The All-Sky Automated Survey for Supernovae (ASAS-SN) is working toward imaging the entire visible sky every night to a depth of V ∼ 17 mag. The present data covers the sky and spans ∼2-5 years with ...∼100-400 epochs of observation. The data should contain some ∼1 million variable sources, and the ultimate goal is to have a database of these observations publicly accessible. We describe here a first step, a simple but unprecedented web interface https://asas-sn.osu.edu/ that provides an up to date aperture photometry light curve for any user-selected sky coordinate. The V band photometry is obtained using a two-pixel (16 0) radius aperture and is calibrated against the APASS catalog. Because the light curves are produced in real time, this web tool is relatively slow and can only be used for small samples of objects. However, it also imposes no selection bias on the part of the ASAS-SN team, allowing the user to obtain a light curve for any point on the celestial sphere. We present the tool, describe its capabilities, limitations, and known issues, and provide a few illustrative examples.
The All-Sky Automated Survey for Supernovae (ASAS-SN) is working toward imaging the entire visible sky every night to a depth of V ~ 17 mag. The present data covers the sky and spans ~2–5 years with ...~100–400 epochs of observation. The data should contain some ~1 million variable sources, and the ultimate goal is to have a database of these observations publicly accessible. We describe here a first step, a simple but unprecedented web interface https://asas-sn.osu.edu/ that provides an up to date aperture photometry light curve for any user-selected sky coordinate. The V band photometry is obtained using a two-pixel (16″.0) radius aperture and is calibrated against the APASS catalog. Because the light curves are produced in real time, this web tool is relatively slow and can only be used for small samples of objects. However, it also imposes no selection bias on the part of the ASAS-SN team, allowing the user to obtain a light curve for any point on the celestial sphere. We present the tool, describe its capabilities, limitations, and known issues, and provide a few illustrative examples.
Building a multimodal human-robot interface Perzanowski, D.; Schultz, A.C.; Adams, W. ...
IEEE intelligent systems,
2001-Jan.-Feb., 2001-1-00, 20010101, Letnik:
16, Številka:
1
Journal Article
Recenzirano
Odprti dostop
When we begin to build and interact with machines or robots that either look like humans or have human functionalities and capabilities, then people may well interact with their human-like machines ...in ways that mimic human-human communication. For example, if a robot has a face, a human might interact with it similarly to how humans interact with other creatures with faces, Specifically, a human might talk to it, gesture to it, smile at it, and so on. If a human interacts with a computer or a machine that understands spoken commands, the human might converse with the machine, expecting it to have competence in spoken language. In our research on a multimodal interface to mobile robots, we have assumed a model of communication and interaction that, in a sense, mimics how people communicate. Our interface therefore incorporates both natural language understanding and gesture recognition as communication modes. We limited the interface to these two modes to simplify integrating them in the interface and to make our research more tractable. We believe that with an integrated system, the user is less concerned with how to communicate (which interactive mode to employ for a task), and is therefore free to concentrate on the tasks and goals at hand. Because we integrate all our system's components, users can choose any combination of our interface's modalities. The onus is on our interface to integrate the input, process it, and produce the desired results.
Spatial language for human-robot dialogs Skubic, M.; Perzanowski, D.; Blisard, S. ...
IEEE transactions on systems, man and cybernetics. Part C, Applications and reviews,
05/2004, Letnik:
34, Številka:
2
Journal Article
In conversation, people often use spatial relationships to describe their environment, e.g., "There is a desk in front of me and a doorway behind it," and to issue directives, e.g., "go around the ...desk and through the doorway." In our research, we have been investigating the use of spatial relationships to establish a natural communication mechanism between people and robots, in particular, for novice users. In this paper, the work on robot spatial relationships is combined with a multimodal robot interface. We show how linguistic spatial descriptions and other spatial information can be extracted from an evidence grid map and how this information can be used in a natural, human-robot dialog. Examples using spatial language are included for both robot-to-human feedback and also human-to-robot commands. We also discuss some linguistic consequences in the semantic representations of spatial and locative information based on this work.
