Errata for Inference in Hidden Markov Models


16 Jun 2017

List of errors in the first two printings of the book, ordered by appearance in the text (the errors that have been corrected in the second printing are listed in the second of the two sections below). The most serious errors are those whose page number is typeset in bold face; the other generally do not alter the comprehension (but we are nonetheless very sorry that they are there). This list is also available in PDF format.

Errors in the second printing (December 2006)

Of course (and unfortunately) these errrors were also present in the first printing.

Chapter 2

Page 37

Line 9 should read “the simplified notation μQf instead of (μQ)(f) or μ(Qf).”

Maurice Charbit, 17 Jan 2008




Page 46

Second item should read QW : (W × C) ×W

David Haight, 5 Nov 2007

Chapter 3

Page 53

Line after (3.1) should read “μn denotes the product distribution μ(n+1) on (Yn+1,Y(n+1))

Thiery Balser, 2 Feb 2007




Page 56

Integrand on the right hand side of (3.9) should read f(xk)ϕν,0:n|n(y0:n,dx0:n)

Thiery Balser, 6 Feb 2007




Page 58

Last paragraph before Section 3.1.4: should read “This notation also constitutes”

Drew Creal, 7 Dec 2006




Page 61

Third sentence from bottom: should read “For HMMs” (not HHMs)

Drew Creal, 7 Dec 2006




Page 63

Equation (3.22) should read ϕν,k(f) = cν,k1 f(x) ϕν,k1(dx)Q(x,dx)gk(x)

Maurice Charbit, 17 Jan 2008




Page 138

Equation (5.47) shoud read Xˆk+1|k1 = AkˆXk|k1 + RkÛk|k1 = AkXˆk|k1

Antoine Pichot, 9 Mar 2009




Page 149

Equation (5.104) should read μX|Y = ΣX|Y (               )
 Bt Σ−V1y+ Σ −X1μX

Tommaso Proietti, 9 Jul 2009

Chapter 4

Page 78

Line 12 should read “particular expressions like E[ k=0ns(Xk)Y0:n] and E[( k=0ns(Xk))2Y0:n],”

Maurice Charbit, 17 Jan 2008




Page 91

Line 19 should read “If ξ has a density f

Maurice Charbit, 17 Jan 2008

Chapter 5

Page 141

The ARE expression in Remark 5.2.12 should be Σ = AΣAt AΣBt(BΣBt + SSt)1BΣAt + RRt.

Cornelius Probst, 13 Aug 2012




Page 123

Algorithm 5.1.2 should read “computed during the forward filtering pass (Algorithm 5.1.1)”

Maurice Charbit, 17 Jan 2008




Page 135

The last term in (5.33) should be E(Y Xt)

Maurice Charbit, 17 Jan 20087




Page 139

(5.55) should read Cov(ˆXk+1|k) = Ak Cov(ˆXk|k1)Akt + HkΓkHkt

François Roueff, 16 May 2007




Page 154

The reference below (5.121) should be to (5.11) rather than (5.12)

Maurice Charbit, 17 Jan 2008




Page 155

Line 7 of Section 5.2.6 shoudl read “is a Markov chain on a finite set C,”

Maurice Charbit, 17 Jan 2008

Chapter 6

Page 180

πi should be πk

Federica Citterio, 15 Apr 2017




Page 184

πk(x|xk1,xk) should be πk(x|xk1,xk+1) (three times)

Maurice Charbit, 17 Jan 2008




Page 188

(6.18) should read exp{        2}
 (x−ϕ2xσn2−1)-

Hossein Gholami, 27 Mar 2007




Page 201

In algorithm 6.3.4, last equation on page 201 shoud read Σ0|n(c) = Σ0|0(c) Σ0|0(c)[            ]
 I + Π0|nΣ0|0(c)1Π0|nΣ0|0(c)

Drew Creal, 12 Dec 2006




Page 202

Algorithm 6.3.4 should read Σk|n(c) = Σk|k(c) Σk|k(c)[I + Π  Σ   (c)]
      k|n k|k1Πk|nΣk|k(c)

Drew Creal, 7 Dec 2006




Page 204

First two equations of Example 6.3.7 have misplaced commas and the second one should read Y k = μY (Ck,2) + B(Ck,2)Wk + S(Ck,2)V k

Drew Creal, 7 Dec 2006




Pages 222–231

In Sections 7.2.2.2 (starting from Example 7.2.4), 7.2.2.3, and, 7.2.2.4, the use of Tk is not consistent with its definition in (7.15) and throughout these pages, Tk needs to be understood as Tk1 in the sense of (7.15)

Jimmy Olsson, 24 Jul 2007




Page 224

Last line of Section 7.2.2.2 should read “where the current local likelihood gk(x) = gk(x,Y k) is large,”

Jimmy Olsson, 24 Jul 2007

Chapter 7

Page 213

In last sentence of the page, the claim that “ˆμSIR ν,M,N(f) is an unbiased estimate of μ(f)” is incorrect (the valid statement is given by the equation below)

Jimmy Olsson, 12 Jun 2007




Page 216

In (7.10), Ri(xl,) should be Rl(xl,)

Jimmy Olsson, 12 Jun 2007




Page 225

In the last equation, R(c) should be R(x)

Maurice Charbit, 17 Jan 2008




Page 226

Line -6 should read “the Hessian of log tk(x,) at the mode.”

