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Tag Wiki 'Information'.

Information is an that refers to that which has the power to . At the most fundamental level, information pertains to the interpretation (perhaps formally) of that which may be , or their . Any natural process that is not completely random and any observable pattern in any medium can be said to convey some amount of information. Whereas and other use discrete signs to convey information, other phenomena and artifacts such as , , , or other , and currents convey information in a more continuous form.

(1996). 9780471711209, Ieee Press.
Information is not itself, but the meaning that may be derived from a representation through interpretation.
(2024). 9780511546433, Cambridge University Press.

The concept of information is relevant or connected to various concepts,

(2024). 9780191609541, Oxford University Press. .
including constraint, , , , , , , meaning, , , , , proposition, representation, and entropy.

Information is often processed iteratively: Data available at one step are into information to be interpreted and processed at the next step. For example, in each or letter conveys information relevant to the word it is part of, each word conveys information relevant to the phrase it is part of, each phrase conveys information relevant to the sentence it is part of, and so on until at the final step information is interpreted and becomes knowledge in a given . In a , may be interpreted into the symbols, letters, numbers, or structures that convey the information available at the next level up. The key characteristic of information is that it is subject to interpretation and processing.

The derivation of information from a signal or message may be thought of as the resolution of or that arises during the interpretation of patterns within the signal or message.

Information may be structured as . Redundant data can be up to an optimal size, which is the theoretical limit of compression.

The information available through a collection of data may be derived by analysis. For example, a restaurant collects data from every customer order. That information may be analyzed to produce knowledge that is put to use when the business subsequently wants to identify the most popular or least popular dish.

Information can be transmitted in time, via , and space, via and telecommunication. Information is expressed either as the content of a or through direct or indirect . That which is can be construed as a message in its own right, and in that sense, all information is always conveyed as the content of a message.

Information can be into various forms for transmission and interpretation (for example, information may be encoded into a of signs, or transmitted via a signal). It can also be for safe storage and communication.

The uncertainty of an event is measured by its probability of occurrence. Uncertainty is inversely proportional to the probability of occurrence. Information theory takes advantage of this by concluding that more uncertain events require more information to resolve their uncertainty. The is a typical unit of information. It is 'that which reduces uncertainty by half'. Other units such as the nat may be used. For example, the information encoded in one "fair" coin flip is log2(2/1) = 1 bit, and in two fair coin flips is log2(4/1) = 2 bits. A 2011 Science article estimates that 97% of technologically stored information was already in digital in 2007 and that the year 2002 was the beginning of the for information storage (with digital storage capacity bypassing analogue for the first time). Free access to the article at

Exact definition of information and digital application
Information can be defined exactly by set theory:

"Information is a selection from the domain of information".

The "domain of information" is a set that the sender and receiver of information must know before exchanging information. Digital information, for example, consists of building blocks that are all number sequences. Each number sequence represents a selection from its domain. The sender and receiver of digital information (number sequences) must know the domain and binary format of each number sequence before exchanging information. By defining number sequences online, this would be systematically and universally usable. Before the exchanged digital number sequence, an efficient unique link to its online definition can be set. This online-defined digital information (number sequence) would be globally comparable and globally searchable.Orthuber, Wolfgang (16 May 2022). "We Can Define the Domain of Information Online and Thus Globally Uniformly" Https:// .

The English word "information" comes from Middle French enformacion/informacion/information 'a criminal investigation' and its etymon, Latin informatiō(n) 'conception, teaching, creation'. Oxford English Dictionary, Third Edition, 2009, full text

In English, "information" is an uncountable .

Information theory
Information theory is the scientific study of the quantification, storage, and communication of information. The field was fundamentally established by the works of and in the 1920s, and in the 1940s. The field is at the intersection of probability theory, , computer science, statistical mechanics, information engineering, and electrical engineering.

A key measure in information theory is entropy. Entropy quantifies the amount of uncertainty involved in the value of a or the outcome of a . For example, identifying the outcome of a fair (with two equally likely outcomes) provides less information (lower entropy) than specifying the outcome from a roll of a (with six equally likely outcomes). Some other important measures in information theory are mutual information, channel capacity, , and . Important sub-fields of information theory include , algorithmic complexity theory, algorithmic information theory, and information-theoretic security.

