in these 10 years (for instance strategies in (Abe 2010b)). In addition, in the context of chance discovery, I proposed rather different scheme for discovery. That is, I proposed the scheme how to display chances. I introduced a concept of curation (Abe 2010a; 2011; 2012c) and affordance (Abe 2009; 2012b) to chance discovery. Detailed explanations are given in the following sections, but here I briefly explain it. That is, a chance is discovered with a guidance of affordance. In addition, curation offers a hidden or potential assistance to chance discovery. That is, I did not propose a discovery strategy but a discovery environment. Curation This section reviews various types of curation. Actually “curatorial task” is usually performed for tasks in (art) museum. Many cases introduced in this section are curatorial works in gallery and (art) museum. In addition a new type of curation, digital data curation, is also reviewed. (General) curation There is at least a person who is responsible as “curator” in (special) exhibitions, galleries, archive, or (art) museums. Their main task is a curatorial task, which is multifaceted. Curator comes from a Latin word “cura” which means cure. Then originally it used for a person who take care of a cultural heritage. In the report by American Association of Museums Curators Committee (AAMCC) (of Museums Curators Committee 2009), they pointed out “curators are highly knowledgeable, experienced, or educated in a discipline relevant to the museum’s purpose or mission. Curatorial roles and responsibilities vary widely within the museum community and within the museum itself, and may also be fulfilled by staff members with other titles.” Then they showed the definition of curator as follows; • Remain current in the scholarly developments within their field(s); conduct original research and develop new scholarship that contributes to the advancement of the body of Copyright c 2013, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved. 2 • • • • • • • • • • • knowledge within their field(s) and within the museum profession as a whole. Make recommendations for acquiring and deaccessioning objects in the museum collection. Assume responsibility for the overall care and development of the collection, which may include artifacts, fine art, specimens, historic structures, and intellectual property. Advocate for and participate in the formulation of institutional policies and procedures for the care of the collection that are based on accepted professional standards and best practices as defined by AAM, CurCom, and other relevant professional organizations. Perform research to identify materials in the collection and to document their history. Interpret the objects belonging or loaned to the museum. Develop and organize exhibitions. Contribute to programs and educational materials. Advocate and provide for public use of the collection. Develop or contribute to monographs, essays, research papers, and other products of original thought. Represent their institution in the media, at public gatherings, and at professional conferences and seminars. Remain current on all state, national, and international laws as they pertain to objects in the museum collection. Bacon usually painted a flesh of human beings most of whose parts are removed to express the essence of human existence. However, in the catalogue of the exhibition “Bacon and Caravaggio,” at first, Coliva wrote “This exhibition proposes a juxtaposition of Bacon and Caravaggio. It intends to offer visitors an opportunity for an aesthetic experience rather than an educational one... (Colvia 2009).” Then Coliva continued “An exhibition of generally conceived and prepared with a historicist mentality, but when it materializes, the simultaneous presence of the works — in the sense precisely of their hanging — opens up parallels and poses very complex and spontaneous questions, which may even be unexpected and not all stem exactly from questions initially posed by art-historical motives and theses. There are parallels that appear by themselves to the visitor’s sensibility and are not imposed by a theory of the curator. This is certainly one aspect of the vitality of exhibitions, which make the works live and in this are necessary for the works. The display itself, in the sense of the presentation of the works that appear in an exhibition —the spectacle of their being on display — creates trains of thought that are independent of the interpretations provided by art-historical scholarship. And since for a profound experience of understanding a work these ramifications sometimes are more surprising and significant than the achievements of a specialized scholarship in its own field of action, an art raised to the status of an enigma like Bacon’s seems to require the gamble of provoking these parallels. And since at the time, and again because of its qualitative greatness, Caravaggio’s art deserves a similar provocation, the juxtaposition thus satisfies a legitimate aesthetic desire. On the other hand, the juxtaposition is a modest and prudent