The system uses orange/green blinking squares to highlight all offices that have computers with the selected activity. Similarly, the analyst can turn on the activity layer through the activity menu (Figure 1(b)). The blinking effect is good at drawing the analyst’s attention even if the dot is small. The size of the blinking square reflects the number of computers with the selected policy status. With one policy selected, any office with a computer that belongs to this selected policy status will be highlighted as a blinking red/blue square. The analyst can select a policy from the policy drop-down menu to turn on the policy layer. To improve that condition, we created two layers to highlight offices containing computers with a selected policy status or activity status. When there are many offices in a relatively small area, the area can be cluttered with many dots of offices. Although at night machines tend to be less active, we also wanted to draw the analysts’ attention to the fact that some crucial attacks might take place during such time periods. Time zones within the early morning or late night are in darker shades to hint there is less sunlight. It is a half-transparent layer with vertical strips of gray shades. In order to present the different time zones and local times for the distributed offices, we provide an overlay time zone layer. The dataset’s Bank of Money is a global organization spanning eight time zones of BankWorld. The analyst can selectively turn on or off these layers. The SemanticPrism map (Figure 1) uses several layers to stack different dimensions of information together. Additionally, the analyst can input the desired time (period number, ranging from 1 to 192) in the time input slot or use the time step forward/backward button to advance to the next time slot or roll back to the previous slot. Zoom it analyst level 1 update#To update the statuses of all offices to a different time period, the analyst can drag and slide the time slider to a new time mark along the bar (Figure 1). In this case, the office is rep- resented by the black color. If there is no log from an office at a certain time, it means that all computers are off-line. This color setting is con- sistent in representing policy status across different visualizations and functions in SemanticPrism. The reason the most severe computer health is shown, instead of the average health status, is to draw the analyst’s attention to a problem the very first moment the problem arises. The colors, varying from yellow to orange to dark red, represent the maximum policy violation status (from 1 to 5) for all computers in the office. Different colors are applied onto the squares to indicate the maximum policy violation status of the computers within the office at that particular time. The map provides an overview of the most critical information at the current time. Different icons are used to distinguish types of offices: small squares represent regular branch offices, squares with one boundary line represent the regional headquarters, and squares with two boundary lines represent headquarters and data centers. Offices around BankWorld are marked on the map as square dots. The default view of SemanticPrism is a geographic visualization with a time slider designed to visualize the computer status at a given time (Figure 1). We chose semantic zoom as the basic interaction technique to navigate through these visualizations. has multiple visualizations to present different levels of details. Marshall added that while she sees a significant opportunity in Zoom shares over a longer time span, she sees risks and potential returns as balanced for the near-to-medium term. She said an “overhang is likely to remain on the stock” for the next six months, “limiting opportunity for value realization.” Zoom has had some trouble holding on to some online customers added during the pandemic-generally individuals and small businesses-and Marshall doesn’t expect that business to stabilize until early next year. It traded as low as $70.43, a level the stock last touched in January 2020. Near midday, the stock was down 3.2%, to $71.38. Marshall cut her target price on Zoom (ticker: ZM) shares to $90, from $130. A weaker economy is an additional challenge, she said. Marshall said that while she continues to see “tremendous value” in Zoom’s enterprise business, that value will be difficult for investors to realize while the company’s online operation continues to decline in the post-Covid environment.
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