Decision trees learning is one of the most practical classification methods in machine learning, which is used for approximating discrete-valued target functions. However, they may overfit the training data, which limits their ability to generalize to unseen instances. In this study, we investigated the use of instance reduction techniques to smooth the decision boundaries before training the decision trees. Noise filters such as ENN, RENN, and ALLKNN remove noisy instances while DROP3 and DROP5 may remove genuine instances. Extensive empirical experiments (...) were conducted on 13 benchmark datasets from UCI machine learning repository with and without intentionally introduced noise. Empirical results show that eliminating border instances improves the classification accuracy of decision trees and reduces the tree size, which reduces the training and classification times. In datasets without intentionally added noise, applying noise filters without the use of the built-in Reduced Error Pruning gave the best classification accuracy. ENN, RENN, and ALLKNN outperformed decision trees learning without pruning in 9, 9, and 8 out of 13 datasets, respectively. The datasets reduced using ENN and RENN without built-in pruning were more effective when noise was intentionally introduced in different ratios. (shrink)

The study investigates the effect of board characteristics and firm performance on disclosure tones by considering DICTION five master variables namely activity, optimism, certainty, realism and commonality tones using a sample of 779 annual reports of GCC listed firms (2012 to 2018). Disclosure tones of the sampled GCC firms were measured through corporate narrative disclosures by DICTION 7.0 software. Then, the ordinary least square regression analysis was conducted. The main findings of the study show that firm performance has a significant (...) effect on disclosure tones in terms of activity, optimism, certainty, and realism tones except for commonality reported tone. Board characteristics have different effects on the five disclosure tones. The study offers a unique contribution to accounting literature as it is one of the first studies in the Gulf region that seeks to examine the relationship between disclosure tones and firm performance as well as board governance. (shrink)

The relationship between Peircean abduction and the modern notion of Inference to the Best Explanation is a matter of dispute. Some philosophers, such as Harman :88–95, 1965) and Lipton, claim that abduction and IBE are virtually the same. Others, however, hold that they are quite different :503, 1998; Minnameier in Erkenntnis 60:75–105, 2004) and there is no link between them :419–442, 2009). In this paper, I argue that neither of these views is correct. I show that abduction and IBE have (...) important similarities as well as differences. Moreover, by bringing a historical perspective to the study of the relationship between abduction and IBE—a perspective that is lacking in the literature—I show that their differences can be well understood in terms of two historic developments in the history of philosophy of science: first, Reichenbach’s distinction between the context of discovery and the context of justification—and the consequent jettisoning of the context of discovery from philosophy of science—and second, underdetermination of theory by data. (shrink)

Many non-physicalists, including Chalmers, hold that the zombie argument succeeds in rejecting the physicalist view of consciousness. Some non-physicalists, including, again, Chalmers, hold that quantum collapse interactionism, i.e., the idea that non-physical consciousness causes collapse of the wave function in phenomena such as quantum measurement, is a viable interactionist solution for the problem of the relationship between the physical world and the non-physical consciousness. In this paper, I argue that if QCI is true, the zombie argument fails. In particular, I (...) show that if QCI is true, a zombie world physically identical to our world is impossible because there is at least one law of nature, a fundamental law of physics in particular, that exist only in the zombie world but not in our world. This shows that philosophers like Chalmers are committing an error in endorsing the zombie argument and QCI at the same time. (shrink)

I examine and resolve an exegetical dichotomy between two main interpretations of Peirce’s theory of abduction, namely, the Generative Interpretation and the Pursuitworthiness Interpretation. According to the former, abduction is the instinctive process of generating explanatory hypotheses through a mental faculty called insight. According to the latter, abduction is a rule-governed procedure for determining the relative pursuitworthiness of available hypotheses and adopting the worthiest one for further investigation—such as empirical tests—based on economic considerations. It is shown that the Generative Interpretation (...) is inconsistent with a fundamental fact of logic for Peirce—i.e., abduction is a kind of inference—and the Pursuitworthiness Interpretation is flawed and inconsistent with Peirce’s naturalistic explanation for the possibility of science and his view about the limitations of classical scientific method. Changing the exegetical locus classicus from the logical form of abduction to insight and economy of research, I argue for the Unified Interpretation according to which abduction includes both instinctive hypotheses-generation and rule-governed hypotheses-ranking. I show that the Unified Interpretation is immune to the objections raised successfully against the Generative and the Pursuitworthiness interpretations. (shrink)