solution, not so much for demonstrating, but for offering the attribute of “genius” — which the expressive common language attributes to the great artist of the past — opportunities to manifest itself. And the juxtaposition is induced by the Galleria Borghese itself, one of the most sensitive spaces with the simultaneous presence of genius.” In addition, AAMCC showed curatorial responsibilities as follows; A: B: C: D: E: Research, Scholarship, and Integrity Interpretation Acquisition, Care, and Disposal Collection Access and Use Replication of Objects in the Collection Thus curators have responsibilities for various aspects of exhibition activities. However, the most important activity will be a plan of exhibition. For that the above activities such as research, interpretation and acquisition are necessary. They should properly exhibit a truth which is result of their researches and interpretations. Exhibition “Bacon and Caravaggio” Besides the importance in aesthetics and philosophy, I think the most important point is that “There are parallels that appear by themselves to the visitor’s sensibility and are not imposed by a theory of the curator.” That is, though actually a curator has a certain philosophy, he/she does not insist his/her philosophy but audiences will be able to discover additional meanings as well as the curator’s intended philosophy. An exhibition “Bacon and Caravaggio” was held in Museo e Galleria Borghese, Roma, Italy during October 2 2009 and January 24 2010. The display policy of this exhibition is rather different from that of general special exhibitions. First, the special exhibition was not separated from the space for permanent collections. Of course several Caravaggio’s works were exhibited in their original places. The other Caravaggio’s works and Bacon’s works were exhibited between permanent collections. For this type exhibition, usually an exhibition is educational and two painters are compared in various viewpoint, for instance days and society painters lived. Before arriving at the exhibition, my expectation was that it would be an exhibition to address the contrast between the drawing policies of Bacon and Caravaggio. Caravaggio usually painted a perfect body of human beings. On the other hand, Exhibition in the Museum of University of Tokyo In the museum of University Tokyo, they tried a unusual and tricky exhibition style. Where no panel for explanation is displayed. A director (curator) Endo pointed out that “We have intently organized a space without introduction, information, and educational objective. When audiences watch dead bodies which used to have lives and activities, they will conceive an importance of lives (Miyadai 11 March 2010).” 3 In the above exhibition, small number of explanatory panels have been provided. However, in this exhibition, no explanatory panels is prepared. Actually, for (archaeological) museums specialized information will be necessary as basic knowledge or educational knowledge. However sometimes reading such panels requires much times to audiences and removes opportunities of deep understandings of exhibitions from audiences. In the worst case, audiences do not watch displayed things but only read explanations. Thus properly few information gives audiences a chance of thinking and deep understandings of the exhibition. Thus as shown above, originally a curation was an activity for offering an explicit education to audiences. However a contemporary curation offers audiences a certain freedom or opportunity such as deep thinking and new discovery, which can be regarded as a chance. Sometimes a situation without information or with a few information offers us chances which might become important factors for our future. Curation should be performed with considering such implicit and potential possibilities. In addition, such possibilities should be rather easily discovered and arranged according to the user’s interests and situations. only by a viewpoint such as search keyword, place and program but also by the specialized person’s sense of value and world view. His viewpoint is based on Social Network System (SNS), then his curation can be regarded as a generation of explicit, multi-core circle type, and indefinite relationship supported by social media. Katsumi Katsumi seems to extend a task of curation in museums. He uses a framework of a curator’s task. He illustrates a curator’s task is as follows (Katsumi 2011): 1. Reconsider meanings of existing works etc. 2. Select contents and add relationships to them. 3. Offer a new meaning and value to customers. He compares a river model with a well model in recognition of customer’s needs in business world. In a river model customers are on the opposite side of a river. (information) providers, based on their previous experience, existing concepts, and various sorts of surveyed data, expect customers’ position and throw a ball. In a well model, if providers dig their own well, they will discover a new underground stream and it might be connected to customers’ underground stream. In this underground