Julien Cornebise, 1 Jun 2008




Page 230

In Example 7.2.6: First two equations of the EKF approximation should read Kk(x) = 2σu2bak1(x)[                ]
 4σ2ub2a2k−1(x )+ σ2v1 and mk(x) = ak1(x) + Kk(x)[Yk − ba2k− 1(x)]

Drew Creal, 7 Dec 2006




Page 231

Line 4 of second paragraph should read “[...] contained in g1 is large compared to that provided [...]”.

Julien Cornebise, 27 Jan 2009




Page 232

Equation (7.32) should read ^μ IS k,N(f) = i=1Nf(ξik)  ∏k  dμ(ξi)
∑Nj=1l=∏0kdl=ν0 ddlμν(ξlj)

Maurice Charbit, 17 Jan 2008

Chapter 8

Page 253

Last paragraph of Section 8.1 should read “the updated empirical approximation ϕˆ 0:k+1|k+1 should approximate the distribution defined in [...]”

Cornelius Probst, 2 Aug 2010




Page 253

First two sentences after Algorithm 8.1.1, Algorithm 8.1.1 should be Algorithm 7.3.4 (twice)

Tobias Rydén, 12 Apr 2007

Chapter 9

Page 331

Rhs of (9.59) should read i=1MNβk|n(ξkN,i)ψk|n(ξkN,i)∕ i=1MNβk|n(ξkN,i)

Ajay Jasra, 7 Feb 2010




Page 332

ψk|n(x) should be defined as Fk|n⋅⋅⋅Fn1|nf(x) Fk|n⋅⋅⋅Fn1|nf(x0)

Ajay Jasra, 7 Feb 2010




Page 332

In the rewriting of Δk,nN(f), the upper index in the summation in the numerator should be MN

Ajay Jasra, 7 Feb 2010

Chapter 11

Page 408

Equation (11.9) should read ˜θ id=ef j=i0i∑imj----
 k=i0mkˆθ j

Michael Egert, 12 Mar 2007




Page 413

The rightmost term in the second unumbered equation should read E[θ log f(ξi;ˆθ i1)Fi1]

Michael Egert, 12 Mar 2007




Page 416

In (11.23), the sum should read j=i0iˆ
θ j

Michael Egert, 12 Mar 2007




Page 432

The right hand side of the first unnumbered equation should read i=1γi+12∥∇θψ(ˆθ i)2 |S(x)|2p(x;ˆθ i)λ(dx)

Michael Egert, 12 Mar 2007




Page 433

In Theorem 11.3.6 and below, H(θ) should be J(θ) (three times)

Michael Egert, 12 Mar 2007




Page 434

Proof of Lemma 11.3.7 should read θψ[θ(s)]s −∇θc[θ(s)] = 0 (11.51), θ[θ(s)] = −∇θ2F[s;θ(s)]sθ(s)h(s) (11.53) and s[θ(s)] = {  ¯   }
 ∇sθ(s)tθ2F[s;θ(s)]sθ(s)h(s) (11.54) for consistent gradient notations

Michael Egert, 12 Mar 2007




Page 435

W should be J

Michael Egert, 12 Mar 2007




Page 436

W should be J (twice)

Michael Egert, 12 Mar 2007

Chapter 13

Page 487

Unnumbered formula on top of page should read   ′      ′
π(πθ(θ)L)L((yy0:0:nn|θ|θ))- j( ′)
 σσjj2

Oscar Rueda, 2 Apr 2008




Page 501

First sentence of second paragraph of Section 13.3 should read “parameters estimates in HMMs” (not HHMs)

Olivier Cappé, 11 Dec 2006

Errors in the first printing (August 2005)

Chapter 2

Page 35

Unnumbered display in Definition 2.1.1: g should be q

David Carter, 23 Mar 2006

Chapter 3

Page 57

Seven lines after (3.12): should read “as defined in (3.11) and (3.12)”

Drew Creal, 18 Dec 2005




Page 58

One line before section 3.1.4: should read “depend on the distribution”

Drew Creal, 18 Dec 2005




Page 64

In (3.27): ϕν,k(f) = ϕν,k|k1(fgk) should be ϕν,k(f) = cν,k1ϕν,k|k1(fgk)

Tobias Rydén, 16 Feb 2006

Chapter 4

Page 81

First three sum should have k = 0 as lower index (rather k = 1)

Olivier Cappé, 25 Jul 2006




Page 93

Statement of Lemma 4.3.5 should read “For any ξ and ξin...”

