Controlling the flood: when more of a dose is less

Johnson, Jerry

doi:10.1108/jd-01-2013-0008

Cited by 25 publications

(14 citation statements)

References 63 publications

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“…It has been suggested that the magnitude of the information available has created a situation characterised by ambiguity, uncertainty and lack of trust (see, Beck, 1992;Benigeri & Pluye, 2003;Giddens, 1997). "Information overload" has become a central concept in areas such as sociology, psychology and communication science (Savolainen, 2007), and it generally highlights that the supply of information is greater than our capacity to process it (Eppler & Mengis, 2004;Johnson, 2014).…”

Section: With This Development As Backdropmentioning

confidence: 99%

The credibility of risk information about licit substances: An exploratory study of attitudes among Swedish adults

Ekendahl¹,

Karlsson²

2015

Nordic Studies on Alcohol and Drugs

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Acta Technologica Agriculturae 1/2016Dušan Páleš et al.The most effective way for determination of curves for practical use is to use a set of control points. These control points can be accompanied by other restriction for the curve, for example boundary conditions or conditions for curve continuity (Sederberg, 2012). When a smooth curve runs only through some control points, we refer to curve approximation. The B-spline curve is one of such approximation curves and is addressed in this contribution. A special case of the B-spline curve is the Bézier curve Rédl et al., 2014). The B-spline curve is applied to a set of control points in a space, which were obtained by measurement of real vehicle movement on a slope (Rédl, 2007(Rédl, , 2008. Data were processed into the resulting trajectory (Rédl, 2012;Rédl and Kučera, 2008). Except for this, the movement of the vehicle was simulated using motion equations (Rédl, 2003;Rédl and Kročko, 2007). B-spline basis functionsBézier basis functions known as Bernstein polynomials are used in a formula as a weighting function for parametric representation of the curve (Shene, 2014). B-spline basis functions are applied similarly, although they are more complicated. They have two different properties in comparison with Bézier basis functions and these are: 1) solitary curve is divided by knots, 2) basis functions are not nonzero on the whole area. Every B-spline basis function is nonzero only on several neighbouring subintervals and thereby it is changed only locally, so the change of one control point influences only the near region around it and not the whole curve.These numbers are called knots, the set U is called the knot vector, and the half-opened interval 〈u i , u i + 1 ) is the i-th knot span. Seeing that knots u i may be equal, some knot spans may not exist, thus they are zero. If the knot u i appears p times, hence u i = u i + 1 = ... = u i + p -1 , where p >1, u i is a multiple knot of multiplicity p, written as u i (p). If u i is only a solitary knot, it is also called a simple knot. If the knots are equally spaced, i.e. (u i + 1 -u i ) = constant, for every 0 ≤ i ≤ (m -1), the knot vector or knot sequence is said uniform, otherwise it is non-uniform.Knots can be considered as division points that subdivide the interval 〈u 0 , u m 〉 into knot spans. All B-spline basis functions are supposed to have their domain on 〈u 0 , u m 〉. We will use u 0 = 0 and u m = 1.To define B-spline basis functions, we need one more parameter k, which gives the degree of these basis functions. Recursive formula is defined as follows:This definition is usually referred to as the Cox-de Boor recursion formula. If the degree is zero, i.e. k = 0, these basis functions are all step functions that follows from Eq. (1). N i, 0 (u) = 1 is only in the i-th knot span 〈u i , u i + 1 ). For example, if we have four knots u 0 = 0, u 1 = 1, u 2 = 2 and u 3 = 3, knot spans 0, 1 and 2 are 〈0, 1), 〈1, 2) and 〈2, 3), and the basis functions of degree 0 are N 0, 0 (u) = 1 on interval 〈0, 1) Acta In this co...

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Section: With This Development As Backdropmentioning

confidence: 99%

The credibility of risk information about licit substances: An exploratory study of attitudes among Swedish adults

Ekendahl¹,

Karlsson²

2015

Nordic Studies on Alcohol and Drugs

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“…The literature considering psychological and cognitive coping strategies with information overload acknowledge individual, social and organisational strategies. The described individual strategies include (selective) attention, delegation (gatekeeping), escape and creative destruction (Johnson, 2014), filtering, withdrawal (Savolainen, 2007), queueing (Wilson, 1995) and developing information competencies to gain control over the information and technology environment (Bawden and Robison, 2009).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…Selective attention described by Johnson (2014) has certain similarities with the filtering strategy. This strategy focuses on when to stop seeking and filtering relevant information while experiencing excessive floods of information.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Section: Theoretical Backgroundmentioning

confidence: 99%

“…Creative destruction as a coping strategy is emphasising the importance of having the opportunity to revise the existing widely accepted ideas, even though it had required a lot of energy to attain (Johnson, 2014). According to Johnson (Johnson, 2014), we should pay as much attention to what information to discard as what to acquire. Creative destruction explains a certain philosophical approach to organisational learning and is not necessarily considered as a strategy for coping with information overload.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

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Information cultures and strategies for coping with information overload: case of Estonian higher education institutions

Lauri

Virkus

Heidmets

2020

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PurposeThis paper focuses on the links between information culture and the perception of the information overload on the example of higher education institutions in Estonia. The aim of this study is to understand how different types of information culture affect coping with information overload.Design/methodology/approachTwo focus-group interviews with 14 participants and 17 semi-structured interviews with representatives of four HEIs were conducted. First, the questions on the values, norms and assumptions as well as information related practices were discussed to assess the dominant components of the information culture. Second, the perception of information overload was explored. Further, the strategies for coping with information overload were examined. Constant comparative analysis was used to analyse the interview data.FindingsThe results of the study suggest that the construct of information culture is valuable in understanding information environments and their relation to the perception of information overload. The participants representing the open information culture prefer informal information sharing and are more vulnerable to perceive information overload than the participants representing the integrated information culture. Organisational information management is the key to effective coping with information overload.Originality/valueThe current study sheds light on the perception of information overload in connection with information culture.

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A Guided Tour Study of the Untidy but InspirationalPIMof Visual Artists

Hellmich,

Dinneen

2023

Proceedings of the Association for Information Science and Tech

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While all individuals deal with increasingly large amounts of digital information in their everyday lives and professionally, prior works suggest visual artists have unique information management practices and challenges. This study therefore examined the personal information management (PIM) practices and challenges of six practising visual artists using guided tours and short interviews. It was found that the visual artists had some unique practices connected to their strong emphasis on serendipity, inspiration, and visual dimensions of information. Like non‐artists, the participants faced challenges across all phases of PIM, chiefly an excess of information and fragmented organisation, and they found it especially hard to assess how personal and valuable their information could be. After characterising this rarely discussed PIM demographic, we draw on the findings to provide concrete recommendations for artists doing PIM, for information and cultural heritage institutions, and for designers of PIM software.

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Controlling the flood: when more of a dose is less

Cited by 25 publications

References 63 publications

The credibility of risk information about licit substances: An exploratory study of attitudes among Swedish adults

The credibility of risk information about licit substances: An exploratory study of attitudes among Swedish adults

Information cultures and strategies for coping with information overload: case of Estonian higher education institutions

A Guided Tour Study of the Untidy but InspirationalPIMof Visual Artists

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