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[1104.5466] Notes on a New Philosophy of Empirical Science
This book presents a methodology and philosophy of empirical science based on large scale lossless data compression. In this view a theory is scientific if it can be used to build a data compression program, and it is valuable if it can compress a standard benchmark database to a small size, taking into account the length of the compressor itself. This methodology therefore includes an Occam principle as well as a solution to the problem of demarcation. Because of the fundamental difficulty of lossless compression, this type of research must be empirical in nature: compression can only be achieved by discovering and characterizing empirical regularities in the data. Because of this, the philosophy provides a way to reformulate fields such as computer vision and computational linguistics as empirical sciences: the former by attempting to compress databases of natural images, the latter by attempting to compress large text databases. The book argues that the rigor and objectivity of the compression principle should set the stage for systematic progress in these fields. The argument is especially strong in the context of computer vision, which is plagued by chronic problems of evaluation.
The book also considers the field of machine learning. Here the traditional approach requires that the models proposed to solve learning problems be extremely simple, in order to avoid overfitting. However, the world may contain intrinsically complex phenomena, which would require complex models to understand. The compression philosophy can justify complex models because of the large quantity of data being modeled (if the target database is 100 Gb, it is easy to justify a 10 Mb model). The complex models and abstractions learned on the basis of the raw data (images, language, etc) can then be reused to solve any specific learning problem, such as face recognition or machine translation.
compression  empirical  science  ML-theory 
28 days ago by foodbaby
Jordan Peterson is Wrong About the Case for the Left
I suggest that the tension of which he speaks is fully formed and self-contained completely within conservatism. Balancing those two forces is, in fact, what conservatism is all about. Thomas Sowell, in A Conflict of Visions: Ideological Origins of Political Struggles describes the conservative outlook as (paraphrasing): “There are no solutions, only tradeoffs.”

The real tension is between balance on the right and imbalance on the left.

In Towards a Cognitive Theory of Polics in the online magazine Quillette I make the case that left and right are best understood as psychological profiles consisting of 1) cognitive style, and 2) moral matrix.

There are two predominant cognitive styles and two predominant moral matrices.

The two cognitive styles are described by Arthur Herman in his book The Cave and the Light: Plato Versus Aristotle, and the Struggle for the Soul of Western Civilization, in which Plato and Aristotle serve as metaphors for them. These two quotes from the book summarize the two styles:

Despite their differences, Plato and Aristotle agreed on many things. They both stressed the importance of reason as our guide for understanding and shaping the world. Both believed that our physical world is shaped by certain eternal forms that are more real than matter. The difference was that Plato’s forms existed outside matter, whereas Aristotle’s forms were unrealizable without it. (p. 61)

The twentieth century’s greatest ideological conflicts do mark the violent unfolding of a Platonist versus Aristotelian view of what it means to be free and how reason and knowledge ultimately fit into our lives (p.539-540)

The Platonic cognitive style amounts to pure abstract reason, “unconstrained” by reality. It has no limiting principle. It is imbalanced. Aristotelian thinking also relies on reason, but it is “constrained” by empirical reality. It has a limiting principle. It is balanced.

The two moral matrices are described by Jonathan Haidt in his book The Righteous Mind: Why Good People Are Divided by Politics and Religion. Moral matrices are collections of moral foundations, which are psychological adaptations of social cognition created in us by hundreds of millions of years of natural selection as we evolved into the social animal. There are six moral foundations. They are:

Care/Harm
Fairness/Cheating
Liberty/Oppression
Loyalty/Betrayal
Authority/Subversion
Sanctity/Degradation
The first three moral foundations are called the “individualizing” foundations because they’re focused on the autonomy and well being of the individual person. The second three foundations are called the “binding” foundations because they’re focused on helping individuals form into cooperative groups.

One of the two predominant moral matrices relies almost entirely on the individualizing foundations, and of those mostly just care. It is all individualizing all the time. No balance. The other moral matrix relies on all of the moral foundations relatively equally; individualizing and binding in tension. Balanced.

The leftist psychological profile is made from the imbalanced Platonic cognitive style in combination with the first, imbalanced, moral matrix.

The conservative psychological profile is made from the balanced Aristotelian cognitive style in combination with the balanced moral matrix.

It is not true that the tension between left and right is a balance between the defense of the dispossessed and the defense of hierarchies.

It is true that the tension between left and right is between an imbalanced worldview unconstrained by empirical reality and a balanced worldview constrained by it.

A Venn Diagram of the two psychological profiles looks like this:
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july 2018 by nhaliday
A Quantitative Analysis of Current Practices in Optical Flow Estimation and the Principles Behind Them
A large survey of variations to the original variational solution to optical flow (Horn and Schunck), with quantitative analysis of the effects of featurettes added with time.
coink  computer  vision  optical  flow  empirical  survey 
june 2018 by paunit
The Interpersonal-Psychological Theory of Suicidal Behavior: Current Empirical Status
The interpersonal-psychological theory of suicidal behavior (Joiner, 2005) proposes that an individual will not die by suicide unless s/he has both the desire to die by suicide and the ability to do so. What is the desire for suicide, and what are its constituent parts? What is the ability to die by suicide and in whom and how does it develop?
suicide  psychology  deliberate  self-harm  DSH  Thomas  Joiner  ThomasJoiner  theory  behavior  behaviour  empirical  APA 
june 2018 by userX
The Religions of the Three Castes – The Neo-Ciceronian Times
The sudra caste is that which is most fitted to physical labor and bodily exercise and, as noted above, occupies the lowest position in the social hierarchy. The sudra soul is characterized by a sensual approach to life and tends to exhibit short time preferences. Thus, sudra are most often concerned with gross physical satisfaction and instant gratification. It is not surprising that it is among individuals of this caste that drug addiction, property crimes, and alcoholism are the most prevalent.