stream potential needs which customers are not aware exist. Katsumi illustrates a new curation model in business based on innovators’ successful examples such as the strategy of Seven-Eleven. Curation in business and information market In 2011, several books on curation were published. In Japan we had at least two publications which I noticed by Katsumi (Katsumi 2011) and Sasaki (Sasaki 2011). In addition, Rosenbaum published “Curation Nation” (Rosenbaum 2011) in the same year. They discuss a “curation” in “business” and information market field. I do not know why in 2011 such publications on (information) curation appear simultaneously. Rosenbaum Rosenbaum gave features to curation as follows (Rosenbaum 2011): Curation comes in many shapes and sizes. It is critically important to understand two things. First, curation is about adding value from humans who add their qualitative judgment to whatever is being gathered and organized. And second, there is both amateur and professional curation, and the emergence of amateur or pro-sumer curation isn’t in any way a threat to professionals. He continued that “Curation is very much the core shift in commerce, editorial, and communities that require highly qualified humans.” Accordingly he mainly discuss curation in the field of magazine and networks. He characterizes curation as the future of consumer conversation. He mentions that “as curated customer conversation take hold, there will not be a brand, a service, or a company that will emerge to give feedback and filter customer reaction to goods and services. [...] Indeed, reasonable and balanced communities curated to be about honest feedback and customer solutions will emerge as a new and powerful force in consumer-and-brand interaction.” In addition, he seems to extend curation tasks to quite different type of jobs, for instance DJ. His definition of curation seems to cover quite a large field. At the end of (Rosenbaum 2011), he states “We are all curators. We all will be sharing into the ecosystem of our friend and families. For some, it will become part of who we are. And for a few of us, curation will become our livelihood. It’s exciting for me to see that we’re turning a corner. The network is built. The data center are in place. The next step will involve the human piece of the equation—humans are more-valuable machines.” Sasaki Sasaki defined curation in (Sasaki 2011) as follows: Curation: From huge amount of information source, according to the curator’s sense of value and world view, picking up information, giving a new meaning to it and sharing it with many persons. Sasaki used a metaphor of biotope1 to illustrate the promotion of a unknown or less known but a good artist. His main point to successful promotion is to recognize: • Where those who need a certain information live? • How to offer the information to those who need the information? • How to make them impressed by the information? He gave a metaphor the place where those who need a certain information live as a biotope. Actually strategies he illustrated are very intentional because they are business that should be successful and that were succeeded. In addition, he pointed out the importance of a human as a media. That is in order to generate sympathies, there should be a certain context and the context will be generated (aware) not 1 Biotope is an area of uniform environmental conditions providing a living place for a specific assemblage of plants and animals. Biotope is almost synonymous with the term habitat, but while the subject of a habitat is a species or a population, the subject of a biotope is a biological community. (from Wikipedia) 4 Curation in business? A “curation” for business in the internet age seems an interaction between customer (user) and goods. There will not be a system to insist trends from big companies, but trends will be constructed or selected according to customers’ interaction on (inter)networks. In addition, a (small) company or community can use this system to give rare goods a certain trend. Thus the strategy of information delivery in business has changed in recent year and they call this type of information delivery as “curation.” Curation in business means not only an information display system but also an information delivery strategy. The above interface based application can be classified to curation type applications. Is curation chance discovery? My experience in a market store2 can be regarded as a type of chance discovery application, because the strategy generated a hidden or potential purchase chance to customers. Customers who were inspired by the combination of chicken and asparagus would have bought either or both of them for dinner. Actually, this is not a task in museums, but it can be also regarded as a curator’s work (curation). Because the strategy includes philosophy in a combination of items, and based on the philosophy it will offer certain effects or education to audiences. Visualization strategies such that referred to above function as curation. Because they display candidate chances