Department of History

Ashoka University is a private university located in Sonipat, Haryana, India, focusing on liberal arts and sciences. It was established in 2014.&nbsp;It is guided by an academic council of academics and scholars from around the world. The council sets the university&#39;s academic standard, advising on matters of curriculum, faculty hiring and research.&nbsp;

Ashoka University offers a full-time 3 (+ 1) year undergraduate programme. The University comprises of&nbsp;2500 plus students, with a mix of both national and international students.&nbsp; &nbsp;

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Ashoka University

In the past few years, substantial research has been conducted to find out the anomalies present in the real-world business processes. Existing research either uses process mining techniques or discrete sequence-based anomaly detection techniques. The bugfixing process of various open-source projects has been analyzed previously to discover the process inefficiencies using process mining techniques. These works exploit generic process mining tools to create the process models. Also, they did not evaluate the performance of their proposed conformance checking algorithms. In addition to these, the discrete sequence-based analogy and anomaly detection techniques are not discussed in the bug-fixing process context. In this paper, we report a bug-fixing process dataset for 30 Apache open-source projects that use JIRA bug tracking system for bug reporting. This real-world dataset is analyzed to discover the anomalous process sequences and the root cause of anomalies. The contributions of this paper include (i) a formalized approach for pre-processing and transforming the bug report history data, from bug tracking systems into event logs, suitable for process analysis; (ii) a process mining based anomaly detection framework for bug-fixing processes that comprises our proposed algorithms for process discovery and conformance checking; and (iii) an artificial labelled process dataset available at Mendeley open-source dataset repository ( doi:10.17632/5yb2xv93w3.1). © 2020 Association for Computing Machinery.

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Other Publications

ACM International Conference Proceeding Series

Control-flow based anomaly detection in the bug-fixing process of open-source projects

Department of Environmental Studies

The Killing of Maya in a Lake: Caste, Culture and Nature

In order to understand the structure of the "typical" element of an automorphism group, one has to study how large the conjugacy classes of the group are. For the case when typical is meant in the sense of Baire category, Truss proved that there is a co-meagre conjugacy class in Aut(Q,&lt;), the automorphism group of the rational numbers. Following Dougherty and Mycielski we investigate the measure-theoretic dual of this problem, using Christensen's notion of Haar null sets. We give a complete description of the size of the conjugacy classes of the group Aut((Q,&lt;) with respect to this notion. In particular, we show that there exist continuum many non-Haar-null conjugacy classes, illustrating that the random behaviour is quite different from the typical one in the sense of Baire category. © Instytut Matematyczny PAN, 2020.

Fundamenta Mathematicae

The structure of random automorphisms of the rational numbers

Quenched disorder affects translational and orientational correlations in two-dimensional interacting particle systems. Such disorder always suppresses orientational order in crystalline states. Surprisingly, in fluid phases of particles interacting with a power-law repulsive interaction, increasing the strength of a quenched Gaussian random pinning potential appears to enhance hexatic order locally. We propose that nearby pairs of pinned particles lock in the relative orientation of neighbours around them, propagating hexatic orientational order across larger distances than in the unpinned fluid. We test this idea using Monte Carlo simulations of interacting particles in their fluid phase in two dimensions, where two of the particles are constrained to be permanently pinned at a fixed distance from each other. We use Voronoi tesselations of instantaneous particle configurations to demonstrate that these pinned particles create hexatic neighbourhoods that can extend well beyond the range of their separation. This structuring is enhanced when the particle density is increased and is most prominent in the vicinity of the liquid-solid transition. Testing these ideas experimentally using experiments on 2D colloidal systems should be feasible.

Department of Biology

Journal of Physics Condensed Matter

Disorder-induced enhancement of local hexatic correlations in two-dimensional fluids

India imposed one of the strictest lockdowns in the world to contain the spread of COVID-19 pandemic. According to the Stringency Index developed by the Blavatnik School of Government at the University of Oxford, by the 25th of March, 2020, India had already reached the highest possible level of stringency (index value = 100). This involved a near-complete shutdown of all economic activity. What were the labour market implications of this shutdown? The first-order effects are evident in the massive increase in total unemployment. However, is the pandemic and its aftermath a great leveller? Are the labour implications of the lockdown gender neutral? How did the lockdown affect domestic time allocation, in particular time spent on domestic work and with friends? Were these changes gender neutral, given that the lockdown was gender blind?

Department of Economics

Fulltext

Indian Journal of Labour Economics

Early Effects of Lockdown in India: Gender Gaps in Job Losses and Domestic Work

In trying to assemble the structure through which bilateral relations between India and Pakistan could be conducted, policy makers drew heavily from European models of inter-state peace-making evolved in the inter-war decades. The aftermath of the break-up of large multinational empires along ethnic-majoritarian lines posed administrative questions that were, in many ways, also similar to the aftermath of the partition of the subcontinent along religious lines. In this article, I attempt to relate these developments with the signing of the Nehru–Liaquat Pact of 1950, between the governments of India and Pakistan. According to this Pact, both governments would now be accountable to one another for the protection of their minorities in the Bengal province. I argue that this approach to dealing with the question of minority populations after a partition, had been initially developed by the League of Nations and that emulating these models were part of an attempt by India and Pakistan to borrow from, but also further refine models of European statehood for their own purposes after their partition. This article attempts to evaluate the extent to which these expectations were met in the making of a ‘minorities' regime' in South Asia.

