34,763 research outputs found
Salience and Market-aware Skill Extraction for Job Targeting
At LinkedIn, we want to create economic opportunity for everyone in the
global workforce. To make this happen, LinkedIn offers a reactive Job Search
system, and a proactive Jobs You May Be Interested In (JYMBII) system to match
the best candidates with their dream jobs. One of the most challenging tasks
for developing these systems is to properly extract important skill entities
from job postings and then target members with matched attributes. In this
work, we show that the commonly used text-based \emph{salience and
market-agnostic} skill extraction approach is sub-optimal because it only
considers skill mention and ignores the salient level of a skill and its market
dynamics, i.e., the market supply and demand influence on the importance of
skills. To address the above drawbacks, we present \model, our deployed
\emph{salience and market-aware} skill extraction system. The proposed \model
~shows promising results in improving the online performance of job
recommendation (JYMBII) ( job apply) and skill suggestions for job
posters ( suggestion rejection rate). Lastly, we present case studies to
show interesting insights that contrast traditional skill recognition method
and the proposed \model~from occupation, industry, country, and individual
skill levels. Based on the above promising results, we deployed the \model
~online to extract job targeting skills for all M job postings served at
LinkedIn.Comment: 9 pages, to appear in KDD202
Investigating effort prediction of web-based applications using CBR on the ISBSG dataset
As web-based applications become more popular and more sophisticated, so does the requirement for early accurate estimates of the effort required to build such systems. Case-based reasoning (CBR) has been shown to be a reasonably effective estimation strategy, although it has not been widely explored in the context of web applications. This paper reports on a study carried out on a subset of the ISBSG dataset to examine the optimal number of analogies that should be used in making a prediction. The results show that it is not possible to select such a value with confidence, and that, in common with other findings in different domains, the effectiveness of CBR is hampered by other factors including the characteristics of the underlying dataset (such as the spread of data and presence of outliers) and the calculation employed to evaluate the distance function (in particular, the treatment of numeric and categorical data)
Rivalsā Reactions to Mergers and Acquisitions
Mergers and acquisitions research has principally focused on attributes of the acquiring firm and post-acquisition outcomes. To extend our knowledge, we focus on external factors, in particular rival responses, and explore when and how rivals respond to their competitorās acquisitions. Leveraging the awarenessāmotivationācapability framework, we predict and find evidence that a rivalās dependence on markets in common with the acquirer, resource similarity between rival and acquirer, and a rivalās organizational slack increase the volume and, in some cases, also the complexity of a rivalās competitive actions following an acquisition. Furthermore, the type of acquisition positively moderates some of these relationships. The results extend our understanding of the influence of mergers and acquisitions on competitive dynamics in the marketplace
Definition, Measurement and Determinants of the Consumer's Willingness to Pay: a Critical Synthesis and Directions for Further Research
Differentiated prices, bundling, Web auctions : firms' pricing practices are evolving. When there is no market or for customised pricing, the willingness-to-pay concept seems to be interesting. This article aims at presenting a synthesis of the marketing research stream relative to willingness to pay. First, a definition of the concept is given and compared to other similar concepts, notably reference price and acceptable price. Then the methods of measurement are presented, compared to those used to measure elasticity and criticized. Furthermore, the research on external determinants of willingness to pay is commented. Finally, numerous directions for further research are proposed.willingness to pay, price elasticity, reference price, acceptable price, conjoint analysis, contingent valuation, Vickrey auctions, BDM lottery, prices
Transaction Costs and Profitability in UK Manufacturing
This paper explores the impact of transaction costs on performance at firm and industry levels using a sample of 7350 UK manufacturing firms. This is achieved by estimating a profit function with estimated transaction costs as a right hand side variable. The discussion has two specific objectives. (1) To show how firm and average industry transaction costs can be estimated using a stochastic frontier method. (2) To examine a central claim of transaction cost theory that links these costs to performance. In addition the different impacts of static and dynamic transaction costs are emphasised, with the different impacts being respectively negative and positive on profitability. Broadly speaking it is shown that such costs do impact on performance in a way consistent with both static and dynamic costs, in different industries, and that the impacts hold after a series of robustness checks. In addition it is shown that the impacts can depend on monopoly power, firm scale, and firm growth
Fit for planning? An evaluation of the application of development viability appraisal models in the UK planning system
The aim of this paper is to critically examine the application of development appraisal to viability assessment in the planning system. This evaluation is of development appraisal models in general and also their use in particular applications associated with estimating planning obligation capacity. The paper is organised into four themes:
Ā· The context and conceptual basis for development viability appraisal
Ā· A review of development viability appraisal methods
Ā· A discussion of selected key inputs into a development viability appraisal
Ā· A discussion of the applications of development viability appraisals in the planning system
It is assumed that readers are familiar with the basic models and information needs of development viability appraisal rather than at the cutting edge of practice and/or academ
Non-Linearity in the Determinants of Capital Structure: Evidence from UK Firms
We develop a model of the firmās maximization programme in which the firmās capital structure is a non linear function of a vector of costs including asymmetric information costs and is subject to a debt ceiling. Using conditional quantile regression methods, we test for the existence of such a non- linearity in a heterogeneous sample of UK firms and demonstrate that, by exploiting more fully the distribution of leverage, this technique yields new insights into the choice of leverage ratio. Not only is the estimated effect of the explanatory variables different at different quantiles of the distribution, we find evidence that the effect of a variable changes sign between low leveraged and high leveraged firms
Predicting human preferences using the block structure of complex social networks
With ever-increasing available data, predicting individuals' preferences and
helping them locate the most relevant information has become a pressing need.
Understanding and predicting preferences is also important from a fundamental
point of view, as part of what has been called a "new" computational social
science. Here, we propose a novel approach based on stochastic block models,
which have been developed by sociologists as plausible models of complex
networks of social interactions. Our model is in the spirit of predicting
individuals' preferences based on the preferences of others but, rather than
fitting a particular model, we rely on a Bayesian approach that samples over
the ensemble of all possible models. We show that our approach is considerably
more accurate than leading recommender algorithms, with major relative
improvements between 38% and 99% over industry-level algorithms. Besides, our
approach sheds light on decision-making processes by identifying groups of
individuals that have consistently similar preferences, and enabling the
analysis of the characteristics of those groups
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