There is another opinion regarding the universal definition of information. It lies in the fact that the concept itself has changed along with the change of various historical epochs, and to find such a definition, it is necessary to find standard features and patterns of this transformation. For example, researchers in the field of information Petrichenko E. A. and Semenova V. G., based on a retrospective analysis of changes in the concept of information, give the following universal definition: "Information is a form of transmission of human experience (knowledge)." In their opinion, the change in the essence of the concept of information occurs after various breakthrough technologies for the transfer of experience (knowledge), i.e. the appearance of writing, the printing press, the first encyclopedias, the telegraph, the development of cybernetics, the creation of a microprocessor, the Internet, smartphones, etc. Each new form of experience transfer is a synthesis of the previous ones. That is why we see such a variety of definitions of information, because, according to the law of dialectics "negation-negation", all previous ideas about information are contained in a "filmed" form and in its modern representation.

Applications of fundamental topics of information theory include source coding/ (e.g. for ZIP files), and channel coding/error detection and correction (e.g. for DSL). Its impact has been crucial to the success of the missions to deep space, the invention of the , the feasibility of mobile phones and the development of the Internet. The theory has also found applications in other areas, including statistical inference,Burnham, K. P. and Anderson D. R. (2002) Model Selection and Multimodel Inference: A Practical Information-Theoretic Approach, Second Edition (Springer Science, New York) . , ,

(1997). 9780262681087, The MIT press.
, linguistics, the evolution and function of molecular codes (), , quantum computing, black holes, information retrieval, intelligence gathering, plagiarism detection, pattern recognition, anomaly detection and even art creation.

As sensory input
Often information can be viewed as a type of input to an or . Inputs are of two kinds; some inputs are important to the function of the organism (for example, food) or system () by themselves. In his book Sensory Ecology
(1992). 9780716723332, W.H. Freeman. .
biophysicist David B. Dusenbery called these causal inputs. Other inputs (information) are important only because they are associated with causal inputs and can be used to the occurrence of a causal input at a later time (and perhaps another place). Some information is important because of association with other information but eventually there must be a connection to a causal input.

In practice, information is usually carried by weak stimuli that must be detected by specialized sensory systems and amplified by energy inputs before they can be functional to the organism or system. For example, light is mainly (but not only, e.g. plants can grow in the direction of the light source) a causal input to plants but for animals it only provides information. The colored light reflected from a flower is too weak for photosynthesis but the visual system of the bee detects it and the bee's nervous system uses the information to guide the bee to the flower, where the bee often finds nectar or pollen, which are causal inputs, a nutritional function.

As representation and complexity
The cognitive scientist and applied mathematician Ronaldo Vigo argues that information is a concept that requires at least two related entities to make quantitative sense. These are, any dimensionally defined category of objects S, and any of its subsets R. R, in essence, is a representation of S, or, in other words, conveys representational (and hence, conceptual) information about S. Vigo then defines the amount of information that R conveys about S as the rate of change in the of S whenever the objects in R are removed from S. Under "Vigo information", pattern, invariance, complexity, representation, and informationfive fundamental constructs of universal scienceare unified under a novel mathematical framework.
(2024). 9780415714365, Scientific Psychology Series, Routledge.
Among other things, the framework aims to overcome the limitations of Shannon-Weaver information when attempting to characterize and measure subjective information.

As a substitute for task wasted time, energy, and material
has proposed that the focus on information should be what it does as opposed to defining what it is. Grieves has proposed
(2024). 9780071452304, McGraw Hill.
that information can be substituted for wasted physical resources, time, energy, and material, for goal-oriented tasks. Goal-oriented tasks can be divided into two components: the most cost-efficient use of physical resources: time, energy and material, and the additional use of physical resources used by the task. This second category is by definition wasted physical resources. Information does not substitute or replace the most cost-efficient use of physical resources but can be used to replace the wasted physical resources. The condition that this occurs under is that the cost of information is less than the cost of the wasted physical resources. Since information is a non-rival good, this can be especially beneficial for repeatable tasks. In manufacturing, the task category of the most cost-efficient use of physical resources is called lean manufacturing.