in a manner where important or necessary items or events can be easily or interactively discovered by the user. Curation in chance discovery In (Abe 2010a; 2011; 2012c; 2012a), I proposed curation in chance discovery. In this section, I review the concept and definition of curation in chance discovery in the followings. Chance discovery Curation of the business situation in the internet age Though in various articles, the definition of a “chance” is described which was introduced by Ohsawa (Ohsawa and McBurney 2003), I wish to introduce it here again. In fact, it rather differs from the original definition in (Ohsawa and McBurney 2003) to reflect the recent research interests. In the previous sections, I illustrated several curation in business and chance discovery. I summarized that a “curation” for business in the network age seems an interaction between customer (user) and goods. There will not be a system to insist trends from big companies, but trends will be constructed or selected according to customers’ interaction on networks. In addition, a (small) company or community can use this system to give rare goods a certain trend. That is, no curation is directly performed by a “system manager.” Instead a “system manager” tries to use a certain community effectively. A “system manager” provides a certain information to those who will be interested in it. The information will be shared in the community and sometimes it will be delivered to other communities having the same or similar interests. There exist a certain intention, but the feature of curation is rather vague and changeable. Perhaps the task as a curation is to offer a certain environment for communication among customers. Thus generation of customers communication is important in this type of curation. Akiyama and Sugiyama discussed holistic communication in advertising (Akiyama and Sugiyama 2004). In a holistic communication, an advertiser seeks active consumers and makes them a sort of hub from which a lot of information will be delivered and exchanged to other consumers (B to C to C model3 ). Such an active consumer usually offers good opinion or information which is believed as a better news source by many other customers and is sometimes a charismatic consumer. This model is similar to the above curation strategy (by Sasaki). A chance is rare, hidden, potential or novel event(s) / situation(s) that can be conceived either as a future opportunity or risk. Then “chance discovery” research is a type of research to establish methods, strategies, theories, and even activities to discover a chance. In addition, it aims at discovering human factors for chance discoveries. Therefore not only researchers in computer science and engineering but also researchers with different expertise such as psychologists, philosophers, economists and sociologists take part in chance discovery research. Thus it is very important to offer opportunities where receivers can feel and obtain chances in various situations. Many applications on chance discover have been proposed in these 10 years (Abe 2010b; Ohsawa and Tsumoto 2006). For instance, visualization systems for making users aware of unconscious preferences (Amitani and Edmonds 2010; Maeno and Ohsawa 2010), an analogy game which varies a construction of concepts according to perceptions, categorizations, and areas of focus derived from the expertise of the observer (Nakamura, Ohsawa, and Nishio 2010), a deposit overflow determination system to prevent various financial crises (Yada, Washio, and Ukai 2010), ISOR-2, a combination of case-based reasoning and statistical modeling system which can deal with medical exceptions (Vorobieva and Schmidt 2010), and a web-based interactive interface which can check hidden or rare but very important relationships in medical diagnostic data sets (Abe et al. 2010) have been proposed in (Abe 2010b). Those applications are real world applications where a discovery of chances plays an important role. However, strategies how to display chances have not been discussed in many applications. Strategy for discovering chances is of course important. In addition, strategy for an easy discovery interface of chances is more important. Curation in chance discovery Actually curation in business is rather different from that in chance discovery. For instance, the curation in business explicitly aims to show rare or hidden but important matters to 2 Meats (chicken) and asparagus were sold together. The other vegetables were not sold there. 