Department of International Relations

International History Review

Partition: An International History

We consider a supply chain where manufacturers can be differentiated along two dimensions—product quality and cost of social responsibility effort. There are two types of manufacturers: high and low. Under complete information, high-type manufacturers exert a greater level of social responsibility effort in comparison with the low-type manufacturers. We then show that under incomplete information, high-type manufacturers have an incentive to exert an even greater level of social responsibility effort. Surprisingly, the extent of effort put in by high-type firms cannot be lower and, in some cases, can be strictly higher under incomplete information.

Managerial and Decision Economics

Can incomplete information lead to better social outcomes?

One-dimensional steady-state passage of direct electric current from a binary electrolyte solution into a charge-selective solid such as a metal electrode or an ion exchange membrane is hydrodynamically unstable. Instability is preceded by concentration polarization, i.e., depletion of the electrolyte in the interface diffusion layer and it yields a microvortical flow in this layer. An ambiguity persists regarding the mechanism of this instability. The buoyant mechanisms are disregarded because instability also occurs in a gravitationally stable position and in diffusion layers too thin for buoyancy to mediate the flow. Therefore, instability is attributed to the electric forces acting in or near the interface electric double layer. These forces cause a sliplike flow known as electro-osmosis, which comes in two varieties. One is the classical equilibrium electro-osmosis related to the space charge of the electric double layer. The other is the nonequilibrium electro-osmosis related to the extended space charge that forms near the interface at high depletion. Both types of electro-osmosis may yield instability. The question is which one is at work in each particular system. The nonequilibrium electro-osmotic instability, unlike the equilibrium one, is of the short-wave type. This implies that its induced vortices are small compared to the width of the diffusion layer. Therefore, this width, which has not been clearly defined in most experiments so far, is crucial for the identification of the instability mechanism. In this paper, we report the results of our combined experimental and theoretical study of concentration polarization in a custom-designed experimental cell with a particular cation exchange membrane. As a part of our study, we investigate the recently predicted thermoelectroconvective instability. This instability is of the long-wave type and its related flow involves a pair of wide vortices spanning the diffusion layer. We experimentally retrieve this flow, which clearly marks the width of the diffusion layer. We observe that for high voltages this thermoelectroconvection is accompanied by electro-osmotic instability. Upon the background set by thermoelectroconvection, we are able to conclude that the observed electro-osmotic instability is of the short-wave type and is thus due to the nonequilibrium electro-osmosis. We suggest that a similar approach might be useful for identifying the instability mechanism in other charge-selective systems as well.

Department of Physics

Physical Review Research

Mechanisms of hydrodynamic instability in concentration polarization

Stochastic networks based on random point sets as nodes have attracted considerable interest in many applications, particularly in communication networks, including wireless sensor networks, peer-to-peer networks and so on. The study of such networks generally requires the nodes to be independently and uniformly distributed as a Poisson point process. In this work, we venture beyond this standard paradigm and investigate the stochastic geometry of networks obtained from directed spanning forests (DSF) based on randomly perturbed lattices, which have desirable statistical properties as a models of spatially dependent point fields. In the regime of low disorder, we show in 2D and 3D that the DSF almost surely consists of a single tree. In 2D, we further establish that the DSF, as a collection of paths, converges under diffusive scaling to the Brownian web.

Department of Mathematics

Journal of Statistical Physics

Transmission and Navigation on Disordered Lattice Networks, Directed Spanning Forests and Brownian Web

Convergence of directed forests, spanning on random subsets of lattices or on point processes, towards the Brownian web has made the subject of an abundant literature, a large part of which relies on a criterion proposed by Fontes, Isopi, Newman and Ravishankar (2004). One of their convergence condition, called (B2), states that the probability of the event that there exist three distinct paths for a time interval of length t (> 0), all starting within a segment of length ϵ, is of small order of ϵ. This condition is often verified by applying an FKG type correlation inequality together with a coalescing time tail estimate for two paths. For many models where paths have complex interactions, it is hard to establish FKG type inequalities. In this article, we show that for a non-crossing path model, with certain assumptions, a suitable upper bound on expected first collision time among three paths can be obtained directly using Lyapunov functions. This, in turn, provides an alternate verification of Condition (B2). We further show that in case of independent simple symmetric one-dimensional random walks or in case of independent Brownian motions, the expected value can be computed explicitly. We apply this alternate method of verification of (B2) to several models in the basin of attraction of the Brownian web studied earlier in the literature ([22], [14], [11]).