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Journal Articles | 2017

HMiner: Efficiently mining high utility itemsets

Srikumar Krishnamoorthy

Expert Systems with Applications

High utility itemset mining problem uses the notion of utilities to discover interesting and actionable patterns. Several data structures and heuristic methods have been proposed in the literature to efficiently mine high utility itemsets. This paper advances the state-of-the-art and presents HMiner, a high utility itemset mining method. HMiner utilizes a few novel ideas and presents a compact utility list and virtual hyperlink data structure for storing itemset information. It also makes use of several pruning strategies for efficiently mining high utility itemsets. The proposed ideas were evaluated on a set of benchmark sparse and dense datasets. The execution time improvements ranged from a modest thirty percent to three orders of magnitude across several benchmark datasets. The memory consumption requirements also showed up to an order of magnitude improvement over the state-of-the-art methods. In general, HMiner was found to work well in the dense regions of both sparse and dense benchmark datasets.

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Journal Articles | 2017

Sentiment analysis of financial news articles using performance indicators

Srikumar Krishnamoorthy

Knowledge and Information Systems

Mining financial text documents and understanding the sentiments of individual investors, institutions and markets is an important and challenging problem in the literature. Current approaches to mine sentiments from financial texts largely rely on domain-specific dictionaries. However, dictionary-based methods often fail to accurately predict the polarity of financial texts. This paper aims to improve the state-of-the-art and introduces a novel sentiment analysis approach that employs the concept of financial and non-financial performance indicators. It presents an association rule mining-based hierarchical sentiment classifier model to predict the polarity of financial texts as positive, neutral or negative. The performance of the proposed model is evaluated on a benchmark financial dataset. The model is also compared against other state-of-the-art dictionary and machine learning-based approaches and the results are found to be quite promising. The novel use of performance indicators for financial sentiment analysis offers interesting and useful insights.

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Journal Articles | 2017

Replicating small farms, prosperous farmers in India: Lessons for policy and practice

Sukhpal Singh

Journal of Agribusiness Marketing

Small farm and small farmer viability has been a constant policy concern in India given its smallholder-dominated agriculture. Though there are different definitions of small farm in the literature, depending on local context, the term “smallholder” is a relative one in that it refers to the limited resource endowments of such farmers relative to those of other farmers in the sector in each local context. The Indian small farmers are in a state of agrarian distress, and the farmers’ quest for earning enough from a small farm continues. It is in this context of academic and policy discourse that this article makes evidence-based policy and practical recommendations for replicating the Small Farmer, Prosperous Farmer (SFPF) models of agricultural development in India based on empirical case studies of 35 small (who were just 2 hectares or smaller farm operators) and prosperous farmers (earning at least one lakh (0.1 million)Indian rupees per acre per year) across three states of India— Punjab, Gujarat, and Maharashtra. Major objectives of the study carried out in 2012 were as follows: document profiles of SFPFs in terms of their resources, costs, and profits; provide evidence of success (in terms of net income and prosperity) given small holdings; identify major factors in prosperity/success—personal, institutional, and social; and understand the role of policy and business environment, if any; and infer on possibilities of replicability of SFPF success given the other contextual factors in other regions. The study identifies sources of success and policy relevance of such factors for making inclusive agricultural development possible.

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Journal Articles | 2017

How inclusive and effective are farm machinery rental services in India? Case Studies from Punjab

Sukhpal Singh

Indian Journal of Agricultural Economics

Increasing cost of cultivation in most parts of India has led to the realisation that mechanisation of farm operations is one of the ways to tackle it as mechanical solutions are more efficient as well as cost effective compared with human labour based activities in most situations. However, given small farm dominance of Indian agriculture, it is not possible and viable for small farmers to own farm machinery and equipment for its use. Therefore, what they need is access to it, and not ownership. This has led to a new phenomenon of custom rental services of farm machinery and equipment in many parts of India by a range of players like co-operatives, private entrepreneurs, organised sector players and even producer companies. In this context of changing landscape of farm mechanisation, the paper examines the small holder inclusiveness of agro machinery rental service channels and the nature and the level of their effectiveness in helping the farmers access better services. It compares the performance of co-operative, private organised and local informal service providers in Punjab and identifies major issues and challenges in delivery of such services across types of farmers and examines the possible policy and enabling provisions to promote cost and quality effective custom rentals of farm machinery in India.