3 B: business, C: customer 5 consumers. In the strategy, they seek a central or key person to give information and expect that he/she will deliver the information according to his/her interpretation or criterion. This type of interpretation or criterion is very trustful and general customers tend to believe the (filtered) information. In chance discovery, however, we do not perform such an explicit activity with intentions. Instead we try to hide such intentions and adopt implicit strategies. Because we think such implicitness will offer users a certain freedom of deep thinking and possibilities. However, communication is also an important factor in chance discovery. Because curation is a type of communication between curator and audiences. Accordingly, the strategy in business can be referred to in chance discovery. For the original version of the curation in chance discovery (Abe 2010a) I did not consider the effect of communication among audiences. I defined curation style for individuals. A curation in business has a strategy to use the effect of communication among communities. Of course the strategy was introduced to expand the area of information delivery. A cuation in chance discovery does not aim such strategy, but communication among users is very important to reorganize or improve their thinking. In addition, sometimes even new idea might appear. For instance, in (Ohsawa and Nishihara 2012) and continuing researches, the effect of communication among participants is reported and discussed. This type of communication is thus important in chance discovery. In addition, the other type of communication can be considered. I think another type of holistic communication4 shown above can be effective in chance discovery. That is, a key person, matter, thing or event plays a role as a media or guidance between curator and general or novice audiences. This type of key person, matter, thing or event functions as a hub of communication. That is, it sometimes functions as a help or a guidance to discover chance. Such discovery is sometimes achieved by a certain communication among users. In addition, such discovery strategy might be learnt by referring to the other’s activities. Of course no explicit intention should be displayed from curators. Of course interpretations of the keys by users are free. Rather such free interpretation should be encouraged. Then various chances according to users situation or interests will be discovered, generated or selected. Accordingly such keys function as a guidance of affordance. For instance, yellow marks in a type of interface shown in Figure 1 will function as keys. Actually the mark might be intentional, but if several marks in the same size and shape are provided close to the place to be focused, it will function as a certain assistance for novice persons. If we provide additional marks in the place which are rather different from that to be focused, they probably function as certain influences or disturbances but offer users possibilities of an active or deep thinking. In addition, they can be removed for experts. Of course a decision of how Figure 1: Result from Kamishibai suggestions (yellow colored marks) KeyGraph R with many marks should be provided will be one of problems. If there were too many marks, they might disturb users appropriate selection and thinking procedure. Accordingly curation in chance discovery can be defined as follows: [New definition of curation in chance discovery] • Curation is a task to offer users opportunities to discover chances. • Curation should be conducted with considering to offer implicit and potential possibilities. • Chances should not be explicitly displayed to users. • However, such chances should rather easily be discovered and arranged according to the user’s interests and situations. This can be achieved for instance by affordance. • There can be a certain holistic communication environment. This type of holistic communication might function as media to discover chance for novice users. • There should be a certain freedom for user to interpret a key person, matter, thing or event, which should only stimulate or assist users’ thinking procedure. • There should be a certain freedom for user to arrange chances. The effect and assistance of (holistic) communication and affordance in chance discovery is added to the new definition of curation. By addition of (holistic) communication, during chance discovery users will be able to have the other (perhaps better) opportunity compared with a solo chance discovery. Perhaps new task for curator is how to determine an implicit “hub” in holistic communication which will assist chance discovery. For curatorial task, a serious problem is pointed out. Magnani and Bardone introduced an idea of chance-faking as a possible outcome of the activity of chance-seeking (Magnani and Bardone 2010). They discussed the problem by illustrating the idea of bullshit introduced by Frankfurt (Frankfurt 2005) as an activity promoting fake chances. 4 In a holistic communication, an advertiser seeks active consumers and makes them a sort of hub from which a lot of information will be delivered and exchanged to other consumers (B to C to C model (B: business, C: customer). 