Start exam quiz HERE: Attempt review | Moodle2.pdf

Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Started on Tuesday, 14 May 2024, 9:30 AM State Finished Completed on T...

Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Started on Tuesday, 14 May 2024, 9:30 AM State Finished Completed on Tuesday, 14 May 2024, 10:59 AM Time taken 1 hour 28 mins Grade 15.00 out of 60.00 (25%) Information There is a 90 minute time limit for this Quiz. You are only allowed one attempt at this Quiz. There are 30 multiple choice questions, each with three answer options. Each question is worth up to two marks. You must select one answer option for each question. If you think that more than one answer is correct, please select the answer you think is most likely or most important. Each correct answer earns you two marks; each incorrect answer incurs a one mark penalty. The total will be scaled to account for 70% of your total mark for IV. Information Click here to load the course web page in a separate window if necessary Click here to load the course wiki in a separate window if necessary Question 1 Perception Complete Mark -1.00 out Select one: of 2.00 a. of shape is quicker than colour b. of targets amongst distractors with respect to speed depends on the number of distractors c. of objects being related is most strongly signified by connecting them with lines https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 1 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 2 In relation to data encoding Complete Mark -1.00 out of 2.00 Select one: a. trees, flowers and bushes are nominal b. there may be channel interference between position and size c. the expressivity of a channel is dependent on its effectiveness Question 3 In the context of data collection Complete Mark -1.00 out Select one: of 2.00 a. performance data is always objective b. preference data is related to perception data because they are both qualitative c. a video recording of a participant's actions is quantitative and objective data Question 4 How many scatterplots are in a SPLOM, used to present 9-dimensional data? Complete Mark 2.00 out of Select one: 2.00 a. 72 b. 45 c. 81 Question 5 Large Graphs Complete Mark 2.00 out of Select one: 2.00 a. that represent large social networks can be reduced in size by clustering edges with the same attributes b. can be explored using interactive graph visualisation techniques c. can always be reduced in size by putting nodes and edges into bundles, while preserving details of structure https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 2 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 6 A single axis composition generally means Complete Mark -1.00 out Select one: of 2.00 a. Aligning several separate visualisations, based on one dimension that they all share b. Overlaying several separate data sets in one visualisation, based on one dimension that they all share c. A one-dimensional visualisation, such as a bar divided up into segments, where each segment’s length is in proportion to each item in a data set Question 7 A wildlife park records, every year, two quantitative variables, X1 and X2, and one categorical Complete variable, X3. X1 is the probability of observation of an animal species in the park, and its range is from Mark 2.00 out of 0 to 1. X2 is the population of a species in the park, ranging from 0 to 1,000,000. Each instance of X3 is 2.00 one of 6 species names. Which of the following would make for the most effective representation of the data set? Select one: a. A heat map, with X1 and X2 used for the orthogonal x-y axes, and 6 hues used for the values of X3. b. A scatterplot, with X1 and X2 used for the orthogonal x-y axes, and 6 hues used for the values of X3. c. A scatterplot, with X1 and X2 used for the orthogonal x-y axes, and six spatial regions used for the values of X3. Question 8 In the context of data collection Complete Mark -1.00 out Select one: of 2.00 a. performance data is always quantitative b. a diagram created by a participant is qualitative and objective data c. preference data is related to perception data because they are both qualitative Question 9 Imagine you are using a basic spring model algorithm, to analyse some complex data with 100 Complete quantitative dimensions. The distance metric is simple geometric distance in the high-dimensional Mark 2.00 out of space. You first lay out 5000 objects, using just 50 dimensions. If you then plan to lay out 10000 2.00 objects, using the same 50 dimensions, roughly how long will each iteration of the spring model take? Select one: a. 2 times longer than before b. 16 times longer than before c. 4 times longer than before https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 3 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 10 Stevens’ power law describes Complete Mark 2.00 out of Select one: 2.00 a. how perceived sensation varies as physical intensity changes, for a given medium b. how subjective perception of intensity of a given medium varies across different people c. how the accuracy of subjective perception varies as physical intensity changes, for a given medium Question 11 With respect to the things a viewer might find interesting in a visualisation: Complete Mark 2.00 out of Select one: 2.00 a. paths relate to attributes whose values are linked to each other b. a viewer is usually interested in particular "targets" c. outliers are investigated when focussing on distribution targets Question 12 Successful methods of drawing graphs Complete Mark 2.00 out of Select one: 2.00 a. always produce the same drawing of the same graph b. typically try to conform to a sub-set of well-known aesthetic principles c. use forces only for directed graphs Question 13 Imagine a data set of dates and locations of theatre shows. Selecting a rectangular area on a map of Complete the data is used to create a declarative query. If the same query is then used in a linked bar chart, with Mark 2.00 out of one bar per month 2.00 Select one: a. all the selected items will be in one bar b. the bars with the selected items will be next to each other c. the selected items could be in any combination of bars Question 14 The Visualisation Pipeline Complete Mark 2.00 out of Select one: 2.00 a. highlights the importance