As an influence that leads to transformation
Information is any type of pattern that influences the formation or transformation of other patterns. In this sense, there is no need for a conscious mind to perceive, much less appreciate, the pattern. Consider, for example, . The sequence of is a pattern that influences the formation and development of an without any need for a conscious mind. One might argue though that for a human to consciously define a pattern, for example a nucleotide, naturally involves conscious information processing. However, the existence of and organisms, with the complex that leads, among other events, to the existence of and polynucleotides that interact maintaining the biological order and participating in the development of multicellular organisms, precedes by millions of years the emergence of human consciousness and the creation of the scientific culture that produced the chemical nomenclature.

at times seems to refer to information in this sense, assuming information does not necessarily involve any conscious mind, and patterns circulating (due to ) in the system can be called information. In other words, it can be said that information in this sense is something potentially perceived as representation, though not created or presented for that purpose. For example, defines "information" as a "difference that makes a difference".

If, however, the premise of "influence" implies that information has been perceived by a conscious mind and also interpreted by it, the specific context associated with this interpretation may cause the transformation of the information into . Complex definitions of both "information" and "knowledge" make such semantic and logical analysis difficult, but the condition of "transformation" is an important point in the study of information as it relates to knowledge, especially in the business discipline of knowledge management. In this practice, tools and processes are used to assist a in performing research and making decisions, including steps such as:

  • Review information to effectively derive value and meaning
  • Reference if available
  • Establish context, often from many possible contexts
  • Derive new knowledge from the information
  • Make decisions or recommendations from the resulting knowledge

Stewart (2001) argues that transformation of information into knowledge is critical, lying at the core of value creation and competitive advantage for the modern enterprise.

In a biological framework, Mizraji has described information as an entity emerging from the interaction of patterns with receptor systems (eg: in molecular or neural receptors capable of interacting with specific patterns, information emerges from those interactions). In addition, he has incorporated the idea of "information catalysts", structures where emerging information promotes the transition from pattern recognition to goal-directed action (for example, the specific transformation of a substrate into a product by an enzyme, or auditory reception of words and the production of an oral response)

The Danish Dictionary of Information Terms argues that information only provides an answer to a posed question. Whether the answer provides knowledge depends on the informed person. So a generalized definition of the concept should be: "Information" = An answer to a specific question".

When speaks of media and their effects on human cultures, he refers to the structure of artifacts that in turn shape our behaviors and mindsets. Also, are often said to be "information" in this sense.

Technologically mediated information
These sections are using measurements of data rather than information, as information cannot be directly measured.

As of 2007
It is estimated that the world's technological capacity to store information grew from 2.6 (optimally compressed) in 1986 – which is the informational equivalent to less than one 730-MB per person (539 MB per person) – to 295 (optimally compressed) in 2007. This is the informational equivalent of almost 61 per person in 2007.

The world's combined technological capacity to receive information through one-way networks was the informational equivalent of 174 per person per day in 2007.

The world's combined effective capacity to exchange information through two-way telecommunication networks was the informational equivalent of 6 newspapers per person per day in 2007.

As of 2007, an estimated 90% of all new information is digital, mostly stored on hard drives.Failure Trends in a Large Disk Drive Population. Eduardo Pinheiro, Wolf-Dietrich Weber and Luiz Andre Barroso

As of 2020
The total amount of data created, captured, copied, and consumed globally is forecast to increase rapidly, reaching 64.2 zettabytes in 2020. Over the next five years up to 2025, global data creation is projected to grow to more than 180 zettabytes.

As records
Records are specialized forms of information. Essentially, records are information produced consciously or as by-products of business activities or transactions and retained because of their value. Primarily, their value is as evidence of the activities of the organization but they may also be retained for their informational value. Sound records management ensures that the integrity of records is preserved for as long as they are required.

The international standard on records management, ISO 15489, defines records as "information created, received, and maintained as evidence and information by an organization or person, in pursuance of legal obligations or in the transaction of business". The International Committee on Archives (ICA) Committee on electronic records defined a record as, "recorded information produced or received in the initiation, conduct or completion of an institutional or individual activity and that comprises content, context and structure sufficient to provide evidence of the activity".