6 Compared with lie, they illustrate the problem in bullshit. Since a lie is not informatively empty, people have various mechanisms for detecting lies. On the other hand, a bullshit (fake) can be a semantic attack which is concerning with the manipulation of the meaning a person assign to something that he is going to use in his/her decision-making process. That is, a bullshit has no intention to cheat and be logically true. Accordingly, it is rather difficult to determine it as a fake. It will be necessary to be careful of such chance-faking situation or provide a mechanism to detect such chancefaking situation in curation. Object [ af f ordance |= meaning (1) Object [ af f ordance 6|= 2 (2) That is, affordance can be regarded as a hypothesis from abduction. We can select consistent affordance (equation (2)) in the environment (hypothesis base) to explain the meaning. For chance discovery, in (Abe 2012a) I also showed the following formulae with considering the effect of affordance: Affordance in chance discovery F [ chance [ af f ordance |= f uture situation. In (Abe 2009) and (Abe 2012b) I proposed an introduction of affordance to chance discovery as a dementia care situation. I also discussed the relationship between chance discovery and affordance. In this section, I review the relationship between chance discovery and affordance. (3) F [ chance [ af f ordance 6|= 2. (4) The above formula shows that with referring to a guidance of affordance, chance will be effectively and properly generated. Actually, the same framework (abduction) is used in both formalization. The above definition involves the effect and assistance of holistic communication and affordance in chance discovery. By addition of holistic communication, during chance discovery users will be able to have the other (perhaps better) opportunity compared with a solo chance discovery. Affordance Gibson ecologically introduced the concept of affordance for perceptional phenomena (Gibson 1977; 1979). It emphasizes the environmental information available in extended spatial and temporal pattern in optic arrays, for guiding the behaviors of animals, and for specifying ecological events. Thus he defined the affordance of something as “a specific combination of the properties of its substance and its surfaces taken with reference to an animal.” For instance, the affordance of climbing a stair step in a bipedal fashion has been described in terms of the height of a stair riser taken with reference to a person’s leg length (Warren 1984). In the context of human-machine interaction Norman extended the concept of affordance from Gibson’s definition. He pointed our that “...the term affordance refers to the perceived and actual properties of the thing, primarily those fundamental properties that determine just how the thing could possibly be used. [...] Affordances provide strong clues to the operations of things. Plates are for pushing. Knobs are for turning. Slots are for inserting things into. Balls are for throwing or bouncing. When affordances are taken advantage of, the user knows what to do just by looking: no picture, label, or instruction needed” (Norman 1988). Thus Norman defined affordance as something of both actual and perceivable properties. Accordingly his interpretation has been effectively introduced to interactive designs. In the case of Norman, affordance should be installed correctly, but in the case of Gibson, affordance is searched and obtained by the user according to his/her preference. Matsumura’a affordance is rather similar to Norman’s affordance. I proposed the guidance of affordance in chance discovery (Abe 2009; 2012b). Where affordance is ecologically selected and obtained for the better understanding. Actually it focused on a dementia care situation, but the strategy can be applied to general situations. Anyway, in this application affordance is not installed explicitly, but affordance is aware of and obtained by the user to understand the function of tools. The affordance selection process is logically described as follows: Shikakeology as chance discovery What is a shikake? According to Matsumura’s definition(Matsumura 2012), a shikake is a trigger to start a certain action or to change person’s mind and behaviour. As a result of the action, all or part of problem will be solved. It sometimes is not the person’s will. Thus as shikakeology, such operation should be conducted implicitly. Matsumura continues that shikake should be properly designed. That is, the relationship between a problem to solve and a trigger to action should be properly designed. In addition, Matsumura uses a keyword “affordance” to explain such trigger. Actually Matsumura distinguish psychological design from material design, but I think it can be discussed together. Shikakeology as chance discovery Shikake Key concepts shown in chance discovery are very similar to those in shikakeology. In fact, a chance is a rare and novel event. In addition, we mainly deal with hidden or potential events in chance discovery. Chance itself is not easy to discover, because it is usually hidden or out of our scope. Shikake may sometimes easy to discover, because it functions as a trigger. If the trigger is difficult to discover, we cannot proceed our action. For instance, if we cannot find an AED (Automated External Defibrillator) apparatus and cannot find or understand any instruction, we cannot save illperson. Thus it should be explicitly displayed and