As a result, sudra religion tends to focus on feedbacks relating to the body and to the satisfaction of felt needs. It tends to be characterized the most by fleshly music, swaying, rhythmic movements, and the like. It also inclines toward specific concerns about health and physical safety, day by day provision, and so forth. Again, keep in mind that there is nothing about this that is necessarily “bad.” These are things appropriate to this caste which reflect its character and which enable it to fulfill its roles in society.

The vaisya caste is that which is most fitted to the soulish/psychical occupations which involve money and finance, technics, science, and production. The psychology of this caste involves a propensity toward materialism, empiricism, and a focus on what can be seen and felt over the intangible and faith-oriented. This caste emphasizes the pragmatic benefits provided by entrepreneurship and science, as well as exhibiting the long time preferences which enable those fields of endeavor to be successful.

The vaisya carry these concentrations over into the religious realm. Religion for the vaisya consists primarily in what can be seen and touched, whether as tangible benefits deriving from religious piety or as aids in worship itself. The intercession of gods or demigods into specific areas of life (usually pertaining to wealth or business) is considered necessary for success in those fields. Vaisya religion tends to require the reification of religious experience, rather than taking matters of religion on faith. Indeed, pure spiritualism or symbolism in religion is considered unreal, and therefore not truly efficacious.

The aristocratic caste (brahman and kshatriyan considered together) is the noble caste, and thus its tendencies are those that concern leadership and guidance, a desire to guide others in the right way. This caste tends to be focused more on eternal truths (whether specifically pertaining to religion or otherwise), and is subconsciously, and perhaps even divinely, guided toward the polar and axial tendencies which have been described by Evola in numerous places. As such, the aristocratic caste eschews materialism and the grasping for pecuniary gain and democratic political power. Instead, its focus tends to be on intangible qualities of excellence and spiritual alignment with divine and eternal realities.

Thus, aristocratic religion tends to focus more on faith and accord with spiritual realities and truths. This caste attempts to see “the reality behind the image” and is concerned with direct connection with the Divine. It will often emphasize the role of written and spoken revelation (holy books and preaching) as the means of bridging the gap between the Divine and man, ways which are used by the Divine to express His eternal laws and truths, with which man is expected to come into accord and which must be accepted through spiritual faith. The aristocratic caste, whether as priest or as king/ruler, seeks to lead and guide their people into harmony with the eternal truths espoused by religion. This caste is scrupulous to uphold the rites, while at the same time grasping and teaching the deeper spiritual realities represented by those rites.
gnon  religion  theos  gavisti  class  egalitarianism-hierarchy  military  martial  aristos  labor  things  phalanges  mystic  ascetic  empirical  new-religion  pragmatic  time-preference  embodied  realness  leadership  leviathan  sanctity-degradation  elite  social-structure  culture  society 
may 2018 by nhaliday
High male sexual investment as a driver of extinction in fossil ostracods | Nature
Sexual selection favours traits that confer advantages in the competition for mates. In many cases, such traits are costly to produce and maintain, because the costs help to enforce the honesty of these signals and cues1. Some evolutionary models predict that sexual selection also produces costs at the population level, which could limit the ability of populations to adapt to changing conditions and thus increase the risk of extinction2,3,4.
study  org:nat  bio  evolution  selection  sex  competition  cost-benefit  unintended-consequences  signaling  existence  gender  gender-diff  empirical  branches  rot  modernity  fertility  intervention  explanans  humility  status  matching  ranking  ratty  hanson 
april 2018 by nhaliday
Fixing Faults in C and Java Source Code: Abbreviated vs. Full-word Identifier Names
We carried out a family of controlled experiments to investigate whether the use of abbreviated identifier names, with respect to full-word identifier names, affects fault fixing in C and Java source code. This family consists of an original (or baseline) controlled experiment and three replications. We involved 100 participants with different backgrounds and experiences in total. Overall results suggested that there is no difference in terms of effort, effectiveness, and efficiency to fix faults, when source code contains either only abbreviated or only full-word identifier names. We also conducted a qualitative study to understand the values, beliefs, and assumptions that inform and shape fault fixing when identifier names are either abbreviated or full-word. We involved in this qualitative study six professional developers with one to three years of work experience. A number of insights emerged from this qualitative study and can be considered a useful complement to the quantitative results from our family of experiments. One of the most interesting insight is that developers, when working on source code with abbreviated identifier names, adopt a more methodical approach to identify and fix faults by extending their focus point and only in a few cases they expand abbreviated identifiers.
c  java  empirical  softwareengineering 
january 2018 by iamleeg

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