Records may be maintained to retain of the organization or to meet legal, fiscal or accountability requirements imposed on the organization. Willis expressed the view that sound management of business records and information delivered "...six key requirements for good corporate governance...transparency; accountability; due process; compliance; meeting statutory and common law requirements; and security of personal and corporate information."

has classified "information" in terms of its uses: "information as process", "information as knowledge", and "information as thing".


(2024). 9780333963906, Palgrave.
(2024). 9780230203686, Palgrave.
explains the multi-faceted concept of information in terms of signs and signal-sign systems. Signs themselves can be considered in terms of four inter-dependent levels, layers or branches of : pragmatics, semantics, syntax, and empirics. These four layers serve to connect the social world on the one hand with the physical or technical world on the other.

is concerned with the purpose of communication. Pragmatics links the issue of signs with the context within which signs are used. The focus of pragmatics is on the intentions of living agents underlying communicative behaviour. In other words, pragmatics link language to action.

is concerned with the meaning of a message conveyed in a communicative act. Semantics considers the content of communication. Semantics is the study of the meaning of signs – the association between signs and behaviour. Semantics can be considered as the study of the link between symbols and their referents or concepts – particularly the way that signs relate to human behavior.

is concerned with the formalism used to represent a message. Syntax as an area studies the form of communication in terms of the logic and grammar of sign systems. Syntax is devoted to the study of the form rather than the content of signs and sign systems.

Nielsen (2008) discusses the relationship between semiotics and information in relation to dictionaries. He introduces the concept of lexicographic information costs and refers to the effort a user of a dictionary must make to first find, and then understand data so that they can generate information.

Communication normally exists within the context of some social situation. The social situation sets the context for the intentions conveyed (pragmatics) and the form of communication. In a communicative situation intentions are expressed through messages that comprise collections of inter-related signs taken from a language mutually understood by the agents involved in the communication. Mutual understanding implies that agents involved understand the chosen language in terms of its agreed syntax and semantics. The sender codes the message in the language and sends the message as signals along some communication channel (empirics). The chosen communication channel has inherent properties that determine outcomes such as the speed at which communication can take place, and over what distance.

The application of information study
The information cycle (addressed as a whole or in its distinct components) is of great concern to information technology, information systems, as well as information science. These fields deal with those processes and techniques pertaining to information capture (through ) and generation (through , or composition), (including encoding, encryption, compression, packaging), transmission (including all telecommunication methods), presentation (including visualization / methods), (such as magnetic or optical, including holographic methods), etc.

Information visualization (shortened as InfoVis) depends on the computation and digital representation of data, and assists users in pattern recognition and anomaly detection.

Information security (shortened as InfoSec) is the ongoing process of exercising due diligence to protect information, and information systems, from unauthorized access, use, disclosure, destruction, modification, disruption or distribution, through algorithms and procedures focused on monitoring and detection, as well as incident response and repair.

is the process of inspecting, transforming, and modeling information, by converting raw data into actionable knowledge, in support of the decision-making process.

Information quality (shortened as InfoQ) is the potential of a dataset to achieve a specific (scientific or practical) goal using a given empirical analysis method.

Information communication represents the convergence of informatics, telecommunication and audio-visual media & content.

See also
  • Accuracy and precision
  • Classified information
  • Complex adaptive system
  • Data storage device#Recording media
  • Engram
  • Free Information Infrastructure
  • Freedom of information
  • Information and communication technologies
  • Information architecture
  • Information broker
  • Information continuum
  • Information ecology
  • Information engineering
  • Information geometry
  • Information inequity
  • Information infrastructure
  • Information management
  • Information metabolism
  • Information overload
  • Information quality (InfoQ)
  • Information science
  • Information sensitivity
  • Information superhighway
  • Information technology
  • Information theory
  • Information warfare
  • Lexicographic information cost
  • Philosophy of information
  • Quantum information
  • Receiver operating characteristic

Further reading
  • Machlup, F. and U. Mansfield, The Study of information : interdisciplinary messages. 1983, New York: Wiley. xxii, 743 p.
  • (1987). 9780275926984, Greenwood Publishing Group.
  • (2024). 9781118874448, John Wiley and Sons.

External links

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