The All-Sky Automated Survey for Supernovae (ASAS-SN) is working towards imaging the entire visible sky every night to a depth of V~17 mag. The present data covers the sky and spans ~2-5~years with ...~100-400 epochs of observation. The data should contain some ~1 million variable sources, and the ultimate goal is to have a database of these observations publicly accessible. We describe here a first step, a simple but unprecedented web interface https://asas-sn.osu.edu/ that provides an up to date aperture photometry light curve for any user-selected sky coordinate. Because the light curves are produced in real time, this web tool is relatively slow and can only be used for small samples of objects. However, it also imposes no selection bias on the part of the ASAS-SN team, allowing the user to obtain a light curve for any point on the celestial sphere. We present the tool, describe its capabilities, limitations, and known issues, and provide a few illustrative examples.
Information in a discourse can be obtained by analyzing several different linguistic properties of the discourse. Various syntactic and semantic triggers provide clues to the complex informational ...structure of a discourse. For the purposes of this investigation, we selected several discourses taken from a series of wire service messages dealing with terrorist incidents that occurred in Central America from 1989 to 1991. The corpus is known as the "MUC-3" corpus. Because of their inferential properties, we identified it-cleft constructions in the corpus. We argue that, despite their rarity in the corpus under investigation, it-clefts provide additional information, and do not just contrast or emphasize focused linguistic material, such as noun or prepositional phrases. By substituting so-called "normal" word order, or SVO paraphrases, for the it-clefts in the messages, we determined what information the it-cleft sentences provided in the discourse. Our investigation reveals that, as a subset of the information that can be obtained in a discourse, it-clefts can be used to avoid conflicting or differing interpretations inherent in their SVO paraphrases, thereby minimizing possible confusion regarding the interpretation of what the author is trying to communicate. In some cases the speaker/writer's point of view or attitude about the subject matter being discussed is also revealed. For example, we show how a focused generic noun phrase in an it-cleft sentence provides a clearer statement of the author's intended meaning.
Background Time trends for allergic sensitization are poorly known. Objective To compare the trends in prevalence of allergic sensitization and associated risk factors in children. Methods Two ...cohorts of children (age 7-8 years) were invited for skin prick tests (SPTs) 10 years apart, 1996 and 2006. The participation rates were 2148 (88%) and 1700 (90%), respectively. The methods were identical, and 10 common airborne allergens were used. An expanded International Study of Allergy and Asthma in Children questionnaire about symptoms and possible risk factors for allergic conditions was completed by the parents. Results The prevalence of any positive SPT increased from 21% in 1996 to 30% in 2006 ( P < .001). The pattern of sensitization remained similar, and sensitization to cat was most common both years, 13% and 19%, respectively. Sensitization to mites and mold was uncommon in both surveys. A family history of allergy was a significant risk factor for a positive SPT both years (odds ratio, 1.7). Factors that in 1996 had a protective effect, such as rural living and having several siblings, had lost this effect in 2006. The prevalence of most risk factors remained similar, but respiratory infections and smoking among parents decreased significantly. During the same period, there was no significant increase in the prevalence of current wheeze (11.9% to 12.4%, P = .636) or symptoms of rhinitis or eczema. Conclusion The prevalence of allergic sensitization increased significantly from 1996 to 2006, whereas no increase in clinical symptoms was found. The parallel decrease in parental smoking and respiratory infections indicate a different influence of environmental factors on allergic sensitization and clinical symptoms, respectively.
Background In 2009, we reported a novel form of delayed anaphylaxis to red meat that is related to serum IgE antibodies to the oligosaccharide galactose-α-1,3-galactose (alpha-gal). Most of these ...patients had tolerated meat for many years previously. The implication is that some exposure in adult life had stimulated the production of these IgE antibodies. Objectives We sought to investigate possible causes of this IgE antibody response, focusing on evidence related to tick bites, which are common in the region where these reactions occur. Methods Serum assays were carried out with biotinylated proteins and extracts bound to a streptavidin ImmunoCAP. Results Prospective studies on IgE antibodies in 3 subjects after tick bites showed an increase in levels of IgE to alpha-gal of 20-fold or greater. Other evidence included (1) a strong correlation between histories of tick bites and levels of IgE to alpha-gal (χ2 = 26.8, P < .001), (2) evidence that these IgE antibodies are common in areas where the tick Amblyomma americanum is common, and (3) a significant correlation between IgE antibodies to alpha-gal and IgE antibodies to proteins derived from A americanum ( rs = 0.75, P < .001). Conclusion The results presented here provide evidence that tick bites are a cause, possibly the only cause, of IgE specific for alpha-gal in this area of the United States. Both the number of subjects becoming sensitized and the titer of IgE antibodies to alpha-gal are striking. Here we report the first example of a response to an ectoparasite giving rise to an important form of food allergy.
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