its instruction should be easy to understand. I think an AED apparatus can be regarded as a shikake. Because it is a trigger to save a person. On the other hand, as an entertainment, shikake should be difficult to discover. For instance, in a zoo or Disney Land, there are many shikake which lead us interesting 7 events. If they are easy to discover, part of enjoyment will be removed. Thus such shikake should be hidden and are rather difficult to discover. If they cannot find the shikake, they will be back to zoo or Disney Land to find such shikake. Even if they can find it, they will be back for another enjoyment. Thus shikake can be categorized into two — an explicit shikake and an implicit shikake. In addition, they can also be categorized into intentional shikake and non-intentional shikake. An example of an explicit shikake is an AED apparatus. In the sense of Norman (Norman 1988), they should be designed properly. That is, it can be discovered easily and used few or without any instructions. In the other phrase, we can easily collect a proper affordance from it. Usually an AED apparatus is placed where anybody can be aware of and has a big label showing this is an AED apparatus. An example of an implicit shikake is, for instance, hidden Mickey (Fig. 2) in the Disney Land. In order to discover the hidden Mickey, people run around the Disney Land. During searching, they may discover the other interesting things. Of course, when they can find the hidden Mickey, they will be happy. Thus hidden character functions as a trigger to such activities (search and run). By this trigger (shikake), they can enjoy the Disney Land more than a simple tour in the Disney Land. Yorker very refreshing. It is like an empty glass, nothing but wheat, or is it corn? Does it matter which?” He used a metaphor of a glass which seems a shikake. A glass is a container and has many possibilities. It will accept anything (=interpretation). The place where a player plays something, the player plays nothing. This is an implicit shikake and some audience will be aware of such shikake. In the first performance, many audience could not be aware of such shikake. Only few person such as Stravinsky was aware of such shikake and enjoyed it. Various interpretations to the performance would be generated. In the case of implicit shikake, sometimes such a case will occur. But it is not a serious problem. We will be able to enjoy it next time. Thus for instance, many persons visit to Disney Land repeatedly. However if person misunderstand the shikake, it might be a problem. Shikake and curation Curation can be regarded as a strategy of the information display. Shikake can also be regarded as a strategy to lead us information. In the usual curation, information display is designed for audience to understand information easily. The curator’s knowledge can be transferred to audience by his/her curation. By a shikake, the staff will not directly transfer his/her knowledge to the audience, but by a trigger of shikake, their knowledge will be transferred to the audience. Thus a shikake will be provided in some case in curation. Shikake and affordance From the viewpoint of the concept of affordance, a shikake is in an environment and give a certain affordance. When we can collect the affordance properly, the shikake functions and we can proceed to the next stage. A shikake is a controller for the affordance selection. By being awared of a shikake, we can be lead to proper affordance source to collect it. For instance, if people are aware of affordance from an AED apparatus or hidden Mickey which are shikakes, we can collect proper affordance which shows that an AED apparatus can save person’s life or a hidden Mickey is very interesting and enjoyable. That is, they select a proper affordance according to their better benefit. Thus shikake can be explained by the concept of affordance. Figure 2: Hidden Mickey Shikake and chance In the previous section, I introduced the importance of affordance in chance discovery. In addition, I show that shikake can be explained by the concept of affordance. A shikake exists in an environment, and if it is applied to us we can change or proceed our activities for the better future. A chance will be exist in an environment, and by discovering it we can proceed to the better future. Thus the curated environment can be regarded as an environment equipped with a shikake. According to the policy of chance discovery, curation will be performed implicitly, but shikake can be explicitly and implicitly placed. Except from explicit placement, chance and shikake have a certain relationship. Because the above type of strategy is explained by affordance selection. That is, in the environment, a shikake exists and shikake is a certain pointer for the proper selection of affordance. In addition, the first performance of John Cage’s 4’33” can also be regarded as shikake. In fact, many concerts or exhibitions have a certain shikake. In the case of 4’33” performance, audience believed that David Tudor played something, but he did not play any