I argue that if simplicity is a theoretical virtue and some theoretical virtues are the constituents of the aims of theorizing in physics—i.e., theory choice and theory development in physics—and scientific rationality is instrumental rationality, then simplicity cannot be a mere means to achieve the aims. I do this by showing that considering simplicity as a mere means brings about counterintuitive ramifications concerning scientific rationality. These counterintuitive ramifications can be avoided if we consider simplicity a constituent of the aims of (...) theorizing in physics. (shrink)

Bird reveals an important problem at the heart of Armstrong’s theory of laws of nature: to explain how a law necessitates its corresponding regularity, Armstrong is committed to a vicious regress. In his very brief response, Armstrong gestures towards an argument that, as he admits, is more of a “speculation.” Later, Barker and Smart argue that a very similar problem threatens Bird’s dispositional monist theory of laws of nature and he is committed to a similar vicious regress. In this paper, (...) first, I construct Armstrong’s would-be argument in response to Bird. Second, I argue that his response makes his account of laws and natural properties incompatible with science. Finally, I argue that Armstrong’s strategy to address Bird’s criticism can be used, quite ironically, to defuse Barker and Smart’s argument against Bird. (shrink)

Multiculturalism has become a central theme in many academic disciplines from philosophy to education, social work and psychology, ultimately reaching political science and law. What seems to be unique in current studies on multiculturalism is not merely the observance and display of societies that happen to be diverse in terms of the religious, cultural, national and ethnic affiliation of their members. Rather, it is the central argument that such divergence is legitimate and should be accommodated. Accepting other groups in society (...) and the legitimacy of accommodating them has become a virtue of tolerance.This paper argues that we must first look into multicultural theory itself to discover what can be called ‘multicultural qualifications’. These are in essence pre-conditions without the presence of which group accommodations, even if granted based on group membership, should not be considered as multicultural in nature. With multicultural theory as a backdrop, this article intends to identify such multicultural qualifications. The Palestinian-Arab minority in Israel is studied in its constellation as both a national minority group and as a religiously diverse group as an object for testing the application of the identified multicultural qualifications. (shrink)

This research implements a recent evolutionary-based algorithm of equilibrium optimizer to resolve the constrained combined economic emission dispatch problem. This problem has two objective functions that represent the minimizing of generation costs and minimizing the emission of environmental pollution caused by generators. The proposed algorithm integrates the dominant criteria for multiobjective functions that allow the decision-maker to detect all the Pareto boundaries of constrained combined economic emission dispatch problem. In order to save the effort for the decision-maker to select the (...) best compromise alternative, a cluster study was carried out to minimize the size of the Pareto boundary to an acceptable size, representing all the characteristics of the main Pareto frontier. On the other hand, in order to deal with the infringement of constraints, a repair algorithm was used to preserve the viability of the particles. The proposed algorithm is applied to solve the standard 30-bus IEEE system with 6 generators to validate its robustness and efficiency to produce a well-distributed Pareto frontier for constrained combined economic emission dispatch problem. Compared with other studies, good results in solving constrained combined economic emission dispatch problem are obtained and a reasonable reduced Pareto set is found. (shrink)

Multiculturalism has become a central theme in many academic disciplines from philosophy to education, social work and psychology, ultimately reaching political science and law. What seems to be unique in current studies on multiculturalism is not merely the observance and display of societies that happen to be diverse in terms of the religious, cultural, national and ethnic affiliation of their members. Rather, it is the central argument that such divergence is legitimate and should be accommodated. Accepting other groups in society (...) and the legitimacy of accommodating them has become a virtue of tolerance.This paper argues that we must first look into multicultural theory itself to discover what can be called ‘multicultural qualifications’. These are in essence pre-conditions without the presence of which group accommodations, even if granted based on group membership, should not be considered as multicultural in nature. With multicultural theory as a backdrop, this article intends to identify such multicultural qualifications. The Palestinian-Arab minority in Israel is studied in its constellation as both a national minority group and as a religiously diverse group as an object for testing the application of the identified multicultural qualifications. (shrink)