Tobias Rydén, 24 Feb 2006




Page 101

There should be only one integral sign in the rhs of (4.32)

Tobias Rydén, 17 Mar 2006

Chapter 5

Page 135

Middle of the page: should read “also correspond to the first two moments”

Drew Creal, 18 Dec 2005




Page 138

In Remark 5.2.28: should read “In the general non-Gaussian model”

Drew Creal, 18 Dec 2005

Chapter 6

Page 184

Three lines from the bottom: should read “the fact that this function”

Drew Creal, 18 Dec 2005




Page 194

Spurious extra word at the beginning of Section 6.3.1.2

Drew Creal, 18 Dec 2005

Chapter 7

Page 226

Sentence above equation (7.21) should read “To choose the parameter”

Drew Creal, 18 Dec 2005




Page 227

Denominator of unnumbered equation after (7.23) should be σk1(x){            }
 η + [x′−mk(x)]2
       σ2k(x)(η+1)2

Olivier Cappé, 07 Dec 2005




Page 228

Text below Figure 7.7 should read “as the MCMC method in Figure 6.9 approximates”

Drew Creal, 18 Dec 2005

Chapter 8

Page 256

In (8.8), f should be fk+1

Olivier Cappé, 07 Jun 2006

Chapter 9

Page 288

Below (9.1): should read “there is a range of results to assess the accuracy”

Drew Creal, 18 Dec 2005

Chapter 10

Page 351

Last two lines of proof of Prop 10.1.4: maximal and maximum should be, respectively, minimal and minimum

Eva Mayer, 17 Apr 2006




Page 366

“Proposition (4.1.3) asserts...” should be “Proposition 4.1.3 asserts...”

Olivier Cappé, 22 Jun 2005




Page 392

Last line of proof of Theorem 10.5.4: “because” is misspelled

Eva Mayer, 17 Apr 2006

Chapter 11

Page 406

First paragraph: should read “produces highly variable parameter estimates”

Drew Creal, 18 Dec 2005




Page 426

“eigenvalues of M(θ)” should be “eigenvalues of θM(θ)

Jimmy Olsson, 29 Nov 2005




Page 427

(11.41) should be Si+1def
 =Sθ(Si) = G(Si), θi+1 = θ(Si+1)

Jimmy Olsson, 29 Nov 2005




Page 431

Inline expression before (11.45) should be ˆθ i = θˆ i1 + γih(θˆ i1) + γiζi

Jimmy Olsson, 29 Nov 2005




Page 432

First line of proof: Mi = j=1iγjζj

Jimmy Olsson, 29 Nov 2005




Page 432

Last term in the rhs of the first unnumbered equation should be |S(x)|2p(x;ˆ
θ i1)λ(dx)

Jimmy Olsson, 29 Nov 2005




Page 432

Line after the first unnumbered equation contains a spurious right parentheses

Jimmy Olsson, 29 Nov 2005

Chapter 12

Page 445

Fifth line from the top: subscript should read −∞ < k <

Eva Mayer, 17 Apr 2006




Page 454

Third line from the bottom: should read fπ instead of fϕ

Eva Mayer, 17 Apr 2006




Page 456

In the middle: should read μ1 < μ2... instead of μi < μ2...

Eva Mayer, 17 Apr 2006




Page 456

Fourth line of Example 12.4.7: should read Xk = i instead of Xk = x

Eva Mayer, 17 Apr 2006




Page 461

Proof of Lemma 12.5.3: 1. should read k, instead of k,−∞

Eva Mayer, 17 Apr 2006

Chapter 13

Page 475

Sentence on first line should read “difficult to come up with”

Drew Creal, 18 Dec 2005

Chapter 14

Page 517

Repeated word “an” in statement of Theorem 14.1.9

Drew Creal, 18 Dec 2005




Page 534

Repeated word “called” in Definition 14.2.26

Eva Mayer, 17 Apr 2006

References

Page 626

Uncapitalized proper names in ref. Barron (1985)

Olivier Cappé, 03 Aug 2005




Page 631

Repeated word “estimation” in ref. Doucet and Robert (2002)

Drew Creal, 18 Dec 2005




Page 631

Uncapitalized word “models” in ref. Elliott et al. (1995)

Olivier Cappé, 08 Jul 2005




Page 632

Typo in the title of Fearnhead (1998)

Olivier Cappé, 17 Jun 2006




Page 635

Incorrect formatting of authors in refs. Jacquier et al. (1994, 2004)

Olivier Cappé, 03 Aug 2005




Page 639

Meng, X.-L. and Dyk, D. V. (1997) should be Meng, X.-L. and Van Dyk, D. (1997)

Olivier Cappé, 16 Feb 2006

Index

Pages 645-652

Page numbers in the index are ahead of the actual pages in the text : the discrepancy starts in part II (p. 347) with 2 pages and goes up to 6 pages for the material in parts III, IV (chapters 14 and 15 and appendices); corrected index available here

Olivier Cappé, 23 Nov 2005