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Journal Articles | 2017

Gendered BoP hygiene markets in rural India: A case study of social entrepreneurship and social innovation

Sukhpal Singh

The Hong Kong Journal of Social Work

Water scarcity and non-existent or poor sanitation have special implications for the poor in a rural context of a developing country such as India, especially in the case of women due to their personal hygiene needs. The penetration of sanitary napkins is very low in Indian villages for reasons such as the high cost of branded napkins, availability, and cultural barriers. Over 88% of rural women use unhygienic alternatives during menstruation, with 77% using a piece of old cloth and many others nothing at all. These practices lead to a deterioration in health of the mother as well as the child and, sometimes, the death of the mother. Furthermore, a large proportion of girls in India do not go to school during their menstruation period, for an average of 4–5 days every month, and at least 23% of girls drop out of school when they start menstruating. Adult women cut down on their productive day-to-day activities. Menstruating lower-income women also have to follow certain social exclusion norms and treat it as a purely private matter as it is considered a social taboo. The access to personal reproductive hygiene products and services thus becomes indispensable in terms of addressing hygiene and sanitation needs. Furthermore, this is more of a developmental/social venture rather than just pure rural marketing. This paper examines the issue from a social enterprise and social innovation perspective in order to understand the issues involved in changing the situation. It examines the case of a social venture in India (Goonj) which has attempted to deal with this market in terms of its approach, product design, market creation, performance, issues faced, and impact made. The paper attempts to infer lessons for making social entrepreneurship and social innovations work in developing country health and hygiene contexts in the form of a Bottom of Pyramid (BoP) market solution.

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Journal Articles | 2017

Addressing the agrarian crisis in Punjab: Role of agro-markets and Policy

Sukhpal Singh

Economic and Political Weekly: A Journal of Current Economics and Political Affairs

The state of agricultural markets, the agricultural market policy and regulatory reforms in Punjab are reviewed in the context of the agrarian crisis. The farmer and farm worker manifesto of the Aam Aadmi Party is critically assessed. Policy mechanisms for agro-industrial development of the state are suggested.

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Journal Articles | 2017

Tenancy reforms: A critique of NITI Aayog’s Model Law

Sukhpal Singh

Economic and Political Weekly: A Journal of Current Economics and Political Affairs

There is no doubt that the agricultural land leasing laws in India need to be amended to make land leasing legal and easier. The Niti Aayog report (2016) proposes a formal model law on land leasing. Critically examining the logic for liberalisation of land leasing laws, the limitations of the model lease agreement are brought out. It is argued that the model law ignores the diversity and dynamics of leasing arrangements in India and the socio-economic implications of the realities of tenancy practices.

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Journal Articles | 2017

Case-Optimal Movement Plan of rice in the state of Andhra Pradesh in India

Sundaravalli Narayanaswami and N. Ravichandran

Informs Transactions on Education

The case discusses an optimal movement plan for food grains (rice) by a state sponsored agency, the Food Corporation of India (FCI) in the State of Andhra Pradesh in India. There are five resource locations and eleven demand locations in this distribution network. Resource capacity and demand requirement for the three product (rice) variants at each location are known. There is no storage capacity restriction either in the demand or source location. Information related to rail network, its connectivity, distance in kilometers between origin-destination pairs, cost of transportation per tonne of food grain by rail or road are known. The primary issue is to develop a monthly movement plan to minimize the overall transportation costs subject to meeting the demand-supply restrictions. The total supply available for distribution and the total requirement at various locations are both equal at the product variant and aggregate level. The secondary issue is to develop an alternative movement plan to fulfil the demand requirements at a location, Karimnagar, which does not have a direct rail connection. Few plans are proposed to resolve the issues; the case encourages analysis of the problem situation and evaluation of the alternate resolution plans.

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Journal Articles | 2017

Does strategic planning determine innovation in organizations? A study of Indian SME sector

Safal Batra, Sunil Sharma, Mukund M. Dixit, and Neharika Vohra

Australian Journal of Management

While some researchers argue that strategic planning assists new product development and can be viewed as a framework for innovation, others believe that it restricts creativity and innovation. Despite a literary appreciation that strategic planning is linked to innovation, the nature of this relationship remains ambiguous. In this study, we argue that this relationship is context dependent and contingent on other organizational factors. Data for this study were collected by administering standardized survey questionnaires to entrepreneurs or other senior executives of small and medium businesses in India. Quantitative analysis of data obtained from 162 small- and medium-sized enterprises (SMEs) in the manufacturing sector reveals a positive relationship between strategic planning and innovation. This study also establishes a significant positive moderating role of commitment to learning on the relationship between strategic planning and innovation. Implications for theory and practice are discussed.

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Books | 2017

Business leadership and law, New Delhi

Agarwal and A. K.

Springer