PurposeThe purpose of this paper was to develop a framework of working-together relations and investigate ways to enhance working-together relations among people, organisations, communities and neighbourhoods using working-together applications. Today, people in communities, neighbourhoods and constituencies often work together in a coalition of public, private and non-profit institutions. The technology used today has enabled new forms of communications and collaboration. The rapid growth of mobile technologies and interactive, collaborative applications based on Web technologies has enabled the development of new approaches (...) to derive and share organisational and local knowledge. Not all of these applications have succeeded; after a certain time, users tend to stop using online applications that do not assist them in developing collaborative practices with their team members.Design/methodology/approachTo better understand the essential characteristics of a successful online application that effectively supports people to work together, the authors undertook an inductive analysis of related literature and existing social media application.FindingsBy combining and categorising the findings, it was possible to articulate the characteristics associated with four identified categories of working-together relations: networking, coordination, cooperation and collaboration. The study also identified essential activities that are performed in each working-together category and the factors that enable successful working-together relations: trust, risk and rewards.Research limitations/implicationsFuture studies will look into how applications could be further enhanced, so that, for example, an application that is currently classified as “coordination” could be improved and the required characteristics of “collaboration” could be met.Practical implicationsIt is expected that the framework derived will assist in the design of successful online applications to support different categories of working-together relations.Originality/valueThe main contribution of this study is a new framework that can now be used to identify how effective an existing application can be in assisting the working-together relations. (shrink)

One of the many notable virtues of Igor Douven's The Art of Abduction is that it is open access. Since a well-written chapter-by-chapter overview of the book is.

Maḥmūd, Zakī Najīb; 1905- ; philosophy; criticism and interpretation.

International Institute of Islamic Thought; Islam; essence, genius, nature; history.

As emphasised in Islamic sources, justice is one of the most important issues covered in the religion of Islam. In fact, justice is a central theme in Islam and has a special value in this regard. Conversation about justice and its nature, as well as its realisation in human communities, has been thus far a necessity in human life. Actually, the establishment and implementation of justice in all areas are crucial for the utopia. Given the importance of this subject, the (...) present study aims to determine and explain the components of the justice-oriented Islamic community based on the teachings of Nahj al-Balaghah. Therefore, the components that introduce justice orientation in the Islamic community are extracted from the sermons, letters and wise sayings (viz. narrations) of Nahj al-Balaghah. Afterward, the extracted components are classified based on the similarity of the themes and concepts. In the end, five classifications are introduced, including distributive justice, procedural justice, interactional justice, social justice and fairness.Contribution: Based on the determined indices, the model of justice-oriented Islamic community is developed. It is thus recommended to pay more attention to the realisation of a justice-oriented Islamic community by researchers and leaders. This is mainly because of the fact that the opposite of a justice-oriented community is one with injustice, where oppression and disrespect for the rights of others occur, divine blessings change, divine wrath and anger are provoked and destruction approaches. (shrink)

al-kitāb 1. al-Nasq al-ʻilmī lil-manẓūr al-ẓāhirī lil-ʻulūm al-ijtimāʻīyah -- al-kitāb 2. [Taṭbīqāt al-nasq al-ʻilmī lil-manẓūr al-ẓāhirī fī majāl al-ʻulūm al-ijtimāʻīyah].

In The Mysteries of Purification (Kitab asrar al tahara), the third of the forty books of the Revival of the Religious Sciences (Ihya' 'ulum al-din), Abu Hamid al-Ghazali explains the fundamentals of the purification that is necessary in order to perform the five daily prayers. The book begins with an introduction to the general topic of purity. Al-Ghazali explains the hadith "Purification is half of faith," and reminds readers that, for the earliest Muslims, inner purification was much more important than (...) outer purification. In chapter 1, he considers purification from impurities: What are the impurities and how should they be removed? Over the following chapters, al-Ghazali examines the lesser ablution (wudu), the greater ablution (ghusl), and the "dry ablution" (ablution without water, or tayammum). He discusses the etiquette of the bathhouse and outlines exactly how to clean the body of external things and natural growths; finally, he discusses the beard and practices related to it. (shrink)

Machiavelli, Niccolò, 1469-1527; political views; political science; international relations; philosophy.