tunes. He only seated in front of the piano. Because it is a silent music. No tune is described in the score. Cage wrote in (Cage 1961) “This space of time is organized. We need not fear these silences, we may love them. This is a composed talk, for I am making it just as I make a piece of music. It is like a glass of milk. We need the glass and we need the milk. Or again it is like an empty glass into which at any moment anything may be poured. As we go along, (who knows?) an idea may occur in this talk. I have no idea whether one will or not. If one does, let it. Regard it as something seen momentarily, as though from a window while traveling. If across Kansas, then, of course, Kansas. . . . Kansas is like nothing on earth, and for a New 8 Abe, A. 2012a. Chance discovery and black swan: from the viewpoint of abduction and affordance. In Proc. of KES2012. IOS Press. Abe, A. 2012b. Cognitive chance discovery: from abduction to affordance. In Magnani, L., and Li, L., eds., Philosophy and Cognitive Science, SAPERE 2. Springer Verlag. 155– 172. Abe, A. 2012c. Curation in chance discovery. In Abe, A., and Ohsawa, Y., eds., Advances in Chance Discovery, SCI 423,. Springer Verlag. 1–18. Akiyama, R., and Sugiyama, K. 2004. Holistic Communication. Senden Kaigi. in Japanese. Amitani, S., and Edmonds, E. 2010. A method for visualising possible contexts. In (Abe 2010b), 110–124. Inderscience Publishers. Cage, J. 1961. Silence. Wesleyan. Colvia, A. 2009. Caravaggio beckons to bacon: The beauty of sorrow. In A., C., and M., P., eds., Caravaggio Bacon. Frankfurt, H. 2005. On Bullshit. Princeton University Press. Gibson, J. 1977. The theory of affordances. In Shaw, R., and Bransford, J., eds., Perceiving, Acting, and Knowing. Gibson, J. 1979. The Ecological Approach to Visual Perception. Houghton Mifflin. Katsumi, A. 2011. Curation Sense. Ushio Publication. in Japanese. Maeno, Y., and Ohsawa, Y. 2010. Reflective visualization and verbalization of unconscious preference. In (Abe 2010b), 125–139. Inderscience Publishers. Magnani, L., and Bardone, E. 2010. Faking chance: Cognitive niche impoverishment. In Proc. of KES2010(LNAI6278), Part III. Springer Verlag. Matsumura, N. 2012. Shikakeology as the dual problem. In Proc. of the 26th Annual Conference of the Japanese Society for Artificial Intelligence. in Japanese. Miyadai, E. 11 March, 2010. Possibility of exhibition style. Eevening Asahi Shimbun. in Japanese. Nakamura, J.; Ohsawa, Y.; and Nishio, H. 2010. An analogy game: toward cognitive upheaval through reflection-inaction. In (Abe 2010b), 220–234. Inderscience Publishers. Norman, D. 1988. The Design of Everyday Things. Addison Wesley. of Museums Curators Committee, A. A. 2009. A code of ethics for curators. http://www.curcom.org/_pdf/ code_ethics2009.pdf. Ohsawa, Y., and McBurney, P., eds. 2003. Chance Discovery. Springer Verlag. Ohsawa, Y., and Nishihara, Y., eds. 2012. Innovators’ Marketplace. Springer Verlag. Ohsawa, Y., and Tsumoto, S., eds. 2006. Chance Discoveries in Real World Decision Making, Data-based Interaction of Human Intelligence and Artificial Intelligence Series:Studies in Computational Intelligence. Springer Verlag. Rosenbaum, S. 2011. Curation Nation. McGrau Hill. Then shikake can be included in the formulae shown in the previous section. F [chance[shikake[af f ordance |= f uture situation. (5) F [ chance [ shikake [ af f ordance 6|= 2. (6) In the previous section, I mentioned that the above formula shows that with referring to a guidance of affordance, chance will be effectively and properly generated. If we consider the existence of shikake, affordance will be selected more easily. Because a shikake functions as a hint to select an affordance. A shikake is not coincide a chance but it can help in chance discovery. Of course, in chance discovery, any shikake cannot be explicit. Thus Shikakeology and chance discovery seem to have a certain relationships. In the previous section I review the problem of chancefaking introduced by Magnani and Bardone (Magnani and Bardone 2010). By using the guidance of shikake, such chance-faking will be reduced. In addition, in the framework of shikakeology, such misunderstandings might sometimes be a certain entertainment. Conclusions In this paper, I showed the relationship between a chance and a shikake. I compare a chance and a shikake in the framework of affordance. Actually a shikake is a trigger and chance is an event or a situation. That is, a trigger will introduce us to an event or a situation. Thus a shikake can be a trigger to discover a chance. In addition, I showed the chance discovery scheme can be explained by curation. As I shown in the previous section, shikake can be a trigger in curation. And a shikake can also be explained by affordandce. By introducing a shikake to affordance-based chance discovery, more proper selection of affordance can be performed. This is a fist step of integration of chance discovery and shikakeology. In the future, more feature can be considered for the better formalization. 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