of transforming data b. depicts four independent processes from data to view c. includes a step for displaying visual structures as a user view https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 4 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 15 You are working on a visualisation of a global climate data set: an interactive map. So far, there are Complete four choices of data set that you are considering, two potential interaction techniques that you might Mark -1.00 out use, and three choices of colour map. If you now consider an additional data set option, how much of 2.00 bigger will the design space be? Select one: a. 4 times bigger b. 6 times bigger c. 5 times bigger Question 16 Consider a grey cloud, drawn on a weather map. In semiotic terms, is this: Complete Mark -1.00 out Select one: of 2.00 a. a symbol b. a mark c. an icon Question 17 An example of 'query relaxation' in general selection is Complete Mark 2.00 out of Select one: 2.00 a. Highlighting all objects that belong to the same category as a selected object b. Brushing and linking, where a selection in one view is reflected in others c. Zooming into a particular area to see objects of interest in more detail Question 18 When depicting bivariate data, where one variable is quantitative and the other is categorical Complete Mark -1.00 out Select one: of 2.00 a. a line chart will not be a good depiction, unless the category order is fairly randomised b. a scatterplot might be a good depiction, but no trend lines should be drawn c. a bar chart could be a good depiction, if the zero bar height matches the minimum quantitative value https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 5 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 19 A supermarket is working with two data sets, A and B. A consists of the names of the 10 food products Complete most often bought by each customer. B consists of the number of times each customer has bought each Mark -1.00 out of the 10 products most frequently bought in the supermarket , based on data from all customers. of 2.00 Which of the following best describes the data sets, using Munzner’s classification? Select one: a. Two multidimensional tables b. A table, and a multidimensional table c. Two tables Question 20 Imagine you are designing a system that some scientists can use to analyse some complex data. You Complete will be using a dimensional reduction algorithm. The scientists say that fine-grained local detail is Mark -1.00 out important, but also that the presence of high-level clusters (and accurate relationships between these of 2.00 clusters) is also important. Which of these algorithms would not be a good choice for this? Select one: a. Spring model b. tSNE c. UMAP Question 21 Data Complete Mark -1.00 out Select one: of 2.00 a. Although it might not always be valuable, collected by questionnaire is easy to collect b. Although it is sometimes qualitative, data collected for an evaluation is typically quantitative c. Data collected by observation is always subjective Question 22 Imagine you are the person responsible for formative evaluation of an application in a company, doing Complete interviews with test participants (sometimes multiple interviews with the same participant), and Mark -1.00 out managing a database to store all the qualitative data from that work. Which of the following database of 2.00 attributes would be most appropriate and useful for your work? Select one: a. ParticipantID, InterviewText, ProofOfWorthMeasure, IterationNumber b. ParticipantID, InterviewText, ProofOfWorthMeasure, InterviewNumber c. ParticipantID, InterviewText, IterationNumber, InterviewNumber https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 6 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 23 Summative evaluation Complete Mark 2.00 out of Select one: 2.00 a. does not collect qualitative data b. takes suggested improvements into account c. is different from formative evaluation because it focusses on the extent to which specified criteria are satisfied Question 24 In the context of justifying design: Complete Mark -1.00 out Select one: of 2.00 a. parallel co-ordinates visualisations are useful in describing design space b. the QOC notation focusses on the options available for making a choice c. Design should be justified with respect to possibilities Question 25 Using SQL to interactively define queries over a large database Complete Mark 2.00 out of Select one: 2.00 a. always lets the user see all data objects in the database clearly b. lets the user see data objects that match the query exactly c. lets the user see data objects that match the query with varying levels of accuracy Question 26 Bertin's visual variables Complete Mark -1.00 out Select one: of 2.00 a. are either unordered or quantitative b. all have the same pre-attentive properties c. are independent of each other Question 27 A Chernoff Face glyph Complete Mark 2.00 out of Select one: 2.00 a. Should only be used to represent information about a person b. Is only good for visualising very low dimensional data sets c. Is made up of graphical elements that can interfere with each other, in representing independent dimensions https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 7 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM Question 28 The Gestalt laws Complete Mark 2.00 out of Select one: 2.00 a. only relate to static images b. relate to bottom-up and top-down visual processing c. are ranked in order (top three): proximity, similarity, connectedness. Question 29 An example of 'focus and context' system in a visualisation is Complete Mark 2.00 out of Select one: 2.00 a. A zoomed-in view of a scatterplot, where a subset of the data takes up the full screen b. A fisheye distortion of a map c. A timeline view of data, plotting all occurrences of an event against a time axis Question 30 Colour Complete Mark -1.00 out Select one: of 2.00 a. hue is bad for representing ordered data b. is defined by hue, value, saturation and brightness c. only has eight named hues, plus white https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 8 of 9 Start exam quiz HERE: Attempt review | Moodle2 22/07/2024, 5:05 AM https://moodle.gla.ac.uk/mod/quiz/review.php?attempt=4211870&cmid=4298375 Page 9 of 9